./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.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 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 07:11:48,008 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 07:11:48,011 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 07:11:48,034 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 07:11:48,034 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 07:11:48,035 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 07:11:48,036 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 07:11:48,038 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 07:11:48,039 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 07:11:48,040 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 07:11:48,041 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 07:11:48,042 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 07:11:48,042 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 07:11:48,043 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 07:11:48,044 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 07:11:48,045 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 07:11:48,046 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 07:11:48,047 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 07:11:48,048 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 07:11:48,050 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 07:11:48,051 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 07:11:48,052 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 07:11:48,053 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 07:11:48,053 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 07:11:48,056 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 07:11:48,056 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 07:11:48,056 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 07:11:48,057 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 07:11:48,057 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 07:11:48,058 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 07:11:48,058 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 07:11:48,059 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 07:11:48,060 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 07:11:48,060 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 07:11:48,061 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 07:11:48,061 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 07:11:48,062 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 07:11:48,062 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 07:11:48,062 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 07:11:48,063 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 07:11:48,064 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 07:11:48,065 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 07:11:48,083 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 07:11:48,083 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 07:11:48,083 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 07:11:48,084 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 07:11:48,084 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 07:11:48,085 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 07:11:48,085 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 07:11:48,086 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 07:11:48,086 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 07:11:48,086 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 07:11:48,086 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 07:11:48,087 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 07:11:48,087 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 07:11:48,087 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 07:11:48,087 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 07:11:48,088 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 07:11:48,088 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 07:11:48,088 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 07:11:48,088 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 07:11:48,089 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 07:11:48,089 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 07:11:48,089 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:11:48,089 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 07:11:48,090 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 07:11:48,091 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 07:11:48,091 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 07:11:48,091 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 22e4387c36ff25592bf6c6537ff8412eacb18bdab6752c222fa8ef2a1ca9dbb8 [2021-11-17 07:11:48,286 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 07:11:48,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 07:11:48,315 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 07:11:48,316 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 07:11:48,319 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 07:11:48,320 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-17 07:11:48,384 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfaded9a3/12d32d4474804862bfce952a40c80b21/FLAGa7b5bf374 [2021-11-17 07:11:48,983 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 07:11:48,983 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-17 07:11:49,033 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfaded9a3/12d32d4474804862bfce952a40c80b21/FLAGa7b5bf374 [2021-11-17 07:11:49,123 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bfaded9a3/12d32d4474804862bfce952a40c80b21 [2021-11-17 07:11:49,126 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 07:11:49,129 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 07:11:49,131 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 07:11:49,131 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 07:11:49,137 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 07:11:49,137 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:11:49" (1/1) ... [2021-11-17 07:11:49,139 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@60861d41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:49, skipping insertion in model container [2021-11-17 07:11:49,139 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 07:11:49" (1/1) ... [2021-11-17 07:11:49,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 07:11:49,280 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 07:11:50,993 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-17 07:11:50,996 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-17 07:11:50,997 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-17 07:11:50,997 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-17 07:11:51,010 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:11:51,038 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 07:11:51,331 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284136,284149] [2021-11-17 07:11:51,332 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284302,284315] [2021-11-17 07:11:51,332 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284466,284479] [2021-11-17 07:11:51,333 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-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i[284631,284644] [2021-11-17 07:11:51,336 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 07:11:51,431 INFO L208 MainTranslator]: Completed translation [2021-11-17 07:11:51,431 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51 WrapperNode [2021-11-17 07:11:51,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 07:11:51,432 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 07:11:51,433 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 07:11:51,433 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 07:11:51,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,510 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,682 INFO L137 Inliner]: procedures = 343, calls = 2811, calls flagged for inlining = 190, calls inlined = 160, statements flattened = 4824 [2021-11-17 07:11:51,682 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 07:11:51,683 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 07:11:51,683 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 07:11:51,684 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 07:11:51,691 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,743 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,751 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,845 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,900 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,938 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,974 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 07:11:51,975 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 07:11:51,975 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 07:11:51,977 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 07:11:51,978 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (1/1) ... [2021-11-17 07:11:51,984 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 07:11:51,993 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 07:11:52,004 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 07:11:52,032 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 07:11:52,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-11-17 07:11:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-11-17 07:11:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_intfdata [2021-11-17 07:11:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_intfdata [2021-11-17 07:11:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure usb_submit_urb [2021-11-17 07:11:52,048 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_submit_urb [2021-11-17 07:11:52,048 INFO L130 BoogieDeclarations]: Found specification of procedure __xchg_wrong_size [2021-11-17 07:11:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 07:11:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 07:11:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 07:11:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 07:11:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 07:11:52,049 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 07:11:52,049 INFO L130 BoogieDeclarations]: Found specification of procedure usb_get_dev [2021-11-17 07:11:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_get_dev [2021-11-17 07:11:52,050 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-11-17 07:11:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-11-17 07:11:52,050 INFO L130 BoogieDeclarations]: Found specification of procedure usb_make_path [2021-11-17 07:11:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_make_path [2021-11-17 07:11:52,050 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 07:11:52,050 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 07:11:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure send_packet [2021-11-17 07:11:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure send_packet [2021-11-17 07:11:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure strlcat [2021-11-17 07:11:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcat [2021-11-17 07:11:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure imon_disconnect [2021-11-17 07:11:52,051 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_disconnect [2021-11-17 07:11:52,051 INFO L130 BoogieDeclarations]: Found specification of procedure usb_deregister_dev [2021-11-17 07:11:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_deregister_dev [2021-11-17 07:11:52,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_lock_of_imon_context [2021-11-17 07:11:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_lock_of_imon_context [2021-11-17 07:11:52,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_usb_instance_release_5_4 [2021-11-17 07:11:52,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_usb_instance_release_5_4 [2021-11-17 07:11:52,052 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-17 07:11:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-17 07:11:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-11-17 07:11:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-11-17 07:11:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_driver_lock [2021-11-17 07:11:52,053 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_driver_lock [2021-11-17 07:11:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 07:11:52,053 INFO L130 BoogieDeclarations]: Found specification of procedure input_event [2021-11-17 07:11:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure input_event [2021-11-17 07:11:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 07:11:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 07:11:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 07:11:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 07:11:52,054 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 07:11:52,054 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:11:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-11-17 07:11:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure input_allocate_device [2021-11-17 07:11:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure input_allocate_device [2021-11-17 07:11:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 07:11:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 07:11:52,055 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2021-11-17 07:11:52,055 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_imon_driver_exit_11_2 [2021-11-17 07:11:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure imon_resume [2021-11-17 07:11:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_resume [2021-11-17 07:11:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure kzalloc [2021-11-17 07:11:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure kzalloc [2021-11-17 07:11:52,056 INFO L130 BoogieDeclarations]: Found specification of procedure usb_set_intfdata [2021-11-17 07:11:52,056 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_set_intfdata [2021-11-17 07:11:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 07:11:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 07:11:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_drvdata [2021-11-17 07:11:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_drvdata [2021-11-17 07:11:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_key [2021-11-17 07:11:52,057 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_key [2021-11-17 07:11:52,057 INFO L130 BoogieDeclarations]: Found specification of procedure usb_alloc_urb [2021-11-17 07:11:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_alloc_urb [2021-11-17 07:11:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 07:11:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 07:11:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 07:11:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-11-17 07:11:52,058 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-11-17 07:11:52,058 INFO L130 BoogieDeclarations]: Found specification of procedure input_report_abs [2021-11-17 07:11:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure input_report_abs [2021-11-17 07:11:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 07:11:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 07:11:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 07:11:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure input_free_device [2021-11-17 07:11:52,059 INFO L138 BoogieDeclarations]: Found implementation of procedure input_free_device [2021-11-17 07:11:52,059 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_create_group [2021-11-17 07:11:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_create_group [2021-11-17 07:11:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 07:11:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:11:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-11-17 07:11:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure sysfs_remove_group [2021-11-17 07:11:52,060 INFO L138 BoogieDeclarations]: Found implementation of procedure sysfs_remove_group [2021-11-17 07:11:52,060 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 07:11:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 07:11:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure __create_pipe [2021-11-17 07:11:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure __create_pipe [2021-11-17 07:11:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 07:11:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 07:11:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 07:11:52,061 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 07:11:52,061 INFO L130 BoogieDeclarations]: Found specification of procedure usb_kill_urb [2021-11-17 07:11:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_kill_urb [2021-11-17 07:11:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure usb_fill_int_urb [2021-11-17 07:11:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_fill_int_urb [2021-11-17 07:11:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 07:11:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 07:11:52,062 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:11:52,062 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-11-17 07:11:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 07:11:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure usb_to_input_id [2021-11-17 07:11:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_to_input_id [2021-11-17 07:11:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure input_sync [2021-11-17 07:11:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure input_sync [2021-11-17 07:11:52,063 INFO L130 BoogieDeclarations]: Found specification of procedure noop_llseek [2021-11-17 07:11:52,063 INFO L138 BoogieDeclarations]: Found implementation of procedure noop_llseek [2021-11-17 07:11:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 07:11:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 07:11:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 07:11:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 07:11:52,064 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 07:11:52,064 INFO L130 BoogieDeclarations]: Found specification of procedure input_register_device [2021-11-17 07:11:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure input_register_device [2021-11-17 07:11:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_lock_of_imon_context [2021-11-17 07:11:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_lock_of_imon_context [2021-11-17 07:11:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-11-17 07:11:52,065 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-11-17 07:11:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 07:11:52,065 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 07:11:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 07:11:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 07:11:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure input_set_abs_params [2021-11-17 07:11:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure input_set_abs_params [2021-11-17 07:11:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 07:11:52,066 INFO L130 BoogieDeclarations]: Found specification of procedure display_close [2021-11-17 07:11:52,066 INFO L138 BoogieDeclarations]: Found implementation of procedure display_close [2021-11-17 07:11:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure ___ratelimit [2021-11-17 07:11:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ___ratelimit [2021-11-17 07:11:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:11:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 07:11:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_register_dev [2021-11-17 07:11:52,067 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_register_dev [2021-11-17 07:11:52,067 INFO L130 BoogieDeclarations]: Found specification of procedure usb_free_urb [2021-11-17 07:11:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure usb_free_urb [2021-11-17 07:11:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 07:11:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 07:11:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_driver_lock [2021-11-17 07:11:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_driver_lock [2021-11-17 07:11:52,068 INFO L130 BoogieDeclarations]: Found specification of procedure input_unregister_device [2021-11-17 07:11:52,068 INFO L138 BoogieDeclarations]: Found implementation of procedure input_unregister_device [2021-11-17 07:11:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure imon_find_endpoints [2021-11-17 07:11:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure imon_find_endpoints [2021-11-17 07:11:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure display_open [2021-11-17 07:11:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure display_open [2021-11-17 07:11:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 07:11:52,069 INFO L130 BoogieDeclarations]: Found specification of procedure interface_to_usbdev [2021-11-17 07:11:52,069 INFO L138 BoogieDeclarations]: Found implementation of procedure interface_to_usbdev [2021-11-17 07:11:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 07:11:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 07:11:52,070 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 07:11:52,070 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 07:11:52,737 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 07:11:52,741 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 07:11:52,953 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 07:12:07,696 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 07:12:07,753 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 07:12:07,769 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 07:12:07,770 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-11-17 07:12:07,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:12:07 BoogieIcfgContainer [2021-11-17 07:12:07,773 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 07:12:07,775 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 07:12:07,775 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 07:12:07,790 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 07:12:07,790 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 07:11:49" (1/3) ... [2021-11-17 07:12:07,791 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e75d721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:12:07, skipping insertion in model container [2021-11-17 07:12:07,791 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 07:11:51" (2/3) ... [2021-11-17 07:12:07,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6e75d721 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 07:12:07, skipping insertion in model container [2021-11-17 07:12:07,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 07:12:07" (3/3) ... [2021-11-17 07:12:07,795 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-media-rc-imon.cil.i [2021-11-17 07:12:07,799 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 07:12:07,800 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 07:12:07,847 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 07:12:07,852 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 07:12:07,852 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 07:12:07,889 INFO L276 IsEmpty]: Start isEmpty. Operand has 1388 states, 968 states have (on average 1.2954545454545454) internal successors, (1254), 977 states have internal predecessors, (1254), 350 states have call successors, (350), 69 states have call predecessors, (350), 68 states have return successors, (344), 343 states have call predecessors, (344), 344 states have call successors, (344) [2021-11-17 07:12:07,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 235 [2021-11-17 07:12:07,906 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:07,906 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:07,907 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:07,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:07,912 INFO L85 PathProgramCache]: Analyzing trace with hash -1749401486, now seen corresponding path program 1 times [2021-11-17 07:12:07,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:07,919 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1199379844] [2021-11-17 07:12:07,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:07,920 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:08,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:08,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,605 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:08,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:08,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:08,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:08,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:08,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:08,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:08,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:08,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,778 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:08,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:08,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:08,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,870 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:08,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:08,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:08,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:08,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:08,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:08,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:08,980 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:08,981 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:08,985 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1199379844] [2021-11-17 07:12:08,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1199379844] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:08,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:08,986 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:08,987 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1734452786] [2021-11-17 07:12:08,987 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:08,992 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:08,992 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:09,017 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:09,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:09,023 INFO L87 Difference]: Start difference. First operand has 1388 states, 968 states have (on average 1.2954545454545454) internal successors, (1254), 977 states have internal predecessors, (1254), 350 states have call successors, (350), 69 states have call predecessors, (350), 68 states have return successors, (344), 343 states have call predecessors, (344), 344 states have call successors, (344) Second operand has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:12:11,120 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:13,201 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 07:12:15,780 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:15,780 INFO L93 Difference]: Finished difference Result 3991 states and 5737 transitions. [2021-11-17 07:12:15,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:12:15,785 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 234 [2021-11-17 07:12:15,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:15,823 INFO L225 Difference]: With dead ends: 3991 [2021-11-17 07:12:15,823 INFO L226 Difference]: Without dead ends: 2631 [2021-11-17 07:12:15,836 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 80 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:12:15,839 INFO L933 BasicCegarLoop]: 2139 mSDtfsCounter, 1860 mSDsluCounter, 2720 mSDsCounter, 0 mSdLazyCounter, 892 mSolverCounterSat, 757 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2094 SdHoareTripleChecker+Valid, 4859 SdHoareTripleChecker+Invalid, 1651 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 757 IncrementalHoareTripleChecker+Valid, 892 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:15,843 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2094 Valid, 4859 Invalid, 1651 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [757 Valid, 892 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-11-17 07:12:15,862 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2631 states. [2021-11-17 07:12:16,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2631 to 2573. [2021-11-17 07:12:16,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2573 states, 1813 states have (on average 1.2840595697738555) internal successors, (2328), 1837 states have internal predecessors, (2328), 624 states have call successors, (624), 134 states have call predecessors, (624), 133 states have return successors, (620), 613 states have call predecessors, (620), 620 states have call successors, (620) [2021-11-17 07:12:16,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2573 states to 2573 states and 3572 transitions. [2021-11-17 07:12:16,073 INFO L78 Accepts]: Start accepts. Automaton has 2573 states and 3572 transitions. Word has length 234 [2021-11-17 07:12:16,076 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:16,076 INFO L470 AbstractCegarLoop]: Abstraction has 2573 states and 3572 transitions. [2021-11-17 07:12:16,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.75) internal successors, (43), 3 states have internal predecessors, (43), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:12:16,077 INFO L276 IsEmpty]: Start isEmpty. Operand 2573 states and 3572 transitions. [2021-11-17 07:12:16,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2021-11-17 07:12:16,091 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:16,092 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:16,092 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 07:12:16,092 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:16,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:16,093 INFO L85 PathProgramCache]: Analyzing trace with hash 498339287, now seen corresponding path program 1 times [2021-11-17 07:12:16,093 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:16,095 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27321234] [2021-11-17 07:12:16,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:16,096 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:16,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:16,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:16,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:16,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,497 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:16,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:16,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,527 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:16,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,542 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:16,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,560 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:16,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:16,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:16,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:16,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:16,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:16,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:16,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:16,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:16,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:16,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,685 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:16,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:16,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:16,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:16,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:16,774 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:16,774 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:16,774 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27321234] [2021-11-17 07:12:16,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27321234] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:16,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:16,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 07:12:16,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [780727865] [2021-11-17 07:12:16,775 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:16,777 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 07:12:16,777 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:16,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 07:12:16,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 07:12:16,778 INFO L87 Difference]: Start difference. First operand 2573 states and 3572 transitions. Second operand has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:12:18,827 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 07:12:20,892 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 07:12:26,678 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:26,679 INFO L93 Difference]: Finished difference Result 9703 states and 13449 transitions. [2021-11-17 07:12:26,679 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:12:26,679 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 235 [2021-11-17 07:12:26,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:26,720 INFO L225 Difference]: With dead ends: 9703 [2021-11-17 07:12:26,720 INFO L226 Difference]: Without dead ends: 7173 [2021-11-17 07:12:26,729 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 88 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 07:12:26,730 INFO L933 BasicCegarLoop]: 2495 mSDtfsCounter, 9589 mSDsluCounter, 3605 mSDsCounter, 0 mSdLazyCounter, 2838 mSolverCounterSat, 4293 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10250 SdHoareTripleChecker+Valid, 6100 SdHoareTripleChecker+Invalid, 7133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 4293 IncrementalHoareTripleChecker+Valid, 2838 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 9.4s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:26,731 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [10250 Valid, 6100 Invalid, 7133 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [4293 Valid, 2838 Invalid, 2 Unknown, 0 Unchecked, 9.4s Time] [2021-11-17 07:12:26,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7173 states. [2021-11-17 07:12:26,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7173 to 7011. [2021-11-17 07:12:26,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7011 states, 4975 states have (on average 1.2812060301507537) internal successors, (6374), 5047 states have internal predecessors, (6374), 1650 states have call successors, (1650), 384 states have call predecessors, (1650), 383 states have return successors, (1646), 1615 states have call predecessors, (1646), 1646 states have call successors, (1646) [2021-11-17 07:12:27,016 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7011 states to 7011 states and 9670 transitions. [2021-11-17 07:12:27,018 INFO L78 Accepts]: Start accepts. Automaton has 7011 states and 9670 transitions. Word has length 235 [2021-11-17 07:12:27,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:27,019 INFO L470 AbstractCegarLoop]: Abstraction has 7011 states and 9670 transitions. [2021-11-17 07:12:27,019 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 7.333333333333333) internal successors, (44), 5 states have internal predecessors, (44), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-11-17 07:12:27,020 INFO L276 IsEmpty]: Start isEmpty. Operand 7011 states and 9670 transitions. [2021-11-17 07:12:27,023 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 240 [2021-11-17 07:12:27,024 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:27,024 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:27,024 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 07:12:27,024 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:27,025 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:27,025 INFO L85 PathProgramCache]: Analyzing trace with hash 528872885, now seen corresponding path program 1 times [2021-11-17 07:12:27,025 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:27,025 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1974359968] [2021-11-17 07:12:27,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:27,026 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:27,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:27,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:27,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:27,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:27,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,280 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:27,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:27,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:27,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:27,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:27,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:27,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:27,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:27,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:27,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,386 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:27,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:27,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:27,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,417 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:27,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:27,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:27,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:27,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 07:12:27,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:27,461 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:27,461 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:27,461 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1974359968] [2021-11-17 07:12:27,461 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1974359968] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:27,462 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:27,462 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:27,462 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341494263] [2021-11-17 07:12:27,462 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:27,463 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:27,464 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:27,465 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:27,465 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:27,465 INFO L87 Difference]: Start difference. First operand 7011 states and 9670 transitions. Second operand has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:29,510 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:31,583 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 07:12:33,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:33,751 INFO L93 Difference]: Finished difference Result 15148 states and 20882 transitions. [2021-11-17 07:12:33,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:12:33,752 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 239 [2021-11-17 07:12:33,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:33,798 INFO L225 Difference]: With dead ends: 15148 [2021-11-17 07:12:33,798 INFO L226 Difference]: Without dead ends: 8180 [2021-11-17 07:12:33,824 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:12:33,825 INFO L933 BasicCegarLoop]: 2069 mSDtfsCounter, 1510 mSDsluCounter, 2687 mSDsCounter, 0 mSdLazyCounter, 808 mSolverCounterSat, 624 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1695 SdHoareTripleChecker+Valid, 4756 SdHoareTripleChecker+Invalid, 1434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 624 IncrementalHoareTripleChecker+Valid, 808 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.9s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:33,825 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1695 Valid, 4756 Invalid, 1434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [624 Valid, 808 Invalid, 2 Unknown, 0 Unchecked, 5.9s Time] [2021-11-17 07:12:33,834 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8180 states. [2021-11-17 07:12:34,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8180 to 8043. [2021-11-17 07:12:34,162 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8043 states, 5715 states have (on average 1.2778652668416448) internal successors, (7303), 5794 states have internal predecessors, (7303), 1869 states have call successors, (1869), 457 states have call predecessors, (1869), 456 states have return successors, (1865), 1833 states have call predecessors, (1865), 1865 states have call successors, (1865) [2021-11-17 07:12:34,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8043 states to 8043 states and 11037 transitions. [2021-11-17 07:12:34,195 INFO L78 Accepts]: Start accepts. Automaton has 8043 states and 11037 transitions. Word has length 239 [2021-11-17 07:12:34,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:34,196 INFO L470 AbstractCegarLoop]: Abstraction has 8043 states and 11037 transitions. [2021-11-17 07:12:34,197 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 11.75) internal successors, (47), 3 states have internal predecessors, (47), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:34,198 INFO L276 IsEmpty]: Start isEmpty. Operand 8043 states and 11037 transitions. [2021-11-17 07:12:34,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 244 [2021-11-17 07:12:34,202 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:34,202 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:34,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 07:12:34,202 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:34,203 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:34,203 INFO L85 PathProgramCache]: Analyzing trace with hash -1199798178, now seen corresponding path program 1 times [2021-11-17 07:12:34,203 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:34,203 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [783659870] [2021-11-17 07:12:34,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:34,204 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:34,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:34,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,385 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:34,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:34,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,398 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,405 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:34,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:34,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:34,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,430 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:34,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,435 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:34,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:34,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:34,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:34,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:34,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:34,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:34,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:34,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:34,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:34,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:34,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:34,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,540 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:34,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2021-11-17 07:12:34,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:34,552 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:34,553 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:34,553 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [783659870] [2021-11-17 07:12:34,553 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [783659870] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:34,553 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:34,553 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:34,554 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [67957103] [2021-11-17 07:12:34,554 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:34,554 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:34,555 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:34,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:34,555 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:34,555 INFO L87 Difference]: Start difference. First operand 8043 states and 11037 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:36,598 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:38,660 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 07:12:41,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:41,168 INFO L93 Difference]: Finished difference Result 22881 states and 31439 transitions. [2021-11-17 07:12:41,168 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:12:41,169 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 243 [2021-11-17 07:12:41,169 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:41,254 INFO L225 Difference]: With dead ends: 22881 [2021-11-17 07:12:41,254 INFO L226 Difference]: Without dead ends: 14881 [2021-11-17 07:12:41,282 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:12:41,288 INFO L933 BasicCegarLoop]: 2134 mSDtfsCounter, 1877 mSDsluCounter, 2729 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 750 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2116 SdHoareTripleChecker+Valid, 4863 SdHoareTripleChecker+Invalid, 1617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 750 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.2s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:41,289 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2116 Valid, 4863 Invalid, 1617 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [750 Valid, 865 Invalid, 2 Unknown, 0 Unchecked, 6.2s Time] [2021-11-17 07:12:41,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14881 states. [2021-11-17 07:12:41,845 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14881 to 14604. [2021-11-17 07:12:41,867 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14604 states, 10380 states have (on average 1.276878612716763) internal successors, (13254), 10541 states have internal predecessors, (13254), 3372 states have call successors, (3372), 850 states have call predecessors, (3372), 849 states have return successors, (3368), 3290 states have call predecessors, (3368), 3368 states have call successors, (3368) [2021-11-17 07:12:41,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14604 states to 14604 states and 19994 transitions. [2021-11-17 07:12:41,920 INFO L78 Accepts]: Start accepts. Automaton has 14604 states and 19994 transitions. Word has length 243 [2021-11-17 07:12:41,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:41,924 INFO L470 AbstractCegarLoop]: Abstraction has 14604 states and 19994 transitions. [2021-11-17 07:12:41,924 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:41,924 INFO L276 IsEmpty]: Start isEmpty. Operand 14604 states and 19994 transitions. [2021-11-17 07:12:41,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2021-11-17 07:12:41,927 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:41,927 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:41,927 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 07:12:41,928 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:41,928 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:41,928 INFO L85 PathProgramCache]: Analyzing trace with hash -1110604167, now seen corresponding path program 1 times [2021-11-17 07:12:41,929 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:41,929 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1944580028] [2021-11-17 07:12:41,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:41,929 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:42,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:42,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:42,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:42,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:42,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:42,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:42,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:42,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:42,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:42,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:42,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,369 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:42,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,380 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:42,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:42,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:42,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:42,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:42,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:42,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,449 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:42,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:42,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:42,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:42,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 07:12:42,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:42,490 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:42,490 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:42,491 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1944580028] [2021-11-17 07:12:42,491 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1944580028] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:42,491 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:42,491 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:42,491 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1824551634] [2021-11-17 07:12:42,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:42,493 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:42,493 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:42,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:42,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:42,494 INFO L87 Difference]: Start difference. First operand 14604 states and 19994 transitions. Second operand has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:44,541 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:46,604 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 07:12:48,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:48,663 INFO L93 Difference]: Finished difference Result 36675 states and 50180 transitions. [2021-11-17 07:12:48,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:12:48,664 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 245 [2021-11-17 07:12:48,666 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:48,748 INFO L225 Difference]: With dead ends: 36675 [2021-11-17 07:12:48,748 INFO L226 Difference]: Without dead ends: 22114 [2021-11-17 07:12:48,794 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:12:48,795 INFO L933 BasicCegarLoop]: 2047 mSDtfsCounter, 1199 mSDsluCounter, 2696 mSDsCounter, 0 mSdLazyCounter, 771 mSolverCounterSat, 585 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1345 SdHoareTripleChecker+Valid, 4743 SdHoareTripleChecker+Invalid, 1358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 585 IncrementalHoareTripleChecker+Valid, 771 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.7s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:48,795 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1345 Valid, 4743 Invalid, 1358 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [585 Valid, 771 Invalid, 2 Unknown, 0 Unchecked, 5.7s Time] [2021-11-17 07:12:48,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22114 states. [2021-11-17 07:12:49,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22114 to 21797. [2021-11-17 07:12:49,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21797 states, 15657 states have (on average 1.2757233186434183) internal successors, (19974), 15912 states have internal predecessors, (19974), 4826 states have call successors, (4826), 1312 states have call predecessors, (4826), 1311 states have return successors, (4822), 4650 states have call predecessors, (4822), 4822 states have call successors, (4822) [2021-11-17 07:12:49,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21797 states to 21797 states and 29622 transitions. [2021-11-17 07:12:49,746 INFO L78 Accepts]: Start accepts. Automaton has 21797 states and 29622 transitions. Word has length 245 [2021-11-17 07:12:49,746 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:49,747 INFO L470 AbstractCegarLoop]: Abstraction has 21797 states and 29622 transitions. [2021-11-17 07:12:49,747 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.75) internal successors, (51), 3 states have internal predecessors, (51), 3 states have call successors, (26), 3 states have call predecessors, (26), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:49,747 INFO L276 IsEmpty]: Start isEmpty. Operand 21797 states and 29622 transitions. [2021-11-17 07:12:49,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2021-11-17 07:12:49,751 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:49,751 INFO L514 BasicCegarLoop]: trace histogram [20, 20, 19, 19, 19, 19, 19, 19, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 07:12:49,751 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-11-17 07:12:49,751 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:49,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:49,752 INFO L85 PathProgramCache]: Analyzing trace with hash 2010742163, now seen corresponding path program 1 times [2021-11-17 07:12:49,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:49,752 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1704992146] [2021-11-17 07:12:49,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:49,753 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:49,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,915 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:49,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:49,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:49,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:49,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:49,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,962 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:49,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,974 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:49,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:49,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:49,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:49,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:49,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:50,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,013 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:50,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:50,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:50,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:50,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:50,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:50,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:50,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:50,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:50,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:50,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:50,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2021-11-17 07:12:50,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:50,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1596 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1596 trivial. 0 not checked. [2021-11-17 07:12:50,123 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:50,123 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1704992146] [2021-11-17 07:12:50,123 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1704992146] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:50,123 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:50,123 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:50,123 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [607988889] [2021-11-17 07:12:50,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:50,125 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:50,125 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:50,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:50,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:50,126 INFO L87 Difference]: Start difference. First operand 21797 states and 29622 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:52,172 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:54,228 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:12:56,853 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:12:56,853 INFO L93 Difference]: Finished difference Result 62171 states and 84369 transitions. [2021-11-17 07:12:56,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:12:56,854 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) Word has length 244 [2021-11-17 07:12:56,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:12:57,163 INFO L225 Difference]: With dead ends: 62171 [2021-11-17 07:12:57,163 INFO L226 Difference]: Without dead ends: 40417 [2021-11-17 07:12:57,224 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 85 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:12:57,225 INFO L933 BasicCegarLoop]: 2292 mSDtfsCounter, 1828 mSDsluCounter, 2829 mSDsCounter, 0 mSdLazyCounter, 881 mSolverCounterSat, 720 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2066 SdHoareTripleChecker+Valid, 5121 SdHoareTripleChecker+Invalid, 1603 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 720 IncrementalHoareTripleChecker+Valid, 881 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.1s IncrementalHoareTripleChecker+Time [2021-11-17 07:12:57,225 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2066 Valid, 5121 Invalid, 1603 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [720 Valid, 881 Invalid, 2 Unknown, 0 Unchecked, 6.1s Time] [2021-11-17 07:12:57,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40417 states. [2021-11-17 07:12:58,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40417 to 39832. [2021-11-17 07:12:58,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39832 states, 28434 states have (on average 1.2658085390729408) internal successors, (35992), 28957 states have internal predecessors, (35992), 8902 states have call successors, (8902), 2494 states have call predecessors, (8902), 2493 states have return successors, (8898), 8530 states have call predecessors, (8898), 8898 states have call successors, (8898) [2021-11-17 07:12:59,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39832 states to 39832 states and 53792 transitions. [2021-11-17 07:12:59,017 INFO L78 Accepts]: Start accepts. Automaton has 39832 states and 53792 transitions. Word has length 244 [2021-11-17 07:12:59,017 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:12:59,017 INFO L470 AbstractCegarLoop]: Abstraction has 39832 states and 53792 transitions. [2021-11-17 07:12:59,018 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (24), 3 states have call predecessors, (24), 1 states have return successors, (22), 3 states have call predecessors, (22), 3 states have call successors, (22) [2021-11-17 07:12:59,018 INFO L276 IsEmpty]: Start isEmpty. Operand 39832 states and 53792 transitions. [2021-11-17 07:12:59,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2021-11-17 07:12:59,023 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:12:59,023 INFO L514 BasicCegarLoop]: trace histogram [21, 21, 19, 19, 19, 19, 19, 19, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:12:59,023 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-11-17 07:12:59,023 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:12:59,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:12:59,024 INFO L85 PathProgramCache]: Analyzing trace with hash -308158907, now seen corresponding path program 1 times [2021-11-17 07:12:59,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:12:59,024 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030802297] [2021-11-17 07:12:59,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:12:59,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:12:59,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:12:59,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:12:59,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:12:59,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:12:59,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:12:59,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:12:59,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:12:59,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:12:59,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:12:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:12:59,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:12:59,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:12:59,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:12:59,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:12:59,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:12:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:12:59,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:12:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:12:59,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:12:59,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:12:59,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:12:59,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,337 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 07:12:59,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-11-17 07:12:59,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 07:12:59,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:12:59,351 INFO L134 CoverageAnalysis]: Checked inductivity of 1669 backedges. 9 proven. 0 refuted. 0 times theorem prover too weak. 1660 trivial. 0 not checked. [2021-11-17 07:12:59,351 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:12:59,351 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030802297] [2021-11-17 07:12:59,351 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030802297] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:12:59,351 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:12:59,351 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:12:59,352 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185427918] [2021-11-17 07:12:59,352 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:12:59,352 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:12:59,353 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:12:59,353 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:12:59,353 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:12:59,353 INFO L87 Difference]: Start difference. First operand 39832 states and 53792 transitions. Second operand has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:13:01,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:13:03,451 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:13:06,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:13:06,882 INFO L93 Difference]: Finished difference Result 117972 states and 159771 transitions. [2021-11-17 07:13:06,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:13:06,883 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) Word has length 270 [2021-11-17 07:13:06,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:13:07,289 INFO L225 Difference]: With dead ends: 117972 [2021-11-17 07:13:07,289 INFO L226 Difference]: Without dead ends: 78183 [2021-11-17 07:13:07,414 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 86 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:13:07,415 INFO L933 BasicCegarLoop]: 3485 mSDtfsCounter, 1759 mSDsluCounter, 3573 mSDsCounter, 0 mSdLazyCounter, 914 mSolverCounterSat, 468 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2003 SdHoareTripleChecker+Valid, 7058 SdHoareTripleChecker+Invalid, 1384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 468 IncrementalHoareTripleChecker+Valid, 914 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2021-11-17 07:13:07,416 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2003 Valid, 7058 Invalid, 1384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [468 Valid, 914 Invalid, 2 Unknown, 0 Unchecked, 6.0s Time] [2021-11-17 07:13:07,505 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78183 states. [2021-11-17 07:13:09,993 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78183 to 77071. [2021-11-17 07:13:10,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 77071 states, 54932 states have (on average 1.267021044200102) internal successors, (69600), 55958 states have internal predecessors, (69600), 17311 states have call successors, (17311), 4874 states have call predecessors, (17311), 4825 states have return successors, (17307), 16526 states have call predecessors, (17307), 17307 states have call successors, (17307) [2021-11-17 07:13:10,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 77071 states to 77071 states and 104218 transitions. [2021-11-17 07:13:10,581 INFO L78 Accepts]: Start accepts. Automaton has 77071 states and 104218 transitions. Word has length 270 [2021-11-17 07:13:10,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:13:10,583 INFO L470 AbstractCegarLoop]: Abstraction has 77071 states and 104218 transitions. [2021-11-17 07:13:10,583 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 16.75) internal successors, (67), 3 states have internal predecessors, (67), 3 states have call successors, (28), 3 states have call predecessors, (28), 1 states have return successors, (24), 3 states have call predecessors, (24), 3 states have call successors, (24) [2021-11-17 07:13:10,583 INFO L276 IsEmpty]: Start isEmpty. Operand 77071 states and 104218 transitions. [2021-11-17 07:13:10,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-17 07:13:10,587 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:13:10,587 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:13:10,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-11-17 07:13:10,588 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:13:10,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:13:10,588 INFO L85 PathProgramCache]: Analyzing trace with hash -1387676086, now seen corresponding path program 1 times [2021-11-17 07:13:10,588 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:13:10,588 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [695825401] [2021-11-17 07:13:10,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:13:10,589 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:13:10,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:13:10,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:13:10,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:13:10,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:13:10,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:13:10,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:13:10,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:13:10,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:10,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:10,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:13:10,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:13:11,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:13:11,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:13:11,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:13:11,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:13:11,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:13:11,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,188 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:13:11,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:13:11,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:13:11,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:13:11,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:13:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:13:11,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 07:13:11,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 07:13:11,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 07:13:11,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 07:13:11,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:11,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:13:11,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 07:13:11,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 07:13:11,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:11,276 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 1809 trivial. 0 not checked. [2021-11-17 07:13:11,277 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:13:11,277 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [695825401] [2021-11-17 07:13:11,277 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [695825401] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:13:11,277 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:13:11,277 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 07:13:11,278 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [614283351] [2021-11-17 07:13:11,278 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:13:11,278 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 07:13:11,278 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:13:11,279 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 07:13:11,279 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 07:13:11,279 INFO L87 Difference]: Start difference. First operand 77071 states and 104218 transitions. Second operand has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 07:13:13,323 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 07:13:15,391 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 07:13:20,135 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:13:20,135 INFO L93 Difference]: Finished difference Result 227053 states and 307466 transitions. [2021-11-17 07:13:20,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 07:13:20,136 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) Word has length 298 [2021-11-17 07:13:20,136 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:13:20,871 INFO L225 Difference]: With dead ends: 227053 [2021-11-17 07:13:20,871 INFO L226 Difference]: Without dead ends: 150135 [2021-11-17 07:13:21,254 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 99 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 07:13:21,255 INFO L933 BasicCegarLoop]: 3530 mSDtfsCounter, 1684 mSDsluCounter, 3621 mSDsCounter, 0 mSdLazyCounter, 925 mSolverCounterSat, 436 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1918 SdHoareTripleChecker+Valid, 7151 SdHoareTripleChecker+Invalid, 1363 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 436 IncrementalHoareTripleChecker+Valid, 925 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 5.8s IncrementalHoareTripleChecker+Time [2021-11-17 07:13:21,255 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1918 Valid, 7151 Invalid, 1363 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [436 Valid, 925 Invalid, 2 Unknown, 0 Unchecked, 5.8s Time] [2021-11-17 07:13:21,389 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 150135 states. [2021-11-17 07:13:25,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 150135 to 148131. [2021-11-17 07:13:25,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 148131 states, 106152 states have (on average 1.2653930213279072) internal successors, (134324), 107562 states have internal predecessors, (134324), 32667 states have call successors, (32667), 9358 states have call predecessors, (32667), 9309 states have return successors, (32663), 31786 states have call predecessors, (32663), 32663 states have call successors, (32663) [2021-11-17 07:13:26,445 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 148131 states to 148131 states and 199654 transitions. [2021-11-17 07:13:26,473 INFO L78 Accepts]: Start accepts. Automaton has 148131 states and 199654 transitions. Word has length 298 [2021-11-17 07:13:26,473 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:13:26,474 INFO L470 AbstractCegarLoop]: Abstraction has 148131 states and 199654 transitions. [2021-11-17 07:13:26,474 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 19.25) internal successors, (77), 3 states have internal predecessors, (77), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 3 states have call predecessors, (29), 3 states have call successors, (29) [2021-11-17 07:13:26,474 INFO L276 IsEmpty]: Start isEmpty. Operand 148131 states and 199654 transitions. [2021-11-17 07:13:26,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 299 [2021-11-17 07:13:26,478 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:13:26,479 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:13:26,479 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-11-17 07:13:26,479 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:13:26,479 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:13:26,480 INFO L85 PathProgramCache]: Analyzing trace with hash 535551948, now seen corresponding path program 1 times [2021-11-17 07:13:26,480 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:13:26,480 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [613674193] [2021-11-17 07:13:26,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:13:26,480 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:13:26,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:13:26,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:13:26,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:13:26,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,736 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:13:26,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:13:26,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,756 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:13:26,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,769 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:13:26,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:13:26,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:13:26,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:13:26,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,816 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:13:26,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:13:26,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:13:26,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,851 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:13:26,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:13:26,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:13:26,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:13:26,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:13:26,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:13:26,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:26,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:26,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:13:26,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 07:13:27,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 07:13:27,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 07:13:27,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 07:13:27,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:27,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:13:27,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 07:13:27,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 07:13:27,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:27,280 INFO L134 CoverageAnalysis]: Checked inductivity of 1821 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1821 trivial. 0 not checked. [2021-11-17 07:13:27,281 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:13:27,281 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [613674193] [2021-11-17 07:13:27,281 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [613674193] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:13:27,281 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:13:27,281 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:13:27,282 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [782529001] [2021-11-17 07:13:27,282 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:13:27,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:13:27,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:13:27,283 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:13:27,283 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:13:27,284 INFO L87 Difference]: Start difference. First operand 148131 states and 199654 transitions. Second operand has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:13:29,328 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 07:13:33,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:13:33,632 INFO L93 Difference]: Finished difference Result 167421 states and 221600 transitions. [2021-11-17 07:13:33,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 07:13:33,633 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) Word has length 298 [2021-11-17 07:13:33,633 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:13:34,217 INFO L225 Difference]: With dead ends: 167421 [2021-11-17 07:13:34,218 INFO L226 Difference]: Without dead ends: 167419 [2021-11-17 07:13:34,285 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:13:34,286 INFO L933 BasicCegarLoop]: 1880 mSDtfsCounter, 1316 mSDsluCounter, 5094 mSDsCounter, 0 mSdLazyCounter, 971 mSolverCounterSat, 451 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1442 SdHoareTripleChecker+Valid, 6974 SdHoareTripleChecker+Invalid, 1423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 451 IncrementalHoareTripleChecker+Valid, 971 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.5s IncrementalHoareTripleChecker+Time [2021-11-17 07:13:34,286 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1442 Valid, 6974 Invalid, 1423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [451 Valid, 971 Invalid, 1 Unknown, 0 Unchecked, 3.5s Time] [2021-11-17 07:13:34,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167419 states. [2021-11-17 07:13:38,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 167419 to 164807. [2021-11-17 07:13:39,064 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 164807 states, 117863 states have (on average 1.2560939395739121) internal successors, (148047), 119273 states have internal predecessors, (148047), 34955 states have call successors, (34955), 12035 states have call predecessors, (34955), 11986 states have return successors, (34951), 34074 states have call predecessors, (34951), 34951 states have call successors, (34951) [2021-11-17 07:13:39,583 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 164807 states to 164807 states and 217953 transitions. [2021-11-17 07:13:39,597 INFO L78 Accepts]: Start accepts. Automaton has 164807 states and 217953 transitions. Word has length 298 [2021-11-17 07:13:39,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 07:13:39,598 INFO L470 AbstractCegarLoop]: Abstraction has 164807 states and 217953 transitions. [2021-11-17 07:13:39,599 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.166666666666666) internal successors, (67), 4 states have internal predecessors, (67), 2 states have call successors, (30), 4 states have call predecessors, (30), 1 states have return successors, (28), 2 states have call predecessors, (28), 2 states have call successors, (28) [2021-11-17 07:13:39,599 INFO L276 IsEmpty]: Start isEmpty. Operand 164807 states and 217953 transitions. [2021-11-17 07:13:39,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 304 [2021-11-17 07:13:39,610 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 07:13:39,610 INFO L514 BasicCegarLoop]: trace histogram [23, 23, 19, 19, 19, 19, 19, 19, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 07:13:39,611 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-11-17 07:13:39,611 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 07:13:39,611 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 07:13:39,611 INFO L85 PathProgramCache]: Analyzing trace with hash -1990961445, now seen corresponding path program 1 times [2021-11-17 07:13:39,612 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 07:13:39,612 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131747332] [2021-11-17 07:13:39,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 07:13:39,612 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 07:13:39,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 07:13:39,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,852 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 07:13:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 07:13:39,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 07:13:39,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,880 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 07:13:39,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 07:13:39,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,898 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 07:13:39,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 07:13:39,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 07:13:39,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 07:13:39,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,945 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 07:13:39,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 07:13:39,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,971 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 07:13:39,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 07:13:39,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:39,996 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 07:13:39,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-11-17 07:13:40,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 07:13:40,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-11-17 07:13:40,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,552 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-11-17 07:13:40,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 214 [2021-11-17 07:13:40,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-11-17 07:13:40,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,588 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2021-11-17 07:13:40,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 244 [2021-11-17 07:13:40,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 254 [2021-11-17 07:13:40,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 07:13:40,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,610 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 266 [2021-11-17 07:13:40,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2021-11-17 07:13:40,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 288 [2021-11-17 07:13:40,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2021-11-17 07:13:40,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 07:13:40,631 INFO L134 CoverageAnalysis]: Checked inductivity of 1823 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1821 trivial. 0 not checked. [2021-11-17 07:13:40,631 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 07:13:40,631 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131747332] [2021-11-17 07:13:40,631 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131747332] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 07:13:40,632 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 07:13:40,632 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-11-17 07:13:40,632 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112728933] [2021-11-17 07:13:40,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 07:13:40,633 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-11-17 07:13:40,633 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 07:13:40,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-11-17 07:13:40,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-11-17 07:13:40,634 INFO L87 Difference]: Start difference. First operand 164807 states and 217953 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-11-17 07:13:42,681 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 07:13:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 07:13:46,804 INFO L93 Difference]: Finished difference Result 167421 states and 221601 transitions. [2021-11-17 07:13:46,804 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-11-17 07:13:46,804 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 4 states have internal predecessors, (70), 2 states have call successors, (31), 4 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 303 [2021-11-17 07:13:46,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 07:13:47,636 INFO L225 Difference]: With dead ends: 167421 [2021-11-17 07:13:47,636 INFO L226 Difference]: Without dead ends: 167419 [2021-11-17 07:13:47,696 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 106 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-11-17 07:13:47,697 INFO L933 BasicCegarLoop]: 1861 mSDtfsCounter, 1768 mSDsluCounter, 4381 mSDsCounter, 0 mSdLazyCounter, 822 mSolverCounterSat, 439 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1980 SdHoareTripleChecker+Valid, 6242 SdHoareTripleChecker+Invalid, 1262 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 439 IncrementalHoareTripleChecker+Valid, 822 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-11-17 07:13:47,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1980 Valid, 6242 Invalid, 1262 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [439 Valid, 822 Invalid, 1 Unknown, 0 Unchecked, 3.3s Time] [2021-11-17 07:13:47,821 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 167419 states.