./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-spinlock_drivers-net-ethernet-dnet.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version c3fed411 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-spinlock_drivers-net-ethernet-dnet.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 fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 --- Real Ultimate output --- This is Ultimate 0.2.2-tmp.no-commuhash-c3fed41 [2021-12-18 11:02:32,045 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-18 11:02:32,047 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-18 11:02:32,099 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-18 11:02:32,100 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-18 11:02:32,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-18 11:02:32,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-18 11:02:32,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-18 11:02:32,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-18 11:02:32,113 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-18 11:02:32,113 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-18 11:02:32,115 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-18 11:02:32,115 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-18 11:02:32,117 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-18 11:02:32,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-18 11:02:32,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-18 11:02:32,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-18 11:02:32,123 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-18 11:02:32,125 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-18 11:02:32,129 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-18 11:02:32,131 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-18 11:02:32,131 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-18 11:02:32,133 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-18 11:02:32,134 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-18 11:02:32,136 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-18 11:02:32,136 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-18 11:02:32,137 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-18 11:02:32,138 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-18 11:02:32,138 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-18 11:02:32,139 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-18 11:02:32,139 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-18 11:02:32,140 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-18 11:02:32,142 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-18 11:02:32,143 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-18 11:02:32,144 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-18 11:02:32,144 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-18 11:02:32,145 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-18 11:02:32,145 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-18 11:02:32,145 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-18 11:02:32,146 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-18 11:02:32,146 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-18 11:02:32,147 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-18 11:02:32,167 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-18 11:02:32,168 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-18 11:02:32,168 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-18 11:02:32,168 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-18 11:02:32,169 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-18 11:02:32,169 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-18 11:02:32,169 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-18 11:02:32,169 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * Use SBE=true [2021-12-18 11:02:32,170 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-18 11:02:32,170 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-18 11:02:32,171 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-18 11:02:32,171 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-18 11:02:32,171 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-18 11:02:32,171 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-18 11:02:32,171 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-18 11:02:32,171 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-18 11:02:32,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:02:32,172 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-18 11:02:32,172 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-18 11:02:32,172 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-18 11:02:32,172 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-18 11:02:32,172 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-18 11:02:32,173 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-18 11:02:32,173 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-18 11:02:32,173 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-18 11:02:32,173 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-18 11:02:32,173 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fbb6aba39a63540626ae26255eab93a5f2c0864f87ba11cb320579066e7aefd2 [2021-12-18 11:02:32,390 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-18 11:02:32,412 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-18 11:02:32,415 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-18 11:02:32,416 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-18 11:02:32,417 INFO L275 PluginConnector]: CDTParser initialized [2021-12-18 11:02:32,418 INFO L432 ainManager$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-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-18 11:02:32,471 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30c1af2/dc8fb736f5e04db0ba269aad3928c8a3/FLAG868519818 [2021-12-18 11:02:33,228 INFO L306 CDTParser]: Found 1 translation units. [2021-12-18 11:02:33,229 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-18 11:02:33,286 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30c1af2/dc8fb736f5e04db0ba269aad3928c8a3/FLAG868519818 [2021-12-18 11:02:33,486 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a30c1af2/dc8fb736f5e04db0ba269aad3928c8a3 [2021-12-18 11:02:33,488 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-18 11:02:33,490 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-18 11:02:33,495 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-18 11:02:33,495 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-18 11:02:33,498 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-18 11:02:33,499 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:33" (1/1) ... [2021-12-18 11:02:33,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d2ea305 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:33, skipping insertion in model container [2021-12-18 11:02:33,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.12 11:02:33" (1/1) ... [2021-12-18 11:02:33,507 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-18 11:02:33,625 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-18 11:02:35,737 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-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2021-12-18 11:02:35,741 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-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2021-12-18 11:02:35,742 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-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2021-12-18 11:02:35,742 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-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2021-12-18 11:02:35,759 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:02:35,787 INFO L203 MainTranslator]: Completed pre-run [2021-12-18 11:02:36,105 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-spinlock_drivers-net-ethernet-dnet.cil.i[305216,305229] [2021-12-18 11:02:36,106 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-spinlock_drivers-net-ethernet-dnet.cil.i[305385,305398] [2021-12-18 11:02:36,106 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-spinlock_drivers-net-ethernet-dnet.cil.i[305552,305565] [2021-12-18 11:02:36,107 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-spinlock_drivers-net-ethernet-dnet.cil.i[305720,305733] [2021-12-18 11:02:36,114 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-18 11:02:36,248 INFO L208 MainTranslator]: Completed translation [2021-12-18 11:02:36,249 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36 WrapperNode [2021-12-18 11:02:36,249 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-18 11:02:36,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-18 11:02:36,251 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-18 11:02:36,251 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-18 11:02:36,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,346 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,521 INFO L137 Inliner]: procedures = 411, calls = 1991, calls flagged for inlining = 210, calls inlined = 187, statements flattened = 4406 [2021-12-18 11:02:36,522 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-18 11:02:36,523 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-18 11:02:36,523 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-18 11:02:36,523 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-18 11:02:36,532 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,556 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,557 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,650 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,695 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,721 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-18 11:02:36,722 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-18 11:02:36,722 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-18 11:02:36,724 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-18 11:02:36,725 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (1/1) ... [2021-12-18 11:02:36,732 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-18 11:02:36,741 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-18 11:02:36,760 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) [2021-12-18 11:02:36,785 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 [2021-12-18 11:02:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_probe [2021-12-18 11:02:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_probe [2021-12-18 11:02:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-18 11:02:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-18 11:02:36,800 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-18 11:02:36,800 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-18 11:02:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-18 11:02:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-18 11:02:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:02:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-18 11:02:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-18 11:02:36,801 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-18 11:02:36,801 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 11:02:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_61 [2021-12-18 11:02:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure __dnet_set_hwaddr [2021-12-18 11:02:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure __dnet_set_hwaddr [2021-12-18 11:02:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-18 11:02:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-18 11:02:36,802 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-18 11:02:36,802 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-18 11:02:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-18 11:02:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-18 11:02:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-18 11:02:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-18 11:02:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-18 11:02:36,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-18 11:02:36,803 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-18 11:02:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-12-18 11:02:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-12-18 11:02:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-18 11:02:36,804 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-18 11:02:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-18 11:02:36,804 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-18 11:02:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-18 11:02:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-18 11:02:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-18 11:02:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-18 11:02:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-18 11:02:36,805 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-18 11:02:36,805 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-18 11:02:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_reset_hw [2021-12-18 11:02:36,806 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_reset_hw [2021-12-18 11:02:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:02:36,806 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-18 11:02:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-18 11:02:36,806 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-18 11:02:36,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-18 11:02:36,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-18 11:02:36,807 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-18 11:02:36,807 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-18 11:02:36,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-18 11:02:36,808 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-18 11:02:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-18 11:02:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-18 11:02:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-18 11:02:36,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-18 11:02:36,809 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-18 11:02:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-18 11:02:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-18 11:02:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:02:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-18 11:02:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-18 11:02:36,810 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-18 11:02:36,810 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-18 11:02:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-18 11:02:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-18 11:02:36,811 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-18 11:02:36,811 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-18 11:02:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-18 11:02:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure dev_name [2021-12-18 11:02:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_name [2021-12-18 11:02:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-12-18 11:02:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-12-18 11:02:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-18 11:02:36,812 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-18 11:02:36,812 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-18 11:02:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-18 11:02:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-18 11:02:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-18 11:02:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_free [2021-12-18 11:02:36,847 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_free [2021-12-18 11:02:36,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure mdiobus_unregister [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure mdiobus_unregister [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_dnet [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_dnet [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_readw_mac [2021-12-18 11:02:36,848 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_readw_mac [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-18 11:02:36,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure __fswab16 [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __fswab16 [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_close [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_close [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure __be16_to_cpup [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __be16_to_cpup [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_handle_link_change [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_handle_link_change [2021-12-18 11:02:36,849 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-18 11:02:36,849 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_writew_mac [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_writew_mac [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_remove [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_remove [2021-12-18 11:02:36,850 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-18 11:02:36,850 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure dnet_open [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure dnet_open [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure phy_connect [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure phy_connect [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-18 11:02:36,851 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-18 11:02:36,851 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-18 11:02:37,445 INFO L236 CfgBuilder]: Building ICFG [2021-12-18 11:02:37,448 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-18 11:02:38,065 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-18 11:02:42,479 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-18 11:02:42,552 INFO L277 CfgBuilder]: Performing block encoding [2021-12-18 11:02:42,571 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-18 11:02:42,572 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-18 11:02:42,574 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:02:42 BoogieIcfgContainer [2021-12-18 11:02:42,575 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-18 11:02:42,576 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-18 11:02:42,576 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-18 11:02:42,579 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-18 11:02:42,579 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.12 11:02:33" (1/3) ... [2021-12-18 11:02:42,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bc6d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:02:42, skipping insertion in model container [2021-12-18 11:02:42,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.12 11:02:36" (2/3) ... [2021-12-18 11:02:42,580 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60bc6d64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.12 11:02:42, skipping insertion in model container [2021-12-18 11:02:42,580 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.12 11:02:42" (3/3) ... [2021-12-18 11:02:42,581 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-dnet.cil.i [2021-12-18 11:02:42,585 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-18 11:02:42,585 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-18 11:02:42,641 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-18 11:02:42,653 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 [2021-12-18 11:02:42,653 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-18 11:02:42,696 INFO L276 IsEmpty]: Start isEmpty. Operand has 1366 states, 977 states have (on average 1.2620266120777892) internal successors, (1233), 990 states have internal predecessors, (1233), 324 states have call successors, (324), 63 states have call predecessors, (324), 62 states have return successors, (317), 315 states have call predecessors, (317), 317 states have call successors, (317) [2021-12-18 11:02:42,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2021-12-18 11:02:42,708 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:02:42,709 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:02:42,710 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:02:42,714 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:02:42,714 INFO L85 PathProgramCache]: Analyzing trace with hash -1829789727, now seen corresponding path program 1 times [2021-12-18 11:02:42,721 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:02:42,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266947536] [2021-12-18 11:02:42,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:02:42,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:02:43,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:02:43,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:02:43,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:02:43,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:02:43,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:02:43,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:02:43,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:02:43,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,423 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:02:43,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:02:43,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,459 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:02:43,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:43,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:02:43,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,499 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-18 11:02:43,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:43,522 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 11:02:43,523 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:02:43,524 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266947536] [2021-12-18 11:02:43,525 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [266947536] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:02:43,525 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:02:43,525 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:02:43,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94569256] [2021-12-18 11:02:43,528 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:02:43,531 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:02:43,532 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:02:43,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:02:43,560 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:02:43,565 INFO L87 Difference]: Start difference. First operand has 1366 states, 977 states have (on average 1.2620266120777892) internal successors, (1233), 990 states have internal predecessors, (1233), 324 states have call successors, (324), 63 states have call predecessors, (324), 62 states have return successors, (317), 315 states have call predecessors, (317), 317 states have call successors, (317) Second operand has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:02:46,252 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:02:48,340 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:02:48,340 INFO L93 Difference]: Finished difference Result 3992 states and 5626 transitions. [2021-12-18 11:02:48,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:02:48,343 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 134 [2021-12-18 11:02:48,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:02:48,376 INFO L225 Difference]: With dead ends: 3992 [2021-12-18 11:02:48,377 INFO L226 Difference]: Without dead ends: 2639 [2021-12-18 11:02:48,388 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:02:48,391 INFO L933 BasicCegarLoop]: 2018 mSDtfsCounter, 2134 mSDsluCounter, 2316 mSDsCounter, 0 mSdLazyCounter, 1053 mSolverCounterSat, 830 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 4.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2421 SdHoareTripleChecker+Valid, 4334 SdHoareTripleChecker+Invalid, 1884 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 830 IncrementalHoareTripleChecker+Valid, 1053 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:02:48,392 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2421 Valid, 4334 Invalid, 1884 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [830 Valid, 1053 Invalid, 1 Unknown, 0 Unchecked, 4.5s Time] [2021-12-18 11:02:48,410 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2639 states. [2021-12-18 11:02:48,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2639 to 2611. [2021-12-18 11:02:48,597 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2611 states, 1888 states have (on average 1.257415254237288) internal successors, (2374), 1912 states have internal predecessors, (2374), 599 states have call successors, (599), 122 states have call predecessors, (599), 121 states have return successors, (596), 592 states have call predecessors, (596), 596 states have call successors, (596) [2021-12-18 11:02:48,617 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2611 states to 2611 states and 3569 transitions. [2021-12-18 11:02:48,621 INFO L78 Accepts]: Start accepts. Automaton has 2611 states and 3569 transitions. Word has length 134 [2021-12-18 11:02:48,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:02:48,628 INFO L470 AbstractCegarLoop]: Abstraction has 2611 states and 3569 transitions. [2021-12-18 11:02:48,628 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.0) internal successors, (32), 3 states have internal predecessors, (32), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:02:48,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2611 states and 3569 transitions. [2021-12-18 11:02:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2021-12-18 11:02:48,639 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:02:48,640 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:02:48,640 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-18 11:02:48,640 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:02:48,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:02:48,641 INFO L85 PathProgramCache]: Analyzing trace with hash 493076079, now seen corresponding path program 1 times [2021-12-18 11:02:48,641 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:02:48,641 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519030943] [2021-12-18 11:02:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:02:48,642 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:02:48,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:02:48,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:02:48,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:02:48,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:02:48,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,835 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:02:48,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:02:48,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:02:48,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:02:48,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:02:48,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:02:48,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:48,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:02:48,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2021-12-18 11:02:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:48,983 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 11:02:48,984 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:02:48,984 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519030943] [2021-12-18 11:02:48,984 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519030943] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:02:48,984 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:02:48,984 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:02:48,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [868722029] [2021-12-18 11:02:48,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:02:48,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:02:48,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:02:48,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:02:48,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:02:48,987 INFO L87 Difference]: Start difference. First operand 2611 states and 3569 transitions. Second operand has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:02:51,496 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:02:54,601 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:02:55,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:02:55,720 INFO L93 Difference]: Finished difference Result 7633 states and 10625 transitions. [2021-12-18 11:02:55,720 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:02:55,721 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 138 [2021-12-18 11:02:55,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:02:55,754 INFO L225 Difference]: With dead ends: 7633 [2021-12-18 11:02:55,754 INFO L226 Difference]: Without dead ends: 5047 [2021-12-18 11:02:55,765 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:02:55,767 INFO L933 BasicCegarLoop]: 2157 mSDtfsCounter, 2038 mSDsluCounter, 2439 mSDsCounter, 0 mSdLazyCounter, 1038 mSolverCounterSat, 842 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2276 SdHoareTripleChecker+Valid, 4596 SdHoareTripleChecker+Invalid, 1882 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 842 IncrementalHoareTripleChecker+Valid, 1038 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:02:55,767 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2276 Valid, 4596 Invalid, 1882 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [842 Valid, 1038 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-12-18 11:02:55,774 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5047 states. [2021-12-18 11:02:55,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5047 to 4992. [2021-12-18 11:02:55,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4992 states, 3630 states have (on average 1.2575757575757576) internal successors, (4565), 3684 states have internal predecessors, (4565), 1114 states have call successors, (1114), 242 states have call predecessors, (1114), 245 states have return successors, (1303), 1095 states have call predecessors, (1303), 1111 states have call successors, (1303) [2021-12-18 11:02:56,023 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4992 states to 4992 states and 6982 transitions. [2021-12-18 11:02:56,025 INFO L78 Accepts]: Start accepts. Automaton has 4992 states and 6982 transitions. Word has length 138 [2021-12-18 11:02:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:02:56,028 INFO L470 AbstractCegarLoop]: Abstraction has 4992 states and 6982 transitions. [2021-12-18 11:02:56,028 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.0) internal successors, (36), 3 states have internal predecessors, (36), 3 states have call successors, (15), 3 states have call predecessors, (15), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:02:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4992 states and 6982 transitions. [2021-12-18 11:02:56,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2021-12-18 11:02:56,032 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:02:56,033 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:02:56,033 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-18 11:02:56,033 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:02:56,034 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:02:56,034 INFO L85 PathProgramCache]: Analyzing trace with hash -1667436356, now seen corresponding path program 1 times [2021-12-18 11:02:56,034 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:02:56,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [818366504] [2021-12-18 11:02:56,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:02:56,035 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:02:56,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:02:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:02:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,208 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:02:56,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:02:56,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:02:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:02:56,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:02:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:02:56,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:02:56,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:02:56,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:02:56,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,318 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:02:56,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-18 11:02:56,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:02:56,332 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 11:02:56,332 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:02:56,332 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [818366504] [2021-12-18 11:02:56,333 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [818366504] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:02:56,333 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:02:56,333 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:02:56,333 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1484013291] [2021-12-18 11:02:56,333 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:02:56,334 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:02:56,334 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:02:56,334 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:02:56,335 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:02:56,335 INFO L87 Difference]: Start difference. First operand 4992 states and 6982 transitions. Second operand has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:02:59,249 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:01,399 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:03,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:03,152 INFO L93 Difference]: Finished difference Result 14132 states and 19680 transitions. [2021-12-18 11:03:03,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:03:03,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 145 [2021-12-18 11:03:03,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:03,216 INFO L225 Difference]: With dead ends: 14132 [2021-12-18 11:03:03,217 INFO L226 Difference]: Without dead ends: 9165 [2021-12-18 11:03:03,246 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:03:03,247 INFO L933 BasicCegarLoop]: 2075 mSDtfsCounter, 1718 mSDsluCounter, 2182 mSDsCounter, 0 mSdLazyCounter, 1163 mSolverCounterSat, 799 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1977 SdHoareTripleChecker+Valid, 4257 SdHoareTripleChecker+Invalid, 1964 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 799 IncrementalHoareTripleChecker+Valid, 1163 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:03,248 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1977 Valid, 4257 Invalid, 1964 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [799 Valid, 1163 Invalid, 2 Unknown, 0 Unchecked, 6.5s Time] [2021-12-18 11:03:03,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9165 states. [2021-12-18 11:03:03,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9165 to 9086. [2021-12-18 11:03:03,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9086 states, 6558 states have (on average 1.2447392497712717) internal successors, (8163), 6670 states have internal predecessors, (8163), 2052 states have call successors, (2052), 470 states have call predecessors, (2052), 473 states have return successors, (2249), 2005 states have call predecessors, (2249), 2049 states have call successors, (2249) [2021-12-18 11:03:03,723 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9086 states to 9086 states and 12464 transitions. [2021-12-18 11:03:03,725 INFO L78 Accepts]: Start accepts. Automaton has 9086 states and 12464 transitions. Word has length 145 [2021-12-18 11:03:03,726 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:03,726 INFO L470 AbstractCegarLoop]: Abstraction has 9086 states and 12464 transitions. [2021-12-18 11:03:03,727 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.25) internal successors, (41), 3 states have internal predecessors, (41), 3 states have call successors, (17), 3 states have call predecessors, (17), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:03:03,727 INFO L276 IsEmpty]: Start isEmpty. Operand 9086 states and 12464 transitions. [2021-12-18 11:03:03,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2021-12-18 11:03:03,730 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:03,731 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:03,731 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-18 11:03:03,731 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:03,731 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:03,732 INFO L85 PathProgramCache]: Analyzing trace with hash -656611999, now seen corresponding path program 1 times [2021-12-18 11:03:03,732 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:03,732 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205761042] [2021-12-18 11:03:03,732 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:03,733 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:03,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:03,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:03,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:03,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:03,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,916 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:03,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:03,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,941 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:03,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:03,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:03,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:03,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:04,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:04,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:04,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2021-12-18 11:03:04,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:04,015 INFO L134 CoverageAnalysis]: Checked inductivity of 435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 435 trivial. 0 not checked. [2021-12-18 11:03:04,015 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:04,015 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1205761042] [2021-12-18 11:03:04,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1205761042] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:04,016 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:04,016 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:03:04,016 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1281754461] [2021-12-18 11:03:04,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:04,017 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:03:04,018 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:04,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:03:04,018 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:03:04,019 INFO L87 Difference]: Start difference. First operand 9086 states and 12464 transitions. Second operand has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:03:07,791 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:08,641 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:08,641 INFO L93 Difference]: Finished difference Result 24640 states and 34066 transitions. [2021-12-18 11:03:08,642 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:03:08,643 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) Word has length 153 [2021-12-18 11:03:08,643 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:08,762 INFO L225 Difference]: With dead ends: 24640 [2021-12-18 11:03:08,762 INFO L226 Difference]: Without dead ends: 15579 [2021-12-18 11:03:08,813 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 46 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:03:08,815 INFO L933 BasicCegarLoop]: 1944 mSDtfsCounter, 1757 mSDsluCounter, 2283 mSDsCounter, 0 mSdLazyCounter, 1034 mSolverCounterSat, 832 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1958 SdHoareTripleChecker+Valid, 4227 SdHoareTripleChecker+Invalid, 1867 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 832 IncrementalHoareTripleChecker+Valid, 1034 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:08,816 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1958 Valid, 4227 Invalid, 1867 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [832 Valid, 1034 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-12-18 11:03:08,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15579 states. [2021-12-18 11:03:09,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15579 to 15452. [2021-12-18 11:03:09,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15452 states, 11066 states have (on average 1.2343213446593169) internal successors, (13659), 11278 states have internal predecessors, (13659), 3492 states have call successors, (3492), 896 states have call predecessors, (3492), 891 states have return successors, (4189), 3369 states have call predecessors, (4189), 3489 states have call successors, (4189) [2021-12-18 11:03:09,587 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15452 states to 15452 states and 21340 transitions. [2021-12-18 11:03:09,594 INFO L78 Accepts]: Start accepts. Automaton has 15452 states and 21340 transitions. Word has length 153 [2021-12-18 11:03:09,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:09,595 INFO L470 AbstractCegarLoop]: Abstraction has 15452 states and 21340 transitions. [2021-12-18 11:03:09,596 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 12.5) internal successors, (50), 3 states have internal predecessors, (50), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (13), 3 states have call predecessors, (13), 3 states have call successors, (13) [2021-12-18 11:03:09,596 INFO L276 IsEmpty]: Start isEmpty. Operand 15452 states and 21340 transitions. [2021-12-18 11:03:09,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2021-12-18 11:03:09,599 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:09,599 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 10, 10, 10, 10, 10, 10, 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] [2021-12-18 11:03:09,599 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-18 11:03:09,600 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:09,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:09,600 INFO L85 PathProgramCache]: Analyzing trace with hash 2109483455, now seen corresponding path program 1 times [2021-12-18 11:03:09,601 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:09,601 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [211337757] [2021-12-18 11:03:09,601 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:09,601 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:09,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:09,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,739 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:09,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:09,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,765 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:09,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:09,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,784 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:09,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,903 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:09,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:09,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,930 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:09,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:09,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:09,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:09,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2021-12-18 11:03:09,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2021-12-18 11:03:09,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,978 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2021-12-18 11:03:09,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:09,984 INFO L134 CoverageAnalysis]: Checked inductivity of 474 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 468 trivial. 0 not checked. [2021-12-18 11:03:09,985 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:09,985 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [211337757] [2021-12-18 11:03:09,985 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [211337757] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:09,985 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:09,985 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:03:09,985 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [71488028] [2021-12-18 11:03:09,986 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:09,986 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:03:09,986 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:09,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:03:09,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:03:09,987 INFO L87 Difference]: Start difference. First operand 15452 states and 21340 transitions. Second operand has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 11:03:13,929 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:16,064 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:16,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:16,756 INFO L93 Difference]: Finished difference Result 29258 states and 40524 transitions. [2021-12-18 11:03:16,758 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:03:16,758 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) Word has length 169 [2021-12-18 11:03:16,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:16,827 INFO L225 Difference]: With dead ends: 29258 [2021-12-18 11:03:16,827 INFO L226 Difference]: Without dead ends: 13831 [2021-12-18 11:03:16,889 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:03:16,892 INFO L933 BasicCegarLoop]: 2983 mSDtfsCounter, 1751 mSDsluCounter, 2738 mSDsCounter, 0 mSdLazyCounter, 1120 mSolverCounterSat, 647 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2027 SdHoareTripleChecker+Valid, 5721 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 647 IncrementalHoareTripleChecker+Valid, 1120 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.3s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:16,895 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2027 Valid, 5721 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [647 Valid, 1120 Invalid, 2 Unknown, 0 Unchecked, 6.3s Time] [2021-12-18 11:03:16,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13831 states. [2021-12-18 11:03:17,370 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13831 to 13739. [2021-12-18 11:03:17,390 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13739 states, 9943 states have (on average 1.2314190888061953) internal successors, (12244), 10141 states have internal predecessors, (12244), 3002 states have call successors, (3002), 793 states have call predecessors, (3002), 791 states have return successors, (3671), 2886 states have call predecessors, (3671), 2999 states have call successors, (3671) [2021-12-18 11:03:17,441 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13739 states to 13739 states and 18917 transitions. [2021-12-18 11:03:17,448 INFO L78 Accepts]: Start accepts. Automaton has 13739 states and 18917 transitions. Word has length 169 [2021-12-18 11:03:17,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:17,449 INFO L470 AbstractCegarLoop]: Abstraction has 13739 states and 18917 transitions. [2021-12-18 11:03:17,449 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.75) internal successors, (59), 3 states have internal predecessors, (59), 3 states have call successors, (19), 3 states have call predecessors, (19), 1 states have return successors, (15), 3 states have call predecessors, (15), 3 states have call successors, (15) [2021-12-18 11:03:17,449 INFO L276 IsEmpty]: Start isEmpty. Operand 13739 states and 18917 transitions. [2021-12-18 11:03:17,452 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 11:03:17,452 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:17,453 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:17,453 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-18 11:03:17,453 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:17,454 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:17,454 INFO L85 PathProgramCache]: Analyzing trace with hash -844179788, now seen corresponding path program 1 times [2021-12-18 11:03:17,454 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:17,454 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2106941745] [2021-12-18 11:03:17,454 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:17,454 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:17,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:17,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:17,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:17,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,647 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:17,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:17,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:17,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:17,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:17,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:17,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:17,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:17,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:17,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:17,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:17,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:17,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:17,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:17,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:17,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:17,818 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 567 trivial. 0 not checked. [2021-12-18 11:03:17,819 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:17,819 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2106941745] [2021-12-18 11:03:17,819 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2106941745] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:17,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:17,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:03:17,820 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138890488] [2021-12-18 11:03:17,820 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:17,820 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:03:17,820 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:17,821 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:03:17,821 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:03:17,821 INFO L87 Difference]: Start difference. First operand 13739 states and 18917 transitions. Second operand has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:03:21,793 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:22,377 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:22,378 INFO L93 Difference]: Finished difference Result 40460 states and 55934 transitions. [2021-12-18 11:03:22,378 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:03:22,378 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) Word has length 186 [2021-12-18 11:03:22,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:22,509 INFO L225 Difference]: With dead ends: 40460 [2021-12-18 11:03:22,509 INFO L226 Difference]: Without dead ends: 26815 [2021-12-18 11:03:22,555 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 60 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:03:22,557 INFO L933 BasicCegarLoop]: 2073 mSDtfsCounter, 2103 mSDsluCounter, 2349 mSDsCounter, 0 mSdLazyCounter, 1049 mSolverCounterSat, 844 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2385 SdHoareTripleChecker+Valid, 4422 SdHoareTripleChecker+Invalid, 1894 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 844 IncrementalHoareTripleChecker+Valid, 1049 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:22,557 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2385 Valid, 4422 Invalid, 1894 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [844 Valid, 1049 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-12-18 11:03:22,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26815 states. [2021-12-18 11:03:23,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26815 to 26673. [2021-12-18 11:03:23,435 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26673 states, 19350 states have (on average 1.23343669250646) internal successors, (23867), 19704 states have internal predecessors, (23867), 5787 states have call successors, (5787), 1536 states have call predecessors, (5787), 1533 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:23,663 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26673 states to 26673 states and 36782 transitions. [2021-12-18 11:03:23,672 INFO L78 Accepts]: Start accepts. Automaton has 26673 states and 36782 transitions. Word has length 186 [2021-12-18 11:03:23,672 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:23,673 INFO L470 AbstractCegarLoop]: Abstraction has 26673 states and 36782 transitions. [2021-12-18 11:03:23,673 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.75) internal successors, (55), 3 states have internal predecessors, (55), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (20), 3 states have call predecessors, (20), 3 states have call successors, (20) [2021-12-18 11:03:23,673 INFO L276 IsEmpty]: Start isEmpty. Operand 26673 states and 36782 transitions. [2021-12-18 11:03:23,681 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2021-12-18 11:03:23,681 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:23,681 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:23,682 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-18 11:03:23,682 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:23,682 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:23,683 INFO L85 PathProgramCache]: Analyzing trace with hash -421477962, now seen corresponding path program 1 times [2021-12-18 11:03:23,683 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:23,683 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1030876533] [2021-12-18 11:03:23,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:23,683 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:23,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:23,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:23,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:23,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:23,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:23,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:23,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:23,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:24,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:24,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,021 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,027 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:24,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,053 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,061 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:24,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,080 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:24,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:24,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:24,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:24,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:24,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,129 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:24,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:24,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:24,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:24,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:24,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:24,172 INFO L134 CoverageAnalysis]: Checked inductivity of 573 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-18 11:03:24,172 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:24,173 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1030876533] [2021-12-18 11:03:24,173 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1030876533] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:24,173 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:24,173 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:24,173 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442310757] [2021-12-18 11:03:24,173 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:24,174 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:24,174 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:24,174 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:24,175 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:24,175 INFO L87 Difference]: Start difference. First operand 26673 states and 36782 transitions. Second operand has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 11:03:27,990 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:28,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:28,488 INFO L93 Difference]: Finished difference Result 26799 states and 37085 transitions. [2021-12-18 11:03:28,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:28,490 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) Word has length 186 [2021-12-18 11:03:28,490 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:28,637 INFO L225 Difference]: With dead ends: 26799 [2021-12-18 11:03:28,638 INFO L226 Difference]: Without dead ends: 26797 [2021-12-18 11:03:28,659 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:28,660 INFO L933 BasicCegarLoop]: 1751 mSDtfsCounter, 1812 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 567 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2015 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 1741 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 567 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:28,660 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2015 Valid, 5466 Invalid, 1741 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [567 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 11:03:28,688 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26797 states. [2021-12-18 11:03:29,704 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26797 to 26677. [2021-12-18 11:03:29,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26677 states, 19353 states have (on average 1.2334005063814395) internal successors, (23870), 19707 states have internal predecessors, (23870), 5787 states have call successors, (5787), 1537 states have call predecessors, (5787), 1534 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:29,880 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26677 states to 26677 states and 36785 transitions. [2021-12-18 11:03:29,884 INFO L78 Accepts]: Start accepts. Automaton has 26677 states and 36785 transitions. Word has length 186 [2021-12-18 11:03:29,890 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:29,890 INFO L470 AbstractCegarLoop]: Abstraction has 26677 states and 36785 transitions. [2021-12-18 11:03:29,890 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 8.5) internal successors, (51), 4 states have internal predecessors, (51), 2 states have call successors, (21), 4 states have call predecessors, (21), 1 states have return successors, (19), 2 states have call predecessors, (19), 2 states have call successors, (19) [2021-12-18 11:03:29,891 INFO L276 IsEmpty]: Start isEmpty. Operand 26677 states and 36785 transitions. [2021-12-18 11:03:29,896 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 192 [2021-12-18 11:03:29,896 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:29,896 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:29,896 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-18 11:03:29,897 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:29,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:29,897 INFO L85 PathProgramCache]: Analyzing trace with hash 2049601018, now seen corresponding path program 1 times [2021-12-18 11:03:29,897 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:29,898 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1920393284] [2021-12-18 11:03:29,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:29,898 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:29,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:30,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:30,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:30,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:30,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:30,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:30,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:30,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:30,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:30,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:30,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:30,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:30,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:30,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:30,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:30,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:30,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:30,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:30,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:30,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:03:30,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:30,512 INFO L134 CoverageAnalysis]: Checked inductivity of 575 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 573 trivial. 0 not checked. [2021-12-18 11:03:30,513 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:30,513 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1920393284] [2021-12-18 11:03:30,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1920393284] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:30,513 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:30,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:30,514 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580153649] [2021-12-18 11:03:30,514 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:30,515 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:30,515 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:30,515 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:30,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:30,516 INFO L87 Difference]: Start difference. First operand 26677 states and 36785 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 11:03:34,417 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:34,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:34,933 INFO L93 Difference]: Finished difference Result 26803 states and 37088 transitions. [2021-12-18 11:03:34,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:34,936 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) Word has length 191 [2021-12-18 11:03:34,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:35,084 INFO L225 Difference]: With dead ends: 26803 [2021-12-18 11:03:35,085 INFO L226 Difference]: Without dead ends: 26801 [2021-12-18 11:03:35,107 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:35,108 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 566 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1740 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 566 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.9s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:35,108 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1740 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [566 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.9s Time] [2021-12-18 11:03:35,138 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26801 states. [2021-12-18 11:03:36,203 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26801 to 26681. [2021-12-18 11:03:36,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26681 states, 19356 states have (on average 1.2333643314734448) internal successors, (23873), 19710 states have internal predecessors, (23873), 5787 states have call successors, (5787), 1538 states have call predecessors, (5787), 1535 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:36,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26681 states to 26681 states and 36788 transitions. [2021-12-18 11:03:36,380 INFO L78 Accepts]: Start accepts. Automaton has 26681 states and 36788 transitions. Word has length 191 [2021-12-18 11:03:36,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:36,381 INFO L470 AbstractCegarLoop]: Abstraction has 26681 states and 36788 transitions. [2021-12-18 11:03:36,381 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-18 11:03:36,381 INFO L276 IsEmpty]: Start isEmpty. Operand 26681 states and 36788 transitions. [2021-12-18 11:03:36,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2021-12-18 11:03:36,388 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:36,389 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 3, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:36,389 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-12-18 11:03:36,389 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:36,390 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:36,390 INFO L85 PathProgramCache]: Analyzing trace with hash -2110594058, now seen corresponding path program 1 times [2021-12-18 11:03:36,390 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:36,390 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401923668] [2021-12-18 11:03:36,390 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:36,391 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:36,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:36,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:36,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:36,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:36,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,611 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:36,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:36,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,642 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:36,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,886 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:36,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:36,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:36,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:36,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:36,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:36,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,961 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:36,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:36,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,976 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:36,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:36,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:36,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:36,997 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:36,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:37,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:03:37,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:37,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:03:37,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:37,019 INFO L134 CoverageAnalysis]: Checked inductivity of 581 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 577 trivial. 0 not checked. [2021-12-18 11:03:37,019 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:37,019 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401923668] [2021-12-18 11:03:37,019 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401923668] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:37,020 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:37,020 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:37,020 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1254558559] [2021-12-18 11:03:37,020 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:37,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:37,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:37,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:37,022 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:37,022 INFO L87 Difference]: Start difference. First operand 26681 states and 36788 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 11:03:40,763 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:41,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:41,336 INFO L93 Difference]: Finished difference Result 26807 states and 37091 transitions. [2021-12-18 11:03:41,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:41,339 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) Word has length 196 [2021-12-18 11:03:41,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:41,449 INFO L225 Difference]: With dead ends: 26807 [2021-12-18 11:03:41,449 INFO L226 Difference]: Without dead ends: 26805 [2021-12-18 11:03:41,466 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:41,468 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 565 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 565 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:41,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [565 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 11:03:41,496 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26805 states. [2021-12-18 11:03:42,466 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26805 to 26685. [2021-12-18 11:03:42,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26685 states, 19359 states have (on average 1.2333281677772612) internal successors, (23876), 19713 states have internal predecessors, (23876), 5787 states have call successors, (5787), 1539 states have call predecessors, (5787), 1536 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:42,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26685 states to 26685 states and 36791 transitions. [2021-12-18 11:03:42,587 INFO L78 Accepts]: Start accepts. Automaton has 26685 states and 36791 transitions. Word has length 196 [2021-12-18 11:03:42,588 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:42,588 INFO L470 AbstractCegarLoop]: Abstraction has 26685 states and 36791 transitions. [2021-12-18 11:03:42,588 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (23), 4 states have call predecessors, (23), 1 states have return successors, (21), 2 states have call predecessors, (21), 2 states have call successors, (21) [2021-12-18 11:03:42,588 INFO L276 IsEmpty]: Start isEmpty. Operand 26685 states and 36791 transitions. [2021-12-18 11:03:42,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2021-12-18 11:03:42,591 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:42,591 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 4, 4, 4, 4, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:42,591 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-12-18 11:03:42,592 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:42,592 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:42,592 INFO L85 PathProgramCache]: Analyzing trace with hash -1806834886, now seen corresponding path program 1 times [2021-12-18 11:03:42,592 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:42,593 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [811099517] [2021-12-18 11:03:42,593 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:42,593 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:42,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:42,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:42,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:42,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:42,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:42,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:42,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:42,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,874 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,879 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:42,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:42,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,902 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:42,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:42,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:42,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:42,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:42,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:42,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:42,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:42,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:42,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:03:42,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:03:42,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:03:42,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:42,996 INFO L134 CoverageAnalysis]: Checked inductivity of 591 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 585 trivial. 0 not checked. [2021-12-18 11:03:42,996 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:42,996 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [811099517] [2021-12-18 11:03:42,996 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [811099517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:42,997 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:42,997 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:42,997 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1799276103] [2021-12-18 11:03:42,997 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:42,998 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:42,998 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:42,999 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:42,999 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:42,999 INFO L87 Difference]: Start difference. First operand 26685 states and 36791 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 11:03:46,794 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:47,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:47,338 INFO L93 Difference]: Finished difference Result 26811 states and 37094 transitions. [2021-12-18 11:03:47,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:47,340 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) Word has length 201 [2021-12-18 11:03:47,341 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:47,447 INFO L225 Difference]: With dead ends: 26811 [2021-12-18 11:03:47,447 INFO L226 Difference]: Without dead ends: 26809 [2021-12-18 11:03:47,465 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 65 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:47,466 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 564 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1738 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 564 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:47,466 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1738 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [564 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 11:03:47,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26809 states. [2021-12-18 11:03:48,382 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26809 to 26689. [2021-12-18 11:03:48,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26689 states, 19362 states have (on average 1.233292015287677) internal successors, (23879), 19716 states have internal predecessors, (23879), 5787 states have call successors, (5787), 1540 states have call predecessors, (5787), 1537 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:48,504 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26689 states to 26689 states and 36794 transitions. [2021-12-18 11:03:48,507 INFO L78 Accepts]: Start accepts. Automaton has 26689 states and 36794 transitions. Word has length 201 [2021-12-18 11:03:48,507 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:48,507 INFO L470 AbstractCegarLoop]: Abstraction has 26689 states and 36794 transitions. [2021-12-18 11:03:48,508 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (24), 4 states have call predecessors, (24), 1 states have return successors, (22), 2 states have call predecessors, (22), 2 states have call successors, (22) [2021-12-18 11:03:48,508 INFO L276 IsEmpty]: Start isEmpty. Operand 26689 states and 36794 transitions. [2021-12-18 11:03:48,510 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2021-12-18 11:03:48,510 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:48,510 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 5, 4, 4, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:48,510 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-12-18 11:03:48,511 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:48,511 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:48,511 INFO L85 PathProgramCache]: Analyzing trace with hash 1516299830, now seen corresponding path program 1 times [2021-12-18 11:03:48,511 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:48,511 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752453965] [2021-12-18 11:03:48,512 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:48,512 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:48,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,714 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:48,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:48,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:48,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,918 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:48,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,932 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:48,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:48,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,960 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:48,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,969 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:48,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:48,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,989 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:48,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:48,999 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:49,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,004 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:49,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:49,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,019 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:49,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:49,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:49,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:49,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,047 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:49,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:49,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:49,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:03:49,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:03:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,086 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:03:49,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:03:49,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:49,101 INFO L134 CoverageAnalysis]: Checked inductivity of 605 backedges. 8 proven. 0 refuted. 0 times theorem prover too weak. 597 trivial. 0 not checked. [2021-12-18 11:03:49,101 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:49,101 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752453965] [2021-12-18 11:03:49,102 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752453965] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:49,102 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:49,102 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:49,102 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980579937] [2021-12-18 11:03:49,102 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:49,103 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:49,103 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:49,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:49,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:49,104 INFO L87 Difference]: Start difference. First operand 26689 states and 36794 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 11:03:52,968 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:53,544 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:53,544 INFO L93 Difference]: Finished difference Result 26815 states and 37097 transitions. [2021-12-18 11:03:53,546 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:53,547 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) Word has length 206 [2021-12-18 11:03:53,547 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:53,674 INFO L225 Difference]: With dead ends: 26815 [2021-12-18 11:03:53,674 INFO L226 Difference]: Without dead ends: 26813 [2021-12-18 11:03:53,695 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:53,696 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 563 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1737 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 563 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.8s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:53,697 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1737 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [563 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.8s Time] [2021-12-18 11:03:53,729 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26813 states. [2021-12-18 11:03:54,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26813 to 26693. [2021-12-18 11:03:54,655 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26693 states, 19365 states have (on average 1.2332558739994837) internal successors, (23882), 19719 states have internal predecessors, (23882), 5787 states have call successors, (5787), 1541 states have call predecessors, (5787), 1538 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:03:54,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26693 states to 26693 states and 36797 transitions. [2021-12-18 11:03:54,773 INFO L78 Accepts]: Start accepts. Automaton has 26693 states and 36797 transitions. Word has length 206 [2021-12-18 11:03:54,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:03:54,774 INFO L470 AbstractCegarLoop]: Abstraction has 26693 states and 36797 transitions. [2021-12-18 11:03:54,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (25), 4 states have call predecessors, (25), 1 states have return successors, (23), 2 states have call predecessors, (23), 2 states have call successors, (23) [2021-12-18 11:03:54,774 INFO L276 IsEmpty]: Start isEmpty. Operand 26693 states and 36797 transitions. [2021-12-18 11:03:54,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 212 [2021-12-18 11:03:54,777 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:03:54,777 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 6, 5, 5, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:03:54,777 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-12-18 11:03:54,777 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:03:54,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:03:54,778 INFO L85 PathProgramCache]: Analyzing trace with hash -2147387270, now seen corresponding path program 1 times [2021-12-18 11:03:54,778 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:03:54,778 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [87612057] [2021-12-18 11:03:54,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:03:54,778 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:03:54,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:03:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:54,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:03:54,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:54,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:03:54,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,979 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:54,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,985 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:03:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:54,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:03:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,016 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:03:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,032 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:03:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,041 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,048 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:03:55,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,058 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:03:55,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:03:55,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:03:55,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:03:55,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:03:55,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,123 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:03:55,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:03:55,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:03:55,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:03:55,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:03:55,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:03:55,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:03:55,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:03:55,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:03:55,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:03:55,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,200 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 11:03:55,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:03:55,208 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 10 proven. 0 refuted. 0 times theorem prover too weak. 613 trivial. 0 not checked. [2021-12-18 11:03:55,208 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:03:55,208 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [87612057] [2021-12-18 11:03:55,209 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [87612057] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:03:55,209 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:03:55,209 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:03:55,209 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [502117482] [2021-12-18 11:03:55,209 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:03:55,211 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:03:55,211 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:03:55,211 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:03:55,211 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:03:55,212 INFO L87 Difference]: Start difference. First operand 26693 states and 36797 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:03:59,168 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:03:59,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:03:59,730 INFO L93 Difference]: Finished difference Result 26819 states and 37100 transitions. [2021-12-18 11:03:59,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:03:59,732 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) Word has length 211 [2021-12-18 11:03:59,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:03:59,851 INFO L225 Difference]: With dead ends: 26819 [2021-12-18 11:03:59,852 INFO L226 Difference]: Without dead ends: 26817 [2021-12-18 11:03:59,875 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 69 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:03:59,876 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 562 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 562 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:03:59,876 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [562 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 11:03:59,903 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26817 states. [2021-12-18 11:04:00,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26817 to 26697. [2021-12-18 11:04:00,915 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26697 states, 19368 states have (on average 1.2332197439074764) internal successors, (23885), 19722 states have internal predecessors, (23885), 5787 states have call successors, (5787), 1542 states have call predecessors, (5787), 1539 states have return successors, (7128), 5596 states have call predecessors, (7128), 5784 states have call successors, (7128) [2021-12-18 11:04:01,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26697 states to 26697 states and 36800 transitions. [2021-12-18 11:04:01,009 INFO L78 Accepts]: Start accepts. Automaton has 26697 states and 36800 transitions. Word has length 211 [2021-12-18 11:04:01,009 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:01,010 INFO L470 AbstractCegarLoop]: Abstraction has 26697 states and 36800 transitions. [2021-12-18 11:04:01,010 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (26), 4 states have call predecessors, (26), 1 states have return successors, (24), 2 states have call predecessors, (24), 2 states have call successors, (24) [2021-12-18 11:04:01,010 INFO L276 IsEmpty]: Start isEmpty. Operand 26697 states and 36800 transitions. [2021-12-18 11:04:01,012 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2021-12-18 11:04:01,012 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:01,012 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 7, 6, 6, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:01,012 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-12-18 11:04:01,013 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:01,013 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:01,013 INFO L85 PathProgramCache]: Analyzing trace with hash 1980942454, now seen corresponding path program 1 times [2021-12-18 11:04:01,013 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:01,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1995052250] [2021-12-18 11:04:01,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:01,014 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:01,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:01,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:01,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:01,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:01,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:01,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:01,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,347 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:01,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,358 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,366 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:01,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:01,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,393 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,399 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:01,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,406 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:01,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,412 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:01,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,418 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:01,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:01,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:01,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,434 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:01,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:04:01,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:04:01,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:01,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:04:01,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:04:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 11:04:01,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 11:04:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:01,477 INFO L134 CoverageAnalysis]: Checked inductivity of 645 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 633 trivial. 0 not checked. [2021-12-18 11:04:01,477 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:01,477 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1995052250] [2021-12-18 11:04:01,477 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1995052250] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:01,477 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:01,478 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:01,478 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612823379] [2021-12-18 11:04:01,478 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:01,478 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:01,479 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:01,479 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:01,479 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:01,479 INFO L87 Difference]: Start difference. First operand 26697 states and 36800 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:04:05,256 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:05,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:05,873 INFO L93 Difference]: Finished difference Result 28019 states and 38247 transitions. [2021-12-18 11:04:05,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-12-18 11:04:05,875 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) Word has length 216 [2021-12-18 11:04:05,876 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:05,995 INFO L225 Difference]: With dead ends: 28019 [2021-12-18 11:04:05,995 INFO L226 Difference]: Without dead ends: 28017 [2021-12-18 11:04:06,018 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 79 GetRequests, 71 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:06,018 INFO L933 BasicCegarLoop]: 1769 mSDtfsCounter, 1675 mSDsluCounter, 3896 mSDsCounter, 0 mSdLazyCounter, 1338 mSolverCounterSat, 550 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1859 SdHoareTripleChecker+Valid, 5665 SdHoareTripleChecker+Invalid, 1889 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 550 IncrementalHoareTripleChecker+Valid, 1338 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:06,019 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1859 Valid, 5665 Invalid, 1889 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [550 Valid, 1338 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 11:04:06,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28017 states. [2021-12-18 11:04:06,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28017 to 27897. [2021-12-18 11:04:06,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27897 states, 20107 states have (on average 1.2258417466553937) internal successors, (24648), 20485 states have internal predecessors, (24648), 5979 states have call successors, (5979), 1811 states have call predecessors, (5979), 1808 states have return successors, (7320), 5788 states have call predecessors, (7320), 5976 states have call successors, (7320) [2021-12-18 11:04:07,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27897 states to 27897 states and 37947 transitions. [2021-12-18 11:04:07,040 INFO L78 Accepts]: Start accepts. Automaton has 27897 states and 37947 transitions. Word has length 216 [2021-12-18 11:04:07,041 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:07,041 INFO L470 AbstractCegarLoop]: Abstraction has 27897 states and 37947 transitions. [2021-12-18 11:04:07,041 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (27), 4 states have call predecessors, (27), 1 states have return successors, (25), 2 states have call predecessors, (25), 2 states have call successors, (25) [2021-12-18 11:04:07,042 INFO L276 IsEmpty]: Start isEmpty. Operand 27897 states and 37947 transitions. [2021-12-18 11:04:07,046 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 222 [2021-12-18 11:04:07,046 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:07,046 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 8, 7, 7, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:07,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-12-18 11:04:07,047 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:07,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:07,047 INFO L85 PathProgramCache]: Analyzing trace with hash 530394554, now seen corresponding path program 1 times [2021-12-18 11:04:07,048 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:07,048 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1418999412] [2021-12-18 11:04:07,048 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:07,048 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:07,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:07,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:07,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:07,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,322 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:07,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:07,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:07,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:07,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:07,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,384 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:07,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,391 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:07,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:07,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:07,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:07,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:07,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:07,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:07,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,447 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:07,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:07,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:04:07,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:04:07,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,474 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:07,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:04:07,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:04:07,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 11:04:07,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 11:04:07,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 11:04:07,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:07,509 INFO L134 CoverageAnalysis]: Checked inductivity of 671 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 657 trivial. 0 not checked. [2021-12-18 11:04:07,510 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:07,510 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1418999412] [2021-12-18 11:04:07,510 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1418999412] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:07,510 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:07,510 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:07,511 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1874237792] [2021-12-18 11:04:07,511 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:07,511 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:07,511 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:07,512 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:07,512 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:07,512 INFO L87 Difference]: Start difference. First operand 27897 states and 37947 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:04:11,183 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:11,852 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:11,852 INFO L93 Difference]: Finished difference Result 28023 states and 38250 transitions. [2021-12-18 11:04:11,854 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:04:11,854 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) Word has length 221 [2021-12-18 11:04:11,855 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:11,942 INFO L225 Difference]: With dead ends: 28023 [2021-12-18 11:04:11,942 INFO L226 Difference]: Without dead ends: 28021 [2021-12-18 11:04:11,955 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:11,957 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 560 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1734 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 560 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:11,958 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1734 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [560 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 11:04:11,979 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28021 states. [2021-12-18 11:04:12,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28021 to 27901. [2021-12-18 11:04:12,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27901 states, 20110 states have (on average 1.2258080556936848) internal successors, (24651), 20488 states have internal predecessors, (24651), 5979 states have call successors, (5979), 1812 states have call predecessors, (5979), 1809 states have return successors, (7320), 5788 states have call predecessors, (7320), 5976 states have call successors, (7320) [2021-12-18 11:04:13,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27901 states to 27901 states and 37950 transitions. [2021-12-18 11:04:13,024 INFO L78 Accepts]: Start accepts. Automaton has 27901 states and 37950 transitions. Word has length 221 [2021-12-18 11:04:13,024 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:13,025 INFO L470 AbstractCegarLoop]: Abstraction has 27901 states and 37950 transitions. [2021-12-18 11:04:13,025 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (28), 4 states have call predecessors, (28), 1 states have return successors, (26), 2 states have call predecessors, (26), 2 states have call successors, (26) [2021-12-18 11:04:13,025 INFO L276 IsEmpty]: Start isEmpty. Operand 27901 states and 37950 transitions. [2021-12-18 11:04:13,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2021-12-18 11:04:13,029 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:13,029 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 9, 8, 8, 4, 4, 4, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:13,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-12-18 11:04:13,029 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:13,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:13,030 INFO L85 PathProgramCache]: Analyzing trace with hash -1443853642, now seen corresponding path program 1 times [2021-12-18 11:04:13,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:13,030 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [513578658] [2021-12-18 11:04:13,031 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:13,031 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:13,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:13,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:13,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,200 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:13,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:13,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:13,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:13,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:13,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,268 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:13,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:13,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:13,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:13,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,314 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:13,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:13,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:13,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:13,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,345 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:13,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:13,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-18 11:04:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,371 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 182 [2021-12-18 11:04:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:13,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,383 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2021-12-18 11:04:13,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-12-18 11:04:13,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 202 [2021-12-18 11:04:13,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2021-12-18 11:04:13,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-18 11:04:13,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:04:13,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:13,426 INFO L134 CoverageAnalysis]: Checked inductivity of 701 backedges. 16 proven. 0 refuted. 0 times theorem prover too weak. 685 trivial. 0 not checked. [2021-12-18 11:04:13,426 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:13,426 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [513578658] [2021-12-18 11:04:13,426 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [513578658] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:13,427 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:13,427 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:13,427 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [680400402] [2021-12-18 11:04:13,427 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:13,428 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:13,428 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:13,428 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:13,428 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:13,428 INFO L87 Difference]: Start difference. First operand 27901 states and 37950 transitions. Second operand has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 11:04:17,277 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:17,825 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:17,826 INFO L93 Difference]: Finished difference Result 28027 states and 38253 transitions. [2021-12-18 11:04:17,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:04:17,828 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) Word has length 226 [2021-12-18 11:04:17,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:17,929 INFO L225 Difference]: With dead ends: 28027 [2021-12-18 11:04:17,929 INFO L226 Difference]: Without dead ends: 28025 [2021-12-18 11:04:17,947 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:17,947 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1804 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 559 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2007 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1733 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 559 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:17,948 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2007 Valid, 5469 Invalid, 1733 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [559 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 11:04:17,972 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28025 states. [2021-12-18 11:04:18,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28025 to 27905. [2021-12-18 11:04:18,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27905 states, 20113 states have (on average 1.225774374782479) internal successors, (24654), 20491 states have internal predecessors, (24654), 5979 states have call successors, (5979), 1813 states have call predecessors, (5979), 1810 states have return successors, (7320), 5788 states have call predecessors, (7320), 5976 states have call successors, (7320) [2021-12-18 11:04:19,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27905 states to 27905 states and 37953 transitions. [2021-12-18 11:04:19,257 INFO L78 Accepts]: Start accepts. Automaton has 27905 states and 37953 transitions. Word has length 226 [2021-12-18 11:04:19,258 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:19,258 INFO L470 AbstractCegarLoop]: Abstraction has 27905 states and 37953 transitions. [2021-12-18 11:04:19,258 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 9.0) internal successors, (54), 4 states have internal predecessors, (54), 2 states have call successors, (29), 4 states have call predecessors, (29), 1 states have return successors, (27), 2 states have call predecessors, (27), 2 states have call successors, (27) [2021-12-18 11:04:19,258 INFO L276 IsEmpty]: Start isEmpty. Operand 27905 states and 37953 transitions. [2021-12-18 11:04:19,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 250 [2021-12-18 11:04:19,263 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:19,263 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 10, 10, 10, 10, 10, 10, 10, 9, 9, 6, 6, 6, 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] [2021-12-18 11:04:19,264 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-12-18 11:04:19,264 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:19,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:19,265 INFO L85 PathProgramCache]: Analyzing trace with hash 2046317439, now seen corresponding path program 1 times [2021-12-18 11:04:19,265 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:19,265 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [915206760] [2021-12-18 11:04:19,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:19,265 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:19,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:19,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:19,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:19,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,456 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:19,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,471 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,477 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:19,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:19,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:19,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,529 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:19,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:19,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:19,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:19,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:19,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:19,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,606 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:19,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:19,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,622 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:19,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:19,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:19,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:19,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 11:04:19,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:19,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 11:04:19,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,676 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 11:04:19,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 11:04:19,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 11:04:19,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 11:04:19,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:04:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 11:04:19,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 11:04:19,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 11:04:19,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:19,733 INFO L134 CoverageAnalysis]: Checked inductivity of 770 backedges. 18 proven. 0 refuted. 0 times theorem prover too weak. 752 trivial. 0 not checked. [2021-12-18 11:04:19,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:19,734 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [915206760] [2021-12-18 11:04:19,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [915206760] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:19,734 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:19,734 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:19,734 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [767116242] [2021-12-18 11:04:19,735 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:19,735 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:19,735 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:19,736 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:19,736 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:19,736 INFO L87 Difference]: Start difference. First operand 27905 states and 37953 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 11:04:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:22,996 INFO L93 Difference]: Finished difference Result 28031 states and 38256 transitions. [2021-12-18 11:04:22,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:04:22,998 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) Word has length 249 [2021-12-18 11:04:22,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:23,076 INFO L225 Difference]: With dead ends: 28031 [2021-12-18 11:04:23,077 INFO L226 Difference]: Without dead ends: 28029 [2021-12-18 11:04:23,091 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 89 GetRequests, 81 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:23,091 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1795 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1174 mSolverCounterSat, 558 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1732 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1174 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:23,091 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1996 Valid, 5469 Invalid, 1732 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1174 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-18 11:04:23,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28029 states. [2021-12-18 11:04:23,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28029 to 27909. [2021-12-18 11:04:24,024 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27909 states, 20116 states have (on average 1.2257407039172799) internal successors, (24657), 20494 states have internal predecessors, (24657), 5979 states have call successors, (5979), 1814 states have call predecessors, (5979), 1811 states have return successors, (7320), 5788 states have call predecessors, (7320), 5976 states have call successors, (7320) [2021-12-18 11:04:24,105 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27909 states to 27909 states and 37956 transitions. [2021-12-18 11:04:24,107 INFO L78 Accepts]: Start accepts. Automaton has 27909 states and 37956 transitions. Word has length 249 [2021-12-18 11:04:24,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:24,108 INFO L470 AbstractCegarLoop]: Abstraction has 27909 states and 37956 transitions. [2021-12-18 11:04:24,108 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (32), 4 states have call predecessors, (32), 1 states have return successors, (30), 2 states have call predecessors, (30), 2 states have call successors, (30) [2021-12-18 11:04:24,108 INFO L276 IsEmpty]: Start isEmpty. Operand 27909 states and 37956 transitions. [2021-12-18 11:04:24,112 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2021-12-18 11:04:24,112 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:24,112 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 10, 10, 10, 10, 10, 10, 5, 5, 5, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:24,113 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-12-18 11:04:24,113 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:24,113 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:24,113 INFO L85 PathProgramCache]: Analyzing trace with hash 1209759793, now seen corresponding path program 1 times [2021-12-18 11:04:24,113 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:24,114 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1105173670] [2021-12-18 11:04:24,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:24,114 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:24,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:24,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:24,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:24,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,238 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:24,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:24,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:24,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:24,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:24,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:24,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:24,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:24,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:24,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:24,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 11:04:24,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:04:24,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:24,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,339 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:04:24,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:24,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-18 11:04:24,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-18 11:04:24,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,359 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 219 [2021-12-18 11:04:24,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:24,363 INFO L134 CoverageAnalysis]: Checked inductivity of 637 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 625 trivial. 0 not checked. [2021-12-18 11:04:24,363 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:24,363 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1105173670] [2021-12-18 11:04:24,363 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1105173670] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:24,363 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:24,364 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:04:24,364 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631455512] [2021-12-18 11:04:24,364 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:24,365 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:04:24,365 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:24,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:04:24,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:04:24,366 INFO L87 Difference]: Start difference. First operand 27909 states and 37956 transitions. Second operand has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 11:04:28,564 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:29,955 INFO L93 Difference]: Finished difference Result 67550 states and 92249 transitions. [2021-12-18 11:04:29,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:04:29,957 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) Word has length 229 [2021-12-18 11:04:29,958 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:30,114 INFO L225 Difference]: With dead ends: 67550 [2021-12-18 11:04:30,115 INFO L226 Difference]: Without dead ends: 39735 [2021-12-18 11:04:30,200 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:04:30,200 INFO L933 BasicCegarLoop]: 3323 mSDtfsCounter, 1714 mSDsluCounter, 3002 mSDsCounter, 0 mSdLazyCounter, 1126 mSolverCounterSat, 596 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1989 SdHoareTripleChecker+Valid, 6325 SdHoareTripleChecker+Invalid, 1723 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 596 IncrementalHoareTripleChecker+Valid, 1126 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 4.1s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:30,200 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1989 Valid, 6325 Invalid, 1723 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [596 Valid, 1126 Invalid, 1 Unknown, 0 Unchecked, 4.1s Time] [2021-12-18 11:04:30,235 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39735 states. [2021-12-18 11:04:31,648 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39735 to 39503. [2021-12-18 11:04:31,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39503 states, 28586 states have (on average 1.2262995872105227) internal successors, (35055), 29114 states have internal predecessors, (35055), 8361 states have call successors, (8361), 2554 states have call predecessors, (8361), 2553 states have return successors, (10346), 8102 states have call predecessors, (10346), 8358 states have call successors, (10346) [2021-12-18 11:04:31,846 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39503 states to 39503 states and 53762 transitions. [2021-12-18 11:04:31,854 INFO L78 Accepts]: Start accepts. Automaton has 39503 states and 53762 transitions. Word has length 229 [2021-12-18 11:04:31,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:31,854 INFO L470 AbstractCegarLoop]: Abstraction has 39503 states and 53762 transitions. [2021-12-18 11:04:31,854 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 21.25) internal successors, (85), 3 states have internal predecessors, (85), 3 states have call successors, (27), 3 states have call predecessors, (27), 1 states have return successors, (23), 3 states have call predecessors, (23), 3 states have call successors, (23) [2021-12-18 11:04:31,854 INFO L276 IsEmpty]: Start isEmpty. Operand 39503 states and 53762 transitions. [2021-12-18 11:04:31,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 255 [2021-12-18 11:04:31,857 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:31,857 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 11, 10, 10, 10, 10, 10, 10, 10, 10, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:31,858 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-12-18 11:04:31,858 INFO L402 AbstractCegarLoop]: === Iteration 18 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:31,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:31,858 INFO L85 PathProgramCache]: Analyzing trace with hash 69822353, now seen corresponding path program 1 times [2021-12-18 11:04:31,859 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:31,859 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [308784182] [2021-12-18 11:04:31,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:31,859 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:31,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:32,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,293 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,300 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:32,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,331 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:32,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,343 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:32,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:32,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,363 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,368 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:32,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,376 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:32,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:32,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,400 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:32,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:32,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:32,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:32,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:32,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,432 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:32,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,446 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,453 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 11:04:32,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:32,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 11:04:32,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 11:04:32,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 11:04:32,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 11:04:32,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 11:04:32,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:04:32,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 11:04:32,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 11:04:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 11:04:32,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,516 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 11:04:32,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:32,525 INFO L134 CoverageAnalysis]: Checked inductivity of 808 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 788 trivial. 0 not checked. [2021-12-18 11:04:32,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:32,526 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [308784182] [2021-12-18 11:04:32,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [308784182] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:32,526 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:32,527 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:32,527 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [824870047] [2021-12-18 11:04:32,527 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:32,527 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:32,528 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:32,528 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:32,528 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:32,529 INFO L87 Difference]: Start difference. First operand 39503 states and 53762 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 11:04:36,536 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:37,281 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:37,281 INFO L93 Difference]: Finished difference Result 39669 states and 54161 transitions. [2021-12-18 11:04:37,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:04:37,283 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) Word has length 254 [2021-12-18 11:04:37,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:37,440 INFO L225 Difference]: With dead ends: 39669 [2021-12-18 11:04:37,440 INFO L226 Difference]: Without dead ends: 39665 [2021-12-18 11:04:37,469 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 91 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:37,469 INFO L933 BasicCegarLoop]: 1754 mSDtfsCounter, 1795 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1173 mSolverCounterSat, 557 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1996 SdHoareTripleChecker+Valid, 5469 SdHoareTripleChecker+Invalid, 1731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 557 IncrementalHoareTripleChecker+Valid, 1173 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:37,469 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1996 Valid, 5469 Invalid, 1731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [557 Valid, 1173 Invalid, 1 Unknown, 0 Unchecked, 3.6s Time] [2021-12-18 11:04:37,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39665 states. [2021-12-18 11:04:39,121 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39665 to 39505. [2021-12-18 11:04:39,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39505 states, 28588 states have (on average 1.2262487757100882) internal successors, (35056), 29115 states have internal predecessors, (35056), 8361 states have call successors, (8361), 2555 states have call predecessors, (8361), 2553 states have return successors, (10346), 8102 states have call predecessors, (10346), 8358 states have call successors, (10346) [2021-12-18 11:04:39,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39505 states to 39505 states and 53763 transitions. [2021-12-18 11:04:39,314 INFO L78 Accepts]: Start accepts. Automaton has 39505 states and 53763 transitions. Word has length 254 [2021-12-18 11:04:39,314 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:39,314 INFO L470 AbstractCegarLoop]: Abstraction has 39505 states and 53763 transitions. [2021-12-18 11:04:39,314 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (33), 4 states have call predecessors, (33), 1 states have return successors, (31), 2 states have call predecessors, (31), 2 states have call successors, (31) [2021-12-18 11:04:39,314 INFO L276 IsEmpty]: Start isEmpty. Operand 39505 states and 53763 transitions. [2021-12-18 11:04:39,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 260 [2021-12-18 11:04:39,317 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:39,317 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 12, 11, 11, 10, 10, 10, 10, 10, 10, 6, 6, 6, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:39,317 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-12-18 11:04:39,318 INFO L402 AbstractCegarLoop]: === Iteration 19 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:39,318 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:39,318 INFO L85 PathProgramCache]: Analyzing trace with hash 1884890751, now seen corresponding path program 1 times [2021-12-18 11:04:39,318 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:39,318 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2068397357] [2021-12-18 11:04:39,319 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:39,319 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:39,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,462 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:39,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,469 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:39,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,480 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,484 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:39,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,491 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,495 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,502 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,506 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:39,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,517 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:39,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:39,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:39,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,555 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:39,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,566 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:39,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,575 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:39,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:39,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,596 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-18 11:04:39,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:39,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2021-12-18 11:04:39,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2021-12-18 11:04:39,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:39,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2021-12-18 11:04:39,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,632 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2021-12-18 11:04:39,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2021-12-18 11:04:39,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2021-12-18 11:04:39,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2021-12-18 11:04:39,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2021-12-18 11:04:39,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 220 [2021-12-18 11:04:39,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 225 [2021-12-18 11:04:39,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,669 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 230 [2021-12-18 11:04:39,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 235 [2021-12-18 11:04:39,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:39,994 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 240 [2021-12-18 11:04:39,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:40,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-18 11:04:40,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:40,006 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 250 [2021-12-18 11:04:40,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:40,012 INFO L134 CoverageAnalysis]: Checked inductivity of 850 backedges. 22 proven. 0 refuted. 0 times theorem prover too weak. 828 trivial. 0 not checked. [2021-12-18 11:04:40,013 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:40,013 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2068397357] [2021-12-18 11:04:40,013 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2068397357] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:40,013 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:40,013 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-18 11:04:40,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [13809429] [2021-12-18 11:04:40,014 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:40,015 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-18 11:04:40,015 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:40,016 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-18 11:04:40,016 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-18 11:04:40,016 INFO L87 Difference]: Start difference. First operand 39505 states and 53763 transitions. Second operand has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:04:44,011 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:44,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:44,827 INFO L93 Difference]: Finished difference Result 39665 states and 54157 transitions. [2021-12-18 11:04:44,829 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-18 11:04:44,830 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 259 [2021-12-18 11:04:44,830 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:44,974 INFO L225 Difference]: With dead ends: 39665 [2021-12-18 11:04:44,975 INFO L226 Difference]: Without dead ends: 39318 [2021-12-18 11:04:44,996 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-18 11:04:44,997 INFO L933 BasicCegarLoop]: 1751 mSDtfsCounter, 1789 mSDsluCounter, 3715 mSDsCounter, 0 mSdLazyCounter, 1168 mSolverCounterSat, 556 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1990 SdHoareTripleChecker+Valid, 5466 SdHoareTripleChecker+Invalid, 1725 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 1168 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.7s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:44,997 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1990 Valid, 5466 Invalid, 1725 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 1168 Invalid, 1 Unknown, 0 Unchecked, 3.7s Time] [2021-12-18 11:04:45,028 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39318 states. [2021-12-18 11:04:46,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39318 to 39158. [2021-12-18 11:04:46,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 39158 states, 28370 states have (on average 1.225026436376454) internal successors, (34754), 28849 states have internal predecessors, (34754), 8247 states have call successors, (8247), 2539 states have call predecessors, (8247), 2539 states have return successors, (10235), 8037 states have call predecessors, (10235), 8247 states have call successors, (10235) [2021-12-18 11:04:46,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39158 states to 39158 states and 53236 transitions. [2021-12-18 11:04:46,913 INFO L78 Accepts]: Start accepts. Automaton has 39158 states and 53236 transitions. Word has length 259 [2021-12-18 11:04:46,914 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-18 11:04:46,914 INFO L470 AbstractCegarLoop]: Abstraction has 39158 states and 53236 transitions. [2021-12-18 11:04:46,914 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 10.5) internal successors, (63), 4 states have internal predecessors, (63), 2 states have call successors, (34), 4 states have call predecessors, (34), 1 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-18 11:04:46,915 INFO L276 IsEmpty]: Start isEmpty. Operand 39158 states and 53236 transitions. [2021-12-18 11:04:46,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 279 [2021-12-18 11:04:46,919 INFO L506 BasicCegarLoop]: Found error trace [2021-12-18 11:04:46,919 INFO L514 BasicCegarLoop]: trace histogram [17, 17, 10, 10, 10, 10, 10, 10, 7, 7, 7, 4, 4, 4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-18 11:04:46,920 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-12-18 11:04:46,920 INFO L402 AbstractCegarLoop]: === Iteration 20 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-18 11:04:46,920 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-18 11:04:46,920 INFO L85 PathProgramCache]: Analyzing trace with hash 213365508, now seen corresponding path program 1 times [2021-12-18 11:04:46,921 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-18 11:04:46,921 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244157656] [2021-12-18 11:04:46,921 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-18 11:04:46,921 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-18 11:04:46,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,099 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-18 11:04:47,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-18 11:04:47,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-18 11:04:47,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,127 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-18 11:04:47,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,139 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-18 11:04:47,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,150 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-18 11:04:47,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,161 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-18 11:04:47,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-18 11:04:47,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-18 11:04:47,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-18 11:04:47,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2021-12-18 11:04:47,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2021-12-18 11:04:47,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2021-12-18 11:04:47,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2021-12-18 11:04:47,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2021-12-18 11:04:47,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2021-12-18 11:04:47,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-18 11:04:47,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 175 [2021-12-18 11:04:47,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-18 11:04:47,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-18 11:04:47,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,294 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-18 11:04:47,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-18 11:04:47,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,304 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-18 11:04:47,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,311 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-18 11:04:47,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2021-12-18 11:04:47,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,326 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 248 [2021-12-18 11:04:47,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2021-12-18 11:04:47,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-18 11:04:47,338 INFO L134 CoverageAnalysis]: Checked inductivity of 796 backedges. 31 proven. 0 refuted. 0 times theorem prover too weak. 765 trivial. 0 not checked. [2021-12-18 11:04:47,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-18 11:04:47,339 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244157656] [2021-12-18 11:04:47,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244157656] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-18 11:04:47,339 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-18 11:04:47,339 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-18 11:04:47,339 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1095359481] [2021-12-18 11:04:47,339 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-18 11:04:47,340 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-18 11:04:47,340 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-18 11:04:47,340 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-18 11:04:47,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-18 11:04:47,341 INFO L87 Difference]: Start difference. First operand 39158 states and 53236 transitions. Second operand has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) [2021-12-18 11:04:52,143 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:54,282 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-18 11:04:55,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-18 11:04:55,590 INFO L93 Difference]: Finished difference Result 89841 states and 122524 transitions. [2021-12-18 11:04:55,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-18 11:04:55,593 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 27.75) internal successors, (111), 3 states have internal predecessors, (111), 3 states have call successors, (32), 3 states have call predecessors, (32), 1 states have return successors, (28), 3 states have call predecessors, (28), 3 states have call successors, (28) Word has length 278 [2021-12-18 11:04:55,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-18 11:04:55,807 INFO L225 Difference]: With dead ends: 89841 [2021-12-18 11:04:55,807 INFO L226 Difference]: Without dead ends: 50706 [2021-12-18 11:04:55,922 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 78 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-18 11:04:55,923 INFO L933 BasicCegarLoop]: 3292 mSDtfsCounter, 1692 mSDsluCounter, 2974 mSDsCounter, 0 mSdLazyCounter, 1069 mSolverCounterSat, 521 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1953 SdHoareTripleChecker+Valid, 6266 SdHoareTripleChecker+Invalid, 1592 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 521 IncrementalHoareTripleChecker+Valid, 1069 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.4s IncrementalHoareTripleChecker+Time [2021-12-18 11:04:55,924 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1953 Valid, 6266 Invalid, 1592 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [521 Valid, 1069 Invalid, 2 Unknown, 0 Unchecked, 6.4s Time] [2021-12-18 11:04:55,970 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50706 states.