./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-tun.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b 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-tun.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 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:38:43,006 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:38:43,034 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:38:43,092 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:38:43,094 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:38:43,098 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:38:43,101 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:38:43,107 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:38:43,109 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:38:43,110 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:38:43,111 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:38:43,114 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:38:43,114 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:38:43,120 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:38:43,122 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:38:43,124 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:38:43,128 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:38:43,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:38:43,132 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:38:43,137 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:38:43,139 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:38:43,143 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:38:43,144 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:38:43,146 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:38:43,149 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:38:43,152 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:38:43,152 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:38:43,154 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:38:43,154 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:38:43,155 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:38:43,155 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:38:43,156 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:38:43,158 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:38:43,159 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:38:43,160 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:38:43,160 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:38:43,161 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:38:43,161 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:38:43,162 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:38:43,162 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:38:43,163 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:38:43,164 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:38:43,203 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:38:43,204 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:38:43,204 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:38:43,204 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:38:43,205 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:38:43,206 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:38:43,206 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:38:43,206 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:38:43,207 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:38:43,207 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:38:43,208 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:38:43,208 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:38:43,208 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:38:43,208 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:38:43,209 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:38:43,209 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:38:43,209 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:38:43,209 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:38:43,209 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:38:43,210 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:38:43,210 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:38:43,210 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:38:43,210 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:38:43,210 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:38:43,211 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:38:43,211 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:38:43,211 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:38:43,212 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:38:43,213 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:38:43,213 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:38:43,213 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:38:43,213 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 97cecdf2f398250e9c44f19d8d35ed7fcac528daa12758af85552fae0658b596 [2021-12-14 18:38:43,459 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:38:43,480 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:38:43,483 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:38:43,484 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:38:43,485 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:38:43,486 INFO L432 ainManager$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-tun.cil.i [2021-12-14 18:38:43,540 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78dc3920a/e91a4c5874e7400db5a1852dfe762f4f/FLAG50b108161 [2021-12-14 18:38:44,393 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:38:44,394 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-tun.cil.i [2021-12-14 18:38:44,471 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78dc3920a/e91a4c5874e7400db5a1852dfe762f4f/FLAG50b108161 [2021-12-14 18:38:44,878 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/78dc3920a/e91a4c5874e7400db5a1852dfe762f4f [2021-12-14 18:38:44,880 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:38:44,882 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:38:44,883 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:38:44,883 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:38:44,887 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:38:44,888 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:44" (1/1) ... [2021-12-14 18:38:44,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@402fa48e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:44, skipping insertion in model container [2021-12-14 18:38:44,889 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:38:44" (1/1) ... [2021-12-14 18:38:44,895 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:38:45,046 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:38:48,896 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-tun.cil.i[428896,428909] [2021-12-14 18:38:48,898 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-tun.cil.i[429065,429078] [2021-12-14 18:38:48,899 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-tun.cil.i[429232,429245] [2021-12-14 18:38:48,900 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-tun.cil.i[429400,429413] [2021-12-14 18:38:48,935 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:38:49,003 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:38:49,452 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-tun.cil.i[428896,428909] [2021-12-14 18:38:49,454 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-tun.cil.i[429065,429078] [2021-12-14 18:38:49,454 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-tun.cil.i[429232,429245] [2021-12-14 18:38:49,455 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-tun.cil.i[429400,429413] [2021-12-14 18:38:49,464 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:38:49,716 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:38:49,717 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49 WrapperNode [2021-12-14 18:38:49,717 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:38:49,718 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:38:49,718 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:38:49,718 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:38:49,725 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:49,857 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,135 INFO L137 Inliner]: procedures = 614, calls = 2613, calls flagged for inlining = 322, calls inlined = 255, statements flattened = 7165 [2021-12-14 18:38:50,135 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:38:50,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:38:50,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:38:50,137 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:38:50,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,180 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,181 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,280 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,329 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:38:50,362 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:38:50,362 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:38:50,363 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:38:50,364 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (1/1) ... [2021-12-14 18:38:50,370 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:38:50,380 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:38:50,397 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) [2021-12-14 18:38:50,419 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 [2021-12-14 18:38:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get [2021-12-14 18:38:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get [2021-12-14 18:38:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-12-14 18:38:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-12-14 18:38:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:38:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:38:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:38:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-12-14 18:38:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure skb_get_hash [2021-12-14 18:38:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_get_hash [2021-12-14 18:38:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure tun_attach [2021-12-14 18:38:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_attach [2021-12-14 18:38:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure ns_capable [2021-12-14 18:38:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure ns_capable [2021-12-14 18:38:50,482 INFO L130 BoogieDeclarations]: Found specification of procedure crc32_le [2021-12-14 18:38:50,482 INFO L138 BoogieDeclarations]: Found implementation of procedure crc32_le [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:38:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure gid_valid [2021-12-14 18:38:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure gid_valid [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec_and_test [2021-12-14 18:38:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec_and_test [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-12-14 18:38:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:38:50,483 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:38:50,483 INFO L130 BoogieDeclarations]: Found specification of procedure sock_writeable [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_writeable [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure kmalloc [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure kmalloc [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure iov_length [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure iov_length [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure sock_put [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_put [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 18:38:50,484 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 18:38:50,484 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_iff [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_iff [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_bh_76 [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_bh_76 [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_detach [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_detach [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:38:50,485 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2021-12-14 18:38:50,485 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_tun_cleanup_15_2 [2021-12-14 18:38:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_all [2021-12-14 18:38:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_all [2021-12-14 18:38:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-12-14 18:38:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-12-14 18:38:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_purge [2021-12-14 18:38:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_purge [2021-12-14 18:38:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 18:38:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 18:38:50,486 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock [2021-12-14 18:38:50,486 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock [2021-12-14 18:38:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:38:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:38:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-14 18:38:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-14 18:38:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:38:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:38:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure read_pnet [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure read_pnet [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure tun_setup [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_setup [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure skb_set_transport_header [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_set_transport_header [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:38:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-14 18:38:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_find [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_find [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_uninit [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_uninit [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure synchronize_net [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure synchronize_net [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_toiovecend [2021-12-14 18:38:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_toiovecend [2021-12-14 18:38:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flags [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flags [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure __kuid_val [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure __kuid_val [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure uid_valid [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_valid [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:38:50,492 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:38:50,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_unlock [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_unlock [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rtnl_is_held [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rtnl_is_held [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure device_create_file [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure device_create_file [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure bitrev32 [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure bitrev32 [2021-12-14 18:38:50,493 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 18:38:50,493 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_get [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_get [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure ERR_PTR [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ERR_PTR [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure sk_attach_filter [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure sk_attach_filter [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure module_put [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure module_put [2021-12-14 18:38:50,494 INFO L130 BoogieDeclarations]: Found specification of procedure put_net [2021-12-14 18:38:50,494 INFO L138 BoogieDeclarations]: Found implementation of procedure put_net [2021-12-14 18:38:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:38:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure skb_copy_datagram_const_iovec [2021-12-14 18:38:50,495 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_copy_datagram_const_iovec [2021-12-14 18:38:50,495 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure tun_get_user [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_get_user [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure kfree_skb [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree_skb [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure __tun_chr_ioctl [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure __tun_chr_ioctl [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:38:50,499 INFO L130 BoogieDeclarations]: Found specification of procedure tun_flow_delete [2021-12-14 18:38:50,499 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_flow_delete [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure sock_rps_reset_flow_hash [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure sock_rps_reset_flow_hash [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure tun_queue_purge [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_queue_purge [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure tun_hashfn [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_hashfn [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 18:38:50,500 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_lock_held [2021-12-14 18:38:50,500 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_lock_held [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_bh_75 [2021-12-14 18:38:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_bh_75 [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 18:38:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure tun_enable_queue [2021-12-14 18:38:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_enable_queue [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure security_tun_dev_free_security [2021-12-14 18:38:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure security_tun_dev_free_security [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure hold_net [2021-12-14 18:38:50,501 INFO L138 BoogieDeclarations]: Found implementation of procedure hold_net [2021-12-14 18:38:50,501 INFO L130 BoogieDeclarations]: Found specification of procedure tun_set_real_num_queues [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_set_real_num_queues [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure uid_eq [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure uid_eq [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_link_unregister [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_link_unregister [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure tun_do_read [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_do_read [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-14 18:38:50,502 INFO L130 BoogieDeclarations]: Found specification of procedure __kgid_val [2021-12-14 18:38:50,502 INFO L138 BoogieDeclarations]: Found implementation of procedure __kgid_val [2021-12-14 18:38:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 18:38:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 18:38:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure is_multicast_ether_addr [2021-12-14 18:38:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure is_multicast_ether_addr [2021-12-14 18:38:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_inc [2021-12-14 18:38:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_inc [2021-12-14 18:38:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-12-14 18:38:50,503 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-12-14 18:38:50,503 INFO L130 BoogieDeclarations]: Found specification of procedure rtnl_lock [2021-12-14 18:38:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure rtnl_lock [2021-12-14 18:38:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 18:38:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 18:38:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:38:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:38:50,504 INFO L130 BoogieDeclarations]: Found specification of procedure tun_detach_filter [2021-12-14 18:38:50,504 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_detach_filter [2021-12-14 18:38:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy_fromiovecend [2021-12-14 18:38:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure memcpy_fromiovecend [2021-12-14 18:38:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure round_jiffies_up [2021-12-14 18:38:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure round_jiffies_up [2021-12-14 18:38:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:38:50,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:38:50,505 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_read_unlock [2021-12-14 18:38:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_read_unlock [2021-12-14 18:38:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure tun_put [2021-12-14 18:38:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure tun_put [2021-12-14 18:38:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:38:50,506 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:38:50,506 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:38:51,410 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:38:51,412 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:38:51,895 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:38:54,956 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:38:55,006 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:38:55,023 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:38:55,023 INFO L301 CfgBuilder]: Removed 20 assume(true) statements. [2021-12-14 18:38:55,028 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:55 BoogieIcfgContainer [2021-12-14 18:38:55,028 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:38:55,030 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:38:55,030 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:38:55,035 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:38:55,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:38:44" (1/3) ... [2021-12-14 18:38:55,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b61fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:55, skipping insertion in model container [2021-12-14 18:38:55,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:38:49" (2/3) ... [2021-12-14 18:38:55,037 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b61fab1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:38:55, skipping insertion in model container [2021-12-14 18:38:55,037 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:38:55" (3/3) ... [2021-12-14 18:38:55,038 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-tun.cil.i [2021-12-14 18:38:55,043 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:38:55,043 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-14 18:38:55,090 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:38:55,096 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 [2021-12-14 18:38:55,097 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-14 18:38:55,158 INFO L276 IsEmpty]: Start isEmpty. Operand has 2235 states, 1646 states have (on average 1.3578371810449574) internal successors, (2235), 1682 states have internal predecessors, (2235), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) [2021-12-14 18:38:55,178 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 328 [2021-12-14 18:38:55,178 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:38:55,179 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:38:55,180 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)] === [2021-12-14 18:38:55,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:38:55,185 INFO L85 PathProgramCache]: Analyzing trace with hash 1109704787, now seen corresponding path program 1 times [2021-12-14 18:38:55,192 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:38:55,193 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [122158618] [2021-12-14 18:38:55,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:38:55,194 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:38:55,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,838 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:38:55,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:55,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:38:55,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:55,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:38:55,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,966 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:55,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:55,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:38:55,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,011 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:38:56,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,052 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:38:56,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,072 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:38:56,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,083 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:38:56,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,103 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:38:56,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:38:56,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:38:56,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:38:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,182 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:38:56,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:38:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:38:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:38:56,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,259 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:38:56,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:38:56,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,298 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,306 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:38:56,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:38:56,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,425 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:38:56,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,445 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:38:56,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:38:56,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,483 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:38:56,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:38:56,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:38:56,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:38:56,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,561 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:38:56,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:38:56,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 317 [2021-12-14 18:38:56,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:38:56,606 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2021-12-14 18:38:56,606 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:38:56,607 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [122158618] [2021-12-14 18:38:56,607 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [122158618] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:38:56,607 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:38:56,608 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:38:56,609 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1740861034] [2021-12-14 18:38:56,610 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:38:56,615 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:38:56,615 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:38:56,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:38:56,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:38:56,650 INFO L87 Difference]: Start difference. First operand has 2235 states, 1646 states have (on average 1.3578371810449574) internal successors, (2235), 1682 states have internal predecessors, (2235), 481 states have call successors, (481), 106 states have call predecessors, (481), 105 states have return successors, (474), 473 states have call predecessors, (474), 474 states have call successors, (474) 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 18:39:00,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:00,534 INFO L93 Difference]: Finished difference Result 6313 states and 9153 transitions. [2021-12-14 18:39:00,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:00,536 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) Word has length 327 [2021-12-14 18:39:00,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:00,575 INFO L225 Difference]: With dead ends: 6313 [2021-12-14 18:39:00,575 INFO L226 Difference]: Without dead ends: 4126 [2021-12-14 18:39:00,596 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 117 GetRequests, 114 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:00,599 INFO L933 BasicCegarLoop]: 3179 mSDtfsCounter, 3622 mSDsluCounter, 3554 mSDsCounter, 0 mSdLazyCounter, 1710 mSolverCounterSat, 1206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3998 SdHoareTripleChecker+Valid, 6733 SdHoareTripleChecker+Invalid, 2916 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1206 IncrementalHoareTripleChecker+Valid, 1710 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.4s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:00,602 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3998 Valid, 6733 Invalid, 2916 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1206 Valid, 1710 Invalid, 0 Unknown, 0 Unchecked, 3.4s Time] [2021-12-14 18:39:00,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4126 states. [2021-12-14 18:39:00,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4126 to 4110. [2021-12-14 18:39:00,846 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4110 states, 3019 states have (on average 1.3176548526001988) internal successors, (3978), 3089 states have internal predecessors, (3978), 882 states have call successors, (882), 207 states have call predecessors, (882), 206 states have return successors, (878), 876 states have call predecessors, (878), 878 states have call successors, (878) [2021-12-14 18:39:00,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4110 states to 4110 states and 5738 transitions. [2021-12-14 18:39:00,880 INFO L78 Accepts]: Start accepts. Automaton has 4110 states and 5738 transitions. Word has length 327 [2021-12-14 18:39:00,881 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:00,881 INFO L470 AbstractCegarLoop]: Abstraction has 4110 states and 5738 transitions. [2021-12-14 18:39:00,881 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, (32), 3 states have call predecessors, (32), 1 states have return successors, (30), 3 states have call predecessors, (30), 3 states have call successors, (30) [2021-12-14 18:39:00,882 INFO L276 IsEmpty]: Start isEmpty. Operand 4110 states and 5738 transitions. [2021-12-14 18:39:00,887 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2021-12-14 18:39:00,887 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:00,888 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:00,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:39:00,888 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)] === [2021-12-14 18:39:00,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:00,889 INFO L85 PathProgramCache]: Analyzing trace with hash 1988374258, now seen corresponding path program 1 times [2021-12-14 18:39:00,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:00,889 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [420998926] [2021-12-14 18:39:00,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:00,890 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:00,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:01,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:01,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,089 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:01,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:01,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:01,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:01,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:01,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:01,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:01,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:01,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,276 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:01,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:01,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:01,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,325 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,342 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,350 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:01,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,360 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:01,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,390 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:01,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,401 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,411 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:01,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:01,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,440 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:01,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,461 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,468 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:01,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,479 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:01,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,500 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:01,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,526 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:01,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,537 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:01,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:01,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,583 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:01,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:01,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:01,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:01,615 INFO L134 CoverageAnalysis]: Checked inductivity of 3240 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3240 trivial. 0 not checked. [2021-12-14 18:39:01,616 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:01,616 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [420998926] [2021-12-14 18:39:01,616 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [420998926] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:01,616 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:01,616 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:01,617 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [635702467] [2021-12-14 18:39:01,617 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:01,620 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:01,620 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:01,621 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:01,621 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:01,621 INFO L87 Difference]: Start difference. First operand 4110 states and 5738 transitions. Second operand has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-14 18:39:05,375 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:05,375 INFO L93 Difference]: Finished difference Result 12120 states and 16977 transitions. [2021-12-14 18:39:05,376 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:05,376 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) Word has length 326 [2021-12-14 18:39:05,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:05,439 INFO L225 Difference]: With dead ends: 12120 [2021-12-14 18:39:05,439 INFO L226 Difference]: Without dead ends: 8069 [2021-12-14 18:39:05,462 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 115 GetRequests, 112 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:05,463 INFO L933 BasicCegarLoop]: 3325 mSDtfsCounter, 3559 mSDsluCounter, 3666 mSDsCounter, 0 mSdLazyCounter, 1664 mSolverCounterSat, 1236 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3933 SdHoareTripleChecker+Valid, 6991 SdHoareTripleChecker+Invalid, 2900 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1236 IncrementalHoareTripleChecker+Valid, 1664 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:05,464 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3933 Valid, 6991 Invalid, 2900 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1236 Valid, 1664 Invalid, 0 Unknown, 0 Unchecked, 3.3s Time] [2021-12-14 18:39:05,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8069 states. [2021-12-14 18:39:05,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8069 to 8013. [2021-12-14 18:39:05,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8013 states, 5904 states have (on average 1.3199525745257452) internal successors, (7793), 6044 states have internal predecessors, (7793), 1699 states have call successors, (1699), 410 states have call predecessors, (1699), 407 states have return successors, (1711), 1682 states have call predecessors, (1711), 1695 states have call successors, (1711) [2021-12-14 18:39:05,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8013 states to 8013 states and 11203 transitions. [2021-12-14 18:39:05,853 INFO L78 Accepts]: Start accepts. Automaton has 8013 states and 11203 transitions. Word has length 326 [2021-12-14 18:39:05,856 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:05,856 INFO L470 AbstractCegarLoop]: Abstraction has 8013 states and 11203 transitions. [2021-12-14 18:39:05,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 14.0) internal successors, (56), 3 states have internal predecessors, (56), 3 states have call successors, (31), 3 states have call predecessors, (31), 1 states have return successors, (29), 2 states have call predecessors, (29), 2 states have call successors, (29) [2021-12-14 18:39:05,857 INFO L276 IsEmpty]: Start isEmpty. Operand 8013 states and 11203 transitions. [2021-12-14 18:39:05,865 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 361 [2021-12-14 18:39:05,865 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:05,865 INFO L514 BasicCegarLoop]: trace histogram [28, 28, 27, 27, 27, 27, 27, 27, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:05,866 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:39:05,866 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)] === [2021-12-14 18:39:05,866 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:05,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1875553454, now seen corresponding path program 1 times [2021-12-14 18:39:05,867 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:05,869 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1029714903] [2021-12-14 18:39:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:05,870 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:05,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,133 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:06,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:06,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:06,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,196 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:06,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:06,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,239 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,255 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:06,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:06,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,288 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:06,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,302 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:06,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:06,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:06,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:06,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,364 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:06,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,373 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,379 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:06,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:06,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,407 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:06,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,422 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,428 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:06,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,438 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:06,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,460 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:06,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,470 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,476 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:06,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,494 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:06,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,510 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:06,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,522 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,528 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:06,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,545 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:06,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,556 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:06,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,572 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:06,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,578 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:06,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,589 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2021-12-14 18:39:06,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:06,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2021-12-14 18:39:06,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,614 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2021-12-14 18:39:06,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 339 [2021-12-14 18:39:06,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2021-12-14 18:39:06,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:06,633 INFO L134 CoverageAnalysis]: Checked inductivity of 3243 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3243 trivial. 0 not checked. [2021-12-14 18:39:06,633 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:06,634 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1029714903] [2021-12-14 18:39:06,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1029714903] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:06,634 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:06,635 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:06,635 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [941990345] [2021-12-14 18:39:06,635 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:06,635 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:06,636 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:06,636 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:06,637 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:06,638 INFO L87 Difference]: Start difference. First operand 8013 states and 11203 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-14 18:39:09,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:09,543 INFO L93 Difference]: Finished difference Result 15961 states and 22264 transitions. [2021-12-14 18:39:09,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:09,544 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 360 [2021-12-14 18:39:09,545 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:09,598 INFO L225 Difference]: With dead ends: 15961 [2021-12-14 18:39:09,599 INFO L226 Difference]: Without dead ends: 8007 [2021-12-14 18:39:09,690 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:09,697 INFO L933 BasicCegarLoop]: 3094 mSDtfsCounter, 2104 mSDsluCounter, 3508 mSDsCounter, 0 mSdLazyCounter, 1560 mSolverCounterSat, 824 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2356 SdHoareTripleChecker+Valid, 6602 SdHoareTripleChecker+Invalid, 2384 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 824 IncrementalHoareTripleChecker+Valid, 1560 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:09,699 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2356 Valid, 6602 Invalid, 2384 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [824 Valid, 1560 Invalid, 0 Unknown, 0 Unchecked, 2.6s Time] [2021-12-14 18:39:09,708 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8007 states. [2021-12-14 18:39:09,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8007 to 7941. [2021-12-14 18:39:09,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7941 states, 5916 states have (on average 1.3125422582826234) internal successors, (7765), 6043 states have internal predecessors, (7765), 1605 states have call successors, (1605), 421 states have call predecessors, (1605), 417 states have return successors, (1613), 1581 states have call predecessors, (1613), 1601 states have call successors, (1613) [2021-12-14 18:39:09,984 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7941 states to 7941 states and 10983 transitions. [2021-12-14 18:39:09,989 INFO L78 Accepts]: Start accepts. Automaton has 7941 states and 10983 transitions. Word has length 360 [2021-12-14 18:39:09,992 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:09,992 INFO L470 AbstractCegarLoop]: Abstraction has 7941 states and 10983 transitions. [2021-12-14 18:39:09,995 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 3 states have internal predecessors, (75), 3 states have call successors, (38), 3 states have call predecessors, (38), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-14 18:39:09,995 INFO L276 IsEmpty]: Start isEmpty. Operand 7941 states and 10983 transitions. [2021-12-14 18:39:10,009 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-12-14 18:39:10,009 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:10,009 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:10,010 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:39:10,010 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:10,010 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:10,010 INFO L85 PathProgramCache]: Analyzing trace with hash 1353308096, now seen corresponding path program 1 times [2021-12-14 18:39:10,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:10,013 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1799122339] [2021-12-14 18:39:10,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:10,013 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:10,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:10,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,212 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:10,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,226 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:10,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,249 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:10,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:10,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:10,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:10,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:10,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,323 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:10,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,344 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:10,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,355 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,362 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:10,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,372 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,378 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:10,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,388 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,394 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:10,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,409 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:10,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:10,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,436 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,442 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:10,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,451 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,457 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:10,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,466 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,472 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:10,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,488 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:10,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,504 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:10,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,531 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:10,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,549 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:10,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,569 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:10,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,591 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:10,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,601 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:10,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,624 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:10,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,640 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:10,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:10,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-14 18:39:10,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:10,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-14 18:39:10,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 18:39:10,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-14 18:39:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:10,718 INFO L134 CoverageAnalysis]: Checked inductivity of 3435 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 3423 trivial. 0 not checked. [2021-12-14 18:39:10,719 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:10,719 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1799122339] [2021-12-14 18:39:10,719 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1799122339] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:10,719 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:10,719 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:39:10,720 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940124703] [2021-12-14 18:39:10,720 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:10,720 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:39:10,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:10,721 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:39:10,721 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:39:10,727 INFO L87 Difference]: Start difference. First operand 7941 states and 10983 transitions. Second operand has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-14 18:39:14,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:14,047 INFO L93 Difference]: Finished difference Result 19783 states and 27469 transitions. [2021-12-14 18:39:14,047 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:39:14,048 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) Word has length 373 [2021-12-14 18:39:14,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:14,128 INFO L225 Difference]: With dead ends: 19783 [2021-12-14 18:39:14,129 INFO L226 Difference]: Without dead ends: 13715 [2021-12-14 18:39:14,157 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 127 GetRequests, 124 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:39:14,159 INFO L933 BasicCegarLoop]: 5059 mSDtfsCounter, 3129 mSDsluCounter, 4653 mSDsCounter, 0 mSdLazyCounter, 1782 mSolverCounterSat, 872 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3499 SdHoareTripleChecker+Valid, 9712 SdHoareTripleChecker+Invalid, 2654 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 872 IncrementalHoareTripleChecker+Valid, 1782 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.0s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:14,159 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3499 Valid, 9712 Invalid, 2654 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [872 Valid, 1782 Invalid, 0 Unknown, 0 Unchecked, 3.0s Time] [2021-12-14 18:39:14,175 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13715 states. [2021-12-14 18:39:14,543 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13715 to 13651. [2021-12-14 18:39:14,562 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13651 states, 10186 states have (on average 1.3151384252896132) internal successors, (13396), 10399 states have internal predecessors, (13396), 2745 states have call successors, (2745), 722 states have call predecessors, (2745), 717 states have return successors, (2763), 2715 states have call predecessors, (2763), 2741 states have call successors, (2763) [2021-12-14 18:39:14,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13651 states to 13651 states and 18904 transitions. [2021-12-14 18:39:14,737 INFO L78 Accepts]: Start accepts. Automaton has 13651 states and 18904 transitions. Word has length 373 [2021-12-14 18:39:14,738 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:14,738 INFO L470 AbstractCegarLoop]: Abstraction has 13651 states and 18904 transitions. [2021-12-14 18:39:14,738 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 20.25) internal successors, (81), 3 states have internal predecessors, (81), 3 states have call successors, (37), 3 states have call predecessors, (37), 1 states have return successors, (35), 3 states have call predecessors, (35), 3 states have call successors, (35) [2021-12-14 18:39:14,739 INFO L276 IsEmpty]: Start isEmpty. Operand 13651 states and 18904 transitions. [2021-12-14 18:39:14,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 374 [2021-12-14 18:39:14,748 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:14,748 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:14,748 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-12-14 18:39:14,749 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-14 18:39:14,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:14,751 INFO L85 PathProgramCache]: Analyzing trace with hash -1018431166, now seen corresponding path program 1 times [2021-12-14 18:39:14,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:14,751 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1610695690] [2021-12-14 18:39:14,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:14,751 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:14,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,168 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:15,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:15,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:15,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:15,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,236 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:15,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,265 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,271 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:15,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,283 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:15,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:15,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,332 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:15,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,356 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:15,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:15,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,389 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,396 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:15,401 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,415 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:15,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,427 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:15,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,448 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,454 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:15,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:15,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,486 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,493 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:15,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:15,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,532 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:15,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,546 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:15,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,571 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:15,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,584 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:15,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,602 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,608 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:15,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,621 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:15,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,661 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:15,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,681 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-14 18:39:15,697 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:15,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-14 18:39:15,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,727 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 18:39:15,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,738 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-14 18:39:15,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:15,753 INFO L134 CoverageAnalysis]: Checked inductivity of 3435 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3435 trivial. 0 not checked. [2021-12-14 18:39:15,753 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:15,754 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1610695690] [2021-12-14 18:39:15,754 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1610695690] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:15,754 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:15,754 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:15,754 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10567977] [2021-12-14 18:39:15,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:15,756 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:15,756 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:15,756 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:15,756 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:15,756 INFO L87 Difference]: Start difference. First operand 13651 states and 18904 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 18:39:18,669 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:18,670 INFO L93 Difference]: Finished difference Result 13717 states and 19032 transitions. [2021-12-14 18:39:18,670 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:39:18,671 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) Word has length 373 [2021-12-14 18:39:18,671 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:18,736 INFO L225 Difference]: With dead ends: 13717 [2021-12-14 18:39:18,737 INFO L226 Difference]: Without dead ends: 13715 [2021-12-14 18:39:18,748 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 131 GetRequests, 123 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:39:18,751 INFO L933 BasicCegarLoop]: 2846 mSDtfsCounter, 3055 mSDsluCounter, 5742 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 829 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3317 SdHoareTripleChecker+Valid, 8588 SdHoareTripleChecker+Invalid, 2926 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 829 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.5s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:18,752 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3317 Valid, 8588 Invalid, 2926 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [829 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.5s Time] [2021-12-14 18:39:18,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13715 states. [2021-12-14 18:39:19,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13715 to 13655. [2021-12-14 18:39:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13655 states, 10189 states have (on average 1.3150456374521542) internal successors, (13399), 10402 states have internal predecessors, (13399), 2745 states have call successors, (2745), 723 states have call predecessors, (2745), 718 states have return successors, (2763), 2715 states have call predecessors, (2763), 2741 states have call successors, (2763) [2021-12-14 18:39:19,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13655 states to 13655 states and 18907 transitions. [2021-12-14 18:39:19,245 INFO L78 Accepts]: Start accepts. Automaton has 13655 states and 18907 transitions. Word has length 373 [2021-12-14 18:39:19,247 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:19,247 INFO L470 AbstractCegarLoop]: Abstraction has 13655 states and 18907 transitions. [2021-12-14 18:39:19,248 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 4 states have internal predecessors, (71), 2 states have call successors, (36), 4 states have call predecessors, (36), 1 states have return successors, (34), 2 states have call predecessors, (34), 2 states have call successors, (34) [2021-12-14 18:39:19,248 INFO L276 IsEmpty]: Start isEmpty. Operand 13655 states and 18907 transitions. [2021-12-14 18:39:19,256 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 379 [2021-12-14 18:39:19,256 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:19,256 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:19,257 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-12-14 18:39:19,257 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)] === [2021-12-14 18:39:19,257 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:19,257 INFO L85 PathProgramCache]: Analyzing trace with hash 286315605, now seen corresponding path program 1 times [2021-12-14 18:39:19,257 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:19,258 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157686068] [2021-12-14 18:39:19,258 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:19,258 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:19,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,524 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:19,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,538 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:19,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,553 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:19,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:19,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,687 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,693 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:19,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,709 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:19,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,725 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:19,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:19,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:19,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,771 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:19,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,794 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:19,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:19,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:19,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,899 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:19,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:19,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:19,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:19,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,964 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:19,988 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:19,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,007 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:20,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,026 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:20,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,038 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:20,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:20,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,077 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:20,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,104 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:20,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,115 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:20,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-14 18:39:20,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:20,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-14 18:39:20,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 18:39:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-14 18:39:20,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,177 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-14 18:39:20,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:20,188 INFO L134 CoverageAnalysis]: Checked inductivity of 3437 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 3435 trivial. 0 not checked. [2021-12-14 18:39:20,188 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:20,189 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157686068] [2021-12-14 18:39:20,189 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157686068] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:20,189 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:20,189 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:20,189 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376614866] [2021-12-14 18:39:20,190 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:20,191 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:20,191 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:20,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:20,192 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:20,192 INFO L87 Difference]: Start difference. First operand 13655 states and 18907 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 18:39:22,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:22,823 INFO L93 Difference]: Finished difference Result 13721 states and 19035 transitions. [2021-12-14 18:39:22,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:39:22,824 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) Word has length 378 [2021-12-14 18:39:22,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:22,893 INFO L225 Difference]: With dead ends: 13721 [2021-12-14 18:39:22,893 INFO L226 Difference]: Without dead ends: 13719 [2021-12-14 18:39:22,906 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 133 GetRequests, 125 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:39:22,907 INFO L933 BasicCegarLoop]: 2849 mSDtfsCounter, 3047 mSDsluCounter, 5742 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 828 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 8591 SdHoareTripleChecker+Invalid, 2925 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 828 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.3s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:22,907 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3309 Valid, 8591 Invalid, 2925 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [828 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.3s Time] [2021-12-14 18:39:22,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13719 states. [2021-12-14 18:39:23,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13719 to 13659. [2021-12-14 18:39:23,379 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13659 states, 10192 states have (on average 1.3149529042386185) internal successors, (13402), 10405 states have internal predecessors, (13402), 2745 states have call successors, (2745), 724 states have call predecessors, (2745), 719 states have return successors, (2763), 2715 states have call predecessors, (2763), 2741 states have call successors, (2763) [2021-12-14 18:39:23,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13659 states to 13659 states and 18910 transitions. [2021-12-14 18:39:23,433 INFO L78 Accepts]: Start accepts. Automaton has 13659 states and 18910 transitions. Word has length 378 [2021-12-14 18:39:23,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:23,434 INFO L470 AbstractCegarLoop]: Abstraction has 13659 states and 18910 transitions. [2021-12-14 18:39:23,434 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (37), 4 states have call predecessors, (37), 1 states have return successors, (35), 2 states have call predecessors, (35), 2 states have call successors, (35) [2021-12-14 18:39:23,435 INFO L276 IsEmpty]: Start isEmpty. Operand 13659 states and 18910 transitions. [2021-12-14 18:39:23,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2021-12-14 18:39:23,441 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:23,441 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 27, 27, 27, 27, 27, 27, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:23,441 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-12-14 18:39:23,442 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)] === [2021-12-14 18:39:23,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:23,442 INFO L85 PathProgramCache]: Analyzing trace with hash -1817836318, now seen corresponding path program 1 times [2021-12-14 18:39:23,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:23,442 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2056063663] [2021-12-14 18:39:23,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:23,443 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:23,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:23,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,716 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,721 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:23,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:23,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,752 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:23,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:23,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,782 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:23,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:23,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:23,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:23,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,853 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:23,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:23,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:23,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:23,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:23,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:23,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,959 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:23,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,975 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:23,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:23,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:23,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:23,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:24,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,028 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,035 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:24,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,046 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:24,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,079 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:24,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:24,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:24,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,130 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:24,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,153 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:24,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,179 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:24,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:24,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,204 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-14 18:39:24,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:24,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-14 18:39:24,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 18:39:24,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-14 18:39:24,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,274 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-14 18:39:24,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-12-14 18:39:24,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:24,292 INFO L134 CoverageAnalysis]: Checked inductivity of 3443 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 3439 trivial. 0 not checked. [2021-12-14 18:39:24,292 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:24,292 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2056063663] [2021-12-14 18:39:24,292 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2056063663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:24,292 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:24,293 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:24,293 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [733459690] [2021-12-14 18:39:24,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:24,293 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:24,293 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:24,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:24,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:24,294 INFO L87 Difference]: Start difference. First operand 13659 states and 18910 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 18:39:26,647 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:39:26,647 INFO L93 Difference]: Finished difference Result 13725 states and 19038 transitions. [2021-12-14 18:39:26,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:39:26,647 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) Word has length 383 [2021-12-14 18:39:26,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:39:26,706 INFO L225 Difference]: With dead ends: 13725 [2021-12-14 18:39:26,706 INFO L226 Difference]: Without dead ends: 13723 [2021-12-14 18:39:26,718 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 135 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=34, Invalid=56, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:39:26,719 INFO L933 BasicCegarLoop]: 2849 mSDtfsCounter, 3047 mSDsluCounter, 5742 mSDsCounter, 0 mSdLazyCounter, 2097 mSolverCounterSat, 827 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3309 SdHoareTripleChecker+Valid, 8591 SdHoareTripleChecker+Invalid, 2924 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 827 IncrementalHoareTripleChecker+Valid, 2097 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:39:26,720 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [3309 Valid, 8591 Invalid, 2924 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [827 Valid, 2097 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2021-12-14 18:39:26,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13723 states. [2021-12-14 18:39:27,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13723 to 13663. [2021-12-14 18:39:27,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13663 states, 10195 states have (on average 1.3148602256007846) internal successors, (13405), 10408 states have internal predecessors, (13405), 2745 states have call successors, (2745), 725 states have call predecessors, (2745), 720 states have return successors, (2763), 2715 states have call predecessors, (2763), 2741 states have call successors, (2763) [2021-12-14 18:39:27,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13663 states to 13663 states and 18913 transitions. [2021-12-14 18:39:27,251 INFO L78 Accepts]: Start accepts. Automaton has 13663 states and 18913 transitions. Word has length 383 [2021-12-14 18:39:27,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:39:27,252 INFO L470 AbstractCegarLoop]: Abstraction has 13663 states and 18913 transitions. [2021-12-14 18:39:27,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (38), 4 states have call predecessors, (38), 1 states have return successors, (36), 2 states have call predecessors, (36), 2 states have call successors, (36) [2021-12-14 18:39:27,252 INFO L276 IsEmpty]: Start isEmpty. Operand 13663 states and 18913 transitions. [2021-12-14 18:39:27,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 389 [2021-12-14 18:39:27,260 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:39:27,260 INFO L514 BasicCegarLoop]: trace histogram [30, 30, 27, 27, 27, 27, 27, 27, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:39:27,261 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-12-14 18:39:27,261 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)] === [2021-12-14 18:39:27,261 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:39:27,261 INFO L85 PathProgramCache]: Analyzing trace with hash 1065827381, now seen corresponding path program 1 times [2021-12-14 18:39:27,261 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:39:27,262 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [823131297] [2021-12-14 18:39:27,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:39:27,262 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:39:27,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,492 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:39:27,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,503 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,509 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:39:27,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:39:27,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,541 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:39:27,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:39:27,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,580 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:39:27,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,590 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:39:27,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,607 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:39:27,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,623 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,628 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:39:27,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,638 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:39:27,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,653 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:39:27,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-14 18:39:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,690 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-14 18:39:27,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,705 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-14 18:39:27,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,715 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:39:27,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,729 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,734 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:39:27,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,744 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-12-14 18:39:27,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:39:27,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,776 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2021-12-14 18:39:27,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 212 [2021-12-14 18:39:27,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2021-12-14 18:39:27,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-14 18:39:27,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,841 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,846 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 245 [2021-12-14 18:39:27,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,857 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 256 [2021-12-14 18:39:27,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2021-12-14 18:39:27,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,889 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2021-12-14 18:39:27,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,912 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 289 [2021-12-14 18:39:27,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2021-12-14 18:39:27,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2021-12-14 18:39:27,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,953 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 329 [2021-12-14 18:39:27,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:39:27,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2021-12-14 18:39:27,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 348 [2021-12-14 18:39:27,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2021-12-14 18:39:27,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:27,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 369 [2021-12-14 18:39:27,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:28,005 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 374 [2021-12-14 18:39:28,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:28,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 379 [2021-12-14 18:39:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:39:28,020 INFO L134 CoverageAnalysis]: Checked inductivity of 3453 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 3447 trivial. 0 not checked. [2021-12-14 18:39:28,021 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:39:28,021 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [823131297] [2021-12-14 18:39:28,021 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [823131297] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:39:28,021 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:39:28,021 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:39:28,022 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1923025258] [2021-12-14 18:39:28,022 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:39:28,022 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:39:28,022 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:39:28,023 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:39:28,023 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:39:28,023 INFO L87 Difference]: Start difference. First operand 13663 states and 18913 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 4 states have internal predecessors, (74), 2 states have call successors, (39), 4 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37)