./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0f8a17c6 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.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 619aeafe9cb645c9ebda9f6c63ec8c867e492d9d8d95ab95c903aac2c0ac3a48 --- Real Ultimate output --- This is Ultimate 0.2.1-dev-0f8a17c [2021-11-17 11:16:51,058 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-11-17 11:16:51,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-11-17 11:16:51,110 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-11-17 11:16:51,111 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-11-17 11:16:51,113 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-11-17 11:16:51,115 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-11-17 11:16:51,117 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-11-17 11:16:51,118 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-11-17 11:16:51,122 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-11-17 11:16:51,122 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-11-17 11:16:51,123 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-11-17 11:16:51,123 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-11-17 11:16:51,125 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-11-17 11:16:51,126 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-11-17 11:16:51,129 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-11-17 11:16:51,130 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-11-17 11:16:51,130 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-11-17 11:16:51,133 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-11-17 11:16:51,134 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-11-17 11:16:51,137 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-11-17 11:16:51,137 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-11-17 11:16:51,139 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-11-17 11:16:51,139 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-11-17 11:16:51,142 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-11-17 11:16:51,145 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-11-17 11:16:51,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-11-17 11:16:51,146 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-11-17 11:16:51,147 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-11-17 11:16:51,147 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-11-17 11:16:51,148 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-11-17 11:16:51,148 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-11-17 11:16:51,149 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-11-17 11:16:51,150 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-11-17 11:16:51,150 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-11-17 11:16:51,151 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-11-17 11:16:51,152 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-11-17 11:16:51,152 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-11-17 11:16:51,152 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-11-17 11:16:51,153 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-11-17 11:16:51,153 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-11-17 11:16:51,154 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-11-17 11:16:51,173 INFO L113 SettingsManager]: Loading preferences was successful [2021-11-17 11:16:51,174 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-11-17 11:16:51,175 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-11-17 11:16:51,175 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-11-17 11:16:51,176 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-11-17 11:16:51,176 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-11-17 11:16:51,176 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-11-17 11:16:51,176 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-11-17 11:16:51,176 INFO L138 SettingsManager]: * Use SBE=true [2021-11-17 11:16:51,177 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-11-17 11:16:51,177 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-11-17 11:16:51,177 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-11-17 11:16:51,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * Use constant arrays=true [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-11-17 11:16:51,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-11-17 11:16:51,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:16:51,179 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-11-17 11:16:51,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-11-17 11:16:51,180 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-11-17 11:16:51,180 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-11-17 11:16:51,180 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-11-17 11:16:51,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-11-17 11:16:51,180 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 619aeafe9cb645c9ebda9f6c63ec8c867e492d9d8d95ab95c903aac2c0ac3a48 [2021-11-17 11:16:51,352 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-11-17 11:16:51,366 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-11-17 11:16:51,369 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-11-17 11:16:51,394 INFO L271 PluginConnector]: Initializing CDTParser... [2021-11-17 11:16:51,394 INFO L275 PluginConnector]: CDTParser initialized [2021-11-17 11:16:51,396 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 11:16:51,451 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efbdca3/c6fac297265042be9f7147362c38749f/FLAGe95f1dc10 [2021-11-17 11:16:52,197 INFO L306 CDTParser]: Found 1 translation units. [2021-11-17 11:16:52,198 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 11:16:52,252 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efbdca3/c6fac297265042be9f7147362c38749f/FLAGe95f1dc10 [2021-11-17 11:16:52,469 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f7efbdca3/c6fac297265042be9f7147362c38749f [2021-11-17 11:16:52,471 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-11-17 11:16:52,473 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-11-17 11:16:52,475 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-11-17 11:16:52,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-11-17 11:16:52,478 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-11-17 11:16:52,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:16:52" (1/1) ... [2021-11-17 11:16:52,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@776d452e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:52, skipping insertion in model container [2021-11-17 11:16:52,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.11 11:16:52" (1/1) ... [2021-11-17 11:16:52,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-11-17 11:16:52,593 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-11-17 11:16:55,727 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475371,475384] [2021-11-17 11:16:55,730 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475540,475553] [2021-11-17 11:16:55,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475707,475720] [2021-11-17 11:16:55,731 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475875,475888] [2021-11-17 11:16:55,764 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:16:55,823 INFO L203 MainTranslator]: Completed pre-run [2021-11-17 11:16:56,147 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475371,475384] [2021-11-17 11:16:56,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475540,475553] [2021-11-17 11:16:56,148 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475707,475720] [2021-11-17 11:16:56,149 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i[475875,475888] [2021-11-17 11:16:56,153 INFO L207 PostProcessor]: Analyzing one entry point: main [2021-11-17 11:16:56,329 INFO L208 MainTranslator]: Completed translation [2021-11-17 11:16:56,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56 WrapperNode [2021-11-17 11:16:56,330 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-11-17 11:16:56,331 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-11-17 11:16:56,331 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-11-17 11:16:56,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-11-17 11:16:56,336 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,431 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,640 INFO L137 Inliner]: procedures = 638, calls = 3834, calls flagged for inlining = 348, calls inlined = 311, statements flattened = 8720 [2021-11-17 11:16:56,641 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-11-17 11:16:56,642 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-11-17 11:16:56,642 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-11-17 11:16:56,643 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-11-17 11:16:56,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,694 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,695 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,846 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,871 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,902 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,938 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-11-17 11:16:56,940 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-11-17 11:16:56,940 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-11-17 11:16:56,941 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-11-17 11:16:56,942 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (1/1) ... [2021-11-17 11:16:56,947 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-11-17 11:16:56,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-11-17 11:16:56,963 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-11-17 11:16:56,976 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-11-17 11:16:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure pci_release_regions [2021-11-17 11:16:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_release_regions [2021-11-17 11:16:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-11-17 11:16:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-11-17 11:16:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_84 [2021-11-17 11:16:56,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_84 [2021-11-17 11:16:56,993 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-11-17 11:16:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-11-17 11:16:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure debug_lockdep_rcu_enabled [2021-11-17 11:16:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_lockdep_rcu_enabled [2021-11-17 11:16:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-11-17 11:16:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-11-17 11:16:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:16:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lock [2021-11-17 11:16:56,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irq_80 [2021-11-17 11:16:56,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irq_80 [2021-11-17 11:16:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure netif_napi_del [2021-11-17 11:16:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_napi_del [2021-11-17 11:16:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-11-17 11:16:56,995 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-11-17 11:16:56,995 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-11-17 11:16:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-11-17 11:16:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_resume [2021-11-17 11:16:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_resume [2021-11-17 11:16:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_print_link_status [2021-11-17 11:16:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_print_link_status [2021-11-17 11:16:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_registers [2021-11-17 11:16:56,996 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_registers [2021-11-17 11:16:56,996 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_write [2021-11-17 11:16:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_write [2021-11-17 11:16:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-11-17 11:16:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-11-17 11:16:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-11-17 11:16:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-11-17 11:16:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure skb_end_pointer [2021-11-17 11:16:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_end_pointer [2021-11-17 11:16:56,997 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-11-17 11:16:56,997 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-11-17 11:16:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_remove [2021-11-17 11:16:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_remove [2021-11-17 11:16:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-11-17 11:16:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-11-17 11:16:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure enable_flow_control_ability [2021-11-17 11:16:56,998 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_flow_control_ability [2021-11-17 11:16:56,998 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-11-17 11:16:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure iounmap [2021-11-17 11:16:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure iounmap [2021-11-17 11:16:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure set_pending_timer_val [2021-11-17 11:16:56,999 INFO L138 BoogieDeclarations]: Found implementation of procedure set_pending_timer_val [2021-11-17 11:16:56,999 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-11-17 11:16:57,000 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-11-17 11:16:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-11-17 11:16:57,000 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-11-17 11:16:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-11-17 11:16:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_up [2021-11-17 11:16:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_up [2021-11-17 11:16:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure mac_wol_reset [2021-11-17 11:16:57,001 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_wol_reset [2021-11-17 11:16:57,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-11-17 11:16:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_ethtool_down [2021-11-17 11:16:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_ethtool_down [2021-11-17 11:16:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-11-17 11:16:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-11-17 11:16:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_vlan_cam_mask [2021-11-17 11:16:57,002 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_vlan_cam_mask [2021-11-17 11:16:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-11-17 11:16:57,002 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-11-17 11:16:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-11-17 11:16:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-11-17 11:16:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-11-17 11:16:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-11-17 11:16:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-11-17 11:16:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-11-17 11:16:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-11-17 11:16:57,003 INFO L130 BoogieDeclarations]: Found specification of procedure rcu_is_watching [2021-11-17 11:16:57,003 INFO L138 BoogieDeclarations]: Found implementation of procedure rcu_is_watching [2021-11-17 11:16:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_opt_media_mode [2021-11-17 11:16:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_opt_media_mode [2021-11-17 11:16:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_tx_srv [2021-11-17 11:16:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_tx_srv [2021-11-17 11:16:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure __netdev_alloc_skb [2021-11-17 11:16:57,004 INFO L138 BoogieDeclarations]: Found implementation of procedure __netdev_alloc_skb [2021-11-17 11:16:57,004 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-11-17 11:16:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-11-17 11:16:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-11-17 11:16:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-11-17 11:16:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_rx_refill [2021-11-17 11:16:57,005 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_rx_refill [2021-11-17 11:16:57,005 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:16:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exit [2021-11-17 11:16:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure mii_set_auto_on [2021-11-17 11:16:57,006 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_set_auto_on [2021-11-17 11:16:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-11-17 11:16:57,006 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-11-17 11:16:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-11-17 11:16:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-11-17 11:16:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-11-17 11:16:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-11-17 11:16:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-11-17 11:16:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_save_context [2021-11-17 11:16:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_save_context [2021-11-17 11:16:57,007 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-11-17 11:16:57,007 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-11-17 11:16:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure dma_map_single_attrs [2021-11-17 11:16:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_map_single_attrs [2021-11-17 11:16:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-11-17 11:16:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-11-17 11:16:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-11-17 11:16:57,008 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-11-17 11:16:57,008 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-11-17 11:16:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-11-17 11:16:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-11-17 11:16:57,009 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:16:57,011 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-11-17 11:16:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:16:57,012 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-11-17 11:16:57,012 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_update_hw_mibs [2021-11-17 11:16:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_update_hw_mibs [2021-11-17 11:16:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_shutdown [2021-11-17 11:16:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_shutdown [2021-11-17 11:16:57,013 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-11-17 11:16:57,013 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-11-17 11:16:57,017 INFO L130 BoogieDeclarations]: Found specification of procedure setup_queue_timers [2021-11-17 11:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_queue_timers [2021-11-17 11:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure debug_dma_map_page [2021-11-17 11:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure debug_dma_map_page [2021-11-17 11:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-11-17 11:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-11-17 11:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rd_ring [2021-11-17 11:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rd_ring [2021-11-17 11:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-11-17 11:16:57,018 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-11-17 11:16:57,018 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-11-17 11:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-11-17 11:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_dma_rings [2021-11-17 11:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_dma_rings [2021-11-17 11:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure safe_disable_mii_autopoll [2021-11-17 11:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure safe_disable_mii_autopoll [2021-11-17 11:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure skb_frag_size [2021-11-17 11:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_frag_size [2021-11-17 11:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure get_pending_timer_val [2021-11-17 11:16:57,019 INFO L138 BoogieDeclarations]: Found implementation of procedure get_pending_timer_val [2021-11-17 11:16:57,019 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_unregister_notifier [2021-11-17 11:16:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_unregister_notifier [2021-11-17 11:16:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure writel [2021-11-17 11:16:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure writel [2021-11-17 11:16:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-11-17 11:16:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-11-17 11:16:57,020 INFO L130 BoogieDeclarations]: Found specification of procedure writeb [2021-11-17 11:16:57,020 INFO L138 BoogieDeclarations]: Found implementation of procedure writeb [2021-11-17 11:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure writew [2021-11-17 11:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure writew [2021-11-17 11:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-11-17 11:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-11-17 11:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_media_mode [2021-11-17 11:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_media_mode [2021-11-17 11:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_cam_filter [2021-11-17 11:16:57,021 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_cam_filter [2021-11-17 11:16:57,021 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_probe [2021-11-17 11:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_probe [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-11-17 11:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_pci_remove [2021-11-17 11:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_pci_remove [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~$Pointer$~X~int~X~int~X~int~X~$Pointer$~TO~~dma_addr_t~0 [2021-11-17 11:16:57,022 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:16:57,022 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlock [2021-11-17 11:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure netif_carrier_off [2021-11-17 11:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_carrier_off [2021-11-17 11:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_velocity_info [2021-11-17 11:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_velocity_info [2021-11-17 11:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rings [2021-11-17 11:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rings [2021-11-17 11:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure kmemcheck_mark_initialized [2021-11-17 11:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure kmemcheck_mark_initialized [2021-11-17 11:16:57,023 INFO L130 BoogieDeclarations]: Found specification of procedure enable_mii_autopoll [2021-11-17 11:16:57,023 INFO L138 BoogieDeclarations]: Found implementation of procedure enable_mii_autopoll [2021-11-17 11:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure ethtool_cmd_speed_set [2021-11-17 11:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ethtool_cmd_speed_set [2021-11-17 11:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-11-17 11:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-11-17 11:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-11-17 11:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-11-17 11:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-11-17 11:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-11-17 11:16:57,024 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-11-17 11:16:57,024 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-11-17 11:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_irq_79 [2021-11-17 11:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_irq_79 [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure dma_unmap_single_attrs [2021-11-17 11:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_unmap_single_attrs [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-11-17 11:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure netif_start_queue [2021-11-17 11:16:57,025 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_start_queue [2021-11-17 11:16:57,025 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_int_opt [2021-11-17 11:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_int_opt [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-11-17 11:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure mac_set_cam_mask [2021-11-17 11:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure mac_set_cam_mask [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_suspend [2021-11-17 11:16:57,026 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_suspend [2021-11-17 11:16:57,026 INFO L130 BoogieDeclarations]: Found specification of procedure pci_enable_wake [2021-11-17 11:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_enable_wake [2021-11-17 11:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_ip [2021-11-17 11:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_ip [2021-11-17 11:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-11-17 11:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_get_link [2021-11-17 11:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_get_link [2021-11-17 11:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~X~~structbegin~int~structend~~TO~int [2021-11-17 11:16:57,027 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-11-17 11:16:57,027 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure setup_adaptive_interrupts [2021-11-17 11:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure setup_adaptive_interrupts [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-11-17 11:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-11-17 11:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-11-17 11:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_power_state [2021-11-17 11:16:57,028 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_power_state [2021-11-17 11:16:57,028 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_close [2021-11-17 11:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_close [2021-11-17 11:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-11-17 11:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-11-17 11:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_bool_opt [2021-11-17 11:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_bool_opt [2021-11-17 11:16:57,029 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-11-17 11:16:57,029 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-11-17 11:16:57,030 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-11-17 11:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-11-17 11:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-11-17 11:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-11-17 11:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-11-17 11:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-11-17 11:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-11-17 11:16:57,032 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_free_rings [2021-11-17 11:16:57,032 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_free_rings [2021-11-17 11:16:57,033 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_intr [2021-11-17 11:16:57,033 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_intr [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-11-17 11:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_86 [2021-11-17 11:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_86 [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-11-17 11:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_remove [2021-11-17 11:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_remove [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure check_connection_type [2021-11-17 11:16:57,034 INFO L138 BoogieDeclarations]: Found implementation of procedure check_connection_type [2021-11-17 11:16:57,034 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_rcu_suspicious [2021-11-17 11:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_rcu_suspicious [2021-11-17 11:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_init_rx_ring_indexes [2021-11-17 11:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_init_rx_ring_indexes [2021-11-17 11:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_mii_read [2021-11-17 11:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_mii_read [2021-11-17 11:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_open [2021-11-17 11:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_open [2021-11-17 11:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_give_many_rx_descs [2021-11-17 11:16:57,035 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_give_many_rx_descs [2021-11-17 11:16:57,035 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-11-17 11:16:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-11-17 11:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_set_multi [2021-11-17 11:16:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_set_multi [2021-11-17 11:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure readw [2021-11-17 11:16:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure readw [2021-11-17 11:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_platform_probe [2021-11-17 11:16:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_platform_probe [2021-11-17 11:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure readl [2021-11-17 11:16:57,036 INFO L138 BoogieDeclarations]: Found implementation of procedure readl [2021-11-17 11:16:57,036 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-11-17 11:16:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-11-17 11:16:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-11-17 11:16:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_velocity_info [2021-11-17 11:16:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_velocity_info [2021-11-17 11:16:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure velocity_poll_controller [2021-11-17 11:16:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure velocity_poll_controller [2021-11-17 11:16:57,037 INFO L130 BoogieDeclarations]: Found specification of procedure readb [2021-11-17 11:16:57,037 INFO L138 BoogieDeclarations]: Found implementation of procedure readb [2021-11-17 11:16:57,981 INFO L236 CfgBuilder]: Building ICFG [2021-11-17 11:16:57,986 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-11-17 11:16:58,705 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-11-17 11:28:49,461 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-11-17 11:28:49,551 INFO L277 CfgBuilder]: Performing block encoding [2021-11-17 11:28:49,577 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-11-17 11:28:49,578 INFO L301 CfgBuilder]: Removed 4 assume(true) statements. [2021-11-17 11:28:49,581 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:28:49 BoogieIcfgContainer [2021-11-17 11:28:49,581 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-11-17 11:28:49,584 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-11-17 11:28:49,584 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-11-17 11:28:49,586 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-11-17 11:28:49,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.11 11:16:52" (1/3) ... [2021-11-17 11:28:49,587 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb9c239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:28:49, skipping insertion in model container [2021-11-17 11:28:49,587 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.11 11:16:56" (2/3) ... [2021-11-17 11:28:49,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3bb9c239 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.11 11:28:49, skipping insertion in model container [2021-11-17 11:28:49,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.11 11:28:49" (3/3) ... [2021-11-17 11:28:49,591 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-spinlock_drivers-net-ethernet-via-via-velocity.cil.i [2021-11-17 11:28:49,594 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-11-17 11:28:49,594 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-11-17 11:28:49,648 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-11-17 11:28:49,658 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-11-17 11:28:49,658 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-11-17 11:28:49,709 INFO L276 IsEmpty]: Start isEmpty. Operand has 3128 states, 2131 states have (on average 1.29422806194275) internal successors, (2758), 2193 states have internal predecessors, (2758), 861 states have call successors, (861), 136 states have call predecessors, (861), 135 states have return successors, (853), 832 states have call predecessors, (853), 853 states have call successors, (853) [2021-11-17 11:28:49,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2021-11-17 11:28:49,724 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:28:49,725 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:28:49,726 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:28:49,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:28:49,730 INFO L85 PathProgramCache]: Analyzing trace with hash 1180805878, now seen corresponding path program 1 times [2021-11-17 11:28:49,735 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:28:49,735 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2052274575] [2021-11-17 11:28:49,736 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:28:49,736 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:28:50,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:28:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,833 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:28:50,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,865 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:28:50,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,881 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:28:50,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,895 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:28:50,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:28:50,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,925 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,933 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:28:50,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:28:50,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:28:50,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:50,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:50,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:28:50,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,002 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,008 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:28:51,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,017 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:28:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,033 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:28:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,049 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:28:51,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,065 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:28:51,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,093 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:28:51,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,101 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 11:28:51,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2021-11-17 11:28:51,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:28:51,124 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 11:28:51,125 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:28:51,125 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2052274575] [2021-11-17 11:28:51,128 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2052274575] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:28:51,128 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:28:51,128 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:28:51,130 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125681587] [2021-11-17 11:28:51,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:28:51,134 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:28:51,134 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:28:51,158 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:28:51,158 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:28:51,166 INFO L87 Difference]: Start difference. First operand has 3128 states, 2131 states have (on average 1.29422806194275) internal successors, (2758), 2193 states have internal predecessors, (2758), 861 states have call successors, (861), 136 states have call predecessors, (861), 135 states have return successors, (853), 832 states have call predecessors, (853), 853 states have call successors, (853) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:28:53,288 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:28:55,670 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:29:13,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:29:13,994 INFO L93 Difference]: Finished difference Result 9401 states and 13740 transitions. [2021-11-17 11:29:13,996 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:29:13,997 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 189 [2021-11-17 11:29:13,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:29:14,072 INFO L225 Difference]: With dead ends: 9401 [2021-11-17 11:29:14,073 INFO L226 Difference]: Without dead ends: 6295 [2021-11-17 11:29:14,098 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:29:14,101 INFO L933 BasicCegarLoop]: 4641 mSDtfsCounter, 5701 mSDsluCounter, 4762 mSDsCounter, 0 mSdLazyCounter, 3035 mSolverCounterSat, 2677 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6472 SdHoareTripleChecker+Valid, 9403 SdHoareTripleChecker+Invalid, 5714 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2677 IncrementalHoareTripleChecker+Valid, 3035 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 22.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:29:14,102 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6472 Valid, 9403 Invalid, 5714 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2677 Valid, 3035 Invalid, 2 Unknown, 0 Unchecked, 22.0s Time] [2021-11-17 11:29:14,121 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6295 states. [2021-11-17 11:29:14,390 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6295 to 6033. [2021-11-17 11:29:14,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6033 states, 4115 states have (on average 1.28456865127582) internal successors, (5286), 4235 states have internal predecessors, (5286), 1648 states have call successors, (1648), 268 states have call predecessors, (1648), 267 states have return successors, (1645), 1603 states have call predecessors, (1645), 1645 states have call successors, (1645) [2021-11-17 11:29:14,442 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6033 states to 6033 states and 8579 transitions. [2021-11-17 11:29:14,446 INFO L78 Accepts]: Start accepts. Automaton has 6033 states and 8579 transitions. Word has length 189 [2021-11-17 11:29:14,449 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:29:14,449 INFO L470 AbstractCegarLoop]: Abstraction has 6033 states and 8579 transitions. [2021-11-17 11:29:14,450 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (20), 3 states have call predecessors, (20), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:29:14,450 INFO L276 IsEmpty]: Start isEmpty. Operand 6033 states and 8579 transitions. [2021-11-17 11:29:14,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2021-11-17 11:29:14,456 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:29:14,457 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:29:14,457 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-11-17 11:29:14,458 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)] === [2021-11-17 11:29:14,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:29:14,458 INFO L85 PathProgramCache]: Analyzing trace with hash -421664659, now seen corresponding path program 1 times [2021-11-17 11:29:14,458 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:29:14,460 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2009911775] [2021-11-17 11:29:14,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:29:14,460 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:29:14,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:29:15,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,068 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:29:15,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:29:15,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,085 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:29:15,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:29:15,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:29:15,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:29:15,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:29:15,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:29:15,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:29:15,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:29:15,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,199 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:29:15,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:29:15,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,246 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:29:15,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,256 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:29:15,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:15,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 11:29:15,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-11-17 11:29:15,282 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:15,286 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 11:29:15,287 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:29:15,288 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2009911775] [2021-11-17 11:29:15,289 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2009911775] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:29:15,289 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:29:15,289 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:29:15,289 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2059871992] [2021-11-17 11:29:15,289 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:29:15,291 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:29:15,291 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:29:15,291 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:29:15,291 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:29:15,292 INFO L87 Difference]: Start difference. First operand 6033 states and 8579 transitions. Second operand has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:29:17,390 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.10s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:29:19,792 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:29:39,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:29:39,262 INFO L93 Difference]: Finished difference Result 18397 states and 26456 transitions. [2021-11-17 11:29:39,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:29:39,263 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 195 [2021-11-17 11:29:39,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:29:39,344 INFO L225 Difference]: With dead ends: 18397 [2021-11-17 11:29:39,344 INFO L226 Difference]: Without dead ends: 12399 [2021-11-17 11:29:39,377 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:29:39,378 INFO L933 BasicCegarLoop]: 4672 mSDtfsCounter, 5697 mSDsluCounter, 4804 mSDsCounter, 0 mSdLazyCounter, 3036 mSolverCounterSat, 2726 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6459 SdHoareTripleChecker+Valid, 9476 SdHoareTripleChecker+Invalid, 5764 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2726 IncrementalHoareTripleChecker+Valid, 3036 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 23.0s IncrementalHoareTripleChecker+Time [2021-11-17 11:29:39,379 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [6459 Valid, 9476 Invalid, 5764 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2726 Valid, 3036 Invalid, 2 Unknown, 0 Unchecked, 23.0s Time] [2021-11-17 11:29:39,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12399 states. [2021-11-17 11:29:39,740 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12399 to 11971. [2021-11-17 11:29:39,770 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 11971 states, 8167 states have (on average 1.2861515856495653) internal successors, (10504), 8417 states have internal predecessors, (10504), 3262 states have call successors, (3262), 534 states have call predecessors, (3262), 539 states have return successors, (3413), 3167 states have call predecessors, (3413), 3259 states have call successors, (3413) [2021-11-17 11:29:39,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11971 states to 11971 states and 17179 transitions. [2021-11-17 11:29:39,817 INFO L78 Accepts]: Start accepts. Automaton has 11971 states and 17179 transitions. Word has length 195 [2021-11-17 11:29:39,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:29:39,818 INFO L470 AbstractCegarLoop]: Abstraction has 11971 states and 17179 transitions. [2021-11-17 11:29:39,818 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 10.5) internal successors, (42), 3 states have internal predecessors, (42), 3 states have call successors, (21), 3 states have call predecessors, (21), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:29:39,818 INFO L276 IsEmpty]: Start isEmpty. Operand 11971 states and 17179 transitions. [2021-11-17 11:29:39,821 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 206 [2021-11-17 11:29:39,821 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:29:39,821 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:29:39,822 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-11-17 11:29:39,822 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)] === [2021-11-17 11:29:39,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:29:39,822 INFO L85 PathProgramCache]: Analyzing trace with hash 457083602, now seen corresponding path program 1 times [2021-11-17 11:29:39,823 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:29:39,823 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2055090819] [2021-11-17 11:29:39,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:29:39,823 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:29:40,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:29:40,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,733 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:29:40,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,743 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:29:40,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:29:40,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,770 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:29:40,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:29:40,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:29:40,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,798 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:29:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:29:40,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:29:40,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,847 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:29:40,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:29:40,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:29:40,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,884 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:29:40,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,892 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,897 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:29:40,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:29:40,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,911 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 11:29:40,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2021-11-17 11:29:40,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:29:40,928 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 11:29:40,928 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:29:40,928 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2055090819] [2021-11-17 11:29:40,928 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2055090819] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:29:40,929 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:29:40,929 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-11-17 11:29:40,929 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [472459247] [2021-11-17 11:29:40,929 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:29:40,930 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-11-17 11:29:40,930 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:29:40,930 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-11-17 11:29:40,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2021-11-17 11:29:40,932 INFO L87 Difference]: Start difference. First operand 11971 states and 17179 transitions. Second operand has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:29:43,044 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:29:45,426 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.38s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:30:34,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:30:34,901 INFO L93 Difference]: Finished difference Result 36219 states and 52150 transitions. [2021-11-17 11:30:34,903 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-11-17 11:30:34,903 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 205 [2021-11-17 11:30:34,903 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:30:35,054 INFO L225 Difference]: With dead ends: 36219 [2021-11-17 11:30:35,055 INFO L226 Difference]: Without dead ends: 24283 [2021-11-17 11:30:35,124 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 74 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2021-11-17 11:30:35,128 INFO L933 BasicCegarLoop]: 5106 mSDtfsCounter, 13507 mSDsluCounter, 10209 mSDsCounter, 0 mSdLazyCounter, 10044 mSolverCounterSat, 6243 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 48.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14999 SdHoareTripleChecker+Valid, 15315 SdHoareTripleChecker+Invalid, 16289 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.2s SdHoareTripleChecker+Time, 6243 IncrementalHoareTripleChecker+Valid, 10044 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 52.4s IncrementalHoareTripleChecker+Time [2021-11-17 11:30:35,129 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [14999 Valid, 15315 Invalid, 16289 Unknown, 0 Unchecked, 0.2s Time], IncrementalHoareTripleChecker [6243 Valid, 10044 Invalid, 2 Unknown, 0 Unchecked, 52.4s Time] [2021-11-17 11:30:35,153 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24283 states. [2021-11-17 11:30:36,000 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24283 to 23439. [2021-11-17 11:30:36,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23439 states, 16004 states have (on average 1.2819920019995001) internal successors, (20517), 16501 states have internal predecessors, (20517), 6360 states have call successors, (6360), 1061 states have call predecessors, (6360), 1072 states have return successors, (6638), 6166 states have call predecessors, (6638), 6357 states have call successors, (6638) [2021-11-17 11:30:36,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23439 states to 23439 states and 33515 transitions. [2021-11-17 11:30:36,133 INFO L78 Accepts]: Start accepts. Automaton has 23439 states and 33515 transitions. Word has length 205 [2021-11-17 11:30:36,134 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:30:36,135 INFO L470 AbstractCegarLoop]: Abstraction has 23439 states and 33515 transitions. [2021-11-17 11:30:36,135 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 8.333333333333334) internal successors, (50), 5 states have internal predecessors, (50), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:30:36,135 INFO L276 IsEmpty]: Start isEmpty. Operand 23439 states and 33515 transitions. [2021-11-17 11:30:36,139 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2021-11-17 11:30:36,139 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:30:36,139 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:30:36,140 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-11-17 11:30:36,140 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:30:36,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:30:36,140 INFO L85 PathProgramCache]: Analyzing trace with hash -287604417, now seen corresponding path program 1 times [2021-11-17 11:30:36,140 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:30:36,141 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825122725] [2021-11-17 11:30:36,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:30:36,141 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:30:36,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:30:36,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,698 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,702 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:30:36,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,708 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,713 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:30:36,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,720 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,724 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:30:36,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,735 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:30:36,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,746 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:30:36,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,757 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:30:36,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:30:36,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:30:36,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:30:36,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,797 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:30:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,812 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:30:36,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,819 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,824 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:30:36,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,832 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:30:36,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,844 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:30:36,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:30:36,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 11:30:36,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2021-11-17 11:30:36,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:30:36,874 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 11:30:36,875 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:30:36,875 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825122725] [2021-11-17 11:30:36,875 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825122725] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:30:36,875 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:30:36,875 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:30:36,875 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1810295128] [2021-11-17 11:30:36,876 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:30:36,876 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:30:36,876 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:30:36,876 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:30:36,877 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:30:36,877 INFO L87 Difference]: Start difference. First operand 23439 states and 33515 transitions. Second operand has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:30:38,990 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:30:41,397 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.40s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-11-17 11:30:59,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-11-17 11:30:59,854 INFO L93 Difference]: Finished difference Result 68669 states and 98335 transitions. [2021-11-17 11:30:59,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-11-17 11:30:59,856 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) Word has length 207 [2021-11-17 11:30:59,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-11-17 11:31:00,119 INFO L225 Difference]: With dead ends: 68669 [2021-11-17 11:31:00,119 INFO L226 Difference]: Without dead ends: 45265 [2021-11-17 11:31:00,242 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-11-17 11:31:00,243 INFO L933 BasicCegarLoop]: 5683 mSDtfsCounter, 4983 mSDsluCounter, 5054 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 2424 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 19.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5744 SdHoareTripleChecker+Valid, 10737 SdHoareTripleChecker+Invalid, 5653 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 2424 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.5s IncrementalHoareTripleChecker+Time [2021-11-17 11:31:00,243 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5744 Valid, 10737 Invalid, 5653 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [2424 Valid, 3227 Invalid, 2 Unknown, 0 Unchecked, 21.5s Time] [2021-11-17 11:31:00,289 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 45265 states. [2021-11-17 11:31:01,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 45265 to 43613. [2021-11-17 11:31:01,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 43613 states, 29663 states have (on average 1.2775511580082932) internal successors, (37896), 30623 states have internal predecessors, (37896), 11881 states have call successors, (11881), 2059 states have call predecessors, (11881), 2066 states have return successors, (12192), 11492 states have call predecessors, (12192), 11878 states have call successors, (12192) [2021-11-17 11:31:01,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43613 states to 43613 states and 61969 transitions. [2021-11-17 11:31:01,906 INFO L78 Accepts]: Start accepts. Automaton has 43613 states and 61969 transitions. Word has length 207 [2021-11-17 11:31:01,906 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-11-17 11:31:01,906 INFO L470 AbstractCegarLoop]: Abstraction has 43613 states and 61969 transitions. [2021-11-17 11:31:01,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 13.0) internal successors, (52), 3 states have internal predecessors, (52), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:31:01,907 INFO L276 IsEmpty]: Start isEmpty. Operand 43613 states and 61969 transitions. [2021-11-17 11:31:01,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 215 [2021-11-17 11:31:01,909 INFO L506 BasicCegarLoop]: Found error trace [2021-11-17 11:31:01,910 INFO L514 BasicCegarLoop]: trace histogram [16, 16, 15, 15, 15, 15, 15, 15, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-11-17 11:31:01,910 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-11-17 11:31:01,910 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_spinlock__one_thread_double_unlockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_spinlock__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-11-17 11:31:01,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-11-17 11:31:01,911 INFO L85 PathProgramCache]: Analyzing trace with hash -214751430, now seen corresponding path program 1 times [2021-11-17 11:31:01,911 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-11-17 11:31:01,911 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1421773735] [2021-11-17 11:31:01,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-11-17 11:31:01,911 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-11-17 11:31:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,404 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-11-17 11:31:02,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,414 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-11-17 11:31:02,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,420 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,424 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-11-17 11:31:02,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,429 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,433 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-11-17 11:31:02,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,439 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,444 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-11-17 11:31:02,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,450 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,455 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-11-17 11:31:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,463 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,467 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-11-17 11:31:02,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,473 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,478 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-11-17 11:31:02,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,485 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,489 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-11-17 11:31:02,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-11-17 11:31:02,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,508 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-11-17 11:31:02,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,519 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-11-17 11:31:02,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,547 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-11-17 11:31:02,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,557 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,562 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-11-17 11:31:02,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,574 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-11-17 11:31:02,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,582 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-11-17 11:31:02,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,587 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2021-11-17 11:31:02,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,595 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2021-11-17 11:31:02,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-11-17 11:31:02,602 INFO L134 CoverageAnalysis]: Checked inductivity of 990 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 990 trivial. 0 not checked. [2021-11-17 11:31:02,603 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-11-17 11:31:02,603 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1421773735] [2021-11-17 11:31:02,603 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1421773735] provided 1 perfect and 0 imperfect interpolant sequences [2021-11-17 11:31:02,603 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-11-17 11:31:02,603 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-11-17 11:31:02,603 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1450290766] [2021-11-17 11:31:02,604 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-11-17 11:31:02,604 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-11-17 11:31:02,604 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-11-17 11:31:02,604 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-11-17 11:31:02,605 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-11-17 11:31:02,605 INFO L87 Difference]: Start difference. First operand 43613 states and 61969 transitions. Second operand has 4 states, 4 states have (on average 15.0) internal successors, (60), 3 states have internal predecessors, (60), 3 states have call successors, (22), 3 states have call predecessors, (22), 1 states have return successors, (18), 3 states have call predecessors, (18), 3 states have call successors, (18) [2021-11-17 11:31:04,721 WARN L515 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.11s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] Killed by 15