./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 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-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.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 abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:46:16,088 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:46:16,090 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:46:16,123 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:46:16,123 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:46:16,124 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:46:16,125 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:46:16,130 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:46:16,132 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:46:16,132 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:46:16,133 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:46:16,134 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:46:16,134 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:46:16,135 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:46:16,135 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:46:16,136 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:46:16,137 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:46:16,137 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:46:16,138 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:46:16,139 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:46:16,140 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:46:16,141 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:46:16,142 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:46:16,142 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:46:16,144 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:46:16,144 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:46:16,145 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:46:16,145 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:46:16,146 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:46:16,146 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:46:16,147 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:46:16,147 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:46:16,148 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:46:16,148 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:46:16,149 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:46:16,149 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:46:16,150 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:46:16,150 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:46:16,150 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:46:16,151 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:46:16,151 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:46:16,152 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:46:16,169 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:46:16,172 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:46:16,174 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:46:16,174 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:46:16,174 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:46:16,175 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:46:16,175 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:46:16,175 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:46:16,175 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:46:16,176 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:46:16,176 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:46:16,176 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:46:16,177 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:46:16,177 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:46:16,177 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:46:16,177 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:46:16,177 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:46:16,178 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:46:16,178 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:46:16,178 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:46:16,178 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:46:16,178 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:46:16,178 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:46:16,178 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:46:16,179 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:46:16,180 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:46:16,181 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> abfdd6ea704cd13da9f6c4fa68989a6001819ce06b341c8a00315bc983ef4819 [2021-12-22 15:46:16,366 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:46:16,386 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:46:16,388 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:46:16,389 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:46:16,392 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:46:16,393 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:46:16,458 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085166ab/c1272a57b93a44aa9f29b3b8b0b0acd5/FLAG352af433d [2021-12-22 15:46:17,085 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:46:17,086 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:46:17,130 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085166ab/c1272a57b93a44aa9f29b3b8b0b0acd5/FLAG352af433d [2021-12-22 15:46:17,496 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9085166ab/c1272a57b93a44aa9f29b3b8b0b0acd5 [2021-12-22 15:46:17,498 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:46:17,499 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:46:17,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:46:17,503 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:46:17,506 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:46:17,506 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:46:17" (1/1) ... [2021-12-22 15:46:17,507 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@44b47e9f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:17, skipping insertion in model container [2021-12-22 15:46:17,507 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:46:17" (1/1) ... [2021-12-22 15:46:17,511 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:46:17,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:46:20,572 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-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-12-22 15:46:20,574 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-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-12-22 15:46:20,597 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:46:20,641 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:46:20,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[422956,422969] [2021-12-22 15:46:20,997 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i[423101,423114] [2021-12-22 15:46:21,002 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:46:21,192 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:46:21,193 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21 WrapperNode [2021-12-22 15:46:21,193 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:46:21,194 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:46:21,194 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:46:21,194 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:46:21,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,305 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,447 INFO L137 Inliner]: procedures = 556, calls = 2944, calls flagged for inlining = 291, calls inlined = 260, statements flattened = 7429 [2021-12-22 15:46:21,448 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:46:21,449 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:46:21,449 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:46:21,449 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:46:21,456 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,456 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,481 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,609 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,636 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,664 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,699 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:46:21,700 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:46:21,700 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:46:21,700 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:46:21,701 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (1/1) ... [2021-12-22 15:46:21,706 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:46:21,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:46:21,723 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:46:21,744 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:46:21,753 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_write [2021-12-22 15:46:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_write [2021-12-22 15:46:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:46:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:46:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_alloc_skb [2021-12-22 15:46:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_alloc_skb [2021-12-22 15:46:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:46:21,754 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:46:21,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_irqrestore_86 [2021-12-22 15:46:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_irqrestore_86 [2021-12-22 15:46:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:46:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:46:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:46:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:46:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure valid_dma_direction [2021-12-22 15:46:21,755 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_dma_direction [2021-12-22 15:46:21,755 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 15:46:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 15:46:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_interrupt [2021-12-22 15:46:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_interrupt [2021-12-22 15:46:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_name [2021-12-22 15:46:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_name [2021-12-22 15:46:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure pci_get_drvdata [2021-12-22 15:46:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_get_drvdata [2021-12-22 15:46:21,756 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:46:21,756 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:46:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-22 15:46:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-22 15:46:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-22 15:46:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-22 15:46:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:46:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:46:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure pci_unmap_single [2021-12-22 15:46:21,757 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_unmap_single [2021-12-22 15:46:21,757 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:46:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_bcr [2021-12-22 15:46:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_bcr [2021-12-22 15:46:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:46:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:46:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-22 15:46:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-22 15:46:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:46:21,758 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-12-22 15:46:21,758 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_pcnet32_cleanup_module_16_2 [2021-12-22 15:46:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:46:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:46:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_unregister_netdev [2021-12-22 15:46:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_unregister_netdev [2021-12-22 15:46:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:46:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:46:21,759 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:46:21,759 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_tx_ring [2021-12-22 15:46:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_tx_ring [2021-12-22 15:46:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:46:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure __phys_addr [2021-12-22 15:46:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure __phys_addr [2021-12-22 15:46:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_after_alloc [2021-12-22 15:46:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_after_alloc [2021-12-22 15:46:21,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:46:21,760 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:46:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_bcr [2021-12-22 15:46:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_bcr [2021-12-22 15:46:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_interrupt_context [2021-12-22 15:46:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_interrupt_context [2021-12-22 15:46:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:46:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:46:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_err_code [2021-12-22 15:46:21,761 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_err_code [2021-12-22 15:46:21,761 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 15:46:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 15:46:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_free_consistent [2021-12-22 15:46:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_free_consistent [2021-12-22 15:46:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure pci_disable_device [2021-12-22 15:46:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_disable_device [2021-12-22 15:46:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_start [2021-12-22 15:46:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_start [2021-12-22 15:46:21,762 INFO L130 BoogieDeclarations]: Found specification of procedure napi_enable [2021-12-22 15:46:21,762 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_enable [2021-12-22 15:46:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-22 15:46:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~~u16~0 [2021-12-22 15:46:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:46:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:46:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:46:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:46:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:46:21,763 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_calloc [2021-12-22 15:46:21,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_calloc [2021-12-22 15:46:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-22 15:46:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-22 15:46:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_2 [2021-12-22 15:46:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_2 [2021-12-22 15:46:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mod_timer [2021-12-22 15:46:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mod_timer [2021-12-22 15:46:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_open [2021-12-22 15:46:21,764 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_open [2021-12-22 15:46:21,764 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-22 15:46:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:46:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:46:21,765 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 15:46:21,765 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:46:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:46:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_reset [2021-12-22 15:46:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_reset [2021-12-22 15:46:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_exclusive_spin_is_locked [2021-12-22 15:46:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_exclusive_spin_is_locked [2021-12-22 15:46:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert [2021-12-22 15:46:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert [2021-12-22 15:46:21,766 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-22 15:46:21,766 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock_lock_of_pcnet32_private [2021-12-22 15:46:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 15:46:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 15:46:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_restart [2021-12-22 15:46:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_restart [2021-12-22 15:46:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_spin_lock [2021-12-22 15:46:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_spin_lock [2021-12-22 15:46:21,767 INFO L130 BoogieDeclarations]: Found specification of procedure napi_disable [2021-12-22 15:46:21,767 INFO L138 BoogieDeclarations]: Found implementation of procedure napi_disable [2021-12-22 15:46:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:46:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:46:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure skb_put [2021-12-22 15:46:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_put [2021-12-22 15:46:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_netdev [2021-12-22 15:46:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_netdev [2021-12-22 15:46:21,768 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_csr [2021-12-22 15:46:21,768 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_csr [2021-12-22 15:46:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~TO~VOID [2021-12-22 15:46:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~TO~VOID [2021-12-22 15:46:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 15:46:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 15:46:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_reset [2021-12-22 15:46:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_reset [2021-12-22 15:46:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure mdio_read [2021-12-22 15:46:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure mdio_read [2021-12-22 15:46:21,769 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:46:21,769 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 15:46:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:46:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_pm_resume [2021-12-22 15:46:21,770 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_pm_resume [2021-12-22 15:46:21,770 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_check_media [2021-12-22 15:46:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_check_media [2021-12-22 15:46:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_get_regs_len [2021-12-22 15:46:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_get_regs_len [2021-12-22 15:46:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_size_call_parameter [2021-12-22 15:46:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_to_process_context [2021-12-22 15:46:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_to_process_context [2021-12-22 15:46:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_poll_controller [2021-12-22 15:46:21,771 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_poll_controller [2021-12-22 15:46:21,771 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_free_ring [2021-12-22 15:46:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_free_ring [2021-12-22 15:46:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_map_single [2021-12-22 15:46:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_map_single [2021-12-22 15:46:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 15:46:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 15:46:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure kcalloc [2021-12-22 15:46:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure kcalloc [2021-12-22 15:46:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-22 15:46:21,772 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-22 15:46:21,772 INFO L130 BoogieDeclarations]: Found specification of procedure pci_alloc_consistent [2021-12-22 15:46:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_alloc_consistent [2021-12-22 15:46:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_gset [2021-12-22 15:46:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_gset [2021-12-22 15:46:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_purge_rx_ring [2021-12-22 15:46:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_purge_rx_ring [2021-12-22 15:46:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_write_csr [2021-12-22 15:46:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_write_csr [2021-12-22 15:46:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_tx_timeout [2021-12-22 15:46:21,773 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_tx_timeout [2021-12-22 15:46:21,773 INFO L130 BoogieDeclarations]: Found specification of procedure consume_skb [2021-12-22 15:46:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure consume_skb [2021-12-22 15:46:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:46:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_netif_stop [2021-12-22 15:46:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_netif_stop [2021-12-22 15:46:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-22 15:46:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-22 15:46:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:46:21,774 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-22 15:46:21,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock_lock_of_pcnet32_private [2021-12-22 15:46:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:46:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_csr [2021-12-22 15:46:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_csr [2021-12-22 15:46:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_set_multicast_list [2021-12-22 15:46:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_set_multicast_list [2021-12-22 15:46:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure outw [2021-12-22 15:46:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure outw [2021-12-22 15:46:21,775 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:46:21,775 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:46:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure mii_link_ok [2021-12-22 15:46:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_link_ok [2021-12-22 15:46:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:46:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:46:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_probe1 [2021-12-22 15:46:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_probe1 [2021-12-22 15:46:21,776 INFO L130 BoogieDeclarations]: Found specification of procedure outl [2021-12-22 15:46:21,776 INFO L138 BoogieDeclarations]: Found implementation of procedure outl [2021-12-22 15:46:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:46:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:46:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_remove_one [2021-12-22 15:46:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_remove_one [2021-12-22 15:46:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure mii_ethtool_sset [2021-12-22 15:46:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure mii_ethtool_sset [2021-12-22 15:46:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-22 15:46:21,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~X~~u16~0~TO~VOID [2021-12-22 15:46:21,777 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_dwio_read_bcr [2021-12-22 15:46:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_dwio_read_bcr [2021-12-22 15:46:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure skb_reserve [2021-12-22 15:46:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_reserve [2021-12-22 15:46:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_start_queue [2021-12-22 15:46:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_start_queue [2021-12-22 15:46:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-22 15:46:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-22 15:46:21,778 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_read_bcr [2021-12-22 15:46:21,778 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_read_bcr [2021-12-22 15:46:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 15:46:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 15:46:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_init_ring [2021-12-22 15:46:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_init_ring [2021-12-22 15:46:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_close [2021-12-22 15:46:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_close [2021-12-22 15:46:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 15:46:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 15:46:21,779 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 15:46:21,779 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_suspend [2021-12-22 15:46:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_suspend [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:46:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure test_and_set_bit [2021-12-22 15:46:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure test_and_set_bit [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure dev_kfree_skb_any [2021-12-22 15:46:21,780 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_kfree_skb_any [2021-12-22 15:46:21,780 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_wio_write_csr [2021-12-22 15:46:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_wio_write_csr [2021-12-22 15:46:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_load_multicast [2021-12-22 15:46:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_load_multicast [2021-12-22 15:46:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure netif_tx_stop_queue [2021-12-22 15:46:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_tx_stop_queue [2021-12-22 15:46:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure pcnet32_nway_reset [2021-12-22 15:46:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure pcnet32_nway_reset [2021-12-22 15:46:21,781 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:46:21,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:46:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure pci_set_power_state [2021-12-22 15:46:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure pci_set_power_state [2021-12-22 15:46:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-22 15:46:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-22 15:46:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure inb [2021-12-22 15:46:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inb [2021-12-22 15:46:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure inl [2021-12-22 15:46:21,782 INFO L138 BoogieDeclarations]: Found implementation of procedure inl [2021-12-22 15:46:21,782 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:46:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 15:46:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 15:46:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure inw [2021-12-22 15:46:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure inw [2021-12-22 15:46:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:46:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:46:21,783 INFO L130 BoogieDeclarations]: Found specification of procedure unregister_netdev [2021-12-22 15:46:21,783 INFO L138 BoogieDeclarations]: Found implementation of procedure unregister_netdev [2021-12-22 15:46:22,559 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:46:22,561 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:46:22,760 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:46:31,651 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:46:31,716 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:46:31,730 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:46:31,730 INFO L299 CfgBuilder]: Removed 7 assume(true) statements. [2021-12-22 15:46:31,733 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:31 BoogieIcfgContainer [2021-12-22 15:46:31,733 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:46:31,735 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:46:31,735 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:46:31,737 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:46:31,737 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:46:17" (1/3) ... [2021-12-22 15:46:31,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e18b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:31, skipping insertion in model container [2021-12-22 15:46:31,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:46:21" (2/3) ... [2021-12-22 15:46:31,738 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23e18b64 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:46:31, skipping insertion in model container [2021-12-22 15:46:31,738 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:46:31" (3/3) ... [2021-12-22 15:46:31,739 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-alloc-spinlock_drivers-net-ethernet-amd-pcnet32.cil.i [2021-12-22 15:46:31,743 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:46:31,743 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:46:31,792 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:46:31,806 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:46:31,807 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:46:31,873 INFO L276 IsEmpty]: Start isEmpty. Operand has 2696 states, 1873 states have (on average 1.3027229044313935) internal successors, (2440), 1913 states have internal predecessors, (2440), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) [2021-12-22 15:46:31,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2021-12-22 15:46:31,973 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:46:31,975 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:46:31,976 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:46:31,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:46:31,982 INFO L85 PathProgramCache]: Analyzing trace with hash 1321338375, now seen corresponding path program 1 times [2021-12-22 15:46:31,990 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:46:31,990 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1615256327] [2021-12-22 15:46:31,990 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:46:31,991 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:46:32,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:46:32,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,592 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:46:32,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,619 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,629 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:46:32,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,649 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:46:32,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,674 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:46:32,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,691 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:46:32,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,700 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,707 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:46:32,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,719 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,730 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:46:32,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:46:32,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,773 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:46:32,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,790 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:46:32,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,799 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,805 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:46:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:46:32,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 15:46:32,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,848 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-22 15:46:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 176 [2021-12-22 15:46:32,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 15:46:32,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,876 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:46:32,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 189 [2021-12-22 15:46:32,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,891 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 196 [2021-12-22 15:46:32,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:46:32,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,917 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,923 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 15:46:32,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,928 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2021-12-22 15:46:32,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,940 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 224 [2021-12-22 15:46:32,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:46:32,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-22 15:46:32,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,956 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2021-12-22 15:46:32,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:46:32,961 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-12-22 15:46:32,961 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:46:32,962 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1615256327] [2021-12-22 15:46:32,962 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1615256327] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:46:32,962 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:46:32,962 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:46:32,964 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [954375037] [2021-12-22 15:46:32,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:46:32,967 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:46:32,967 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:46:32,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:46:32,984 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:46:32,991 INFO L87 Difference]: Start difference. First operand has 2696 states, 1873 states have (on average 1.3027229044313935) internal successors, (2440), 1913 states have internal predecessors, (2440), 700 states have call successors, (700), 125 states have call predecessors, (700), 124 states have return successors, (692), 679 states have call predecessors, (692), 692 states have call successors, (692) Second operand has 6 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-22 15:46:41,060 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.74s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:46:42,279 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.22s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:46:49,772 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.78s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:46:51,148 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.38s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:46:53,199 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.17s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:46:59,751 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.33s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:47:04,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:47:04,327 INFO L93 Difference]: Finished difference Result 8348 states and 12113 transitions. [2021-12-22 15:47:04,328 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-12-22 15:47:04,329 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) Word has length 258 [2021-12-22 15:47:04,343 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:47:04,436 INFO L225 Difference]: With dead ends: 8348 [2021-12-22 15:47:04,443 INFO L226 Difference]: Without dead ends: 5488 [2021-12-22 15:47:04,472 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 104 GetRequests, 89 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 55 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2021-12-22 15:47:04,476 INFO L933 BasicCegarLoop]: 4084 mSDtfsCounter, 8174 mSDsluCounter, 6597 mSDsCounter, 0 mSdLazyCounter, 6385 mSolverCounterSat, 6232 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 28.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8632 SdHoareTripleChecker+Valid, 10681 SdHoareTripleChecker+Invalid, 12617 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 6232 IncrementalHoareTripleChecker+Valid, 6385 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 30.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:47:04,477 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [8632 Valid, 10681 Invalid, 12617 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [6232 Valid, 6385 Invalid, 0 Unknown, 0 Unchecked, 30.5s Time] [2021-12-22 15:47:04,539 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5488 states. [2021-12-22 15:47:04,789 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5488 to 4897. [2021-12-22 15:47:04,800 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4897 states, 3440 states have (on average 1.2930232558139534) internal successors, (4448), 3509 states have internal predecessors, (4448), 1223 states have call successors, (1223), 233 states have call predecessors, (1223), 233 states have return successors, (1223), 1199 states have call predecessors, (1223), 1223 states have call successors, (1223) [2021-12-22 15:47:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4897 states to 4897 states and 6894 transitions. [2021-12-22 15:47:04,835 INFO L78 Accepts]: Start accepts. Automaton has 4897 states and 6894 transitions. Word has length 258 [2021-12-22 15:47:04,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:47:04,840 INFO L470 AbstractCegarLoop]: Abstraction has 4897 states and 6894 transitions. [2021-12-22 15:47:04,841 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 5 states have (on average 17.6) internal successors, (88), 3 states have internal predecessors, (88), 4 states have call successors, (35), 5 states have call predecessors, (35), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-22 15:47:04,841 INFO L276 IsEmpty]: Start isEmpty. Operand 4897 states and 6894 transitions. [2021-12-22 15:47:04,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 269 [2021-12-22 15:47:04,853 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:47:04,853 INFO L514 BasicCegarLoop]: trace histogram [14, 14, 13, 13, 13, 13, 13, 13, 4, 4, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-22 15:47:04,854 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:47:04,854 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_check_alloc_flagsErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:47:04,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:47:04,854 INFO L85 PathProgramCache]: Analyzing trace with hash -2085434988, now seen corresponding path program 1 times [2021-12-22 15:47:04,855 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:47:04,855 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864602521] [2021-12-22 15:47:04,855 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:47:04,855 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:47:04,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,029 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:47:05,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,037 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,043 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:47:05,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,051 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:47:05,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,063 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,073 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:47:05,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,090 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:47:05,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,110 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:47:05,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:47:05,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:47:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,160 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:47:05,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,193 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:47:05,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:47:05,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2021-12-22 15:47:05,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2021-12-22 15:47:05,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,275 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2021-12-22 15:47:05,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 181 [2021-12-22 15:47:05,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2021-12-22 15:47:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,307 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2021-12-22 15:47:05,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,321 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:47:05,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,327 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-22 15:47:05,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2021-12-22 15:47:05,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 15:47:05,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,354 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2021-12-22 15:47:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,367 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-22 15:47:05,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,381 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2021-12-22 15:47:05,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,395 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:47:05,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,403 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2021-12-22 15:47:05,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,410 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 261 [2021-12-22 15:47:05,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:47:05,417 INFO L134 CoverageAnalysis]: Checked inductivity of 762 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 762 trivial. 0 not checked. [2021-12-22 15:47:05,417 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:47:05,418 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864602521] [2021-12-22 15:47:05,418 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864602521] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:47:05,418 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:47:05,418 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-22 15:47:05,418 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48673785] [2021-12-22 15:47:05,418 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:47:05,421 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-22 15:47:05,421 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:47:05,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-22 15:47:05,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-22 15:47:05,422 INFO L87 Difference]: Start difference. First operand 4897 states and 6894 transitions. Second operand has 6 states, 5 states have (on average 19.8) internal successors, (99), 3 states have internal predecessors, (99), 4 states have call successors, (34), 5 states have call predecessors, (34), 1 states have return successors, (29), 3 states have call predecessors, (29), 4 states have call successors, (29) [2021-12-22 15:47:09,783 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:47:17,657 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-22 15:47:18,982 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.32s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []