./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.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 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:54:30,207 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:54:30,208 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:54:30,251 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:54:30,252 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:54:30,252 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:54:30,253 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:54:30,254 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:54:30,255 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:54:30,257 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:54:30,257 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:54:30,258 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:54:30,258 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:54:30,259 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:54:30,260 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:54:30,261 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:54:30,261 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:54:30,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:54:30,263 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:54:30,264 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:54:30,265 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:54:30,268 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:54:30,268 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:54:30,269 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:54:30,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:54:30,275 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:54:30,275 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:54:30,276 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:54:30,276 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:54:30,277 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:54:30,277 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:54:30,277 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:54:30,278 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:54:30,278 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:54:30,279 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:54:30,281 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:54:30,281 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:54:30,281 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:54:30,281 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:54:30,282 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:54:30,282 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:54:30,284 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:54:30,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:54:30,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:54:30,307 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:54:30,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:54:30,308 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:54:30,308 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:54:30,309 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:54:30,309 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:54:30,309 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:54:30,309 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:54:30,310 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:54:30,310 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:54:30,310 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:54:30,310 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:54:30,310 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:54:30,311 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:54:30,311 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:54:30,312 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:54:30,312 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:54:30,312 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:54:30,312 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:54:30,312 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:54:30,312 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:54:30,313 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:54:30,314 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:54:30,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:54:30,314 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 [2021-12-14 18:54:30,484 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:54:30,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:54:30,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:54:30,502 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:54:30,503 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:54:30,503 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-14 18:54:30,546 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d709a593/be141d6e0b9343e4b6752348c490f8e2/FLAG7cdbd24fa [2021-12-14 18:54:31,098 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:54:31,099 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-challenges/linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-14 18:54:31,123 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d709a593/be141d6e0b9343e4b6752348c490f8e2/FLAG7cdbd24fa [2021-12-14 18:54:31,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d709a593/be141d6e0b9343e4b6752348c490f8e2 [2021-12-14 18:54:31,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:54:31,294 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:54:31,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:54:31,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:54:31,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:54:31,300 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:54:31" (1/1) ... [2021-12-14 18:54:31,300 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@37340fed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:31, skipping insertion in model container [2021-12-14 18:54:31,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:54:31" (1/1) ... [2021-12-14 18:54:31,305 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:54:31,429 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:54:32,564 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-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2021-12-14 18:54:32,576 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:54:32,611 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:54:32,852 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-drivers-clk1_drivers-net-can-mcp251x.cil.i[269359,269372] [2021-12-14 18:54:32,860 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:54:32,963 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:54:32,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32 WrapperNode [2021-12-14 18:54:32,964 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:54:32,965 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:54:32,965 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:54:32,966 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:54:32,970 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,046 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,163 INFO L137 Inliner]: procedures = 306, calls = 1441, calls flagged for inlining = 179, calls inlined = 169, statements flattened = 3989 [2021-12-14 18:54:33,163 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:54:33,164 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:54:33,164 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:54:33,164 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:54:33,170 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,191 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,192 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,254 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,265 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,294 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,340 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:54:33,340 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:54:33,340 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:54:33,340 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:54:33,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (1/1) ... [2021-12-14 18:54:33,364 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:54:33,373 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:54:33,383 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:54:33,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:54:33,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:54:33,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:54:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:54:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-14 18:54:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-14 18:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:54:33,449 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:54:33,449 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-14 18:54:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-14 18:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:54:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-14 18:54:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-14 18:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:54:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:54:33,450 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-14 18:54:33,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-14 18:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-14 18:54:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-14 18:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-14 18:54:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-14 18:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-14 18:54:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-14 18:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:54:33,451 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:54:33,451 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:54:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-14 18:54:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-14 18:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-14 18:54:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-14 18:54:33,452 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:54:33,452 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-14 18:54:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-14 18:54:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-14 18:54:33,453 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-14 18:54:33,453 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-14 18:54:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-14 18:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 18:54:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 18:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:54:33,454 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:54:33,454 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:54:33,455 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:54:33,455 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-14 18:54:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-14 18:54:33,456 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:54:33,456 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:54:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:54:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:54:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-14 18:54:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-14 18:54:33,457 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-14 18:54:33,457 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-14 18:54:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-14 18:54:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-14 18:54:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:54:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-14 18:54:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-14 18:54:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:54:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:54:33,458 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-14 18:54:33,458 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-14 18:54:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:54:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:54:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:54:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-14 18:54:33,459 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-14 18:54:33,459 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-14 18:54:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-14 18:54:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:54:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:54:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:54:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-14 18:54:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-14 18:54:33,460 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-14 18:54:33,460 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-14 18:54:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:54:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:54:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-14 18:54:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-14 18:54:33,461 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:54:33,461 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:54:33,462 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-14 18:54:33,462 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-14 18:54:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-14 18:54:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-14 18:54:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:54:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-14 18:54:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-14 18:54:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-14 18:54:33,463 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-14 18:54:33,463 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:54:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:54:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-14 18:54:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-14 18:54:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:54:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-14 18:54:33,464 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-14 18:54:33,464 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-14 18:54:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-14 18:54:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-14 18:54:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-14 18:54:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-14 18:54:33,465 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-14 18:54:33,465 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-14 18:54:33,466 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-14 18:54:33,467 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:54:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:54:33,468 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:54:33,468 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:54:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:54:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:54:33,469 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-14 18:54:33,469 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-14 18:54:33,470 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:54:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:54:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:54:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:54:33,474 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-14 18:54:33,474 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:54:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-14 18:54:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:54:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-14 18:54:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:54:33,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:54:33,475 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:54:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-14 18:54:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-14 18:54:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-14 18:54:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-14 18:54:33,476 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-14 18:54:33,476 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-14 18:54:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-14 18:54:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:54:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:54:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:54:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:54:33,477 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:54:33,477 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:54:33,988 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:54:33,990 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:54:34,275 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:55:10,806 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-14 18:55:11,605 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:55:11,615 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:55:11,616 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:55:11,618 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:55:11 BoogieIcfgContainer [2021-12-14 18:55:11,618 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:55:11,619 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:55:11,619 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:55:11,621 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:55:11,621 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:54:31" (1/3) ... [2021-12-14 18:55:11,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437e9f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:55:11, skipping insertion in model container [2021-12-14 18:55:11,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:54:32" (2/3) ... [2021-12-14 18:55:11,622 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@437e9f61 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:55:11, skipping insertion in model container [2021-12-14 18:55:11,622 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:55:11" (3/3) ... [2021-12-14 18:55:11,623 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-14 18:55:11,626 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:55:11,626 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:55:11,657 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:55:11,661 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:55:11,661 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:55:11,685 INFO L276 IsEmpty]: Start isEmpty. Operand has 1435 states, 1010 states have (on average 1.2861386138613862) internal successors, (1299), 1030 states have internal predecessors, (1299), 352 states have call successors, (352), 73 states have call predecessors, (352), 72 states have return successors, (343), 336 states have call predecessors, (343), 343 states have call successors, (343) [2021-12-14 18:55:11,697 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-14 18:55:11,697 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:55:11,698 INFO L514 BasicCegarLoop]: trace histogram [12, 12, 11, 11, 11, 11, 11, 11, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:55:11,698 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:55:11,701 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:55:11,701 INFO L85 PathProgramCache]: Analyzing trace with hash -623763730, now seen corresponding path program 1 times [2021-12-14 18:55:11,707 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:55:11,707 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1348586789] [2021-12-14 18:55:11,707 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:55:11,708 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:55:12,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,564 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:55:12,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,576 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,585 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:55:12,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,594 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:55:12,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,636 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:55:12,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,645 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,651 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:55:12,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,664 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:55:12,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:55:12,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,696 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:55:12,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,710 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,717 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:55:12,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,732 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,741 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:55:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,749 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:55:12,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,761 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:12,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:55:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,774 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-14 18:55:12,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:12,784 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-14 18:55:12,786 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:55:12,786 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1348586789] [2021-12-14 18:55:12,787 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1348586789] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:55:12,787 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:55:12,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:55:12,789 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050676577] [2021-12-14 18:55:12,789 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:55:12,793 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:55:12,795 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:55:12,819 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:55:12,819 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:55:12,824 INFO L87 Difference]: Start difference. First operand has 1435 states, 1010 states have (on average 1.2861386138613862) internal successors, (1299), 1030 states have internal predecessors, (1299), 352 states have call successors, (352), 73 states have call predecessors, (352), 72 states have return successors, (343), 336 states have call predecessors, (343), 343 states have call successors, (343) Second operand has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 18:55:14,886 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:55:17,163 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.27s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:55:24,469 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:55:24,469 INFO L93 Difference]: Finished difference Result 4210 states and 5985 transitions. [2021-12-14 18:55:24,474 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:55:24,475 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) Word has length 151 [2021-12-14 18:55:24,475 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:55:24,518 INFO L225 Difference]: With dead ends: 4210 [2021-12-14 18:55:24,518 INFO L226 Difference]: Without dead ends: 2789 [2021-12-14 18:55:24,535 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:55:24,539 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 2275 mSDsluCounter, 2609 mSDsCounter, 0 mSdLazyCounter, 1012 mSolverCounterSat, 888 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 10.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 4779 SdHoareTripleChecker+Invalid, 1902 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 888 IncrementalHoareTripleChecker+Valid, 1012 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 11.2s IncrementalHoareTripleChecker+Time [2021-12-14 18:55:24,540 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2521 Valid, 4779 Invalid, 1902 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [888 Valid, 1012 Invalid, 2 Unknown, 0 Unchecked, 11.2s Time] [2021-12-14 18:55:24,556 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2021-12-14 18:55:24,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2727. [2021-12-14 18:55:24,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2727 states, 1935 states have (on average 1.2821705426356589) internal successors, (2481), 1976 states have internal predecessors, (2481), 651 states have call successors, (651), 141 states have call predecessors, (651), 140 states have return successors, (647), 633 states have call predecessors, (647), 647 states have call successors, (647) [2021-12-14 18:55:24,727 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3779 transitions. [2021-12-14 18:55:24,730 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3779 transitions. Word has length 151 [2021-12-14 18:55:24,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:55:24,731 INFO L470 AbstractCegarLoop]: Abstraction has 2727 states and 3779 transitions. [2021-12-14 18:55:24,731 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.75) internal successors, (39), 3 states have internal predecessors, (39), 3 states have call successors, (16), 3 states have call predecessors, (16), 1 states have return successors, (14), 3 states have call predecessors, (14), 3 states have call successors, (14) [2021-12-14 18:55:24,732 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3779 transitions. [2021-12-14 18:55:24,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-14 18:55:24,749 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:55:24,749 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:55:24,750 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:55:24,751 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:55:24,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:55:24,751 INFO L85 PathProgramCache]: Analyzing trace with hash 39311551, now seen corresponding path program 1 times [2021-12-14 18:55:24,751 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:55:24,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1687276449] [2021-12-14 18:55:24,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:55:24,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:55:24,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:55:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,138 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:55:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,147 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:55:25,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:55:25,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,164 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,167 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:55:25,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,176 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:55:25,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:55:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:55:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,205 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:55:25,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,209 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,217 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:55:25,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,225 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:55:25,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,230 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,233 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:55:25,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:55:25,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:55:25,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,248 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:55:25,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 18:55:25,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:25,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,263 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:55:25,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,270 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-14 18:55:25,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 18:55:25,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:25,284 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-14 18:55:25,284 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:55:25,286 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1687276449] [2021-12-14 18:55:25,286 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1687276449] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:55:25,286 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:55:25,286 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 18:55:25,288 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1329622700] [2021-12-14 18:55:25,288 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:55:25,290 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 18:55:25,290 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:55:25,290 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 18:55:25,290 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 18:55:25,290 INFO L87 Difference]: Start difference. First operand 2727 states and 3779 transitions. Second operand has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 18:55:27,330 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:55:29,625 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.29s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:55:38,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:55:38,263 INFO L93 Difference]: Finished difference Result 5531 states and 7760 transitions. [2021-12-14 18:55:38,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-14 18:55:38,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) Word has length 209 [2021-12-14 18:55:38,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:55:38,283 INFO L225 Difference]: With dead ends: 5531 [2021-12-14 18:55:38,283 INFO L226 Difference]: Without dead ends: 4132 [2021-12-14 18:55:38,289 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 64 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:55:38,290 INFO L933 BasicCegarLoop]: 3631 mSDtfsCounter, 1902 mSDsluCounter, 3476 mSDsCounter, 0 mSdLazyCounter, 1033 mSolverCounterSat, 558 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2142 SdHoareTripleChecker+Valid, 7107 SdHoareTripleChecker+Invalid, 1593 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 558 IncrementalHoareTripleChecker+Valid, 1033 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.6s IncrementalHoareTripleChecker+Time [2021-12-14 18:55:38,290 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2142 Valid, 7107 Invalid, 1593 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [558 Valid, 1033 Invalid, 2 Unknown, 0 Unchecked, 12.6s Time] [2021-12-14 18:55:38,293 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4132 states. [2021-12-14 18:55:38,373 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4132 to 4039. [2021-12-14 18:55:38,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4039 states, 2870 states have (on average 1.2829268292682927) internal successors, (3682), 2930 states have internal predecessors, (3682), 959 states have call successors, (959), 210 states have call predecessors, (959), 209 states have return successors, (955), 934 states have call predecessors, (955), 955 states have call successors, (955) [2021-12-14 18:55:38,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4039 states to 4039 states and 5596 transitions. [2021-12-14 18:55:38,392 INFO L78 Accepts]: Start accepts. Automaton has 4039 states and 5596 transitions. Word has length 209 [2021-12-14 18:55:38,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:55:38,393 INFO L470 AbstractCegarLoop]: Abstraction has 4039 states and 5596 transitions. [2021-12-14 18:55:38,393 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.0) internal successors, (68), 3 states have internal predecessors, (68), 3 states have call successors, (23), 3 states have call predecessors, (23), 1 states have return successors, (21), 3 states have call predecessors, (21), 3 states have call successors, (21) [2021-12-14 18:55:38,393 INFO L276 IsEmpty]: Start isEmpty. Operand 4039 states and 5596 transitions. [2021-12-14 18:55:38,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-14 18:55:38,399 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:55:38,399 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 11, 11, 11, 11, 11, 11, 4, 4, 4, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:55:38,399 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:55:38,400 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:55:38,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:55:38,400 INFO L85 PathProgramCache]: Analyzing trace with hash 1962539585, now seen corresponding path program 1 times [2021-12-14 18:55:38,400 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:55:38,400 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1541240770] [2021-12-14 18:55:38,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:55:38,401 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:55:38,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,863 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:55:38,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 18:55:38,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,883 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-14 18:55:38,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-14 18:55:38,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,905 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,908 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-14 18:55:38,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,919 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-14 18:55:38,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,926 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-14 18:55:38,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,931 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-14 18:55:38,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,938 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-14 18:55:38,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,947 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,949 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-14 18:55:38,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,954 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-14 18:55:38,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,965 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:55:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,972 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-14 18:55:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-14 18:55:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,982 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-14 18:55:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,986 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-14 18:55:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:55:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-14 18:55:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:38,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-14 18:55:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:39,003 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-14 18:55:39,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:55:39,009 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 681 trivial. 0 not checked. [2021-12-14 18:55:39,009 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:55:39,009 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1541240770] [2021-12-14 18:55:39,009 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1541240770] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:55:39,009 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:55:39,009 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-14 18:55:39,010 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [10322415] [2021-12-14 18:55:39,010 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:55:39,011 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-14 18:55:39,011 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:55:39,011 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-14 18:55:39,011 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-14 18:55:39,012 INFO L87 Difference]: Start difference. First operand 4039 states and 5596 transitions. Second operand has 6 states, 6 states have (on average 9.666666666666666) internal successors, (58), 4 states have internal predecessors, (58), 2 states have call successors, (22), 4 states have call predecessors, (22), 1 states have return successors, (20), 2 states have call predecessors, (20), 2 states have call successors, (20) [2021-12-14 18:55:41,072 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []