./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 ae007674 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-dev-ae00767 [2021-12-28 05:06:46,222 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 05:06:46,225 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 05:06:46,274 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 05:06:46,274 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 05:06:46,277 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 05:06:46,279 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 05:06:46,284 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 05:06:46,286 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 05:06:46,290 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 05:06:46,291 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 05:06:46,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 05:06:46,295 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 05:06:46,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 05:06:46,298 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 05:06:46,301 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 05:06:46,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 05:06:46,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 05:06:46,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 05:06:46,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 05:06:46,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 05:06:46,311 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 05:06:46,312 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 05:06:46,314 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 05:06:46,316 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 05:06:46,316 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 05:06:46,317 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 05:06:46,318 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 05:06:46,318 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 05:06:46,319 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 05:06:46,319 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 05:06:46,320 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 05:06:46,321 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 05:06:46,322 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 05:06:46,323 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 05:06:46,323 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 05:06:46,324 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 05:06:46,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 05:06:46,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 05:06:46,326 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 05:06:46,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 05:06:46,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 05:06:46,357 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 05:06:46,358 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 05:06:46,359 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 05:06:46,359 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 05:06:46,360 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 05:06:46,360 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 05:06:46,361 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 05:06:46,361 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 05:06:46,361 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 05:06:46,362 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 05:06:46,362 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 05:06:46,363 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 05:06:46,364 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 05:06:46,364 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 05:06:46,364 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 05:06:46,364 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 05:06:46,364 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:06:46,364 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 05:06:46,365 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 05:06:46,365 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 05:06:46,365 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 05:06:46,365 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 05:06:46,365 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 05:06:46,366 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 05:06:46,366 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 05:06:46,366 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 384d76f2b579c3776890746933030ac5fcfc9487f32fbc530ea50ee4dc8551b1 [2021-12-28 05:06:46,673 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 05:06:46,702 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 05:06:46,704 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 05:06:46,705 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 05:06:46,706 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 05:06:46,707 INFO L432 ainManager$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 [2021-12-28 05:06:46,762 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4342b64/6d882d4087f44448879ddc9963e952e9/FLAGadbb02f10 [2021-12-28 05:06:47,484 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 05:06:47,484 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 [2021-12-28 05:06:47,528 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4342b64/6d882d4087f44448879ddc9963e952e9/FLAGadbb02f10 [2021-12-28 05:06:47,541 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9f4342b64/6d882d4087f44448879ddc9963e952e9 [2021-12-28 05:06:47,543 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 05:06:47,544 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 05:06:47,545 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 05:06:47,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 05:06:47,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 05:06:47,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:06:47" (1/1) ... [2021-12-28 05:06:47,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@15d0ad1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:47, skipping insertion in model container [2021-12-28 05:06:47,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 05:06:47" (1/1) ... [2021-12-28 05:06:47,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 05:06:47,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 05:06:49,364 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] [2021-12-28 05:06:49,387 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:06:49,444 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 05:06:49,706 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] [2021-12-28 05:06:49,710 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 05:06:49,823 INFO L208 MainTranslator]: Completed translation [2021-12-28 05:06:49,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49 WrapperNode [2021-12-28 05:06:49,824 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 05:06:49,825 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 05:06:49,826 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 05:06:49,826 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 05:06:49,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:49,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,140 INFO L137 Inliner]: procedures = 306, calls = 1441, calls flagged for inlining = 179, calls inlined = 169, statements flattened = 3989 [2021-12-28 05:06:50,141 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 05:06:50,142 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 05:06:50,142 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 05:06:50,142 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 05:06:50,168 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,168 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,201 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,202 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,287 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,335 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,361 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 05:06:50,363 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 05:06:50,363 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 05:06:50,367 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 05:06:50,368 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (1/1) ... [2021-12-28 05:06:50,374 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 05:06:50,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 05:06:50,396 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) [2021-12-28 05:06:50,404 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 [2021-12-28 05:06:50,432 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 05:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 05:06:50,434 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 05:06:50,434 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 05:06:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-28 05:06:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-28 05:06:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-28 05:06:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-28 05:06:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-28 05:06:50,435 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-28 05:06:50,435 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 05:06:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 05:06:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-28 05:06:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-28 05:06:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-28 05:06:50,436 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-28 05:06:50,436 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-28 05:06:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-28 05:06:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 05:06:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 05:06:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-28 05:06:50,437 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-28 05:06:50,437 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-28 05:06:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-28 05:06:50,438 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-28 05:06:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-28 05:06:50,438 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-28 05:06:50,438 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-28 05:06:50,438 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 05:06:50,438 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-28 05:06:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-28 05:06:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 05:06:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-28 05:06:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-28 05:06:50,439 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-28 05:06:50,439 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-28 05:06:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-28 05:06:50,440 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-28 05:06:50,440 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-28 05:06:50,440 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-28 05:06:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-28 05:06:50,441 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-28 05:06:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-28 05:06:50,441 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-28 05:06:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 05:06:50,441 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 05:06:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-28 05:06:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-28 05:06:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-28 05:06:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-28 05:06:50,442 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 05:06:50,442 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 05:06:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-28 05:06:50,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-28 05:06:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-28 05:06:50,443 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-28 05:06:50,443 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-28 05:06:50,444 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-28 05:06:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-28 05:06:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-28 05:06:50,445 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-28 05:06:50,445 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-28 05:06:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-28 05:06:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-28 05:06:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-28 05:06:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-28 05:06:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-28 05:06:50,446 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-28 05:06:50,446 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 05:06:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-28 05:06:50,447 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-28 05:06:50,447 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-28 05:06:50,448 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-28 05:06:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-28 05:06:50,448 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-28 05:06:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 05:06:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-28 05:06:50,448 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-28 05:06:50,448 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-28 05:06:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-28 05:06:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-28 05:06:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-28 05:06:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-28 05:06:50,449 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-28 05:06:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 05:06:50,449 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-28 05:06:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-28 05:06:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-28 05:06:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-28 05:06:50,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-28 05:06:50,450 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-28 05:06:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-28 05:06:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-28 05:06:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-28 05:06:50,451 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-28 05:06:50,451 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-28 05:06:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-28 05:06:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-28 05:06:50,487 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-28 05:06:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 05:06:50,487 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-28 05:06:50,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-28 05:06:50,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:06:50,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-28 05:06:50,489 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-28 05:06:50,490 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-28 05:06:50,490 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-28 05:06:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-28 05:06:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-28 05:06:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-28 05:06:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-28 05:06:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-28 05:06:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 05:06:50,491 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-28 05:06:50,491 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-28 05:06:50,510 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-28 05:06:50,510 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-28 05:06:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-28 05:06:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-28 05:06:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-28 05:06:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-28 05:06:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 05:06:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 05:06:50,511 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 05:06:50,511 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 05:06:51,135 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 05:06:51,137 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 05:06:51,551 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 05:07:30,481 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-28 05:07:31,595 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 05:07:31,610 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 05:07:31,610 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-28 05:07:31,613 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:07:31 BoogieIcfgContainer [2021-12-28 05:07:31,614 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 05:07:31,615 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 05:07:31,615 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 05:07:31,618 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 05:07:31,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 05:06:47" (1/3) ... [2021-12-28 05:07:31,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b94bb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:07:31, skipping insertion in model container [2021-12-28 05:07:31,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 05:06:49" (2/3) ... [2021-12-28 05:07:31,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b94bb71 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 05:07:31, skipping insertion in model container [2021-12-28 05:07:31,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 05:07:31" (3/3) ... [2021-12-28 05:07:31,620 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-28 05:07:31,624 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 05:07:31,625 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 05:07:31,677 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 05:07:31,687 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 [2021-12-28 05:07:31,687 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 05:07:31,726 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) [2021-12-28 05:07:31,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-28 05:07:31,744 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:31,745 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] [2021-12-28 05:07:31,746 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] === [2021-12-28 05:07:31,750 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:31,750 INFO L85 PathProgramCache]: Analyzing trace with hash -623763730, now seen corresponding path program 1 times [2021-12-28 05:07:31,756 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:31,757 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236597984] [2021-12-28 05:07:31,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:31,758 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:32,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,718 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:32,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,731 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,740 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:32,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,748 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,754 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:32,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,762 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,768 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:32,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,780 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,787 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,793 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:32,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,806 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:32,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:32,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,825 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:32,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,842 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:32,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,849 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,854 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,861 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:32,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,877 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-28 05:07:32,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:32,885 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-28 05:07:32,886 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:32,886 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236597984] [2021-12-28 05:07:32,887 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236597984] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:32,887 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:32,887 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:07:32,888 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2069055257] [2021-12-28 05:07:32,889 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:32,892 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:07:32,893 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:32,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:07:32,916 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:07:32,927 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) [2021-12-28 05:07:35,021 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.08s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:07:37,364 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.34s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-28 05:07:46,804 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-28 05:07:46,805 INFO L93 Difference]: Finished difference Result 4210 states and 5985 transitions. [2021-12-28 05:07:46,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-28 05:07:46,807 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 [2021-12-28 05:07:46,808 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-28 05:07:46,848 INFO L225 Difference]: With dead ends: 4210 [2021-12-28 05:07:46,848 INFO L226 Difference]: Without dead ends: 2789 [2021-12-28 05:07:46,865 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 [2021-12-28 05:07:46,870 INFO L933 BasicCegarLoop]: 2170 mSDtfsCounter, 2275 mSDsluCounter, 2409 mSDsCounter, 0 mSdLazyCounter, 1212 mSolverCounterSat, 888 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2521 SdHoareTripleChecker+Valid, 4579 SdHoareTripleChecker+Invalid, 2102 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 888 IncrementalHoareTripleChecker+Valid, 1212 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.4s IncrementalHoareTripleChecker+Time [2021-12-28 05:07:46,872 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2521 Valid, 4579 Invalid, 2102 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [888 Valid, 1212 Invalid, 2 Unknown, 0 Unchecked, 13.4s Time] [2021-12-28 05:07:46,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2789 states. [2021-12-28 05:07:47,147 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2789 to 2727. [2021-12-28 05:07:47,154 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) [2021-12-28 05:07:47,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2727 states to 2727 states and 3779 transitions. [2021-12-28 05:07:47,177 INFO L78 Accepts]: Start accepts. Automaton has 2727 states and 3779 transitions. Word has length 151 [2021-12-28 05:07:47,179 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-28 05:07:47,179 INFO L470 AbstractCegarLoop]: Abstraction has 2727 states and 3779 transitions. [2021-12-28 05:07:47,179 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) [2021-12-28 05:07:47,180 INFO L276 IsEmpty]: Start isEmpty. Operand 2727 states and 3779 transitions. [2021-12-28 05:07:47,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2021-12-28 05:07:47,206 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 05:07:47,206 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] [2021-12-28 05:07:47,207 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-28 05:07:47,207 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] === [2021-12-28 05:07:47,208 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 05:07:47,208 INFO L85 PathProgramCache]: Analyzing trace with hash 39311551, now seen corresponding path program 1 times [2021-12-28 05:07:47,208 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 05:07:47,209 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077100529] [2021-12-28 05:07:47,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 05:07:47,209 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 05:07:47,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-28 05:07:47,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,760 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 05:07:47,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,777 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-28 05:07:47,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-28 05:07:47,789 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-28 05:07:47,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,811 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-28 05:07:47,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,817 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,821 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-28 05:07:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,836 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-28 05:07:47,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-28 05:07:47,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,858 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,862 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-28 05:07:47,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,868 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,872 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-28 05:07:47,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-28 05:07:47,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,893 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2021-12-28 05:07:47,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2021-12-28 05:07:47,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,907 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2021-12-28 05:07:47,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2021-12-28 05:07:47,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-28 05:07:47,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2021-12-28 05:07:47,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,934 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2021-12-28 05:07:47,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,944 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2021-12-28 05:07:47,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 05:07:47,953 INFO L134 CoverageAnalysis]: Checked inductivity of 681 backedges. 12 proven. 0 refuted. 0 times theorem prover too weak. 669 trivial. 0 not checked. [2021-12-28 05:07:47,953 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 05:07:47,953 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077100529] [2021-12-28 05:07:47,954 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077100529] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 05:07:47,954 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 05:07:47,954 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 05:07:47,954 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [788644654] [2021-12-28 05:07:47,954 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 05:07:47,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 05:07:47,956 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 05:07:47,956 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 05:07:47,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 05:07:47,957 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) [2021-12-28 05:07:50,007 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 [] [2021-12-28 05:07:52,298 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 []