./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version e19ca921 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_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 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:26:33,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:26:33,811 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:26:33,864 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:26:33,865 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:26:33,865 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:26:33,866 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:26:33,868 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:26:33,869 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:26:33,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:26:33,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:26:33,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:26:33,875 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:26:33,876 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:26:33,876 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:26:33,877 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:26:33,878 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:26:33,883 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:26:33,884 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:26:33,886 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:26:33,887 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:26:33,888 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:26:33,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:26:33,889 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:26:33,891 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:26:33,891 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:26:33,891 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:26:33,892 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:26:33,892 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:26:33,893 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:26:33,893 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:26:33,894 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:26:33,894 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:26:33,895 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:26:33,900 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:26:33,900 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:26:33,901 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:26:33,901 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:26:33,901 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:26:33,902 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:26:33,902 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:26:33,904 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:26:33,931 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:26:33,933 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:26:33,933 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:26:33,933 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:26:33,934 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:26:33,934 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:26:33,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:26:33,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:26:33,935 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:26:33,935 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:26:33,936 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:26:33,937 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:26:33,937 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:26:33,937 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:26:33,937 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:26:33,937 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:26:33,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:26:33,938 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:26:33,938 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:26:33,939 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:26:33,939 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:26:33,939 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 34736e16fed7ff8cc88604084fa777d707e75948c95ce657a43a86ad92782d71 [2021-12-22 15:26:34,137 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:26:34,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:26:34,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:26:34,158 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:26:34,159 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:26:34,160 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-22 15:26:34,227 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9714de6cf/efa8333c93ff402095bf0f8ff1663a59/FLAG783b18282 [2021-12-22 15:26:34,847 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:26:34,848 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-22 15:26:34,890 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9714de6cf/efa8333c93ff402095bf0f8ff1663a59/FLAG783b18282 [2021-12-22 15:26:35,004 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9714de6cf/efa8333c93ff402095bf0f8ff1663a59 [2021-12-22 15:26:35,007 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:26:35,008 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:26:35,009 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:26:35,010 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:26:35,017 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:26:35,018 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:35" (1/1) ... [2021-12-22 15:26:35,019 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@475c2f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:35, skipping insertion in model container [2021-12-22 15:26:35,019 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:26:35" (1/1) ... [2021-12-22 15:26:35,024 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:26:35,129 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:26:36,881 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2021-12-22 15:26:36,883 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2021-12-22 15:26:36,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2021-12-22 15:26:36,884 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2021-12-22 15:26:36,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:26:36,941 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:26:37,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278128,278141] [2021-12-22 15:26:37,168 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278294,278307] [2021-12-22 15:26:37,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278458,278471] [2021-12-22 15:26:37,169 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i[278623,278636] [2021-12-22 15:26:37,173 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:26:37,265 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:26:37,266 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37 WrapperNode [2021-12-22 15:26:37,266 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:26:37,267 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:26:37,267 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:26:37,267 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:26:37,273 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,328 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,465 INFO L137 Inliner]: procedures = 340, calls = 1497, calls flagged for inlining = 194, calls inlined = 177, statements flattened = 4027 [2021-12-22 15:26:37,466 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:26:37,467 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:26:37,467 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:26:37,467 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:26:37,473 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,474 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,498 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,498 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,598 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,619 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,637 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,664 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:26:37,665 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:26:37,665 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:26:37,666 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:26:37,667 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (1/1) ... [2021-12-22 15:26:37,672 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:26:37,679 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:26:37,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-22 15:26:37,701 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-22 15:26:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:26:37,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:26:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:26:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:26:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:26:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:26:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:26:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:26:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-22 15:26:37,723 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-22 15:26:37,723 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:26:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:26:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-22 15:26:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-22 15:26:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:26:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:26:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-22 15:26:37,724 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-22 15:26:37,724 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-22 15:26:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-22 15:26:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-22 15:26:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_EMGentry_exit_mcp251x_can_driver_exit_12_2 [2021-12-22 15:26:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-22 15:26:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-22 15:26:37,725 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-22 15:26:37,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-22 15:26:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:26:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:26:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:26:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:26:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:26:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:26:37,726 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-22 15:26:37,726 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-22 15:26:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-22 15:26:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-22 15:26:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:26:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:26:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-22 15:26:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exit [2021-12-22 15:26:37,727 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-22 15:26:37,727 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-22 15:26:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-22 15:26:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-22 15:26:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:26:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:26:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-22 15:26:37,728 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-22 15:26:37,728 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-22 15:26:37,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-22 15:26:37,729 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:26:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:26:37,730 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:26:37,730 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:26:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-22 15:26:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-22 15:26:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:26:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:26:37,731 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:26:37,731 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:26:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-22 15:26:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-22 15:26:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure clk_disable_unprepare [2021-12-22 15:26:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_disable_unprepare [2021-12-22 15:26:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:26:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:26:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 15:26:37,732 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 15:26:37,732 INFO L130 BoogieDeclarations]: Found specification of procedure clk_unprepare [2021-12-22 15:26:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure clk_unprepare [2021-12-22 15:26:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:26:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-22 15:26:37,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-22 15:26:37,733 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:26:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:26:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-22 15:26:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-22 15:26:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:26:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:26:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:26:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-22 15:26:37,734 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-22 15:26:37,734 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-22 15:26:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-22 15:26:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 15:26:37,735 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 15:26:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:26:37,735 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-22 15:26:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_lock [2021-12-22 15:26:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-22 15:26:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-22 15:26:37,736 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-22 15:26:37,736 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-22 15:26:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:26:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:26:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:26:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:26:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-22 15:26:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-22 15:26:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-22 15:26:37,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_kernel_locking_mutex__one_thread_double_unlock [2021-12-22 15:26:37,737 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-22 15:26:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-22 15:26:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:26:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-12-22 15:26:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_unlock_mcp_lock_of_mcp251x_priv [2021-12-22 15:26:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-22 15:26:37,738 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-22 15:26:37,738 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-22 15:26:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-22 15:26:37,739 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-12-22 15:26:37,739 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_mutex_lock_mcp_lock_of_mcp251x_priv [2021-12-22 15:26:37,740 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:26:37,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:26:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-22 15:26:37,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-22 15:26:37,742 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:26:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_1 [2021-12-22 15:26:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_1 [2021-12-22 15:26:37,743 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_0 [2021-12-22 15:26:37,743 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_0 [2021-12-22 15:26:37,744 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_3 [2021-12-22 15:26:37,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_3 [2021-12-22 15:26:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_switch_4 [2021-12-22 15:26:37,748 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_switch_4 [2021-12-22 15:26:37,748 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-22 15:26:37,749 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:26:37,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:26:37,749 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-22 15:26:37,749 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-22 15:26:37,749 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:26:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:26:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:26:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:26:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-22 15:26:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-22 15:26:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 15:26:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 15:26:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-22 15:26:37,750 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-22 15:26:37,750 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:26:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:26:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-22 15:26:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-22 15:26:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:26:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:26:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:26:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:26:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-22 15:26:37,751 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-22 15:26:37,751 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-22 15:26:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-22 15:26:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:26:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-22 15:26:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-22 15:26:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-22 15:26:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-22 15:26:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 15:26:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 15:26:37,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:26:37,752 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:26:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:26:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:26:37,753 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 15:26:37,753 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 15:26:38,289 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:26:38,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:26:38,733 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:27:17,609 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ULTIMATE.startFINAL: assume true; [2021-12-22 15:27:18,851 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:27:18,862 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:27:18,862 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:27:18,865 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:27:18 BoogieIcfgContainer [2021-12-22 15:27:18,865 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:27:18,866 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:27:18,866 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:27:18,869 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:27:18,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:26:35" (1/3) ... [2021-12-22 15:27:18,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c1aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:27:18, skipping insertion in model container [2021-12-22 15:27:18,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:26:37" (2/3) ... [2021-12-22 15:27:18,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@473c1aac and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:27:18, skipping insertion in model container [2021-12-22 15:27:18,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:27:18" (3/3) ... [2021-12-22 15:27:18,871 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_complex_emg_linux-kernel-locking-mutex_drivers-net-can-mcp251x.cil.i [2021-12-22 15:27:18,874 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:27:18,874 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 3 error locations. [2021-12-22 15:27:18,934 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:27:18,939 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-22 15:27:18,940 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-12-22 15:27:18,988 INFO L276 IsEmpty]: Start isEmpty. Operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) [2021-12-22 15:27:19,000 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2021-12-22 15:27:19,001 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:27:19,002 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] [2021-12-22 15:27:19,002 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:27:19,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:27:19,006 INFO L85 PathProgramCache]: Analyzing trace with hash -809802598, now seen corresponding path program 1 times [2021-12-22 15:27:19,011 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:27:19,012 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [754482310] [2021-12-22 15:27:19,012 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:27:19,012 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:27:19,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,788 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:27:19,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,801 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,809 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:27:19,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,815 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,820 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:27:19,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,826 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,831 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:27:19,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,837 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,843 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:27:19,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,850 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,859 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:27:19,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,867 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,873 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:27:19,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:27:19,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,914 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,921 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:27:19,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,929 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,942 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:27:19,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,951 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,957 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:27:19,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,977 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,984 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 15:27:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,991 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2021-12-22 15:27:19,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:19,999 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-22 15:27:19,999 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:27:19,999 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [754482310] [2021-12-22 15:27:20,000 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [754482310] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:27:20,000 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:27:20,000 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:27:20,001 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2039572660] [2021-12-22 15:27:20,002 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:27:20,005 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:27:20,005 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:27:20,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:27:20,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:27:20,028 INFO L87 Difference]: Start difference. First operand has 1470 states, 1032 states have (on average 1.2848837209302326) internal successors, (1326), 1055 states have internal predecessors, (1326), 359 states have call successors, (359), 77 states have call predecessors, (359), 76 states have return successors, (350), 344 states have call predecessors, (350), 350 states have call successors, (350) Second operand has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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) [2021-12-22 15:27:22,086 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 [] [2021-12-22 15:27:24,360 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 [] [2021-12-22 15:27:33,003 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:27:33,004 INFO L93 Difference]: Finished difference Result 4247 states and 6075 transitions. [2021-12-22 15:27:33,005 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-22 15:27:33,006 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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 149 [2021-12-22 15:27:33,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:27:33,047 INFO L225 Difference]: With dead ends: 4247 [2021-12-22 15:27:33,047 INFO L226 Difference]: Without dead ends: 2786 [2021-12-22 15:27:33,068 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 [2021-12-22 15:27:33,073 INFO L933 BasicCegarLoop]: 2224 mSDtfsCounter, 2267 mSDsluCounter, 2669 mSDsCounter, 0 mSdLazyCounter, 1013 mSolverCounterSat, 927 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 11.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2500 SdHoareTripleChecker+Valid, 4893 SdHoareTripleChecker+Invalid, 1942 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 927 IncrementalHoareTripleChecker+Valid, 1013 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 12.5s IncrementalHoareTripleChecker+Time [2021-12-22 15:27:33,074 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2500 Valid, 4893 Invalid, 1942 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [927 Valid, 1013 Invalid, 2 Unknown, 0 Unchecked, 12.5s Time] [2021-12-22 15:27:33,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2786 states. [2021-12-22 15:27:33,348 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2786 to 2723. [2021-12-22 15:27:33,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2723 states, 1926 states have (on average 1.2725856697819315) internal successors, (2451), 1973 states have internal predecessors, (2451), 645 states have call successors, (645), 149 states have call predecessors, (645), 149 states have return successors, (735), 623 states have call predecessors, (735), 641 states have call successors, (735) [2021-12-22 15:27:33,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2723 states to 2723 states and 3831 transitions. [2021-12-22 15:27:33,375 INFO L78 Accepts]: Start accepts. Automaton has 2723 states and 3831 transitions. Word has length 149 [2021-12-22 15:27:33,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:27:33,377 INFO L470 AbstractCegarLoop]: Abstraction has 2723 states and 3831 transitions. [2021-12-22 15:27:33,378 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 9.25) internal successors, (37), 3 states have internal predecessors, (37), 3 states have call successors, (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) [2021-12-22 15:27:33,378 INFO L276 IsEmpty]: Start isEmpty. Operand 2723 states and 3831 transitions. [2021-12-22 15:27:33,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2021-12-22 15:27:33,391 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:27:33,391 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] [2021-12-22 15:27:33,392 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:27:33,392 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_kernel_locking_mutex__one_thread_double_lockErr0ASSERT_VIOLATIONERROR_FUNCTION, ldv_assert_linux_kernel_locking_mutex__one_thread_locked_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION (and 1 more)] === [2021-12-22 15:27:33,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:27:33,392 INFO L85 PathProgramCache]: Analyzing trace with hash -692997161, now seen corresponding path program 1 times [2021-12-22 15:27:33,392 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:27:33,395 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [521348732] [2021-12-22 15:27:33,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:27:33,395 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:27:33,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:27:33,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 15:27:33,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,829 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,834 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2021-12-22 15:27:33,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,840 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,845 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2021-12-22 15:27:33,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,855 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,860 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-22 15:27:33,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,866 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,867 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,871 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 58 [2021-12-22 15:27:33,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,878 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2021-12-22 15:27:33,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,890 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 80 [2021-12-22 15:27:33,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,906 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,913 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2021-12-22 15:27:33,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,922 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,927 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-22 15:27:33,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,936 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,943 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2021-12-22 15:27:33,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,952 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:27:33,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,963 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 15:27:33,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,970 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2021-12-22 15:27:33,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:27:33,979 INFO L134 CoverageAnalysis]: Checked inductivity of 528 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 528 trivial. 0 not checked. [2021-12-22 15:27:33,979 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:27:33,979 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [521348732] [2021-12-22 15:27:33,980 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [521348732] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:27:33,980 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:27:33,980 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 15:27:33,980 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1769746943] [2021-12-22 15:27:33,980 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:27:33,982 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 15:27:33,983 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:27:33,983 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 15:27:33,983 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 15:27:33,983 INFO L87 Difference]: Start difference. First operand 2723 states and 3831 transitions. 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) [2021-12-22 15:27:36,022 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 [] [2021-12-22 15:27:38,296 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 []