./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_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_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 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c --- Real Ultimate output --- This is Ultimate 0.2.2-dev-e19ca92 [2021-12-22 15:39:01,430 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 15:39:01,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 15:39:01,464 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 15:39:01,467 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 15:39:01,470 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 15:39:01,472 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 15:39:01,478 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 15:39:01,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 15:39:01,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 15:39:01,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 15:39:01,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 15:39:01,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 15:39:01,487 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 15:39:01,488 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 15:39:01,489 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 15:39:01,491 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 15:39:01,496 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 15:39:01,497 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 15:39:01,501 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 15:39:01,503 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 15:39:01,504 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 15:39:01,505 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 15:39:01,506 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 15:39:01,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 15:39:01,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 15:39:01,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 15:39:01,509 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 15:39:01,510 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 15:39:01,510 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 15:39:01,511 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 15:39:01,511 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 15:39:01,512 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 15:39:01,513 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 15:39:01,513 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 15:39:01,514 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 15:39:01,514 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 15:39:01,515 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 15:39:01,515 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 15:39:01,516 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 15:39:01,516 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 15:39:01,524 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 15:39:01,562 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 15:39:01,562 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 15:39:01,563 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 15:39:01,563 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 15:39:01,564 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 15:39:01,564 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 15:39:01,564 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 15:39:01,565 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 15:39:01,565 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 15:39:01,565 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 15:39:01,566 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 15:39:01,566 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 15:39:01,566 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 15:39:01,567 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 15:39:01,567 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 15:39:01,567 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 15:39:01,567 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 15:39:01,567 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 15:39:01,568 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 15:39:01,568 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 15:39:01,568 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 15:39:01,568 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:39:01,568 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 15:39:01,569 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 15:39:01,569 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 15:39:01,569 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 15:39:01,569 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 15:39:01,569 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 15:39:01,570 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 15:39:01,570 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 15:39:01,570 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 15:39:01,570 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c [2021-12-22 15:39:01,809 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 15:39:01,834 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 15:39:01,836 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 15:39:01,837 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 15:39:01,838 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 15:39:01,839 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-22 15:39:01,891 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970f8e87b/e93043d86df74b169dab91ae863de7f0/FLAG40baa2ec2 [2021-12-22 15:39:02,652 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 15:39:02,653 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.14/linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-22 15:39:02,695 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970f8e87b/e93043d86df74b169dab91ae863de7f0/FLAG40baa2ec2 [2021-12-22 15:39:02,876 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/970f8e87b/e93043d86df74b169dab91ae863de7f0 [2021-12-22 15:39:02,878 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 15:39:02,880 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 15:39:02,882 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 15:39:02,882 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 15:39:02,885 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 15:39:02,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:39:02" (1/1) ... [2021-12-22 15:39:02,886 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1696e68a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:02, skipping insertion in model container [2021-12-22 15:39:02,887 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 03:39:02" (1/1) ... [2021-12-22 15:39:02,892 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 15:39:03,000 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 15:39:04,598 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_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2021-12-22 15:39:04,625 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:39:04,670 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 15:39:04,956 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_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i[256140,256153] [2021-12-22 15:39:04,961 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 15:39:05,081 INFO L208 MainTranslator]: Completed translation [2021-12-22 15:39:05,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05 WrapperNode [2021-12-22 15:39:05,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 15:39:05,083 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 15:39:05,083 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 15:39:05,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 15:39:05,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,175 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,291 INFO L137 Inliner]: procedures = 287, calls = 1398, calls flagged for inlining = 167, calls inlined = 163, statements flattened = 3687 [2021-12-22 15:39:05,292 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 15:39:05,293 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 15:39:05,293 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 15:39:05,293 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 15:39:05,301 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,320 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,321 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,495 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,512 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,533 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 15:39:05,534 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 15:39:05,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 15:39:05,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 15:39:05,536 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (1/1) ... [2021-12-22 15:39:05,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 15:39:05,551 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 15:39:05,564 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 15:39:05,588 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 15:39:05,599 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 15:39:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 15:39:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 15:39:05,600 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 15:39:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-22 15:39:05,600 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-22 15:39:05,600 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-22 15:39:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-22 15:39:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-22 15:39:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-22 15:39:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 15:39:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 15:39:05,601 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-22 15:39:05,601 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-22 15:39:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-22 15:39:05,602 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-22 15:39:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-22 15:39:05,602 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-22 15:39:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 15:39:05,602 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 15:39:05,602 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-22 15:39:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-22 15:39:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-22 15:39:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-22 15:39:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-22 15:39:05,603 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-22 15:39:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 15:39:05,603 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-22 15:39:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-22 15:39:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 15:39:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-22 15:39:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-22 15:39:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-22 15:39:05,604 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-22 15:39:05,604 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-22 15:39:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-22 15:39:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-22 15:39:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-22 15:39:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-22 15:39:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-22 15:39:05,605 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-22 15:39:05,605 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-22 15:39:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 15:39:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 15:39:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-22 15:39:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-22 15:39:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-22 15:39:05,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-22 15:39:05,606 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 15:39:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 15:39:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-22 15:39:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-22 15:39:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-22 15:39:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-22 15:39:05,607 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-22 15:39:05,607 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-22 15:39:05,608 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-22 15:39:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-22 15:39:05,609 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-22 15:39:05,609 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-22 15:39:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-22 15:39:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-22 15:39:05,610 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-22 15:39:05,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-22 15:39:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-22 15:39:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-22 15:39:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 15:39:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-22 15:39:05,611 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-22 15:39:05,611 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-22 15:39:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-22 15:39:05,612 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-22 15:39:05,612 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-22 15:39:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 15:39:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-22 15:39:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-22 15:39:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-22 15:39:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-22 15:39:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-22 15:39:05,613 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-22 15:39:05,613 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-22 15:39:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-22 15:39:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 15:39:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-22 15:39:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-22 15:39:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-22 15:39:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-22 15:39:05,614 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-22 15:39:05,614 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-22 15:39:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-22 15:39:05,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-22 15:39:05,615 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-22 15:39:05,616 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-22 15:39:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-22 15:39:05,616 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-22 15:39:05,616 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-22 15:39:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-22 15:39:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 15:39:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-22 15:39:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-22 15:39:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-22 15:39:05,617 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-22 15:39:05,617 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 15:39:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 15:39:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-22 15:39:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-22 15:39:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 15:39:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-22 15:39:05,618 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-22 15:39:05,618 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 15:39:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-22 15:39:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-22 15:39:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-22 15:39:05,619 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-22 15:39:05,619 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 15:39:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-22 15:39:05,620 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-22 15:39:05,620 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:39:05,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-22 15:39:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:39:05,623 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-22 15:39:05,623 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-22 15:39:05,624 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-22 15:39:05,624 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-22 15:39:05,625 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-22 15:39:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-22 15:39:05,625 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-22 15:39:05,625 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-22 15:39:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-22 15:39:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-22 15:39:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-22 15:39:05,630 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-22 15:39:05,630 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-22 15:39:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-22 15:39:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-22 15:39:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-22 15:39:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-22 15:39:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-22 15:39:05,631 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-22 15:39:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 15:39:05,631 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-22 15:39:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-22 15:39:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-22 15:39:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-22 15:39:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-22 15:39:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-22 15:39:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-22 15:39:05,632 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-22 15:39:05,632 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 15:39:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 15:39:05,633 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 15:39:05,633 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 15:39:06,252 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 15:39:06,255 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 15:39:06,659 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 15:39:44,363 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 15:39:44,377 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 15:39:44,378 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-22 15:39:44,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:39:44 BoogieIcfgContainer [2021-12-22 15:39:44,381 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 15:39:44,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 15:39:44,383 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 15:39:44,389 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 15:39:44,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 03:39:02" (1/3) ... [2021-12-22 15:39:44,390 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2254f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:39:44, skipping insertion in model container [2021-12-22 15:39:44,390 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 03:39:05" (2/3) ... [2021-12-22 15:39:44,391 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@64c2254f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 03:39:44, skipping insertion in model container [2021-12-22 15:39:44,391 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 03:39:44" (3/3) ... [2021-12-22 15:39:44,392 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-22 15:39:44,398 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 15:39:44,398 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 15:39:44,461 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 15:39:44,479 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 15:39:44,479 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 15:39:44,529 INFO L276 IsEmpty]: Start isEmpty. Operand has 1214 states, 825 states have (on average 1.2484848484848485) internal successors, (1030), 862 states have internal predecessors, (1030), 320 states have call successors, (320), 68 states have call predecessors, (320), 67 states have return successors, (313), 306 states have call predecessors, (313), 313 states have call successors, (313) [2021-12-22 15:39:44,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-22 15:39:44,535 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:39:44,535 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-22 15:39:44,536 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] === [2021-12-22 15:39:44,540 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:39:44,540 INFO L85 PathProgramCache]: Analyzing trace with hash 2078228441, now seen corresponding path program 1 times [2021-12-22 15:39:44,548 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:39:44,548 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611945959] [2021-12-22 15:39:44,548 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:39:44,550 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:39:45,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,599 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:39:45,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,613 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:39:45,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:39:45,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:39:45,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:39:45,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:39:45,689 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:39:45,690 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611945959] [2021-12-22 15:39:45,690 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611945959] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:39:45,691 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:39:45,691 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:39:45,692 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [681876288] [2021-12-22 15:39:45,693 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:39:45,698 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:39:45,701 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:39:45,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:39:45,730 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:39:45,735 INFO L87 Difference]: Start difference. First operand has 1214 states, 825 states have (on average 1.2484848484848485) internal successors, (1030), 862 states have internal predecessors, (1030), 320 states have call successors, (320), 68 states have call predecessors, (320), 67 states have return successors, (313), 306 states have call predecessors, (313), 313 states have call successors, (313) Second operand has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:39:46,113 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:39:46,114 INFO L93 Difference]: Finished difference Result 3598 states and 5032 transitions. [2021-12-22 15:39:46,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-22 15:39:46,116 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 48 [2021-12-22 15:39:46,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:39:46,146 INFO L225 Difference]: With dead ends: 3598 [2021-12-22 15:39:46,146 INFO L226 Difference]: Without dead ends: 2381 [2021-12-22 15:39:46,160 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:39:46,163 INFO L933 BasicCegarLoop]: 2213 mSDtfsCounter, 1664 mSDsluCounter, 6073 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1666 SdHoareTripleChecker+Valid, 8286 SdHoareTripleChecker+Invalid, 14 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:39:46,164 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 8286 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:39:46,184 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2021-12-22 15:39:46,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2379. [2021-12-22 15:39:46,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2379 states, 1626 states have (on average 1.2404674046740467) internal successors, (2017), 1688 states have internal predecessors, (2017), 620 states have call successors, (620), 135 states have call predecessors, (620), 132 states have return successors, (656), 600 states have call predecessors, (656), 614 states have call successors, (656) [2021-12-22 15:39:46,340 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3293 transitions. [2021-12-22 15:39:46,343 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3293 transitions. Word has length 48 [2021-12-22 15:39:46,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:39:46,344 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 3293 transitions. [2021-12-22 15:39:46,344 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.2) internal successors, (26), 4 states have internal predecessors, (26), 2 states have call successors, (8), 3 states have call predecessors, (8), 1 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2021-12-22 15:39:46,344 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3293 transitions. [2021-12-22 15:39:46,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-22 15:39:46,346 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:39:46,347 INFO L514 BasicCegarLoop]: trace histogram [3, 3, 3, 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] [2021-12-22 15:39:46,347 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-22 15:39:46,347 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] === [2021-12-22 15:39:46,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:39:46,348 INFO L85 PathProgramCache]: Analyzing trace with hash -2117875097, now seen corresponding path program 1 times [2021-12-22 15:39:46,348 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:39:46,348 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1014712344] [2021-12-22 15:39:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:39:46,349 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:39:46,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:46,968 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:39:46,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:46,983 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:39:46,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,001 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:39:47,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,014 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:47,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:39:47,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,042 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:39:47,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,056 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-22 15:39:47,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:47,067 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-22 15:39:47,068 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:39:47,068 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1014712344] [2021-12-22 15:39:47,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1014712344] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:39:47,068 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:39:47,069 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-22 15:39:47,069 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396764864] [2021-12-22 15:39:47,069 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:39:47,071 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-22 15:39:47,071 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:39:47,071 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-22 15:39:47,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-22 15:39:47,074 INFO L87 Difference]: Start difference. First operand 2379 states and 3293 transitions. Second operand has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:39:47,302 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:39:47,303 INFO L93 Difference]: Finished difference Result 2385 states and 3298 transitions. [2021-12-22 15:39:47,303 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-22 15:39:47,303 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) Word has length 53 [2021-12-22 15:39:47,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:39:47,322 INFO L225 Difference]: With dead ends: 2385 [2021-12-22 15:39:47,322 INFO L226 Difference]: Without dead ends: 2352 [2021-12-22 15:39:47,328 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-22 15:39:47,330 INFO L933 BasicCegarLoop]: 1640 mSDtfsCounter, 1620 mSDsluCounter, 3271 mSDsCounter, 0 mSdLazyCounter, 6 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1620 SdHoareTripleChecker+Valid, 4911 SdHoareTripleChecker+Invalid, 8 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 6 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2021-12-22 15:39:47,330 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1620 Valid, 4911 Invalid, 8 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 6 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2021-12-22 15:39:47,335 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2021-12-22 15:39:47,417 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2021-12-22 15:39:47,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2352 states, 1607 states have (on average 1.24019912881145) internal successors, (1993), 1667 states have internal predecessors, (1993), 614 states have call successors, (614), 132 states have call predecessors, (614), 130 states have return successors, (653), 597 states have call predecessors, (653), 611 states have call successors, (653) [2021-12-22 15:39:47,440 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3260 transitions. [2021-12-22 15:39:47,441 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3260 transitions. Word has length 53 [2021-12-22 15:39:47,441 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:39:47,441 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 3260 transitions. [2021-12-22 15:39:47,442 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 5.8) internal successors, (29), 4 states have internal predecessors, (29), 2 states have call successors, (9), 3 states have call predecessors, (9), 1 states have return successors, (7), 2 states have call predecessors, (7), 2 states have call successors, (7) [2021-12-22 15:39:47,442 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3260 transitions. [2021-12-22 15:39:47,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-22 15:39:47,454 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:39:47,454 INFO L514 BasicCegarLoop]: trace histogram [11, 11, 11, 10, 10, 5, 5, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:39:47,455 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-22 15:39:47,455 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:39:47,455 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:39:47,456 INFO L85 PathProgramCache]: Analyzing trace with hash 404406822, now seen corresponding path program 1 times [2021-12-22 15:39:47,456 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:39:47,456 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1806593089] [2021-12-22 15:39:47,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:39:47,456 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:39:47,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,023 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-22 15:39:48,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,034 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-22 15:39:48,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,039 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 15:39:48,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,045 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-22 15:39:48,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-22 15:39:48,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-22 15:39:48,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-22 15:39:48,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,112 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,118 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:39:48,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:39:48,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-22 15:39:48,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,134 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-22 15:39:48,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:39:48,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:39:48,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-22 15:39:48,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-22 15:39:48,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-22 15:39:48,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-22 15:39:48,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,191 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-22 15:39:48,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-22 15:39:48,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,413 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:39:48,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,633 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-22 15:39:48,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,641 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,646 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-22 15:39:48,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,652 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,658 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-22 15:39:48,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,666 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,672 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-22 15:39:48,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,683 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,688 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-22 15:39:48,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,697 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-22 15:39:48,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,703 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-22 15:39:48,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,712 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-22 15:39:48,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,781 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-22 15:39:48,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,789 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-22 15:39:48,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,796 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-22 15:39:48,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,803 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-22 15:39:48,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 15:39:48,809 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-22 15:39:48,810 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 15:39:48,810 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1806593089] [2021-12-22 15:39:48,810 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1806593089] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 15:39:48,810 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 15:39:48,810 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-22 15:39:48,811 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732924559] [2021-12-22 15:39:48,811 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 15:39:48,811 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-22 15:39:48,812 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 15:39:48,812 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-22 15:39:48,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-22 15:39:48,813 INFO L87 Difference]: Start difference. First operand 2352 states and 3260 transitions. Second operand has 10 states, 10 states have (on average 10.7) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-22 15:39:50,871 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 15:40:05,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-22 15:40:05,512 INFO L93 Difference]: Finished difference Result 5032 states and 7182 transitions. [2021-12-22 15:40:05,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-22 15:40:05,513 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) Word has length 265 [2021-12-22 15:40:05,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-22 15:40:05,540 INFO L225 Difference]: With dead ends: 5032 [2021-12-22 15:40:05,541 INFO L226 Difference]: Without dead ends: 2697 [2021-12-22 15:40:05,556 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-12-22 15:40:05,559 INFO L933 BasicCegarLoop]: 1686 mSDtfsCounter, 1482 mSDsluCounter, 7143 mSDsCounter, 0 mSdLazyCounter, 2051 mSolverCounterSat, 1298 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 15.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 8829 SdHoareTripleChecker+Invalid, 3350 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 2051 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 16.2s IncrementalHoareTripleChecker+Time [2021-12-22 15:40:05,562 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1572 Valid, 8829 Invalid, 3350 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1298 Valid, 2051 Invalid, 1 Unknown, 0 Unchecked, 16.2s Time] [2021-12-22 15:40:05,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-12-22 15:40:05,678 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2549. [2021-12-22 15:40:05,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2549 states, 1755 states have (on average 1.2444444444444445) internal successors, (2184), 1821 states have internal predecessors, (2184), 657 states have call successors, (657), 132 states have call predecessors, (657), 136 states have return successors, (752), 642 states have call predecessors, (752), 654 states have call successors, (752) [2021-12-22 15:40:05,703 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3593 transitions. [2021-12-22 15:40:05,705 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3593 transitions. Word has length 265 [2021-12-22 15:40:05,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-22 15:40:05,707 INFO L470 AbstractCegarLoop]: Abstraction has 2549 states and 3593 transitions. [2021-12-22 15:40:05,707 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.7) internal successors, (107), 6 states have internal predecessors, (107), 2 states have call successors, (34), 6 states have call predecessors, (34), 2 states have return successors, (32), 2 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-22 15:40:05,707 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3593 transitions. [2021-12-22 15:40:05,717 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-22 15:40:05,717 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 15:40:05,718 INFO L514 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:40:05,718 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-22 15:40:05,718 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 15:40:05,719 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 15:40:05,719 INFO L85 PathProgramCache]: Analyzing trace with hash -2073343996, now seen corresponding path program 1 times [2021-12-22 15:40:05,719 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 15:40:05,720 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2014095799] [2021-12-22 15:40:05,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 15:40:05,720 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 15:40:05,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat