./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 ff03de63 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-ff03de6 [2021-12-21 17:12:29,918 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 17:12:29,920 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 17:12:29,955 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 17:12:29,955 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 17:12:29,958 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 17:12:29,959 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 17:12:29,962 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 17:12:29,963 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 17:12:29,967 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 17:12:29,968 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 17:12:29,969 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 17:12:29,969 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 17:12:29,971 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 17:12:29,972 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 17:12:29,975 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 17:12:29,976 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 17:12:29,976 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 17:12:29,979 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 17:12:29,983 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 17:12:29,985 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 17:12:29,985 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 17:12:29,987 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 17:12:29,988 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 17:12:29,993 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 17:12:29,994 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 17:12:29,994 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 17:12:29,995 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 17:12:29,996 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 17:12:29,996 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 17:12:29,997 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 17:12:29,998 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 17:12:29,999 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 17:12:30,000 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 17:12:30,001 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 17:12:30,001 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 17:12:30,002 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 17:12:30,002 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 17:12:30,002 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 17:12:30,003 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 17:12:30,003 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 17:12:30,005 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 17:12:30,028 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 17:12:30,029 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 17:12:30,029 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 17:12:30,029 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 17:12:30,030 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 17:12:30,030 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 17:12:30,031 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 17:12:30,031 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 17:12:30,031 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 17:12:30,032 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 17:12:30,032 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 17:12:30,032 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 17:12:30,033 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 17:12:30,033 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 17:12:30,033 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 17:12:30,033 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 17:12:30,033 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 17:12:30,034 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 17:12:30,034 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 17:12:30,034 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 17:12:30,034 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 17:12:30,034 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:12:30,035 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 17:12:30,035 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 17:12:30,035 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 17:12:30,035 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 17:12:30,035 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 17:12:30,036 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 17:12:30,037 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 17:12:30,037 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 17:12:30,037 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 17:12:30,037 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c [2021-12-21 17:12:30,282 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 17:12:30,306 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 17:12:30,309 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 17:12:30,310 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 17:12:30,310 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 17:12:30,311 INFO L432 ainManager$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 [2021-12-21 17:12:30,423 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf40d33ad/dec0ae9ca44d45f1bee2a29d0ae18566/FLAGac0a516d6 [2021-12-21 17:12:31,064 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 17:12:31,065 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 [2021-12-21 17:12:31,100 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf40d33ad/dec0ae9ca44d45f1bee2a29d0ae18566/FLAGac0a516d6 [2021-12-21 17:12:31,394 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf40d33ad/dec0ae9ca44d45f1bee2a29d0ae18566 [2021-12-21 17:12:31,396 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 17:12:31,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 17:12:31,412 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 17:12:31,412 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 17:12:31,415 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 17:12:31,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:12:31" (1/1) ... [2021-12-21 17:12:31,416 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64068ea8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:31, skipping insertion in model container [2021-12-21 17:12:31,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 05:12:31" (1/1) ... [2021-12-21 17:12:31,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 17:12:31,530 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 17:12:32,840 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] [2021-12-21 17:12:32,862 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:12:32,921 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 17:12:33,196 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] [2021-12-21 17:12:33,201 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 17:12:33,361 INFO L208 MainTranslator]: Completed translation [2021-12-21 17:12:33,361 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33 WrapperNode [2021-12-21 17:12:33,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 17:12:33,376 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 17:12:33,376 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 17:12:33,376 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 17:12:33,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,492 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,633 INFO L137 Inliner]: procedures = 287, calls = 1398, calls flagged for inlining = 167, calls inlined = 163, statements flattened = 3687 [2021-12-21 17:12:33,634 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 17:12:33,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 17:12:33,635 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 17:12:33,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 17:12:33,641 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,641 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,659 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,660 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,791 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,808 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,829 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 17:12:33,830 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 17:12:33,830 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 17:12:33,831 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 17:12:33,831 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (1/1) ... [2021-12-21 17:12:33,841 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 17:12:33,857 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:12:33,872 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) [2021-12-21 17:12:33,881 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 [2021-12-21 17:12:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 17:12:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 17:12:33,916 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 17:12:33,916 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 17:12:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-21 17:12:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-21 17:12:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-21 17:12:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-21 17:12:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-21 17:12:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-21 17:12:33,917 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 17:12:33,917 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 17:12:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-21 17:12:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-21 17:12:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 17:12:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 17:12:33,918 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-21 17:12:33,918 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-21 17:12:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 17:12:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 17:12:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-21 17:12:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-21 17:12:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-21 17:12:33,919 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-21 17:12:33,919 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-21 17:12:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-21 17:12:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 17:12:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 17:12:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 17:12:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 17:12:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-21 17:12:33,920 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-21 17:12:33,920 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-21 17:12:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-21 17:12:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-21 17:12:33,921 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-21 17:12:33,921 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 17:12:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 17:12:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-21 17:12:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-21 17:12:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-21 17:12:33,922 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-21 17:12:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 17:12:33,922 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 17:12:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-21 17:12:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-21 17:12:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-21 17:12:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-21 17:12:33,923 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 17:12:33,923 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 17:12:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 17:12:33,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 17:12:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 17:12:33,924 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 17:12:33,924 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-21 17:12:33,925 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-21 17:12:33,925 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-21 17:12:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-21 17:12:33,926 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 17:12:33,926 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 17:12:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-21 17:12:33,927 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-21 17:12:33,927 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-21 17:12:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-21 17:12:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-21 17:12:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-21 17:12:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 17:12:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-21 17:12:33,928 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-21 17:12:33,928 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-21 17:12:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-21 17:12:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-21 17:12:33,929 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-21 17:12:33,929 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 17:12:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-21 17:12:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-21 17:12:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-21 17:12:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-21 17:12:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-21 17:12:33,930 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-21 17:12:33,930 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-21 17:12:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-21 17:12:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 17:12:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-21 17:12:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-21 17:12:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-21 17:12:33,931 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-21 17:12:33,931 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 17:12:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 17:12:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-21 17:12:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-21 17:12:33,932 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-21 17:12:33,932 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-21 17:12:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-21 17:12:33,933 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-21 17:12:33,933 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-21 17:12:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-21 17:12:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 17:12:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-21 17:12:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-21 17:12:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-21 17:12:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-21 17:12:33,934 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 17:12:33,934 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 17:12:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-21 17:12:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-21 17:12:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 17:12:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-21 17:12:33,935 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-21 17:12:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 17:12:33,935 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-21 17:12:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-21 17:12:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 17:12:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 17:12:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 17:12:33,936 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-21 17:12:33,936 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-21 17:12:33,937 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:12:33,937 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-21 17:12:33,939 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:12:33,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-21 17:12:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-21 17:12:33,940 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-21 17:12:33,940 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-21 17:12:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-21 17:12:33,941 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-21 17:12:33,941 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-21 17:12:33,942 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-21 17:12:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-21 17:12:33,947 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-21 17:12:33,947 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-21 17:12:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 17:12:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 17:12:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 17:12:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 17:12:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-21 17:12:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-21 17:12:33,948 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-21 17:12:33,948 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-21 17:12:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 17:12:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-21 17:12:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-21 17:12:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-21 17:12:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-21 17:12:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-21 17:12:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-21 17:12:33,949 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-21 17:12:33,949 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-21 17:12:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 17:12:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 17:12:33,950 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 17:12:33,950 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 17:12:34,530 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 17:12:34,532 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 17:12:34,973 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 17:13:12,351 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 17:13:12,368 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 17:13:12,369 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-21 17:13:12,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:13:12 BoogieIcfgContainer [2021-12-21 17:13:12,372 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 17:13:12,373 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 17:13:12,373 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 17:13:12,376 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 17:13:12,376 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 05:12:31" (1/3) ... [2021-12-21 17:13:12,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9a55e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:13:12, skipping insertion in model container [2021-12-21 17:13:12,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 05:12:33" (2/3) ... [2021-12-21 17:13:12,377 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f9a55e5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 05:13:12, skipping insertion in model container [2021-12-21 17:13:12,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 05:13:12" (3/3) ... [2021-12-21 17:13:12,378 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-21 17:13:12,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 17:13:12,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 17:13:12,424 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 17:13:12,429 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 [2021-12-21 17:13:12,429 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 17:13:12,461 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) [2021-12-21 17:13:12,466 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-21 17:13:12,466 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:13:12,467 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] [2021-12-21 17:13:12,467 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] === [2021-12-21 17:13:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:13:12,472 INFO L85 PathProgramCache]: Analyzing trace with hash 2078228441, now seen corresponding path program 1 times [2021-12-21 17:13:12,479 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:13:12,480 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1126578841] [2021-12-21 17:13:12,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:13:12,481 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:13:12,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,338 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:13:13,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,349 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 17:13:13,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,357 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:13:13,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,365 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:13,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,370 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 17:13:13,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,377 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 17:13:13,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:13,385 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 17:13:13,385 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:13:13,386 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1126578841] [2021-12-21 17:13:13,386 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1126578841] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:13:13,386 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:13:13,387 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:13:13,388 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747415101] [2021-12-21 17:13:13,388 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:13:13,392 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:13:13,392 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:13:13,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:13:13,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:13:13,418 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) [2021-12-21 17:13:13,831 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:13:13,832 INFO L93 Difference]: Finished difference Result 3598 states and 5032 transitions. [2021-12-21 17:13:13,833 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 17:13:13,834 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 [2021-12-21 17:13:13,834 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:13:13,861 INFO L225 Difference]: With dead ends: 3598 [2021-12-21 17:13:13,862 INFO L226 Difference]: Without dead ends: 2381 [2021-12-21 17:13:13,875 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 [2021-12-21 17:13:13,878 INFO L933 BasicCegarLoop]: 2213 mSDtfsCounter, 1664 mSDsluCounter, 6073 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s 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, 0.1s IncrementalHoareTripleChecker+Time [2021-12-21 17:13:13,879 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1666 Valid, 8286 Invalid, 14 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2021-12-21 17:13:13,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2021-12-21 17:13:14,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2379. [2021-12-21 17:13:14,037 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) [2021-12-21 17:13:14,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3293 transitions. [2021-12-21 17:13:14,062 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3293 transitions. Word has length 48 [2021-12-21 17:13:14,063 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:13:14,063 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 3293 transitions. [2021-12-21 17:13:14,063 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) [2021-12-21 17:13:14,064 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3293 transitions. [2021-12-21 17:13:14,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-21 17:13:14,066 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:13:14,067 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] [2021-12-21 17:13:14,067 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 17:13:14,067 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] === [2021-12-21 17:13:14,068 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:13:14,068 INFO L85 PathProgramCache]: Analyzing trace with hash -2117875097, now seen corresponding path program 1 times [2021-12-21 17:13:14,068 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:13:14,068 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [751277003] [2021-12-21 17:13:14,069 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:13:14,069 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:13:14,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,603 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:13:14,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,612 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 17:13:14,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,618 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:13:14,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,626 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:14,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,631 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 17:13:14,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,637 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 17:13:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,644 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-21 17:13:14,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:14,651 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-21 17:13:14,651 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:13:14,651 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [751277003] [2021-12-21 17:13:14,651 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [751277003] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:13:14,651 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:13:14,652 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-21 17:13:14,652 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [584961795] [2021-12-21 17:13:14,652 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:13:14,653 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-21 17:13:14,653 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:13:14,653 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-21 17:13:14,653 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-21 17:13:14,654 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) [2021-12-21 17:13:14,880 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:13:14,881 INFO L93 Difference]: Finished difference Result 2385 states and 3298 transitions. [2021-12-21 17:13:14,881 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-21 17:13:14,881 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 [2021-12-21 17:13:14,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:13:14,895 INFO L225 Difference]: With dead ends: 2385 [2021-12-21 17:13:14,895 INFO L226 Difference]: Without dead ends: 2352 [2021-12-21 17:13:14,896 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 [2021-12-21 17:13:14,898 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 [2021-12-21 17:13:14,898 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] [2021-12-21 17:13:14,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2021-12-21 17:13:14,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2021-12-21 17:13:14,971 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) [2021-12-21 17:13:14,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3260 transitions. [2021-12-21 17:13:14,986 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3260 transitions. Word has length 53 [2021-12-21 17:13:14,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:13:14,987 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 3260 transitions. [2021-12-21 17:13:14,987 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) [2021-12-21 17:13:14,987 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3260 transitions. [2021-12-21 17:13:14,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-21 17:13:14,998 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:13:14,998 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] [2021-12-21 17:13:14,999 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 17:13:14,999 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] === [2021-12-21 17:13:14,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:13:14,999 INFO L85 PathProgramCache]: Analyzing trace with hash 404406822, now seen corresponding path program 1 times [2021-12-21 17:13:15,000 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:13:15,000 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [651765381] [2021-12-21 17:13:15,000 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:13:15,000 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:13:15,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,408 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:13:15,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,416 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 17:13:15,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,421 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:13:15,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,426 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:15,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,431 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 17:13:15,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,437 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 17:13:15,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,443 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 17:13:15,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,482 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 17:13:15,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,496 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:15,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,501 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:15,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,511 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:15,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,515 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 17:13:15,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,521 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 17:13:15,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,533 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:15,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,539 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:15,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:15,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,548 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 17:13:15,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,554 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 17:13:15,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,565 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:15,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,570 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:15,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:15,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:13:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:13:15,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:15,828 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:13:15,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,067 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:13:16,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,074 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 17:13:16,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,171 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 17:13:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:13:16,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,202 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:13:16,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-21 17:13:16,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,215 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-21 17:13:16,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,222 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,232 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,296 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-21 17:13:16,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,303 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-21 17:13:16,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-21 17:13:16,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-21 17:13:16,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:16,321 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 425 trivial. 0 not checked. [2021-12-21 17:13:16,322 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:13:16,322 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [651765381] [2021-12-21 17:13:16,322 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [651765381] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 17:13:16,322 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 17:13:16,322 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-21 17:13:16,322 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206773990] [2021-12-21 17:13:16,323 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 17:13:16,323 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-21 17:13:16,323 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 17:13:16,324 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-21 17:13:16,324 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-21 17:13:16,324 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) [2021-12-21 17:13:18,377 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 [] [2021-12-21 17:13:31,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 17:13:31,404 INFO L93 Difference]: Finished difference Result 5032 states and 7182 transitions. [2021-12-21 17:13:31,404 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-12-21 17:13:31,405 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 [2021-12-21 17:13:31,406 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 17:13:31,424 INFO L225 Difference]: With dead ends: 5032 [2021-12-21 17:13:31,424 INFO L226 Difference]: Without dead ends: 2697 [2021-12-21 17:13:31,436 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 82 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=41, Invalid=115, Unknown=0, NotChecked=0, Total=156 [2021-12-21 17:13:31,437 INFO L933 BasicCegarLoop]: 1690 mSDtfsCounter, 1482 mSDsluCounter, 7159 mSDsCounter, 0 mSdLazyCounter, 2059 mSolverCounterSat, 1298 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 13.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1572 SdHoareTripleChecker+Valid, 8849 SdHoareTripleChecker+Invalid, 3358 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1298 IncrementalHoareTripleChecker+Valid, 2059 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 14.6s IncrementalHoareTripleChecker+Time [2021-12-21 17:13:31,438 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [1572 Valid, 8849 Invalid, 3358 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1298 Valid, 2059 Invalid, 1 Unknown, 0 Unchecked, 14.6s Time] [2021-12-21 17:13:31,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2697 states. [2021-12-21 17:13:31,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2697 to 2549. [2021-12-21 17:13:31,546 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) [2021-12-21 17:13:31,565 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2549 states to 2549 states and 3593 transitions. [2021-12-21 17:13:31,566 INFO L78 Accepts]: Start accepts. Automaton has 2549 states and 3593 transitions. Word has length 265 [2021-12-21 17:13:31,569 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 17:13:31,569 INFO L470 AbstractCegarLoop]: Abstraction has 2549 states and 3593 transitions. [2021-12-21 17:13:31,569 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) [2021-12-21 17:13:31,569 INFO L276 IsEmpty]: Start isEmpty. Operand 2549 states and 3593 transitions. [2021-12-21 17:13:31,581 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2021-12-21 17:13:31,581 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 17:13:31,581 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] [2021-12-21 17:13:31,582 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-21 17:13:31,582 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] === [2021-12-21 17:13:31,584 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 17:13:31,585 INFO L85 PathProgramCache]: Analyzing trace with hash -2073343996, now seen corresponding path program 1 times [2021-12-21 17:13:31,587 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 17:13:31,587 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [847520062] [2021-12-21 17:13:31,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:13:31,588 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 17:13:31,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,076 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-21 17:13:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,082 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-21 17:13:32,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 17:13:32,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,092 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 17:13:32,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,100 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-21 17:13:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-21 17:13:32,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-21 17:13:32,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,157 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,165 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:32,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:32,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,173 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 17:13:32,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-21 17:13:32,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,186 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,190 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:32,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,194 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:32,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,197 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-21 17:13:32,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-21 17:13:32,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,207 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:32,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,216 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:32,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,219 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-21 17:13:32,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-21 17:13:32,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,261 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-21 17:13:32,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,267 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-21 17:13:32,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 17:13:32,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-21 17:13:32,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,284 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-21 17:13:32,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,290 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:32,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,295 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 17:13:32,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,299 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-21 17:13:32,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,402 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-21 17:13:32,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:32,597 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:13:32,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,010 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 17:13:33,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,024 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,030 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-21 17:13:33,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,036 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,040 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-21 17:13:33,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,223 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-21 17:13:33,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,240 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-21 17:13:33,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,245 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 17:13:33,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-21 17:13:33,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,257 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,266 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2021-12-21 17:13:33,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,272 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,281 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2021-12-21 17:13:33,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,287 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 109 [2021-12-21 17:13:33,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 17:13:33,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2021-12-21 17:13:33,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 328 [2021-12-21 17:13:33,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,309 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 333 [2021-12-21 17:13:33,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:33,314 INFO L134 CoverageAnalysis]: Checked inductivity of 724 backedges. 5 proven. 4 refuted. 0 times theorem prover too weak. 715 trivial. 0 not checked. [2021-12-21 17:13:33,314 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 17:13:33,314 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [847520062] [2021-12-21 17:13:33,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [847520062] provided 0 perfect and 1 imperfect interpolant sequences [2021-12-21 17:13:33,315 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1337932295] [2021-12-21 17:13:33,315 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 17:13:33,315 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-21 17:13:33,315 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 17:13:33,319 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-21 17:13:33,320 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-21 17:13:34,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 17:13:34,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 4119 conjuncts, 10 conjunts are in the unsatisfiable core [2021-12-21 17:13:34,843 INFO L286 TraceCheckSpWp]: Computing forward predicates...