./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 839c364b Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/ldv-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 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 18:44:58,091 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 18:44:58,093 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 18:44:58,152 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 18:44:58,156 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 18:44:58,160 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 18:44:58,162 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 18:44:58,164 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 18:44:58,167 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 18:44:58,170 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 18:44:58,171 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 18:44:58,172 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 18:44:58,172 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 18:44:58,174 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 18:44:58,175 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 18:44:58,179 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 18:44:58,180 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 18:44:58,181 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 18:44:58,185 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 18:44:58,189 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 18:44:58,191 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 18:44:58,192 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 18:44:58,193 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 18:44:58,194 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 18:44:58,199 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 18:44:58,199 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 18:44:58,199 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 18:44:58,200 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 18:44:58,200 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 18:44:58,201 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 18:44:58,201 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 18:44:58,201 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 18:44:58,202 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 18:44:58,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 18:44:58,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 18:44:58,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 18:44:58,203 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 18:44:58,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 18:44:58,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 18:44:58,204 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 18:44:58,205 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 18:44:58,205 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 18:44:58,232 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 18:44:58,234 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 18:44:58,235 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 18:44:58,235 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 18:44:58,236 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 18:44:58,236 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 18:44:58,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 18:44:58,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 18:44:58,237 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 18:44:58,237 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 18:44:58,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 18:44:58,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 18:44:58,238 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 18:44:58,238 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 18:44:58,238 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 18:44:58,239 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 18:44:58,239 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:44:58,240 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 18:44:58,240 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 18:44:58,240 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 18:44:58,240 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 18:44:58,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 18:44:58,241 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 18:44:58,242 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 18:44:58,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 18:44:58,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 18:44:58,242 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4230dcd825d3a8c4f2993182656471f5db1d08c7b5deb32f72a092968196ad9c [2021-12-14 18:44:58,453 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 18:44:58,471 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 18:44:58,473 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 18:44:58,474 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 18:44:58,474 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 18:44:58,475 INFO L432 ainManager$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 [2021-12-14 18:44:58,527 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04832f15b/c9e29b57515845b485f779523044d293/FLAG0a1d12733 [2021-12-14 18:44:59,305 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 18:44:59,306 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 [2021-12-14 18:44:59,335 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04832f15b/c9e29b57515845b485f779523044d293/FLAG0a1d12733 [2021-12-14 18:44:59,544 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/04832f15b/c9e29b57515845b485f779523044d293 [2021-12-14 18:44:59,547 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 18:44:59,548 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 18:44:59,550 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 18:44:59,550 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 18:44:59,553 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 18:44:59,554 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:44:59" (1/1) ... [2021-12-14 18:44:59,555 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fe7b3cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:44:59, skipping insertion in model container [2021-12-14 18:44:59,555 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 06:44:59" (1/1) ... [2021-12-14 18:44:59,561 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 18:44:59,668 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 18:45:00,912 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] [2021-12-14 18:45:00,938 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:45:00,978 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 18:45:01,232 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] [2021-12-14 18:45:01,236 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 18:45:01,314 INFO L208 MainTranslator]: Completed translation [2021-12-14 18:45:01,315 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01 WrapperNode [2021-12-14 18:45:01,315 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 18:45:01,316 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 18:45:01,316 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 18:45:01,316 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 18:45:01,321 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,393 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,505 INFO L137 Inliner]: procedures = 287, calls = 1398, calls flagged for inlining = 167, calls inlined = 163, statements flattened = 3687 [2021-12-14 18:45:01,507 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 18:45:01,507 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 18:45:01,508 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 18:45:01,508 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 18:45:01,514 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,514 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,534 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,534 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,610 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,629 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,665 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 18:45:01,666 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 18:45:01,667 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 18:45:01,667 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 18:45:01,668 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (1/1) ... [2021-12-14 18:45:01,673 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 18:45:01,680 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 18:45:01,690 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-12-14 18:45:01,706 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-12-14 18:45:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 18:45:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 18:45:01,721 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 18:45:01,721 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 18:45:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-12-14 18:45:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-12-14 18:45:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure netif_wake_queue [2021-12-14 18:45:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_wake_queue [2021-12-14 18:45:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-14 18:45:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-14 18:45:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 18:45:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 18:45:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open_clean [2021-12-14 18:45:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open_clean [2021-12-14 18:45:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-14 18:45:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-14 18:45:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-14 18:45:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-14 18:45:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 18:45:01,723 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 18:45:01,723 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_spi_trans [2021-12-14 18:45:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_spi_trans [2021-12-14 18:45:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_post_probe [2021-12-14 18:45:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_post_probe [2021-12-14 18:45:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_read_reg [2021-12-14 18:45:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_read_reg [2021-12-14 18:45:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 18:45:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-14 18:45:01,724 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-14 18:45:01,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 18:45:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_xmalloc [2021-12-14 18:45:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_xmalloc [2021-12-14 18:45:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_stop [2021-12-14 18:45:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_stop [2021-12-14 18:45:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_bits [2021-12-14 18:45:01,725 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_bits [2021-12-14 18:45:01,725 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-14 18:45:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-14 18:45:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure netif_rx_ni [2021-12-14 18:45:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_rx_ni [2021-12-14 18:45:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure can_led_event [2021-12-14 18:45:01,726 INFO L138 BoogieDeclarations]: Found implementation of procedure can_led_event [2021-12-14 18:45:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 18:45:01,726 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 18:45:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-14 18:45:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-14 18:45:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_pre_probe [2021-12-14 18:45:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_pre_probe [2021-12-14 18:45:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 18:45:01,727 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 18:45:01,727 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-14 18:45:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-14 18:45:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-14 18:45:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-14 18:45:01,728 INFO L130 BoogieDeclarations]: Found specification of procedure to_spi_device [2021-12-14 18:45:01,728 INFO L138 BoogieDeclarations]: Found implementation of procedure to_spi_device [2021-12-14 18:45:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_filter_positive_int [2021-12-14 18:45:01,729 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_filter_positive_int [2021-12-14 18:45:01,729 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-14 18:45:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-14 18:45:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure close_candev [2021-12-14 18:45:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure close_candev [2021-12-14 18:45:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free_irq [2021-12-14 18:45:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free_irq [2021-12-14 18:45:01,730 INFO L130 BoogieDeclarations]: Found specification of procedure schedule [2021-12-14 18:45:01,730 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule [2021-12-14 18:45:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 18:45:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_set_normal_mode [2021-12-14 18:45:01,731 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_set_normal_mode [2021-12-14 18:45:01,731 INFO L130 BoogieDeclarations]: Found specification of procedure get_dma_ops [2021-12-14 18:45:01,731 INFO L138 BoogieDeclarations]: Found implementation of procedure get_dma_ops [2021-12-14 18:45:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_remove [2021-12-14 18:45:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_remove [2021-12-14 18:45:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 18:45:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assume [2021-12-14 18:45:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assume [2021-12-14 18:45:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_error_skb [2021-12-14 18:45:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_error_skb [2021-12-14 18:45:01,732 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_sleep [2021-12-14 18:45:01,732 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_sleep [2021-12-14 18:45:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure dma_free_attrs [2021-12-14 18:45:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure dma_free_attrs [2021-12-14 18:45:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 18:45:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_clean [2021-12-14 18:45:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_clean [2021-12-14 18:45:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-14 18:45:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-14 18:45:01,733 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-14 18:45:01,733 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-14 18:45:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-14 18:45:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_assert_linux_drivers_clk1__more_at_exit [2021-12-14 18:45:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-12-14 18:45:01,734 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-12-14 18:45:01,734 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_power_enable [2021-12-14 18:45:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_power_enable [2021-12-14 18:45:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_suspend [2021-12-14 18:45:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_suspend [2021-12-14 18:45:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 18:45:01,735 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_open [2021-12-14 18:45:01,735 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_open [2021-12-14 18:45:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_probe [2021-12-14 18:45:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_probe [2021-12-14 18:45:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 18:45:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 18:45:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_can_resume [2021-12-14 18:45:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_can_resume [2021-12-14 18:45:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 18:45:01,736 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_reset [2021-12-14 18:45:01,736 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_reset [2021-12-14 18:45:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 18:45:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_undef_int [2021-12-14 18:45:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_undef_int [2021-12-14 18:45:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-14 18:45:01,737 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-14 18:45:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 18:45:01,737 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-14 18:45:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-14 18:45:01,738 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:45:01,738 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-12-14 18:45:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:45:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~int [2021-12-14 18:45:01,740 INFO L130 BoogieDeclarations]: Found specification of procedure spi_get_drvdata [2021-12-14 18:45:01,740 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_get_drvdata [2021-12-14 18:45:01,741 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-14 18:45:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-14 18:45:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_setup [2021-12-14 18:45:01,742 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_setup [2021-12-14 18:45:01,742 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_free [2021-12-14 18:45:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_free [2021-12-14 18:45:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure devm_kzalloc [2021-12-14 18:45:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_kzalloc [2021-12-14 18:45:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-14 18:45:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-14 18:45:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-14 18:45:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-14 18:45:01,747 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_hw_rx [2021-12-14 18:45:01,747 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_hw_rx [2021-12-14 18:45:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_is_2510 [2021-12-14 18:45:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_is_2510 [2021-12-14 18:45:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 18:45:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure free_candev [2021-12-14 18:45:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure free_candev [2021-12-14 18:45:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure mcp251x_write_reg [2021-12-14 18:45:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure mcp251x_write_reg [2021-12-14 18:45:01,748 INFO L130 BoogieDeclarations]: Found specification of procedure queue_work [2021-12-14 18:45:01,748 INFO L138 BoogieDeclarations]: Found implementation of procedure queue_work [2021-12-14 18:45:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_final_state [2021-12-14 18:45:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_final_state [2021-12-14 18:45:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 18:45:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 18:45:01,749 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 18:45:01,749 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 18:45:02,331 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 18:45:02,333 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 18:45:02,621 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 18:45:38,783 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 18:45:38,793 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 18:45:38,793 INFO L301 CfgBuilder]: Removed 0 assume(true) statements. [2021-12-14 18:45:38,796 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:38 BoogieIcfgContainer [2021-12-14 18:45:38,796 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 18:45:38,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 18:45:38,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 18:45:38,799 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 18:45:38,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 06:44:59" (1/3) ... [2021-12-14 18:45:38,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6375c754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:38, skipping insertion in model container [2021-12-14 18:45:38,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 06:45:01" (2/3) ... [2021-12-14 18:45:38,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6375c754 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 06:45:38, skipping insertion in model container [2021-12-14 18:45:38,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 06:45:38" (3/3) ... [2021-12-14 18:45:38,801 INFO L111 eAbstractionObserver]: Analyzing ICFG linux-3.14_linux-drivers-clk1_drivers-net-can-mcp251x.cil.i [2021-12-14 18:45:38,804 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 18:45:38,805 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 18:45:38,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 18:45:38,843 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-12-14 18:45:38,843 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 18:45:38,872 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) [2021-12-14 18:45:38,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-12-14 18:45:38,876 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:45:38,877 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] [2021-12-14 18:45:38,877 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:45:38,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:45:38,881 INFO L85 PathProgramCache]: Analyzing trace with hash 2078228441, now seen corresponding path program 1 times [2021-12-14 18:45:38,887 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:45:38,887 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1446323695] [2021-12-14 18:45:38,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:45:38,888 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:45:39,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,726 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:45:39,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,737 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:45:39,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,745 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 18:45:39,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,753 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,758 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 18:45:39,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,766 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:45:39,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:39,774 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 18:45:39,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:45:39,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1446323695] [2021-12-14 18:45:39,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1446323695] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:45:39,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:45:39,776 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:45:39,777 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097179215] [2021-12-14 18:45:39,777 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:45:39,780 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:45:39,780 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:45:39,796 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:45:39,797 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:45:39,800 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) [2021-12-14 18:45:40,157 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:45:40,157 INFO L93 Difference]: Finished difference Result 3598 states and 5032 transitions. [2021-12-14 18:45:40,158 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-14 18:45:40,159 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 [2021-12-14 18:45:40,160 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:45:40,195 INFO L225 Difference]: With dead ends: 3598 [2021-12-14 18:45:40,195 INFO L226 Difference]: Without dead ends: 2381 [2021-12-14 18:45:40,210 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:45:40,214 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 [2021-12-14 18:45:40,215 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] [2021-12-14 18:45:40,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2381 states. [2021-12-14 18:45:40,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2381 to 2379. [2021-12-14 18:45:40,347 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) [2021-12-14 18:45:40,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2379 states to 2379 states and 3293 transitions. [2021-12-14 18:45:40,362 INFO L78 Accepts]: Start accepts. Automaton has 2379 states and 3293 transitions. Word has length 48 [2021-12-14 18:45:40,363 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:45:40,363 INFO L470 AbstractCegarLoop]: Abstraction has 2379 states and 3293 transitions. [2021-12-14 18:45:40,363 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) [2021-12-14 18:45:40,363 INFO L276 IsEmpty]: Start isEmpty. Operand 2379 states and 3293 transitions. [2021-12-14 18:45:40,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2021-12-14 18:45:40,365 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:45:40,365 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] [2021-12-14 18:45:40,366 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-14 18:45:40,366 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:45:40,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:45:40,367 INFO L85 PathProgramCache]: Analyzing trace with hash -2117875097, now seen corresponding path program 1 times [2021-12-14 18:45:40,367 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:45:40,367 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825193901] [2021-12-14 18:45:40,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:45:40,367 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:45:40,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,764 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:45:40,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,772 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:45:40,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,785 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 18:45:40,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,795 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,808 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 18:45:40,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,823 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:45:40,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,830 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2021-12-14 18:45:40,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:40,841 INFO L134 CoverageAnalysis]: Checked inductivity of 17 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2021-12-14 18:45:40,841 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:45:40,841 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825193901] [2021-12-14 18:45:40,842 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825193901] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:45:40,842 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:45:40,842 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-14 18:45:40,842 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1347129344] [2021-12-14 18:45:40,842 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:45:40,843 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-12-14 18:45:40,844 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:45:40,844 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-12-14 18:45:40,847 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-12-14 18:45:40,847 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) [2021-12-14 18:45:41,034 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:45:41,035 INFO L93 Difference]: Finished difference Result 2385 states and 3298 transitions. [2021-12-14 18:45:41,035 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-12-14 18:45:41,036 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 [2021-12-14 18:45:41,036 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:45:41,050 INFO L225 Difference]: With dead ends: 2385 [2021-12-14 18:45:41,050 INFO L226 Difference]: Without dead ends: 2352 [2021-12-14 18:45:41,055 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:45:41,056 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 [2021-12-14 18:45:41,057 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] [2021-12-14 18:45:41,060 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2352 states. [2021-12-14 18:45:41,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2352 to 2352. [2021-12-14 18:45:41,132 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) [2021-12-14 18:45:41,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2352 states to 2352 states and 3260 transitions. [2021-12-14 18:45:41,145 INFO L78 Accepts]: Start accepts. Automaton has 2352 states and 3260 transitions. Word has length 53 [2021-12-14 18:45:41,145 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:45:41,146 INFO L470 AbstractCegarLoop]: Abstraction has 2352 states and 3260 transitions. [2021-12-14 18:45:41,146 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) [2021-12-14 18:45:41,146 INFO L276 IsEmpty]: Start isEmpty. Operand 2352 states and 3260 transitions. [2021-12-14 18:45:41,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 266 [2021-12-14 18:45:41,154 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:45:41,155 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] [2021-12-14 18:45:41,155 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-14 18:45:41,155 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_assert_linux_drivers_clk1__more_at_exitErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 18:45:41,156 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:45:41,156 INFO L85 PathProgramCache]: Analyzing trace with hash 404406822, now seen corresponding path program 1 times [2021-12-14 18:45:41,156 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:45:41,156 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1654654985] [2021-12-14 18:45:41,156 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:45:41,156 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:45:41,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,558 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:45:41,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,563 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:45:41,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,568 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 18:45:41,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,573 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:41,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,577 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 18:45:41,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,581 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:45:41,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,586 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 18:45:41,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,617 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 18:45:41,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,625 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:41,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,630 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:41,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,635 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:41,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,639 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 18:45:41,640 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,643 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:45:41,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,650 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:41,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,654 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:41,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:41,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 18:45:41,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,668 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:45:41,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,675 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:41,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,680 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:41,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,684 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:41,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,689 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:45:41,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:45:41,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:41,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:45:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,096 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:45:42,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,116 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,121 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 18:45:42,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,126 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,131 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-14 18:45:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,253 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2021-12-14 18:45:42,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,264 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2021-12-14 18:45:42,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2021-12-14 18:45:42,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,273 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2021-12-14 18:45:42,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:42,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,330 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2021-12-14 18:45:42,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,336 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 231 [2021-12-14 18:45:42,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,341 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2021-12-14 18:45:42,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,346 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 242 [2021-12-14 18:45:42,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:42,352 INFO L134 CoverageAnalysis]: Checked inductivity of 428 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 423 trivial. 0 not checked. [2021-12-14 18:45:42,352 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:45:42,353 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1654654985] [2021-12-14 18:45:42,353 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1654654985] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:45:42,353 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:45:42,353 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-12-14 18:45:42,353 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1220447880] [2021-12-14 18:45:42,353 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:45:42,354 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-12-14 18:45:42,354 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:45:42,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-12-14 18:45:42,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-12-14 18:45:42,356 INFO L87 Difference]: Start difference. First operand 2352 states and 3260 transitions. Second operand has 10 states, 10 states have (on average 10.9) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-14 18:45:44,406 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.05s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:45:55,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-14 18:45:55,955 INFO L93 Difference]: Finished difference Result 4821 states and 6895 transitions. [2021-12-14 18:45:55,955 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-12-14 18:45:55,955 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) Word has length 265 [2021-12-14 18:45:55,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-14 18:45:55,969 INFO L225 Difference]: With dead ends: 4821 [2021-12-14 18:45:55,970 INFO L226 Difference]: Without dead ends: 2486 [2021-12-14 18:45:55,981 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 95 GetRequests, 85 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 19 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-12-14 18:45:55,982 INFO L933 BasicCegarLoop]: 1540 mSDtfsCounter, 759 mSDsluCounter, 6995 mSDsCounter, 0 mSdLazyCounter, 1969 mSolverCounterSat, 1079 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 12.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 811 SdHoareTripleChecker+Valid, 8535 SdHoareTripleChecker+Invalid, 3049 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 1079 IncrementalHoareTripleChecker+Valid, 1969 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 13.1s IncrementalHoareTripleChecker+Time [2021-12-14 18:45:55,982 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [811 Valid, 8535 Invalid, 3049 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [1079 Valid, 1969 Invalid, 1 Unknown, 0 Unchecked, 13.1s Time] [2021-12-14 18:45:55,985 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2486 states. [2021-12-14 18:45:56,051 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2486 to 2392. [2021-12-14 18:45:56,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2392 states, 1635 states have (on average 1.237308868501529) internal successors, (2023), 1699 states have internal predecessors, (2023), 618 states have call successors, (618), 132 states have call predecessors, (618), 138 states have return successors, (727), 605 states have call predecessors, (727), 615 states have call successors, (727) [2021-12-14 18:45:56,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2392 states to 2392 states and 3368 transitions. [2021-12-14 18:45:56,073 INFO L78 Accepts]: Start accepts. Automaton has 2392 states and 3368 transitions. Word has length 265 [2021-12-14 18:45:56,074 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-14 18:45:56,074 INFO L470 AbstractCegarLoop]: Abstraction has 2392 states and 3368 transitions. [2021-12-14 18:45:56,074 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 10.9) internal successors, (109), 5 states have internal predecessors, (109), 2 states have call successors, (34), 6 states have call predecessors, (34), 3 states have return successors, (32), 3 states have call predecessors, (32), 2 states have call successors, (32) [2021-12-14 18:45:56,075 INFO L276 IsEmpty]: Start isEmpty. Operand 2392 states and 3368 transitions. [2021-12-14 18:45:56,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 315 [2021-12-14 18:45:56,082 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 18:45:56,083 INFO L514 BasicCegarLoop]: trace histogram [15, 15, 15, 11, 11, 7, 7, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-14 18:45:56,083 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-12-14 18:45:56,083 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] === [2021-12-14 18:45:56,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 18:45:56,085 INFO L85 PathProgramCache]: Analyzing trace with hash -1226944759, now seen corresponding path program 1 times [2021-12-14 18:45:56,085 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 18:45:56,085 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [388578877] [2021-12-14 18:45:56,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 18:45:56,085 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 18:45:56,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,659 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2021-12-14 18:45:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,665 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2021-12-14 18:45:56,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,671 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 18:45:56,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,678 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,682 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-14 18:45:56,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,686 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2021-12-14 18:45:56,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,692 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2021-12-14 18:45:56,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,742 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2021-12-14 18:45:56,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,751 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:56,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,759 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:56,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 70 [2021-12-14 18:45:56,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,767 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:45:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,775 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,779 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:56,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,783 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:56,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,786 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2021-12-14 18:45:56,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,792 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 105 [2021-12-14 18:45:56,795 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,800 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,804 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:56,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,807 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:56,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,810 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2021-12-14 18:45:56,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,813 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2021-12-14 18:45:56,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,818 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,822 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,856 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2021-12-14 18:45:56,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,869 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2021-12-14 18:45:56,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,875 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-14 18:45:56,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,882 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2021-12-14 18:45:56,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,888 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2021-12-14 18:45:56,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,896 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,900 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-14 18:45:56,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,904 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2021-12-14 18:45:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:56,992 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2021-12-14 18:45:57,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:45:57,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,119 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-14 18:45:57,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,124 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:57,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2021-12-14 18:45:57,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,136 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 28 [2021-12-14 18:45:57,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,142 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,146 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-14 18:45:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-14 18:45:57,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,152 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2021-12-14 18:45:57,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,155 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2021-12-14 18:45:57,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,159 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-14 18:45:57,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,162 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-14 18:45:57,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2021-12-14 18:45:57,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2021-12-14 18:45:57,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 291 [2021-12-14 18:45:57,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 18:45:57,179 INFO L134 CoverageAnalysis]: Checked inductivity of 718 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 718 trivial. 0 not checked. [2021-12-14 18:45:57,180 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 18:45:57,180 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [388578877] [2021-12-14 18:45:57,180 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [388578877] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 18:45:57,180 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 18:45:57,180 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-12-14 18:45:57,180 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1852532865] [2021-12-14 18:45:57,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 18:45:57,181 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2021-12-14 18:45:57,181 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 18:45:57,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2021-12-14 18:45:57,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2021-12-14 18:45:57,182 INFO L87 Difference]: Start difference. First operand 2392 states and 3368 transitions. Second operand has 8 states, 8 states have (on average 14.25) internal successors, (114), 4 states have internal predecessors, (114), 3 states have call successors, (39), 6 states have call predecessors, (39), 1 states have return successors, (37), 2 states have call predecessors, (37), 2 states have call successors, (37) [2021-12-14 18:45:59,225 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.04s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers [] [2021-12-14 18:46:01,505 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.28s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []