./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.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 fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 --- Real Ultimate output --- This is Ultimate 0.2.2-dev-ff03de6 [2021-12-21 16:11:11,834 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-21 16:11:11,835 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-21 16:11:11,888 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-21 16:11:11,889 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-21 16:11:11,890 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-21 16:11:11,890 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-21 16:11:11,891 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-21 16:11:11,907 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-21 16:11:11,908 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-21 16:11:11,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-21 16:11:11,909 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-21 16:11:11,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-21 16:11:11,910 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-21 16:11:11,911 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-21 16:11:11,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-21 16:11:11,912 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-21 16:11:11,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-21 16:11:11,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-21 16:11:11,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-21 16:11:11,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-21 16:11:11,916 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-21 16:11:11,917 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-21 16:11:11,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-21 16:11:11,919 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-21 16:11:11,921 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-21 16:11:11,921 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-21 16:11:11,924 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-21 16:11:11,925 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-21 16:11:11,926 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-21 16:11:11,926 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-21 16:11:11,927 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-21 16:11:11,927 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-21 16:11:11,928 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-21 16:11:11,929 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-21 16:11:11,930 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-21 16:11:11,931 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-21 16:11:11,931 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-21 16:11:11,931 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-21 16:11:11,931 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-21 16:11:11,932 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-21 16:11:11,934 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-21 16:11:11,952 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-21 16:11:11,955 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-21 16:11:11,956 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-21 16:11:11,956 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-21 16:11:11,956 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-21 16:11:11,957 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-21 16:11:11,957 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-21 16:11:11,957 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-21 16:11:11,957 INFO L138 SettingsManager]: * Use SBE=true [2021-12-21 16:11:11,957 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-21 16:11:11,958 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-21 16:11:11,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-21 16:11:11,958 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-21 16:11:11,958 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-21 16:11:11,959 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-21 16:11:11,959 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-21 16:11:11,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:11:11,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-21 16:11:11,960 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-21 16:11:11,960 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-21 16:11:11,960 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-21 16:11:11,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-21 16:11:11,961 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-21 16:11:11,961 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-21 16:11:11,961 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-21 16:11:11,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-21 16:11:11,961 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> fd18c623be1f9191aaeb26a7b3c18eeb579e4f661e34cc28939d56ae6edd64a3 [2021-12-21 16:11:12,140 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-21 16:11:12,159 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-21 16:11:12,161 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-21 16:11:12,162 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-21 16:11:12,163 INFO L275 PluginConnector]: CDTParser initialized [2021-12-21 16:11:12,164 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-21 16:11:12,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badacd37f/985046f41f6b49bf9a0ed4cee5604369/FLAGcbf41bf24 [2021-12-21 16:11:12,815 INFO L306 CDTParser]: Found 1 translation units. [2021-12-21 16:11:12,816 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-21 16:11:12,850 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badacd37f/985046f41f6b49bf9a0ed4cee5604369/FLAGcbf41bf24 [2021-12-21 16:11:13,235 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/badacd37f/985046f41f6b49bf9a0ed4cee5604369 [2021-12-21 16:11:13,238 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-21 16:11:13,239 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-21 16:11:13,240 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-21 16:11:13,240 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-21 16:11:13,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-21 16:11:13,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:11:13" (1/1) ... [2021-12-21 16:11:13,244 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a1f34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:13, skipping insertion in model container [2021-12-21 16:11:13,244 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.12 04:11:13" (1/1) ... [2021-12-21 16:11:13,249 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-21 16:11:13,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-21 16:11:14,047 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-21 16:11:14,737 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:11:14,771 INFO L203 MainTranslator]: Completed pre-run [2021-12-21 16:11:14,873 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-3.16-rc1/205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i[164502,164515] [2021-12-21 16:11:15,013 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-21 16:11:15,105 INFO L208 MainTranslator]: Completed translation [2021-12-21 16:11:15,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15 WrapperNode [2021-12-21 16:11:15,107 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-21 16:11:15,108 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-21 16:11:15,108 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-21 16:11:15,108 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-21 16:11:15,113 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,272 INFO L137 Inliner]: procedures = 267, calls = 1404, calls flagged for inlining = 132, calls inlined = 127, statements flattened = 3470 [2021-12-21 16:11:15,272 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-21 16:11:15,273 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-21 16:11:15,273 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-21 16:11:15,273 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-21 16:11:15,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,280 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,389 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,409 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-21 16:11:15,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-21 16:11:15,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-21 16:11:15,430 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-21 16:11:15,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (1/1) ... [2021-12-21 16:11:15,439 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-21 16:11:15,447 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-21 16:11:15,457 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 16:11:15,475 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 16:11:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-21 16:11:15,486 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-21 16:11:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-21 16:11:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-21 16:11:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_is_valid [2021-12-21 16:11:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_is_valid [2021-12-21 16:11:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_mac_address [2021-12-21 16:11:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_mac_address [2021-12-21 16:11:15,487 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_open [2021-12-21 16:11:15,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_open [2021-12-21 16:11:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure spi_sync [2021-12-21 16:11:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_sync [2021-12-21 16:11:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-21 16:11:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-21 16:11:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_alloc [2021-12-21 16:11:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_alloc [2021-12-21 16:11:15,488 INFO L130 BoogieDeclarations]: Found specification of procedure free_irq [2021-12-21 16:11:15,488 INFO L138 BoogieDeclarations]: Found implementation of procedure free_irq [2021-12-21 16:11:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure devm_regulator_get [2021-12-21 16:11:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure devm_regulator_get [2021-12-21 16:11:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-21 16:11:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-21 16:11:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-21 16:11:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-21 16:11:15,489 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_resume [2021-12-21 16:11:15,489 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_resume [2021-12-21 16:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-21 16:11:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-21 16:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure activate_suitable_irq_1 [2021-12-21 16:11:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_suitable_irq_1 [2021-12-21 16:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-21 16:11:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-21 16:11:15,490 INFO L130 BoogieDeclarations]: Found specification of procedure netif_stop_queue [2021-12-21 16:11:15,490 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_stop_queue [2021-12-21 16:11:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_rx_mode [2021-12-21 16:11:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_rx_mode [2021-12-21 16:11:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure spinlock_check [2021-12-21 16:11:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure spinlock_check [2021-12-21 16:11:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-21 16:11:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure INIT_LIST_HEAD [2021-12-21 16:11:15,491 INFO L138 BoogieDeclarations]: Found implementation of procedure INIT_LIST_HEAD [2021-12-21 16:11:15,491 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_set_powermode [2021-12-21 16:11:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_set_powermode [2021-12-21 16:11:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure skb_queue_empty [2021-12-21 16:11:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure skb_queue_empty [2021-12-21 16:11:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure memcmp [2021-12-21 16:11:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_stop [2021-12-21 16:11:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_stop [2021-12-21 16:11:15,492 INFO L130 BoogieDeclarations]: Found specification of procedure netif_running [2021-12-21 16:11:15,492 INFO L138 BoogieDeclarations]: Found implementation of procedure netif_running [2021-12-21 16:11:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-21 16:11:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure eeprom_93cx6_wren [2021-12-21 16:11:15,493 INFO L138 BoogieDeclarations]: Found implementation of procedure eeprom_93cx6_wren [2021-12-21 16:11:15,493 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_set_remove [2021-12-21 16:11:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_set_remove [2021-12-21 16:11:15,494 INFO L130 BoogieDeclarations]: Found specification of procedure strlcpy [2021-12-21 16:11:15,494 INFO L138 BoogieDeclarations]: Found implementation of procedure strlcpy [2021-12-21 16:11:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure eth_validate_addr [2021-12-21 16:11:15,495 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_validate_addr [2021-12-21 16:11:15,495 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_u32 [2021-12-21 16:11:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_is_err [2021-12-21 16:11:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_is_err [2021-12-21 16:11:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-21 16:11:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-21 16:11:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_release [2021-12-21 16:11:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_release [2021-12-21 16:11:15,496 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_add_tail [2021-12-21 16:11:15,496 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_add_tail [2021-12-21 16:11:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure eth_change_mtu [2021-12-21 16:11:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure eth_change_mtu [2021-12-21 16:11:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-21 16:11:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-21 16:11:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_priv [2021-12-21 16:11:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_priv [2021-12-21 16:11:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure netdev_get_tx_queue [2021-12-21 16:11:15,497 INFO L138 BoogieDeclarations]: Found implementation of procedure netdev_get_tx_queue [2021-12-21 16:11:15,497 INFO L130 BoogieDeclarations]: Found specification of procedure lockdep_init_map [2021-12-21 16:11:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure lockdep_init_map [2021-12-21 16:11:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock [2021-12-21 16:11:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock [2021-12-21 16:11:15,498 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_irq [2021-12-21 16:11:15,498 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_irq [2021-12-21 16:11:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-21 16:11:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-21 16:11:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-21 16:11:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_enable [2021-12-21 16:11:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_enable [2021-12-21 16:11:15,499 INFO L130 BoogieDeclarations]: Found specification of procedure dev_get_drvdata [2021-12-21 16:11:15,499 INFO L138 BoogieDeclarations]: Found implementation of procedure dev_get_drvdata [2021-12-21 16:11:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure __raw_spin_lock_init [2021-12-21 16:11:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure __raw_spin_lock_init [2021-12-21 16:11:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-21 16:11:15,500 INFO L130 BoogieDeclarations]: Found specification of procedure flush_work [2021-12-21 16:11:15,500 INFO L138 BoogieDeclarations]: Found implementation of procedure flush_work [2021-12-21 16:11:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-21 16:11:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure free_netdev [2021-12-21 16:11:15,501 INFO L138 BoogieDeclarations]: Found implementation of procedure free_netdev [2021-12-21 16:11:15,501 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rx_1msg [2021-12-21 16:11:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rx_1msg [2021-12-21 16:11:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure regulator_disable [2021-12-21 16:11:15,502 INFO L138 BoogieDeclarations]: Found implementation of procedure regulator_disable [2021-12-21 16:11:15,502 INFO L130 BoogieDeclarations]: Found specification of procedure reg_check_1 [2021-12-21 16:11:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure reg_check_1 [2021-12-21 16:11:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-12-21 16:11:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-12-21 16:11:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_skb_free [2021-12-21 16:11:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_skb_free [2021-12-21 16:11:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_eeprom_claim [2021-12-21 16:11:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_eeprom_claim [2021-12-21 16:11:15,503 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_soft_reset [2021-12-21 16:11:15,503 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_soft_reset [2021-12-21 16:11:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-21 16:11:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure disable_suitable_irq_1 [2021-12-21 16:11:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure disable_suitable_irq_1 [2021-12-21 16:11:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-21 16:11:15,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-21 16:11:15,504 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg [2021-12-21 16:11:15,505 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg [2021-12-21 16:11:15,505 INFO L130 BoogieDeclarations]: Found specification of procedure gpio_set_value [2021-12-21 16:11:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure gpio_set_value [2021-12-21 16:11:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg8 [2021-12-21 16:11:15,507 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg8 [2021-12-21 16:11:15,507 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-21 16:11:15,511 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_rdreg16 [2021-12-21 16:11:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_rdreg16 [2021-12-21 16:11:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-21 16:11:15,512 INFO L130 BoogieDeclarations]: Found specification of procedure is_valid_ether_addr [2021-12-21 16:11:15,512 INFO L138 BoogieDeclarations]: Found implementation of procedure is_valid_ether_addr [2021-12-21 16:11:15,514 INFO L130 BoogieDeclarations]: Found specification of procedure __const_udelay [2021-12-21 16:11:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure __const_udelay [2021-12-21 16:11:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-21 16:11:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_1 [2021-12-21 16:11:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_1 [2021-12-21 16:11:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure spi_message_init [2021-12-21 16:11:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure spi_message_init [2021-12-21 16:11:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_irq_2 [2021-12-21 16:11:15,515 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_irq_2 [2021-12-21 16:11:15,515 INFO L130 BoogieDeclarations]: Found specification of procedure PTR_ERR [2021-12-21 16:11:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure PTR_ERR [2021-12-21 16:11:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_net_ioctl [2021-12-21 16:11:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_net_ioctl [2021-12-21 16:11:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure schedule_work [2021-12-21 16:11:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure schedule_work [2021-12-21 16:11:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure __init_work [2021-12-21 16:11:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure __init_work [2021-12-21 16:11:15,516 INFO L130 BoogieDeclarations]: Found specification of procedure warn_slowpath_null [2021-12-21 16:11:15,516 INFO L138 BoogieDeclarations]: Found implementation of procedure warn_slowpath_null [2021-12-21 16:11:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_write_mac_addr [2021-12-21 16:11:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_write_mac_addr [2021-12-21 16:11:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_wrreg16 [2021-12-21 16:11:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_wrreg16 [2021-12-21 16:11:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure spin_lock [2021-12-21 16:11:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_lock [2021-12-21 16:11:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-21 16:11:15,517 INFO L130 BoogieDeclarations]: Found specification of procedure ks8851_suspend [2021-12-21 16:11:15,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ks8851_suspend [2021-12-21 16:11:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure request_threaded_irq [2021-12-21 16:11:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure request_threaded_irq [2021-12-21 16:11:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-21 16:11:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-21 16:11:15,518 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-21 16:11:15,518 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-21 16:11:16,006 INFO L234 CfgBuilder]: Building ICFG [2021-12-21 16:11:16,009 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-21 16:11:16,243 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-21 16:11:38,401 INFO L275 CfgBuilder]: Performing block encoding [2021-12-21 16:11:38,417 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-21 16:11:38,418 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2021-12-21 16:11:38,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:11:38 BoogieIcfgContainer [2021-12-21 16:11:38,421 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-21 16:11:38,422 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-21 16:11:38,422 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-21 16:11:38,425 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-21 16:11:38,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.12 04:11:13" (1/3) ... [2021-12-21 16:11:38,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10187ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:11:38, skipping insertion in model container [2021-12-21 16:11:38,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.12 04:11:15" (2/3) ... [2021-12-21 16:11:38,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@10187ba7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.12 04:11:38, skipping insertion in model container [2021-12-21 16:11:38,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.12 04:11:38" (3/3) ... [2021-12-21 16:11:38,428 INFO L111 eAbstractionObserver]: Analyzing ICFG 205_9a_array_safes_linux-3.16-rc1.tar.xz-205_9a-drivers--net--ethernet--micrel--ks8851.ko-entry_point.cil.out.i [2021-12-21 16:11:38,432 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-21 16:11:38,432 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-21 16:11:38,470 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-21 16:11:38,474 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 16:11:38,474 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-21 16:11:38,519 INFO L276 IsEmpty]: Start isEmpty. Operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) [2021-12-21 16:11:38,530 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2021-12-21 16:11:38,531 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:38,532 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:38,532 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:38,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:38,538 INFO L85 PathProgramCache]: Analyzing trace with hash 1826626141, now seen corresponding path program 1 times [2021-12-21 16:11:38,544 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:38,545 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013201768] [2021-12-21 16:11:38,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:38,545 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:38,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:39,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,148 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,156 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:39,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:39,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,170 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:39,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:39,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:39,201 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-21 16:11:39,201 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:39,202 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013201768] [2021-12-21 16:11:39,202 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2013201768] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:39,202 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:39,203 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-21 16:11:39,204 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704762188] [2021-12-21 16:11:39,205 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:39,208 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-21 16:11:39,208 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:39,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-21 16:11:39,230 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-21 16:11:39,234 INFO L87 Difference]: Start difference. First operand has 1166 states, 828 states have (on average 1.3707729468599035) internal successors, (1135), 849 states have internal predecessors, (1135), 267 states have call successors, (267), 72 states have call predecessors, (267), 71 states have return successors, (257), 256 states have call predecessors, (257), 257 states have call successors, (257) Second operand has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 16:11:41,282 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 [] [2021-12-21 16:11:43,325 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 [] [2021-12-21 16:11:48,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:48,280 INFO L93 Difference]: Finished difference Result 3535 states and 5169 transitions. [2021-12-21 16:11:48,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-12-21 16:11:48,282 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 56 [2021-12-21 16:11:48,282 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:48,308 INFO L225 Difference]: With dead ends: 3535 [2021-12-21 16:11:48,308 INFO L226 Difference]: Without dead ends: 2346 [2021-12-21 16:11:48,318 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2021-12-21 16:11:48,325 INFO L933 BasicCegarLoop]: 1827 mSDtfsCounter, 1952 mSDsluCounter, 2252 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 616 mSolverCounterUnsat, 2 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 8.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2121 SdHoareTripleChecker+Valid, 4079 SdHoareTripleChecker+Invalid, 1437 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 616 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 2 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 8.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:48,326 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2121 Valid, 4079 Invalid, 1437 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [616 Valid, 819 Invalid, 2 Unknown, 0 Unchecked, 8.7s Time] [2021-12-21 16:11:48,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2346 states. [2021-12-21 16:11:48,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2346 to 2244. [2021-12-21 16:11:48,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2244 states, 1605 states have (on average 1.3532710280373832) internal successors, (2172), 1619 states have internal predecessors, (2172), 498 states have call successors, (498), 141 states have call predecessors, (498), 140 states have return successors, (497), 495 states have call predecessors, (497), 497 states have call successors, (497) [2021-12-21 16:11:48,487 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2244 states to 2244 states and 3167 transitions. [2021-12-21 16:11:48,489 INFO L78 Accepts]: Start accepts. Automaton has 2244 states and 3167 transitions. Word has length 56 [2021-12-21 16:11:48,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:11:48,490 INFO L470 AbstractCegarLoop]: Abstraction has 2244 states and 3167 transitions. [2021-12-21 16:11:48,490 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 7.0) internal successors, (28), 3 states have internal predecessors, (28), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 16:11:48,490 INFO L276 IsEmpty]: Start isEmpty. Operand 2244 states and 3167 transitions. [2021-12-21 16:11:48,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-12-21 16:11:48,500 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:48,500 INFO L514 BasicCegarLoop]: trace histogram [6, 6, 6, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 16:11:48,501 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-12-21 16:11:48,503 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:48,504 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:48,504 INFO L85 PathProgramCache]: Analyzing trace with hash -78533526, now seen corresponding path program 1 times [2021-12-21 16:11:48,504 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:48,504 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1614200364] [2021-12-21 16:11:48,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:48,504 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:48,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,864 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:48,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,880 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:48,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,887 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:48,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,894 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:48,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,901 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:48,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,910 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:48,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:48,920 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 60 trivial. 0 not checked. [2021-12-21 16:11:48,920 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:48,920 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1614200364] [2021-12-21 16:11:48,921 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1614200364] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:48,921 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:48,921 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-12-21 16:11:48,921 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [779568817] [2021-12-21 16:11:48,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:48,923 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-12-21 16:11:48,923 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:48,923 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-12-21 16:11:48,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2021-12-21 16:11:48,924 INFO L87 Difference]: Start difference. First operand 2244 states and 3167 transitions. Second operand has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 16:11:50,961 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 [] [2021-12-21 16:11:57,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-21 16:11:57,101 INFO L93 Difference]: Finished difference Result 6893 states and 9861 transitions. [2021-12-21 16:11:57,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-12-21 16:11:57,102 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 58 [2021-12-21 16:11:57,102 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-12-21 16:11:57,124 INFO L225 Difference]: With dead ends: 6893 [2021-12-21 16:11:57,125 INFO L226 Difference]: Without dead ends: 4658 [2021-12-21 16:11:57,135 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-12-21 16:11:57,136 INFO L933 BasicCegarLoop]: 1792 mSDtfsCounter, 1968 mSDsluCounter, 5472 mSDsCounter, 0 mSdLazyCounter, 1317 mSolverCounterSat, 618 mSolverCounterUnsat, 1 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 7.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2135 SdHoareTripleChecker+Valid, 7264 SdHoareTripleChecker+Invalid, 1936 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 618 IncrementalHoareTripleChecker+Valid, 1317 IncrementalHoareTripleChecker+Invalid, 1 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.7s IncrementalHoareTripleChecker+Time [2021-12-21 16:11:57,137 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [2135 Valid, 7264 Invalid, 1936 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [618 Valid, 1317 Invalid, 1 Unknown, 0 Unchecked, 7.7s Time] [2021-12-21 16:11:57,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4658 states. [2021-12-21 16:11:57,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4658 to 4492. [2021-12-21 16:11:57,272 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4492 states, 3212 states have (on average 1.3530510585305107) internal successors, (4346), 3248 states have internal predecessors, (4346), 989 states have call successors, (989), 281 states have call predecessors, (989), 290 states have return successors, (1059), 986 states have call predecessors, (1059), 988 states have call successors, (1059) [2021-12-21 16:11:57,288 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4492 states to 4492 states and 6394 transitions. [2021-12-21 16:11:57,290 INFO L78 Accepts]: Start accepts. Automaton has 4492 states and 6394 transitions. Word has length 58 [2021-12-21 16:11:57,290 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-12-21 16:11:57,290 INFO L470 AbstractCegarLoop]: Abstraction has 4492 states and 6394 transitions. [2021-12-21 16:11:57,290 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 2 states have call successors, (7), 2 states have call predecessors, (7), 1 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2021-12-21 16:11:57,291 INFO L276 IsEmpty]: Start isEmpty. Operand 4492 states and 6394 transitions. [2021-12-21 16:11:57,303 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 261 [2021-12-21 16:11:57,303 INFO L506 BasicCegarLoop]: Found error trace [2021-12-21 16:11:57,304 INFO L514 BasicCegarLoop]: trace histogram [7, 7, 7, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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] [2021-12-21 16:11:57,304 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-12-21 16:11:57,304 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-21 16:11:57,304 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-21 16:11:57,305 INFO L85 PathProgramCache]: Analyzing trace with hash -115610240, now seen corresponding path program 1 times [2021-12-21 16:11:57,305 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-21 16:11:57,305 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2142048290] [2021-12-21 16:11:57,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-21 16:11:57,305 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-21 16:11:57,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,600 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:57,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,609 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:57,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,615 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-21 16:11:57,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,620 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-21 16:11:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,627 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:57,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,634 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2021-12-21 16:11:57,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,694 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2021-12-21 16:11:57,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,755 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:57,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:57,763 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2021-12-21 16:11:57,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,105 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:58,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,113 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2021-12-21 16:11:58,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2021-12-21 16:11:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,192 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2021-12-21 16:11:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,277 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2021-12-21 16:11:58,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,291 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 16:11:58,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,297 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2021-12-21 16:11:58,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,310 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 16:11:58,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,315 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2021-12-21 16:11:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2021-12-21 16:11:58,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,324 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2021-12-21 16:11:58,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,329 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2021-12-21 16:11:58,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,334 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2021-12-21 16:11:58,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,352 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 16:11:58,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,361 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2021-12-21 16:11:58,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,375 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 16:11:58,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,382 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2021-12-21 16:11:58,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,419 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:58,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,498 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-21 16:11:58,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,512 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:58,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,518 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-21 16:11:58,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,523 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2021-12-21 16:11:58,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,536 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2021-12-21 16:11:58,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,544 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2021-12-21 16:11:58,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,550 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2021-12-21 16:11:58,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,559 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2021-12-21 16:11:58,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,567 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:58,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,656 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 171 [2021-12-21 16:11:58,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,663 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2021-12-21 16:11:58,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,670 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 185 [2021-12-21 16:11:58,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-21 16:11:58,678 INFO L134 CoverageAnalysis]: Checked inductivity of 239 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2021-12-21 16:11:58,678 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-21 16:11:58,678 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2142048290] [2021-12-21 16:11:58,679 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2142048290] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-21 16:11:58,680 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-21 16:11:58,680 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-12-21 16:11:58,680 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1173492779] [2021-12-21 16:11:58,680 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-21 16:11:58,682 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-12-21 16:11:58,682 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-21 16:11:58,683 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-12-21 16:11:58,683 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=150, Unknown=0, NotChecked=0, Total=182 [2021-12-21 16:11:58,683 INFO L87 Difference]: Start difference. First operand 4492 states and 6394 transitions. Second operand has 14 states, 13 states have (on average 8.76923076923077) internal successors, (114), 7 states have internal predecessors, (114), 3 states have call successors, (35), 7 states have call predecessors, (35), 3 states have return successors, (34), 4 states have call predecessors, (34), 3 states have call successors, (34) [2021-12-21 16:12:00,741 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.06s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []