./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.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-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.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 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a --- Real Ultimate output --- This is Ultimate 0.2.2-839c364b5d67a0f615c82cb70ab247790648d4a9-839c364 [2021-12-14 17:51:20,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-14 17:51:20,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-14 17:51:20,367 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-14 17:51:20,372 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-14 17:51:20,373 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-14 17:51:20,375 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-14 17:51:20,379 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-14 17:51:20,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-14 17:51:20,382 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-14 17:51:20,383 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-14 17:51:20,383 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-14 17:51:20,384 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-14 17:51:20,386 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-14 17:51:20,387 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-14 17:51:20,389 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-14 17:51:20,390 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-14 17:51:20,391 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-14 17:51:20,392 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-14 17:51:20,393 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-14 17:51:20,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-14 17:51:20,395 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-14 17:51:20,396 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-14 17:51:20,396 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-14 17:51:20,398 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-14 17:51:20,398 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-14 17:51:20,398 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-14 17:51:20,399 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-14 17:51:20,399 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-14 17:51:20,400 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-14 17:51:20,400 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-14 17:51:20,400 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-14 17:51:20,401 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-14 17:51:20,401 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-14 17:51:20,402 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-14 17:51:20,402 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-14 17:51:20,403 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-14 17:51:20,403 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-14 17:51:20,403 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-14 17:51:20,404 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-14 17:51:20,404 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-14 17:51:20,405 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-14 17:51:20,419 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-14 17:51:20,420 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-14 17:51:20,420 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-14 17:51:20,420 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-14 17:51:20,421 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-14 17:51:20,421 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-14 17:51:20,421 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-14 17:51:20,421 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-14 17:51:20,422 INFO L138 SettingsManager]: * Use SBE=true [2021-12-14 17:51:20,422 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-14 17:51:20,422 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-14 17:51:20,422 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-14 17:51:20,422 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-14 17:51:20,423 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-14 17:51:20,423 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-14 17:51:20,423 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-14 17:51:20,423 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-14 17:51:20,423 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-14 17:51:20,423 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-14 17:51:20,424 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-14 17:51:20,424 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-14 17:51:20,424 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:51:20,424 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-14 17:51:20,424 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-14 17:51:20,425 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-14 17:51:20,426 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-14 17:51:20,426 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a [2021-12-14 17:51:20,607 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-14 17:51:20,627 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-14 17:51:20,629 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-14 17:51:20,630 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-14 17:51:20,631 INFO L275 PluginConnector]: CDTParser initialized [2021-12-14 17:51:20,632 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-14 17:51:20,684 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a2be34/5798569d22da4eacaf6362066559963e/FLAG0bdcc163b [2021-12-14 17:51:21,333 INFO L306 CDTParser]: Found 1 translation units. [2021-12-14 17:51:21,334 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-linux-3.16-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-14 17:51:21,369 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a2be34/5798569d22da4eacaf6362066559963e/FLAG0bdcc163b [2021-12-14 17:51:21,467 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b67a2be34/5798569d22da4eacaf6362066559963e [2021-12-14 17:51:21,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-14 17:51:21,472 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-14 17:51:21,474 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-14 17:51:21,475 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-14 17:51:21,477 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-14 17:51:21,478 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:21" (1/1) ... [2021-12-14 17:51:21,479 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1e5b3e44 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:21, skipping insertion in model container [2021-12-14 17:51:21,479 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.12 05:51:21" (1/1) ... [2021-12-14 17:51:21,484 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-14 17:51:21,598 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-14 17:51:21,930 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-14 17:51:21,932 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2021-12-14 17:51:22,250 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2021-12-14 17:51:22,847 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:51:22,874 INFO L203 MainTranslator]: Completed pre-run [2021-12-14 17:51:22,951 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-14 17:51:22,952 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name store at C: (*store)(struct kobject___0 * , struct attribute___0 * , char const * , size_t ) [3826-3827] [2021-12-14 17:51:22,964 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-rc1/43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i[120230,120243] [2021-12-14 17:51:23,132 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-14 17:51:23,218 INFO L208 MainTranslator]: Completed translation [2021-12-14 17:51:23,218 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23 WrapperNode [2021-12-14 17:51:23,218 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-14 17:51:23,219 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-14 17:51:23,219 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-14 17:51:23,220 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-14 17:51:23,225 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,302 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,431 INFO L137 Inliner]: procedures = 228, calls = 2575, calls flagged for inlining = 108, calls inlined = 106, statements flattened = 5652 [2021-12-14 17:51:23,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-14 17:51:23,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-14 17:51:23,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-14 17:51:23,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-14 17:51:23,439 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,439 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,479 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,480 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,626 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,667 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,691 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-14 17:51:23,693 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-14 17:51:23,693 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-14 17:51:23,693 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-14 17:51:23,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (1/1) ... [2021-12-14 17:51:23,699 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-14 17:51:23,708 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-14 17:51:23,723 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 17:51:23,742 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 17:51:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-14 17:51:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-14 17:51:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-14 17:51:23,752 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-14 17:51:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-14 17:51:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-14 17:51:23,752 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-14 17:51:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-14 17:51:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-14 17:51:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-14 17:51:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-14 17:51:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-14 17:51:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushRxFIFO [2021-12-14 17:51:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushRxFIFO [2021-12-14 17:51:23,753 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-14 17:51:23,753 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-14 17:51:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2021-12-14 17:51:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2021-12-14 17:51:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-14 17:51:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-14 17:51:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure rocket_paranoia_check [2021-12-14 17:51:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure rocket_paranoia_check [2021-12-14 17:51:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-14 17:51:23,754 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-14 17:51:23,754 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-14 17:51:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-14 17:51:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-14 17:51:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-14 17:51:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure rp_wait_until_sent [2021-12-14 17:51:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_wait_until_sent [2021-12-14 17:51:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushTxFIFO [2021-12-14 17:51:23,755 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushTxFIFO [2021-12-14 17:51:23,755 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-14 17:51:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-14 17:51:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2021-12-14 17:51:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2021-12-14 17:51:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-14 17:51:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-14 17:51:23,756 INFO L130 BoogieDeclarations]: Found specification of procedure sInW [2021-12-14 17:51:23,756 INFO L138 BoogieDeclarations]: Found implementation of procedure sInW [2021-12-14 17:51:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-14 17:51:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-14 17:51:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure GetLineNumber [2021-12-14 17:51:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure GetLineNumber [2021-12-14 17:51:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-14 17:51:23,757 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-14 17:51:23,757 INFO L130 BoogieDeclarations]: Found specification of procedure rp_send_xchar [2021-12-14 17:51:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_send_xchar [2021-12-14 17:51:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure out32 [2021-12-14 17:51:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure out32 [2021-12-14 17:51:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure sInB [2021-12-14 17:51:23,758 INFO L138 BoogieDeclarations]: Found implementation of procedure sInB [2021-12-14 17:51:23,758 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2021-12-14 17:51:23,759 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2021-12-14 17:51:23,759 INFO L130 BoogieDeclarations]: Found specification of procedure rp_start [2021-12-14 17:51:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_start [2021-12-14 17:51:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopID [2021-12-14 17:51:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopID [2021-12-14 17:51:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-14 17:51:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-14 17:51:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-14 17:51:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-14 17:51:23,760 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-14 17:51:23,760 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-14 17:51:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-14 17:51:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-14 17:51:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-14 17:51:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure rp_hangup [2021-12-14 17:51:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_hangup [2021-12-14 17:51:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-14 17:51:23,761 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-14 17:51:23,761 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-14 17:51:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-14 17:51:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-14 17:51:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure sSetInterfaceMode [2021-12-14 17:51:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure sSetInterfaceMode [2021-12-14 17:51:23,762 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-14 17:51:23,762 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-14 17:51:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure rp_write_room [2021-12-14 17:51:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_write_room [2021-12-14 17:51:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmset [2021-12-14 17:51:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmset [2021-12-14 17:51:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-14 17:51:23,763 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-14 17:51:23,763 INFO L130 BoogieDeclarations]: Found specification of procedure init_r_port [2021-12-14 17:51:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure init_r_port [2021-12-14 17:51:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure rp_ioctl [2021-12-14 17:51:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_ioctl [2021-12-14 17:51:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure sModemReset [2021-12-14 17:51:23,764 INFO L138 BoogieDeclarations]: Found implementation of procedure sModemReset [2021-12-14 17:51:23,764 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-14 17:51:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-14 17:51:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-14 17:51:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-14 17:51:23,765 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-14 17:51:23,765 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-14 17:51:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-14 17:51:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure rp_break [2021-12-14 17:51:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_break [2021-12-14 17:51:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-14 17:51:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-14 17:51:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-14 17:51:23,766 INFO L130 BoogieDeclarations]: Found specification of procedure rp_put_char [2021-12-14 17:51:23,766 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_put_char [2021-12-14 17:51:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-14 17:51:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-14 17:51:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-14 17:51:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure rp_unthrottle [2021-12-14 17:51:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_unthrottle [2021-12-14 17:51:23,767 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-14 17:51:23,767 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-14 17:51:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-14 17:51:23,768 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-14 17:51:23,768 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-14 17:51:23,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-14 17:51:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-14 17:51:23,770 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-14 17:51:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-14 17:51:23,770 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-14 17:51:23,772 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-14 17:51:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-14 17:51:23,772 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-14 17:51:23,772 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-14 17:51:23,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-14 17:51:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure sPCIModemReset [2021-12-14 17:51:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure sPCIModemReset [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-14 17:51:23,777 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-14 17:51:23,777 INFO L130 BoogieDeclarations]: Found specification of procedure rp_flush_buffer [2021-12-14 17:51:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_flush_buffer [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure rp_chars_in_buffer [2021-12-14 17:51:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_chars_in_buffer [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure configure_r_port [2021-12-14 17:51:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_r_port [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-14 17:51:23,778 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-14 17:51:23,778 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-14 17:51:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-14 17:51:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure sOutW [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutW [2021-12-14 17:51:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-14 17:51:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure sDisInterrupts [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure sDisInterrupts [2021-12-14 17:51:23,779 INFO L130 BoogieDeclarations]: Found specification of procedure rp_set_termios [2021-12-14 17:51:23,779 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_set_termios [2021-12-14 17:51:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure sOutB [2021-12-14 17:51:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutB [2021-12-14 17:51:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure rp_throttle [2021-12-14 17:51:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_throttle [2021-12-14 17:51:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmget [2021-12-14 17:51:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmget [2021-12-14 17:51:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2021-12-14 17:51:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2021-12-14 17:51:23,780 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopNumChan [2021-12-14 17:51:23,780 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopNumChan [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-14 17:51:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-14 17:51:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-14 17:51:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-14 17:51:23,781 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-14 17:51:23,781 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-14 17:51:23,782 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-14 17:51:24,269 INFO L236 CfgBuilder]: Building ICFG [2021-12-14 17:51:24,271 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-14 17:51:24,767 INFO L768 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-14 17:52:32,464 INFO L277 CfgBuilder]: Performing block encoding [2021-12-14 17:52:32,477 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-14 17:52:32,477 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-14 17:52:32,480 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:32 BoogieIcfgContainer [2021-12-14 17:52:32,480 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-14 17:52:32,481 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-14 17:52:32,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-14 17:52:32,484 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-14 17:52:32,484 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.12 05:51:21" (1/3) ... [2021-12-14 17:52:32,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465a7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:32, skipping insertion in model container [2021-12-14 17:52:32,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.12 05:51:23" (2/3) ... [2021-12-14 17:52:32,485 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3465a7fe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.12 05:52:32, skipping insertion in model container [2021-12-14 17:52:32,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.12 05:52:32" (3/3) ... [2021-12-14 17:52:32,486 INFO L111 eAbstractionObserver]: Analyzing ICFG 43_2a_consumption_linux-3.16-rc1.tar.xz-43_2a-drivers--tty--rocket.ko-entry_point.cil.out.i [2021-12-14 17:52:32,489 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-14 17:52:32,489 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-14 17:52:32,523 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-14 17:52:32,530 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 17:52:32,531 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-14 17:52:32,583 INFO L276 IsEmpty]: Start isEmpty. Operand has 1913 states, 1339 states have (on average 1.3756534727408514) internal successors, (1842), 1373 states have internal predecessors, (1842), 494 states have call successors, (494), 79 states have call predecessors, (494), 78 states have return successors, (489), 482 states have call predecessors, (489), 489 states have call successors, (489) [2021-12-14 17:52:32,591 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-14 17:52:32,592 INFO L506 BasicCegarLoop]: Found error trace [2021-12-14 17:52:32,592 INFO L514 BasicCegarLoop]: trace histogram [4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 17:52:32,593 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-14 17:52:32,596 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-14 17:52:32,597 INFO L85 PathProgramCache]: Analyzing trace with hash -1200074208, now seen corresponding path program 1 times [2021-12-14 17:52:32,603 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-14 17:52:32,603 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154660726] [2021-12-14 17:52:32,604 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-14 17:52:32,604 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-14 17:52:32,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,220 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-14 17:52:33,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,227 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-14 17:52:33,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,235 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-14 17:52:33,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-14 17:52:33,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-14 17:52:33,248 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-14 17:52:33,248 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-14 17:52:33,248 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154660726] [2021-12-14 17:52:33,249 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154660726] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-14 17:52:33,249 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-14 17:52:33,249 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-14 17:52:33,250 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843286814] [2021-12-14 17:52:33,251 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-14 17:52:33,253 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-14 17:52:33,254 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-14 17:52:33,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-14 17:52:33,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-14 17:52:33,274 INFO L87 Difference]: Start difference. First operand has 1913 states, 1339 states have (on average 1.3756534727408514) internal successors, (1842), 1373 states have internal predecessors, (1842), 494 states have call successors, (494), 79 states have call predecessors, (494), 78 states have return successors, (489), 482 states have call predecessors, (489), 489 states have call successors, (489) 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, (6), 2 states have call predecessors, (6), 1 states have return successors, (4), 1 states have call predecessors, (4), 1 states have call successors, (4) [2021-12-14 17:52:35,334 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []