./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 ae007674 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-dev-ae00767 [2021-12-28 04:03:49,632 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-28 04:03:49,634 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-28 04:03:49,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-28 04:03:49,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-28 04:03:49,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-28 04:03:49,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-28 04:03:49,675 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-28 04:03:49,676 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-28 04:03:49,684 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-28 04:03:49,685 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-28 04:03:49,688 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-28 04:03:49,688 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-28 04:03:49,690 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-28 04:03:49,691 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-28 04:03:49,693 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-28 04:03:49,694 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-28 04:03:49,694 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-28 04:03:49,696 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-28 04:03:49,700 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-28 04:03:49,701 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-28 04:03:49,701 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-28 04:03:49,702 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-28 04:03:49,703 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-28 04:03:49,708 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-28 04:03:49,708 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-28 04:03:49,708 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-28 04:03:49,709 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-28 04:03:49,709 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-28 04:03:49,710 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-28 04:03:49,710 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-28 04:03:49,711 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-28 04:03:49,712 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-28 04:03:49,712 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-28 04:03:49,713 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-28 04:03:49,713 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-28 04:03:49,714 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-28 04:03:49,714 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-28 04:03:49,714 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-28 04:03:49,715 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-28 04:03:49,716 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-28 04:03:49,716 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-28 04:03:49,740 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-28 04:03:49,741 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-28 04:03:49,742 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-28 04:03:49,742 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-28 04:03:49,742 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-28 04:03:49,742 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-28 04:03:49,743 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-28 04:03:49,744 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-28 04:03:49,744 INFO L138 SettingsManager]: * Use SBE=true [2021-12-28 04:03:49,744 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-28 04:03:49,745 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-28 04:03:49,746 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-28 04:03:49,746 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-28 04:03:49,746 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-28 04:03:49,746 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:49,746 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-28 04:03:49,746 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-28 04:03:49,747 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-28 04:03:49,747 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-28 04:03:49,747 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-28 04:03:49,751 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-28 04:03:49,752 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-28 04:03:49,752 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-28 04:03:49,752 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a [2021-12-28 04:03:49,980 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-28 04:03:50,001 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-28 04:03:50,004 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-28 04:03:50,005 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-28 04:03:50,005 INFO L275 PluginConnector]: CDTParser initialized [2021-12-28 04:03:50,006 INFO L432 ainManager$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 [2021-12-28 04:03:50,049 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563ef2e78/ce56830824064895ae6d0eee9d1d8f67/FLAG29a0d75e1 [2021-12-28 04:03:50,725 INFO L306 CDTParser]: Found 1 translation units. [2021-12-28 04:03:50,726 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 [2021-12-28 04:03:50,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563ef2e78/ce56830824064895ae6d0eee9d1d8f67/FLAG29a0d75e1 [2021-12-28 04:03:51,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/563ef2e78/ce56830824064895ae6d0eee9d1d8f67 [2021-12-28 04:03:51,080 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-28 04:03:51,081 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-28 04:03:51,083 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:51,083 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-28 04:03:51,086 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-28 04:03:51,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:51" (1/1) ... [2021-12-28 04:03:51,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f8399d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:51, skipping insertion in model container [2021-12-28 04:03:51,105 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.12 04:03:51" (1/1) ... [2021-12-28 04:03:51,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-28 04:03:51,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-28 04:03:51,485 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-28 04:03:51,485 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] [2021-12-28 04:03:51,837 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] [2021-12-28 04:03:52,526 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:52,568 INFO L203 MainTranslator]: Completed pre-run [2021-12-28 04:03:52,627 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-28 04:03:52,628 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] [2021-12-28 04:03:52,643 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] [2021-12-28 04:03:52,822 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-28 04:03:52,970 INFO L208 MainTranslator]: Completed translation [2021-12-28 04:03:52,970 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52 WrapperNode [2021-12-28 04:03:52,970 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-28 04:03:52,974 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:52,974 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-28 04:03:52,974 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-28 04:03:52,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,069 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,213 INFO L137 Inliner]: procedures = 228, calls = 2575, calls flagged for inlining = 108, calls inlined = 106, statements flattened = 5652 [2021-12-28 04:03:53,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-28 04:03:53,214 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-28 04:03:53,214 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-28 04:03:53,214 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-28 04:03:53,220 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,220 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,291 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,292 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,387 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,407 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,426 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,449 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-28 04:03:53,450 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-28 04:03:53,451 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-28 04:03:53,451 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-28 04:03:53,451 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (1/1) ... [2021-12-28 04:03:53,456 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-28 04:03:53,463 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-28 04:03:53,485 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) [2021-12-28 04:03:53,487 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 [2021-12-28 04:03:53,512 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-28 04:03:53,512 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-28 04:03:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-28 04:03:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-28 04:03:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-28 04:03:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-28 04:03:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-28 04:03:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-28 04:03:53,513 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-28 04:03:53,513 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-28 04:03:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-28 04:03:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-28 04:03:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushRxFIFO [2021-12-28 04:03:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushRxFIFO [2021-12-28 04:03:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-28 04:03:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-28 04:03:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2021-12-28 04:03:53,514 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2021-12-28 04:03:53,514 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-28 04:03:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-28 04:03:53,515 INFO L130 BoogieDeclarations]: Found specification of procedure rocket_paranoia_check [2021-12-28 04:03:53,515 INFO L138 BoogieDeclarations]: Found implementation of procedure rocket_paranoia_check [2021-12-28 04:03:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-28 04:03:53,519 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-28 04:03:53,519 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-28 04:03:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-28 04:03:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-28 04:03:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-28 04:03:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure rp_wait_until_sent [2021-12-28 04:03:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_wait_until_sent [2021-12-28 04:03:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushTxFIFO [2021-12-28 04:03:53,520 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushTxFIFO [2021-12-28 04:03:53,520 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-28 04:03:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-28 04:03:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2021-12-28 04:03:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2021-12-28 04:03:53,521 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-28 04:03:53,521 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-28 04:03:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure sInW [2021-12-28 04:03:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure sInW [2021-12-28 04:03:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-28 04:03:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-28 04:03:53,522 INFO L130 BoogieDeclarations]: Found specification of procedure GetLineNumber [2021-12-28 04:03:53,522 INFO L138 BoogieDeclarations]: Found implementation of procedure GetLineNumber [2021-12-28 04:03:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-28 04:03:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-28 04:03:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure rp_send_xchar [2021-12-28 04:03:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_send_xchar [2021-12-28 04:03:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure out32 [2021-12-28 04:03:53,523 INFO L138 BoogieDeclarations]: Found implementation of procedure out32 [2021-12-28 04:03:53,523 INFO L130 BoogieDeclarations]: Found specification of procedure sInB [2021-12-28 04:03:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure sInB [2021-12-28 04:03:53,524 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2021-12-28 04:03:53,524 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2021-12-28 04:03:53,525 INFO L130 BoogieDeclarations]: Found specification of procedure rp_start [2021-12-28 04:03:53,525 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_start [2021-12-28 04:03:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopID [2021-12-28 04:03:53,526 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopID [2021-12-28 04:03:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-28 04:03:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-28 04:03:53,526 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-28 04:03:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-28 04:03:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-28 04:03:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-28 04:03:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-28 04:03:53,527 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-28 04:03:53,527 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-28 04:03:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure rp_hangup [2021-12-28 04:03:53,528 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_hangup [2021-12-28 04:03:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-28 04:03:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-28 04:03:53,528 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-28 04:03:53,528 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-28 04:03:53,528 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure sSetInterfaceMode [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure sSetInterfaceMode [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rp_write_room [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_write_room [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmset [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmset [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure init_r_port [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure init_r_port [2021-12-28 04:03:53,553 INFO L130 BoogieDeclarations]: Found specification of procedure rp_ioctl [2021-12-28 04:03:53,553 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_ioctl [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure sModemReset [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure sModemReset [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure rp_break [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_break [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure rp_put_char [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_put_char [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-28 04:03:53,554 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-28 04:03:53,554 INFO L130 BoogieDeclarations]: Found specification of procedure rp_unthrottle [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_unthrottle [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-28 04:03:53,555 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-28 04:03:53,555 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure sPCIModemReset [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sPCIModemReset [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure rp_flush_buffer [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_flush_buffer [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure rp_chars_in_buffer [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_chars_in_buffer [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure configure_r_port [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_r_port [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-28 04:03:53,556 INFO L130 BoogieDeclarations]: Found specification of procedure sOutW [2021-12-28 04:03:53,556 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutW [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure sDisInterrupts [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sDisInterrupts [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure rp_set_termios [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_set_termios [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure sOutB [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutB [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure rp_throttle [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_throttle [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmget [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmget [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopNumChan [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopNumChan [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-28 04:03:53,557 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-28 04:03:53,557 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-28 04:03:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-28 04:03:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-28 04:03:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-28 04:03:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-28 04:03:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-28 04:03:53,558 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-28 04:03:53,558 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-28 04:03:54,026 INFO L234 CfgBuilder]: Building ICFG [2021-12-28 04:03:54,028 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-28 04:03:54,596 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-28 04:04:59,584 INFO L275 CfgBuilder]: Performing block encoding [2021-12-28 04:04:59,604 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-28 04:04:59,604 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-28 04:04:59,607 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:04:59 BoogieIcfgContainer [2021-12-28 04:04:59,607 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-28 04:04:59,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-28 04:04:59,609 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-28 04:04:59,610 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-28 04:04:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.12 04:03:51" (1/3) ... [2021-12-28 04:04:59,611 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a51b7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:04:59, skipping insertion in model container [2021-12-28 04:04:59,611 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.12 04:03:52" (2/3) ... [2021-12-28 04:04:59,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a51b7df and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.12 04:04:59, skipping insertion in model container [2021-12-28 04:04:59,613 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.12 04:04:59" (3/3) ... [2021-12-28 04:04:59,614 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 [2021-12-28 04:04:59,618 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-28 04:04:59,619 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-28 04:04:59,655 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-28 04:04:59,660 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 [2021-12-28 04:04:59,660 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-28 04:04:59,702 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) [2021-12-28 04:04:59,710 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-28 04:04:59,710 INFO L506 BasicCegarLoop]: Found error trace [2021-12-28 04:04:59,711 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] [2021-12-28 04:04:59,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-28 04:04:59,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-28 04:04:59,715 INFO L85 PathProgramCache]: Analyzing trace with hash -1200074208, now seen corresponding path program 1 times [2021-12-28 04:04:59,720 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-28 04:04:59,721 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [363592817] [2021-12-28 04:04:59,721 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-28 04:04:59,722 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-28 04:05:00,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:00,505 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-28 04:05:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:00,513 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-28 04:05:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:00,525 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-28 04:05:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:00,534 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-28 04:05:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-28 04:05:00,541 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-28 04:05:00,542 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-28 04:05:00,542 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [363592817] [2021-12-28 04:05:00,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [363592817] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-28 04:05:00,546 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-28 04:05:00,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-28 04:05:00,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [505883571] [2021-12-28 04:05:00,548 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-28 04:05:00,551 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-28 04:05:00,551 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-28 04:05:00,569 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-28 04:05:00,569 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-28 04:05:00,574 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) [2021-12-28 04:05:02,630 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 [] [2021-12-28 04:05:05,424 WARN L534 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=false, quantifiers []