./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 e19ca921 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-e19ca92 [2021-12-22 14:45:38,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-22 14:45:38,251 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-22 14:45:38,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-22 14:45:38,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-22 14:45:38,301 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-22 14:45:38,302 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-22 14:45:38,306 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-22 14:45:38,307 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-22 14:45:38,311 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-22 14:45:38,312 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-22 14:45:38,312 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-22 14:45:38,313 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-22 14:45:38,314 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-22 14:45:38,315 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-22 14:45:38,316 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-22 14:45:38,317 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-22 14:45:38,317 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-22 14:45:38,320 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-22 14:45:38,322 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-22 14:45:38,323 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-22 14:45:38,324 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-22 14:45:38,325 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-22 14:45:38,325 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-22 14:45:38,331 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-22 14:45:38,331 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-22 14:45:38,331 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-22 14:45:38,332 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-22 14:45:38,332 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-22 14:45:38,333 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-22 14:45:38,333 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-22 14:45:38,334 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-22 14:45:38,335 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-22 14:45:38,335 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-22 14:45:38,336 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-22 14:45:38,336 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-22 14:45:38,337 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-22 14:45:38,337 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-22 14:45:38,337 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-22 14:45:38,338 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-22 14:45:38,338 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-22 14:45:38,339 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2021-12-22 14:45:38,362 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-22 14:45:38,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-22 14:45:38,362 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-22 14:45:38,362 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-22 14:45:38,363 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2021-12-22 14:45:38,363 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2021-12-22 14:45:38,364 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-22 14:45:38,364 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-22 14:45:38,364 INFO L138 SettingsManager]: * Use SBE=true [2021-12-22 14:45:38,364 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-22 14:45:38,365 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-12-22 14:45:38,366 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-22 14:45:38,366 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-22 14:45:38,366 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-12-22 14:45:38,366 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:45:38,366 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-22 14:45:38,366 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-12-22 14:45:38,366 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-12-22 14:45:38,367 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-22 14:45:38,367 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-12-22 14:45:38,368 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-12-22 14:45:38,368 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2021-12-22 14:45:38,368 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-12-22 14:45:38,368 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-22 14:45:38,368 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 87eb0267bb9ac47d2f064b0fef07b59fa75f143be168864f89135d42f548ac8a [2021-12-22 14:45:38,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-22 14:45:38,574 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-22 14:45:38,576 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-22 14:45:38,577 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-22 14:45:38,577 INFO L275 PluginConnector]: CDTParser initialized [2021-12-22 14:45:38,578 INFO L432 ainManager$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 [2021-12-22 14:45:38,623 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded752ab0/8b00e25665034aeca26b80fd28991db3/FLAGbf9cdb57f [2021-12-22 14:45:39,132 INFO L306 CDTParser]: Found 1 translation units. [2021-12-22 14:45:39,133 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 [2021-12-22 14:45:39,165 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded752ab0/8b00e25665034aeca26b80fd28991db3/FLAGbf9cdb57f [2021-12-22 14:45:39,348 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ded752ab0/8b00e25665034aeca26b80fd28991db3 [2021-12-22 14:45:39,350 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-22 14:45:39,351 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-22 14:45:39,351 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-22 14:45:39,351 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-22 14:45:39,356 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-22 14:45:39,357 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:45:39" (1/1) ... [2021-12-22 14:45:39,358 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1845750d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:39, skipping insertion in model container [2021-12-22 14:45:39,358 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.12 02:45:39" (1/1) ... [2021-12-22 14:45:39,363 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-22 14:45:39,436 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-22 14:45:39,768 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-22 14:45:39,768 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] [2021-12-22 14:45:40,122 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] [2021-12-22 14:45:40,689 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:45:40,735 INFO L203 MainTranslator]: Completed pre-run [2021-12-22 14:45:40,785 WARN L1240 CHandler]: Detected problem Invalid redeclaration of the name show at C: (*show)(struct kobject___0 * , struct attribute___0 * , char * ) [3825] [2021-12-22 14:45:40,787 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] [2021-12-22 14:45:40,799 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] [2021-12-22 14:45:40,985 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-22 14:45:41,074 INFO L208 MainTranslator]: Completed translation [2021-12-22 14:45:41,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41 WrapperNode [2021-12-22 14:45:41,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-22 14:45:41,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-22 14:45:41,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-22 14:45:41,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-22 14:45:41,082 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,149 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,253 INFO L137 Inliner]: procedures = 228, calls = 2575, calls flagged for inlining = 108, calls inlined = 106, statements flattened = 5652 [2021-12-22 14:45:41,254 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-22 14:45:41,255 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-22 14:45:41,255 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-22 14:45:41,255 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-22 14:45:41,261 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,261 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,297 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,311 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,437 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,456 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,474 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,497 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-22 14:45:41,498 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-22 14:45:41,498 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-22 14:45:41,498 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-22 14:45:41,499 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (1/1) ... [2021-12-22 14:45:41,505 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-12-22 14:45:41,511 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-22 14:45:41,532 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) [2021-12-22 14:45:41,550 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 [2021-12-22 14:45:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_strcpy [2021-12-22 14:45:41,564 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_strcpy [2021-12-22 14:45:41,564 INFO L130 BoogieDeclarations]: Found specification of procedure msleep [2021-12-22 14:45:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep [2021-12-22 14:45:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-12-22 14:45:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-12-22 14:45:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_stop [2021-12-22 14:45:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_stop [2021-12-22 14:45:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure get_current [2021-12-22 14:45:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure get_current [2021-12-22 14:45:41,565 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_lock [2021-12-22 14:45:41,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_lock [2021-12-22 14:45:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushRxFIFO [2021-12-22 14:45:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushRxFIFO [2021-12-22 14:45:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-12-22 14:45:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-12-22 14:45:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_disconnect_2 [2021-12-22 14:45:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_disconnect_2 [2021-12-22 14:45:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure char_buf_ptr [2021-12-22 14:45:41,566 INFO L138 BoogieDeclarations]: Found implementation of procedure char_buf_ptr [2021-12-22 14:45:41,566 INFO L130 BoogieDeclarations]: Found specification of procedure rocket_paranoia_check [2021-12-22 14:45:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rocket_paranoia_check [2021-12-22 14:45:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure slow_down_io [2021-12-22 14:45:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure slow_down_io [2021-12-22 14:45:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_unlock [2021-12-22 14:45:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_unlock [2021-12-22 14:45:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_error [2021-12-22 14:45:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_error [2021-12-22 14:45:41,567 INFO L130 BoogieDeclarations]: Found specification of procedure rp_wait_until_sent [2021-12-22 14:45:41,567 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_wait_until_sent [2021-12-22 14:45:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure sFlushTxFIFO [2021-12-22 14:45:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure sFlushTxFIFO [2021-12-22 14:45:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure clear_bit [2021-12-22 14:45:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure clear_bit [2021-12-22 14:45:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure outsw [2021-12-22 14:45:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure outsw [2021-12-22 14:45:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-12-22 14:45:41,568 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-12-22 14:45:41,568 INFO L130 BoogieDeclarations]: Found specification of procedure sInW [2021-12-22 14:45:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure sInW [2021-12-22 14:45:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2021-12-22 14:45:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2021-12-22 14:45:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure GetLineNumber [2021-12-22 14:45:41,569 INFO L138 BoogieDeclarations]: Found implementation of procedure GetLineNumber [2021-12-22 14:45:41,569 INFO L130 BoogieDeclarations]: Found specification of procedure msleep_interruptible [2021-12-22 14:45:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure msleep_interruptible [2021-12-22 14:45:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure rp_send_xchar [2021-12-22 14:45:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_send_xchar [2021-12-22 14:45:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure out32 [2021-12-22 14:45:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure out32 [2021-12-22 14:45:41,570 INFO L130 BoogieDeclarations]: Found specification of procedure sInB [2021-12-22 14:45:41,570 INFO L138 BoogieDeclarations]: Found implementation of procedure sInB [2021-12-22 14:45:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure tty_termios_baud_rate [2021-12-22 14:45:41,571 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_termios_baud_rate [2021-12-22 14:45:41,571 INFO L130 BoogieDeclarations]: Found specification of procedure rp_start [2021-12-22 14:45:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_start [2021-12-22 14:45:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopID [2021-12-22 14:45:41,572 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopID [2021-12-22 14:45:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-12-22 14:45:41,572 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-12-22 14:45:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_spin_unlock [2021-12-22 14:45:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_spin_unlock [2021-12-22 14:45:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure spin_unlock_irqrestore [2021-12-22 14:45:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure spin_unlock_irqrestore [2021-12-22 14:45:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-12-22 14:45:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure dtr_rts [2021-12-22 14:45:41,573 INFO L138 BoogieDeclarations]: Found implementation of procedure dtr_rts [2021-12-22 14:45:41,573 INFO L130 BoogieDeclarations]: Found specification of procedure rp_hangup [2021-12-22 14:45:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_hangup [2021-12-22 14:45:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-12-22 14:45:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure might_fault [2021-12-22 14:45:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure might_fault [2021-12-22 14:45:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure capable [2021-12-22 14:45:41,574 INFO L138 BoogieDeclarations]: Found implementation of procedure capable [2021-12-22 14:45:41,574 INFO L130 BoogieDeclarations]: Found specification of procedure sSetInterfaceMode [2021-12-22 14:45:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure sSetInterfaceMode [2021-12-22 14:45:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure put_tty_driver [2021-12-22 14:45:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure put_tty_driver [2021-12-22 14:45:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure rp_write_room [2021-12-22 14:45:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_write_room [2021-12-22 14:45:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmset [2021-12-22 14:45:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmset [2021-12-22 14:45:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure mutex_lock_nested [2021-12-22 14:45:41,575 INFO L138 BoogieDeclarations]: Found implementation of procedure mutex_lock_nested [2021-12-22 14:45:41,575 INFO L130 BoogieDeclarations]: Found specification of procedure init_r_port [2021-12-22 14:45:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure init_r_port [2021-12-22 14:45:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure rp_ioctl [2021-12-22 14:45:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_ioctl [2021-12-22 14:45:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure sModemReset [2021-12-22 14:45:41,576 INFO L138 BoogieDeclarations]: Found implementation of procedure sModemReset [2021-12-22 14:45:41,576 INFO L130 BoogieDeclarations]: Found specification of procedure free_pages [2021-12-22 14:45:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure free_pages [2021-12-22 14:45:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~int [2021-12-22 14:45:41,577 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-12-22 14:45:41,577 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-12-22 14:45:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_from_user [2021-12-22 14:45:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_from_user [2021-12-22 14:45:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure rp_break [2021-12-22 14:45:41,578 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_break [2021-12-22 14:45:41,578 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2021-12-22 14:45:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure jiffies_to_msecs [2021-12-22 14:45:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure jiffies_to_msecs [2021-12-22 14:45:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure rp_put_char [2021-12-22 14:45:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_put_char [2021-12-22 14:45:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-12-22 14:45:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_destroy [2021-12-22 14:45:41,579 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_destroy [2021-12-22 14:45:41,579 INFO L130 BoogieDeclarations]: Found specification of procedure rp_unthrottle [2021-12-22 14:45:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_unthrottle [2021-12-22 14:45:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure constant_test_bit [2021-12-22 14:45:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure constant_test_bit [2021-12-22 14:45:41,580 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_check_alloc_flags [2021-12-22 14:45:41,580 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_check_alloc_flags [2021-12-22 14:45:41,581 INFO L130 BoogieDeclarations]: Found specification of procedure __release_region [2021-12-22 14:45:41,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __release_region [2021-12-22 14:45:41,582 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-12-22 14:45:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure kfree [2021-12-22 14:45:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-12-22 14:45:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure copy_to_user [2021-12-22 14:45:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_to_user [2021-12-22 14:45:41,583 INFO L130 BoogieDeclarations]: Found specification of procedure carrier_raised [2021-12-22 14:45:41,583 INFO L138 BoogieDeclarations]: Found implementation of procedure carrier_raised [2021-12-22 14:45:41,584 INFO L130 BoogieDeclarations]: Found specification of procedure ldv__builtin_expect [2021-12-22 14:45:41,587 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv__builtin_expect [2021-12-22 14:45:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-12-22 14:45:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure copy_from_user [2021-12-22 14:45:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure copy_from_user [2021-12-22 14:45:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-22 14:45:41,591 INFO L130 BoogieDeclarations]: Found specification of procedure sPCIModemReset [2021-12-22 14:45:41,591 INFO L138 BoogieDeclarations]: Found implementation of procedure sPCIModemReset [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure tty_wakeup [2021-12-22 14:45:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_wakeup [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure rp_flush_buffer [2021-12-22 14:45:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_flush_buffer [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure rp_chars_in_buffer [2021-12-22 14:45:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_chars_in_buffer [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure __bad_percpu_size [2021-12-22 14:45:41,592 INFO L130 BoogieDeclarations]: Found specification of procedure configure_r_port [2021-12-22 14:45:41,592 INFO L138 BoogieDeclarations]: Found implementation of procedure configure_r_port [2021-12-22 14:45:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure _copy_to_user [2021-12-22 14:45:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure _copy_to_user [2021-12-22 14:45:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure atomic_dec [2021-12-22 14:45:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure atomic_dec [2021-12-22 14:45:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure __wake_up [2021-12-22 14:45:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure __wake_up [2021-12-22 14:45:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure sOutW [2021-12-22 14:45:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutW [2021-12-22 14:45:41,593 INFO L130 BoogieDeclarations]: Found specification of procedure mod_timer [2021-12-22 14:45:41,593 INFO L138 BoogieDeclarations]: Found implementation of procedure mod_timer [2021-12-22 14:45:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure sDisInterrupts [2021-12-22 14:45:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure sDisInterrupts [2021-12-22 14:45:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure rp_set_termios [2021-12-22 14:45:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_set_termios [2021-12-22 14:45:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure sOutB [2021-12-22 14:45:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure sOutB [2021-12-22 14:45:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure rp_throttle [2021-12-22 14:45:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_throttle [2021-12-22 14:45:41,594 INFO L130 BoogieDeclarations]: Found specification of procedure rp_tiocmget [2021-12-22 14:45:41,594 INFO L138 BoogieDeclarations]: Found implementation of procedure rp_tiocmget [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure tty_port_tty_set [2021-12-22 14:45:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_port_tty_set [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure sReadAiopNumChan [2021-12-22 14:45:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure sReadAiopNumChan [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure set_bit [2021-12-22 14:45:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure set_bit [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure __request_region [2021-12-22 14:45:41,595 INFO L138 BoogieDeclarations]: Found implementation of procedure __request_region [2021-12-22 14:45:41,595 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-22 14:45:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-22 14:45:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure tty_unregister_driver [2021-12-22 14:45:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure tty_unregister_driver [2021-12-22 14:45:41,596 INFO L130 BoogieDeclarations]: Found specification of procedure IS_ERR [2021-12-22 14:45:41,596 INFO L138 BoogieDeclarations]: Found implementation of procedure IS_ERR [2021-12-22 14:45:42,064 INFO L234 CfgBuilder]: Building ICFG [2021-12-22 14:45:42,067 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-22 14:45:42,436 INFO L766 $ProcedureCfgBuilder]: dead code at ProgramPoint ldv_stopFINAL: assume true; [2021-12-22 14:46:51,398 INFO L275 CfgBuilder]: Performing block encoding [2021-12-22 14:46:51,413 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-22 14:46:51,413 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-22 14:46:51,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:46:51 BoogieIcfgContainer [2021-12-22 14:46:51,417 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-22 14:46:51,418 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-12-22 14:46:51,418 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-12-22 14:46:51,424 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-12-22 14:46:51,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.12 02:45:39" (1/3) ... [2021-12-22 14:46:51,424 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2427da96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:46:51, skipping insertion in model container [2021-12-22 14:46:51,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.12 02:45:41" (2/3) ... [2021-12-22 14:46:51,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2427da96 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.12 02:46:51, skipping insertion in model container [2021-12-22 14:46:51,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.12 02:46:51" (3/3) ... [2021-12-22 14:46:51,426 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 [2021-12-22 14:46:51,429 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-12-22 14:46:51,430 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-12-22 14:46:51,468 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-12-22 14:46:51,481 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 [2021-12-22 14:46:51,481 INFO L340 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-12-22 14:46:51,526 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) [2021-12-22 14:46:51,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2021-12-22 14:46:51,536 INFO L506 BasicCegarLoop]: Found error trace [2021-12-22 14:46:51,537 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] [2021-12-22 14:46:51,537 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ldv_errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2021-12-22 14:46:51,541 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-22 14:46:51,541 INFO L85 PathProgramCache]: Analyzing trace with hash -1200074208, now seen corresponding path program 1 times [2021-12-22 14:46:51,547 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-22 14:46:51,547 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1990284541] [2021-12-22 14:46:51,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-22 14:46:51,548 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-22 14:46:51,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:52,231 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2021-12-22 14:46:52,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:52,242 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2021-12-22 14:46:52,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:52,252 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2021-12-22 14:46:52,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:52,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2021-12-22 14:46:52,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-22 14:46:52,267 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 24 trivial. 0 not checked. [2021-12-22 14:46:52,268 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-22 14:46:52,268 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1990284541] [2021-12-22 14:46:52,271 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1990284541] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-22 14:46:52,272 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-22 14:46:52,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-22 14:46:52,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [924572735] [2021-12-22 14:46:52,273 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-22 14:46:52,277 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-12-22 14:46:52,277 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-22 14:46:52,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-12-22 14:46:52,298 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-12-22 14:46:52,302 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) [2021-12-22 14:46:54,364 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 []