./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 204277589f1e9105606b7fb7cfd8af760c5fd585 ............................................................................................................................................................................................................................................................................................................ Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 204277589f1e9105606b7fb7cfd8af760c5fd585 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 15:53:55,334 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:53:55,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:53:55,342 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:53:55,342 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:53:55,343 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:53:55,344 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:53:55,345 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:53:55,346 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:53:55,347 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:53:55,347 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:53:55,347 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:53:55,348 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:53:55,349 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:53:55,349 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:53:55,349 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:53:55,350 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:53:55,351 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:53:55,352 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:53:55,353 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:53:55,354 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:53:55,355 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:53:55,356 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:53:55,356 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:53:55,356 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:53:55,356 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:53:55,357 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:53:55,357 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:53:55,358 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:53:55,359 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:53:55,359 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:53:55,359 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:53:55,360 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:53:55,360 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:53:55,360 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:53:55,361 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:53:55,361 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 15:53:55,368 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:53:55,368 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:53:55,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:53:55,368 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 15:53:55,369 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:53:55,369 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:53:55,369 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:53:55,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:53:55,370 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:53:55,371 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:53:55,371 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:53:55,372 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:53:55,372 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer 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(__VERIFIER_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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-11-18 15:53:55,400 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:53:55,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:53:55,412 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:53:55,413 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:53:55,414 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:53:55,414 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:53:55,458 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/256b5a795/94c593580e0840119f7292b89358cc60/FLAG282cf5aaa [2018-11-18 15:53:55,768 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:53:55,769 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:53:55,774 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/256b5a795/94c593580e0840119f7292b89358cc60/FLAG282cf5aaa [2018-11-18 15:53:55,786 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/256b5a795/94c593580e0840119f7292b89358cc60 [2018-11-18 15:53:55,789 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:53:55,790 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:53:55,791 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:53:55,791 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:53:55,794 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:53:55,795 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:55,797 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@544e5471 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55, skipping insertion in model container [2018-11-18 15:53:55,798 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:55,806 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:53:55,825 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:53:55,946 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:53:55,948 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:53:55,967 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:53:55,980 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:53:55,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55 WrapperNode [2018-11-18 15:53:55,980 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:53:55,981 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:53:55,981 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:53:55,981 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:53:55,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:55,990 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:55,996 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:55,997 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:56,003 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:56,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:56,009 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... [2018-11-18 15:53:56,047 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:53:56,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:53:56,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:53:56,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:53:56,048 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:53:56,085 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-18 15:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 15:53:56,086 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 15:53:56,086 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~int [2018-11-18 15:53:56,087 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~real [2018-11-18 15:53:56,280 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:53:56,280 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:53:56 BoogieIcfgContainer [2018-11-18 15:53:56,280 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:53:56,281 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:53:56,281 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:53:56,283 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:53:56,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:53:55" (1/3) ... [2018-11-18 15:53:56,284 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8456050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:53:56, skipping insertion in model container [2018-11-18 15:53:56,284 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:55" (2/3) ... [2018-11-18 15:53:56,285 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@8456050 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:53:56, skipping insertion in model container [2018-11-18 15:53:56,285 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:53:56" (3/3) ... [2018-11-18 15:53:56,286 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:53:56,292 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:53:56,296 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:53:56,309 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:53:56,334 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:53:56,335 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:53:56,335 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:53:56,335 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:53:56,335 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:53:56,335 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:53:56,335 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:53:56,336 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:53:56,336 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:53:56,349 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-11-18 15:53:56,352 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:53:56,352 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:53:56,353 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:53:56,354 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:53:56,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:53:56,358 INFO L82 PathProgramCache]: Analyzing trace with hash -1694243422, now seen corresponding path program 1 times [2018-11-18 15:53:56,359 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:53:56,359 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:53:56,394 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:53:56,395 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:53:56,395 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:53:56,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:53:56,447 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:53:56,449 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:53:56,449 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:53:56,452 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:53:56,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:53:56,462 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:53:56,464 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-11-18 15:53:56,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:53:56,481 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-11-18 15:53:56,481 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:53:56,482 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-18 15:53:56,482 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:53:56,488 INFO L225 Difference]: With dead ends: 94 [2018-11-18 15:53:56,488 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 15:53:56,491 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:53:56,501 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 15:53:56,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-18 15:53:56,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 15:53:56,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-18 15:53:56,515 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-11-18 15:53:56,515 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:53:56,515 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-18 15:53:56,515 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:53:56,516 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-11-18 15:53:56,516 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:53:56,516 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:53:56,517 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:53:56,517 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:53:56,517 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:53:56,517 INFO L82 PathProgramCache]: Analyzing trace with hash 644046298, now seen corresponding path program 1 times [2018-11-18 15:53:56,517 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 15:53:56,518 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 15:53:56,518 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:53:56,519 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:53:56,519 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:53:56,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:53:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 15:53:56,578 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 15:53:56,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:53:56 BoogieIcfgContainer [2018-11-18 15:53:56,594 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:53:56,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:53:56,594 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:53:56,595 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:53:56,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:53:56" (3/4) ... [2018-11-18 15:53:56,597 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 15:53:56,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:53:56,598 INFO L168 Benchmark]: Toolchain (without parser) took 808.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -121.8 MB). Peak memory consumption was 19.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:53:56,599 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:53:56,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 189.29 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:53:56,600 INFO L168 Benchmark]: Boogie Preprocessor took 66.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:53:56,600 INFO L168 Benchmark]: RCFGBuilder took 232.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:53:56,601 INFO L168 Benchmark]: TraceAbstraction took 313.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. [2018-11-18 15:53:56,601 INFO L168 Benchmark]: Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:53:56,603 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 189.29 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 944.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 66.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 17.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 232.47 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.6 MB). Peak memory consumption was 32.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 313.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.8 MB). Peak memory consumption was 32.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of shiftRight at line 37, overapproximation of bitwiseOr at line 38, overapproximation of bitwiseAnd at line 25, overapproximation of someBinaryDOUBLEComparisonOperation at line 102. Possible FailurePath: [L14] static const double huge_floor = 1.0e300; VAL [\old(huge_floor)=10737418243, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L98] double x = 0.0; VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] CALL, EXPR floor_double(x) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000] [L17] __int32_t i0, i1, j0; [L18] __uint32_t i, j; VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L20] FCALL ieee_double_shape_type ew_u; [L21] FCALL ew_u.value = (x) [L22] EXPR, FCALL ew_u.parts.msw [L22] (i0) = ew_u.parts.msw [L23] EXPR, FCALL ew_u.parts.lsw [L23] (i1) = ew_u.parts.lsw [L24] COND FALSE !(0) VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L25] j0 = ((i0 >> 20) & 0x7ff) - 0x3ff VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, x=0] [L26] COND TRUE j0 < 20 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L27] COND FALSE !(j0 < 0) [L37] i = (0x000fffff) >> j0 VAL [\old(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L38] COND TRUE ((i0 & i) | i1) == 0 [L39] RET return x; VAL [\old(x)=0, \result=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, i0=-2147483648, i1=-2147483648, j0=0, x=0] [L99] EXPR floor_double(x) VAL [floor_double(x)=0, huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, x=0] [L99] double res = floor_double(x); [L102] EXPR res == 0.0 && __signbit_double(res) == 0 VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, res == 0.0 && __signbit_double(res) == 0=0, x=0] [L102] COND TRUE !(res == 0.0 && __signbit_double(res) == 0) [L103] __VERIFIER_error() VAL [huge_floor=1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000, res=0, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 66 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 324 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-5842f4b [2018-11-18 15:53:58,022 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:53:58,023 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:53:58,032 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:53:58,032 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:53:58,033 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:53:58,034 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:53:58,035 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:53:58,036 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:53:58,037 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:53:58,037 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:53:58,038 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:53:58,038 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:53:58,039 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:53:58,040 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:53:58,040 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:53:58,042 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:53:58,043 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:53:58,044 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:53:58,045 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:53:58,046 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:53:58,047 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:53:58,049 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:53:58,049 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:53:58,049 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:53:58,050 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:53:58,050 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:53:58,051 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:53:58,051 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:53:58,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:53:58,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:53:58,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:53:58,053 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:53:58,054 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:53:58,054 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:53:58,055 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:53:58,055 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 15:53:58,065 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:53:58,066 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:53:58,066 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:53:58,066 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 15:53:58,067 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 15:53:58,067 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 15:53:58,067 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 15:53:58,067 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:53:58,068 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 15:53:58,069 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 15:53:58,069 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 15:53:58,069 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:53:58,071 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:53:58,071 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:53:58,071 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:53:58,071 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:53:58,071 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:53:58,072 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 15:53:58,072 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:53:58,073 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 15:53:58,073 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 15:53:58,073 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer 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(__VERIFIER_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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 204277589f1e9105606b7fb7cfd8af760c5fd585 [2018-11-18 15:53:58,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:53:58,108 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:53:58,111 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:53:58,112 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:53:58,112 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:53:58,113 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/../../sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:53:58,159 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/0e1e0bac6/300652e421fb4b628f6ca273572e6ba1/FLAGc67bb4849 [2018-11-18 15:53:58,492 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:53:58,492 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/sv-benchmarks/c/float-newlib/double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:53:58,496 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/0e1e0bac6/300652e421fb4b628f6ca273572e6ba1/FLAGc67bb4849 [2018-11-18 15:53:58,924 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/data/0e1e0bac6/300652e421fb4b628f6ca273572e6ba1 [2018-11-18 15:53:58,927 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:53:58,928 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 15:53:58,928 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:53:58,928 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:53:58,931 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:53:58,932 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:53:58" (1/1) ... [2018-11-18 15:53:58,934 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@401a7ae0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:58, skipping insertion in model container [2018-11-18 15:53:58,934 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:53:58" (1/1) ... [2018-11-18 15:53:58,939 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:53:58,955 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:53:59,093 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:53:59,096 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:53:59,118 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:53:59,136 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:53:59,136 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59 WrapperNode [2018-11-18 15:53:59,137 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:53:59,137 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:53:59,137 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:53:59,137 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:53:59,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,153 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,154 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,162 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,167 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,168 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... [2018-11-18 15:53:59,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:53:59,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:53:59,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:53:59,171 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:53:59,171 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:53:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:53:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:53:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure floor_double [2018-11-18 15:53:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_double [2018-11-18 15:53:59,262 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:53:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 15:53:59,262 INFO L130 BoogieDeclarations]: Found specification of procedure floor_double [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_double [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:53:59,263 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:53:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intFLOATTYPE8 [2018-11-18 15:53:59,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2018-11-18 15:53:59,366 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:54:00,107 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 15:54:00,356 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:54:00,356 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:54:00 BoogieIcfgContainer [2018-11-18 15:54:00,356 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:54:00,357 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:54:00,357 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:54:00,359 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:54:00,359 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:53:58" (1/3) ... [2018-11-18 15:54:00,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07b7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:54:00, skipping insertion in model container [2018-11-18 15:54:00,360 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:53:59" (2/3) ... [2018-11-18 15:54:00,360 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d07b7be and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:54:00, skipping insertion in model container [2018-11-18 15:54:00,361 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:54:00" (3/3) ... [2018-11-18 15:54:00,362 INFO L112 eAbstractionObserver]: Analyzing ICFG double_req_bl_1052d_true-unreach-call.c [2018-11-18 15:54:00,368 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:54:00,373 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 15:54:00,383 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 15:54:00,402 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 15:54:00,403 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:54:00,403 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:54:00,403 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:54:00,403 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:54:00,403 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:54:00,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:54:00,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:54:00,404 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:54:00,414 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states. [2018-11-18 15:54:00,417 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-18 15:54:00,417 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:00,418 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:00,419 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:00,422 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:00,423 INFO L82 PathProgramCache]: Analyzing trace with hash -1694243422, now seen corresponding path program 1 times [2018-11-18 15:54:00,425 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:00,425 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:00,430 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:00,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:00,471 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:00,483 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:00,483 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:00,491 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:00,491 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:54:00,493 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 15:54:00,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 15:54:00,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:54:00,507 INFO L87 Difference]: Start difference. First operand 51 states. Second operand 2 states. [2018-11-18 15:54:00,526 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:00,527 INFO L93 Difference]: Finished difference Result 94 states and 139 transitions. [2018-11-18 15:54:00,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 15:54:00,528 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 19 [2018-11-18 15:54:00,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:00,534 INFO L225 Difference]: With dead ends: 94 [2018-11-18 15:54:00,534 INFO L226 Difference]: Without dead ends: 47 [2018-11-18 15:54:00,536 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 15:54:00,547 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-11-18 15:54:00,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 47. [2018-11-18 15:54:00,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2018-11-18 15:54:00,559 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2018-11-18 15:54:00,560 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 19 [2018-11-18 15:54:00,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:00,560 INFO L480 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2018-11-18 15:54:00,560 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 15:54:00,560 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2018-11-18 15:54:00,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 15:54:00,561 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:00,561 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:00,561 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:00,561 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:00,561 INFO L82 PathProgramCache]: Analyzing trace with hash 644046298, now seen corresponding path program 1 times [2018-11-18 15:54:00,562 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:00,562 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:00,572 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:00,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:00,614 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:00,735 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:00,735 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:00,746 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:00,747 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:54:00,748 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:54:00,748 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:54:00,748 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:54:00,749 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 7 states. [2018-11-18 15:54:03,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:03,324 INFO L93 Difference]: Finished difference Result 80 states and 95 transitions. [2018-11-18 15:54:03,325 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-18 15:54:03,325 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 20 [2018-11-18 15:54:03,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:03,328 INFO L225 Difference]: With dead ends: 80 [2018-11-18 15:54:03,328 INFO L226 Difference]: Without dead ends: 39 [2018-11-18 15:54:03,329 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2018-11-18 15:54:03,329 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-18 15:54:03,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 34. [2018-11-18 15:54:03,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 15:54:03,334 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 37 transitions. [2018-11-18 15:54:03,334 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 37 transitions. Word has length 20 [2018-11-18 15:54:03,334 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:03,335 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 37 transitions. [2018-11-18 15:54:03,335 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:54:03,335 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 37 transitions. [2018-11-18 15:54:03,335 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-18 15:54:03,336 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:03,336 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:03,336 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:03,336 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:03,336 INFO L82 PathProgramCache]: Analyzing trace with hash 396441794, now seen corresponding path program 1 times [2018-11-18 15:54:03,337 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:03,337 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:03,340 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:03,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:03,433 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:05,255 WARN L180 SmtUtils]: Spent 709.00 ms on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 15:54:05,259 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:05,259 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:05,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:05,268 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:54:05,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:54:05,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:54:05,268 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:54:05,269 INFO L87 Difference]: Start difference. First operand 34 states and 37 transitions. Second operand 6 states. [2018-11-18 15:54:07,505 WARN L180 SmtUtils]: Spent 1.01 s on a formula simplification that was a NOOP. DAG size: 13 [2018-11-18 15:54:08,689 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:08,689 INFO L93 Difference]: Finished difference Result 52 states and 55 transitions. [2018-11-18 15:54:08,696 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:54:08,696 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 23 [2018-11-18 15:54:08,696 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:08,697 INFO L225 Difference]: With dead ends: 52 [2018-11-18 15:54:08,697 INFO L226 Difference]: Without dead ends: 34 [2018-11-18 15:54:08,697 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:54:08,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2018-11-18 15:54:08,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2018-11-18 15:54:08,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2018-11-18 15:54:08,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 36 transitions. [2018-11-18 15:54:08,702 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 36 transitions. Word has length 23 [2018-11-18 15:54:08,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:08,702 INFO L480 AbstractCegarLoop]: Abstraction has 34 states and 36 transitions. [2018-11-18 15:54:08,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:54:08,702 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 36 transitions. [2018-11-18 15:54:08,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 15:54:08,703 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:08,703 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:08,703 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:08,703 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:08,704 INFO L82 PathProgramCache]: Analyzing trace with hash -1441427095, now seen corresponding path program 1 times [2018-11-18 15:54:08,704 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:08,704 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:08,707 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:08,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:08,799 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:08,822 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-11-18 15:54:08,825 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2018-11-18 15:54:08,833 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-11-18 15:54:08,833 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 15:54:08,835 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:08,837 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:08,839 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:08,839 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-18 15:54:08,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:08,876 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:08,884 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:08,885 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 15:54:08,885 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 15:54:08,885 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 15:54:08,885 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 15:54:08,885 INFO L87 Difference]: Start difference. First operand 34 states and 36 transitions. Second operand 7 states. [2018-11-18 15:54:09,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:09,063 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-11-18 15:54:09,063 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 15:54:09,064 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 15:54:09,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:09,064 INFO L225 Difference]: With dead ends: 44 [2018-11-18 15:54:09,064 INFO L226 Difference]: Without dead ends: 41 [2018-11-18 15:54:09,065 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2018-11-18 15:54:09,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2018-11-18 15:54:09,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2018-11-18 15:54:09,068 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2018-11-18 15:54:09,068 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 43 transitions. [2018-11-18 15:54:09,069 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 43 transitions. Word has length 24 [2018-11-18 15:54:09,069 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:09,069 INFO L480 AbstractCegarLoop]: Abstraction has 41 states and 43 transitions. [2018-11-18 15:54:09,069 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 15:54:09,069 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 43 transitions. [2018-11-18 15:54:09,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2018-11-18 15:54:09,069 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:09,070 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:09,070 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:09,070 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:09,070 INFO L82 PathProgramCache]: Analyzing trace with hash -452854644, now seen corresponding path program 1 times [2018-11-18 15:54:09,070 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:09,070 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:09,073 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:09,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:09,164 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:09,239 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:09,240 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:09,248 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:09,248 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-18 15:54:09,248 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-18 15:54:09,248 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-18 15:54:09,249 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-18 15:54:09,249 INFO L87 Difference]: Start difference. First operand 41 states and 43 transitions. Second operand 6 states. [2018-11-18 15:54:10,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:10,337 INFO L93 Difference]: Finished difference Result 57 states and 58 transitions. [2018-11-18 15:54:10,338 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 15:54:10,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2018-11-18 15:54:10,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:10,339 INFO L225 Difference]: With dead ends: 57 [2018-11-18 15:54:10,339 INFO L226 Difference]: Without dead ends: 33 [2018-11-18 15:54:10,339 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 15:54:10,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2018-11-18 15:54:10,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2018-11-18 15:54:10,342 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-18 15:54:10,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 32 transitions. [2018-11-18 15:54:10,343 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 32 transitions. Word has length 25 [2018-11-18 15:54:10,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:10,343 INFO L480 AbstractCegarLoop]: Abstraction has 33 states and 32 transitions. [2018-11-18 15:54:10,343 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-18 15:54:10,343 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 32 transitions. [2018-11-18 15:54:10,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-18 15:54:10,344 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:54:10,344 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:54:10,344 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 15:54:10,344 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:54:10,344 INFO L82 PathProgramCache]: Analyzing trace with hash 1667977904, now seen corresponding path program 1 times [2018-11-18 15:54:10,345 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 15:54:10,345 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-11-18 15:54:10,350 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:54:10,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:54:10,504 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:54:10,514 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 45 treesize of output 39 [2018-11-18 15:54:10,516 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 39 treesize of output 36 [2018-11-18 15:54:10,524 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 15 [2018-11-18 15:54:10,524 INFO L267 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,527 INFO L267 ElimStorePlain]: Start of recursive call 3: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,529 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,531 INFO L267 ElimStorePlain]: Start of recursive call 1: 1 dim-0 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,532 INFO L202 ElimStorePlain]: Needed 4 recursive calls to eliminate 2 variables, input treesize:45, output treesize:15 [2018-11-18 15:54:10,589 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:54:10,590 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:54:10,591 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 2 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 3 new quantified variables, introduced 0 case distinctions, treesize of input 33 treesize of output 43 [2018-11-18 15:54:10,626 INFO L682 Elim1Store]: detected equality via solver [2018-11-18 15:54:10,629 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 2 stores, 1 select indices, 1 select index equivalence classes, 1 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 24 [2018-11-18 15:54:10,630 INFO L267 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,644 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 24 treesize of output 18 [2018-11-18 15:54:10,650 INFO L477 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 1 disjoint index pairs (out of 1 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 4 [2018-11-18 15:54:10,651 INFO L267 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,654 INFO L267 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,656 INFO L267 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, 1 dim-2 vars, End of recursive call: and 1 xjuncts. [2018-11-18 15:54:10,662 INFO L267 ElimStorePlain]: Start of recursive call 1: 2 dim-0 vars, 1 dim-2 vars, End of recursive call: 1 dim-0 vars, and 1 xjuncts. [2018-11-18 15:54:10,662 INFO L202 ElimStorePlain]: Needed 5 recursive calls to eliminate 3 variables, input treesize:42, output treesize:14 [2018-11-18 15:54:10,780 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:54:10,780 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 15:54:10,789 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:54:10,789 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-11-18 15:54:10,789 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-11-18 15:54:10,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-11-18 15:54:10,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-11-18 15:54:10,790 INFO L87 Difference]: Start difference. First operand 33 states and 32 transitions. Second operand 12 states. [2018-11-18 15:54:11,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:54:11,206 INFO L93 Difference]: Finished difference Result 33 states and 32 transitions. [2018-11-18 15:54:11,207 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2018-11-18 15:54:11,207 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 32 [2018-11-18 15:54:11,207 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:54:11,207 INFO L225 Difference]: With dead ends: 33 [2018-11-18 15:54:11,207 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:54:11,208 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2018-11-18 15:54:11,208 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:54:11,208 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:54:11,208 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:54:11,208 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:54:11,208 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 32 [2018-11-18 15:54:11,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:54:11,209 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:54:11,209 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-11-18 15:54:11,209 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:54:11,209 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:54:11,212 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L31(lines 31 34) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L27(lines 27 46) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L56(lines 56 68) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 24) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L421 ceAbstractionStarter]: At program point L19-3(lines 19 24) the Hoare annotation is: (or (= floor_double_~x |floor_double_#in~x|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L48(lines 48 51) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point L19-4(lines 19 24) no Hoare annotation was computed. [2018-11-18 15:54:11,403 INFO L425 ceAbstractionStarter]: For program point floor_doubleFINAL(lines 16 77) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L40(lines 40 45) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L28(lines 28 35) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L57(lines 57 66) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L57-1(lines 57 66) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point floor_doubleEXIT(lines 16 77) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L428 ceAbstractionStarter]: At program point floor_doubleENTRY(lines 16 77) the Hoare annotation is: true [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L41(lines 41 42) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L41-2(lines 41 42) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L70(lines 70 75) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L70-2(lines 16 77) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L70-3(lines 70 75) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L62(lines 62 63) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 34) no Hoare annotation was computed. [2018-11-18 15:54:11,404 INFO L425 ceAbstractionStarter]: For program point L62-2(lines 62 63) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L58(lines 58 65) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L54(lines 54 55) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 39) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L26(lines 26 69) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L47(lines 47 69) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleFINAL(lines 79 89) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point __signbit_doubleEXIT(lines 79 89) no Hoare annotation was computed. [2018-11-18 15:54:11,405 INFO L425 ceAbstractionStarter]: For program point L82-1(lines 82 86) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L421 ceAbstractionStarter]: At program point L82-3(lines 82 86) the Hoare annotation is: (or (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0)) (= |__signbit_double_#in~x| __signbit_double_~x)) [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point L82-4(lines 82 86) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L428 ceAbstractionStarter]: At program point __signbit_doubleENTRY(lines 79 89) the Hoare annotation is: true [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0) [2018-11-18 15:54:11,406 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 91 108) the Hoare annotation is: true [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 91 108) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 91 108) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-11-18 15:54:11,406 INFO L425 ceAbstractionStarter]: For program point L102(line 102) no Hoare annotation was computed. [2018-11-18 15:54:11,407 INFO L421 ceAbstractionStarter]: At program point L102-1(line 102) the Hoare annotation is: (or (and (= (let ((.cse0 (concat (_ bv0 32) (_ bv0 32)))) (fp ((_ extract 63 63) .cse0) ((_ extract 62 52) .cse0) ((_ extract 51 0) .cse0))) main_~res~0) (= (_ +zero 11 53) main_~x~0) |main_#t~short10|) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-18 15:54:11,407 INFO L425 ceAbstractionStarter]: For program point L102-2(line 102) no Hoare annotation was computed. [2018-11-18 15:54:11,407 INFO L421 ceAbstractionStarter]: At program point L99(line 99) the Hoare annotation is: (or (= (_ +zero 11 53) main_~x~0) (not (= ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000.0) ~huge_floor~0))) [2018-11-18 15:54:11,407 INFO L425 ceAbstractionStarter]: For program point L99-1(line 99) no Hoare annotation was computed. [2018-11-18 15:54:11,407 INFO L425 ceAbstractionStarter]: For program point L102-4(lines 102 105) no Hoare annotation was computed. [2018-11-18 15:54:11,412 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,415 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,415 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,416 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,417 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:54:11 BoogieIcfgContainer [2018-11-18 15:54:11,417 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:54:11,418 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:54:11,418 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:54:11,418 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:54:11,418 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:54:00" (3/4) ... [2018-11-18 15:54:11,421 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:54:11,425 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure floor_double [2018-11-18 15:54:11,425 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:54:11,426 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_double [2018-11-18 15:54:11,426 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:54:11,430 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-11-18 15:54:11,430 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 15:54:11,430 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:54:11,447 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) [2018-11-18 15:54:11,447 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x [2018-11-18 15:54:11,467 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_8ada5839-3d72-4180-86ed-8cb58203d28f/bin-2019/uautomizer/witness.graphml [2018-11-18 15:54:11,468 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:54:11,468 INFO L168 Benchmark]: Toolchain (without parser) took 12541.40 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 949.7 MB in the beginning and 840.5 MB in the end (delta: 109.3 MB). Peak memory consumption was 259.2 MB. Max. memory is 11.5 GB. [2018-11-18 15:54:11,469 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:54:11,469 INFO L168 Benchmark]: CACSL2BoogieTranslator took 208.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:54:11,470 INFO L168 Benchmark]: Boogie Preprocessor took 33.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:54:11,470 INFO L168 Benchmark]: RCFGBuilder took 1185.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:54:11,470 INFO L168 Benchmark]: TraceAbstraction took 11060.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 847.1 MB in the end (delta: 260.1 MB). Peak memory consumption was 260.1 MB. Max. memory is 11.5 GB. [2018-11-18 15:54:11,470 INFO L168 Benchmark]: Witness Printer took 50.26 ms. Allocated memory is still 1.2 GB. Free memory was 847.1 MB in the beginning and 840.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-11-18 15:54:11,472 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 208.78 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 933.6 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 33.18 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1185.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -173.5 MB). Peak memory consumption was 15.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11060.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 847.1 MB in the end (delta: 260.1 MB). Peak memory consumption was 260.1 MB. Max. memory is 11.5 GB. * Witness Printer took 50.26 ms. Allocated memory is still 1.2 GB. Free memory was 847.1 MB in the beginning and 840.5 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 82]: Loop Invariant [2018-11-18 15:54:11,475 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,475 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) || \old(x) == x - InvariantResult [Line: 19]: Loop Invariant [2018-11-18 15:54:11,476 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-11-18 15:54:11,476 WARN L387 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: x == \old(x) || !(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E300) == huge_floor) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 51 locations, 1 error locations. SAFE Result, 11.0s OverallTime, 6 OverallIterations, 1 TraceHistogramMax, 7.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 209 SDslu, 625 SDs, 0 SdLazy, 283 SolverSat, 28 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 158 GetRequests, 108 SyntacticMatches, 1 SemanticMatches, 49 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 4.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=51occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 5 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 10 LocationsWithAnnotation, 18 PreInvPairs, 21 NumberOfFragments, 67 HoareAnnotationTreeSize, 18 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 10 FomulaSimplificationsInter, 56 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.4s InterpolantComputationTime, 143 NumberOfCodeBlocks, 143 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 137 ConstructedInterpolants, 23 QuantifiedInterpolants, 21818 SizeOfPredicates, 21 NumberOfNonLiveVariables, 404 ConjunctsInSsa, 42 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...