./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i --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_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/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 c82214860fee184bc373305d606fd208dd65fd42 ..................................................................................................................................................................................................................................... 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_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/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 c82214860fee184bc373305d606fd208dd65fd42 ..................................................................................................................................................................................................................................................................... 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 16:34:28,647 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:34:28,648 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:34:28,656 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:34:28,656 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:34:28,656 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:34:28,657 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:34:28,658 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:34:28,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:34:28,660 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:34:28,660 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:34:28,660 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:34:28,661 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:34:28,661 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:34:28,662 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:34:28,663 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:34:28,663 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:34:28,664 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:34:28,666 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:34:28,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:34:28,667 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:34:28,668 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:34:28,670 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:34:28,670 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:34:28,670 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:34:28,671 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:34:28,671 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:34:28,672 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:34:28,672 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:34:28,673 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:34:28,673 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:34:28,674 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:34:28,674 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:34:28,674 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:34:28,675 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:34:28,675 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:34:28,675 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/svcomp-Reach-32bit-PetriAutomizer_Default.epf [2018-11-18 16:34:28,684 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:34:28,684 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:34:28,685 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:34:28,685 INFO L133 SettingsManager]: * Process only entry and re-entry procedures=false [2018-11-18 16:34:28,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:34:28,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:34:28,686 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:34:28,687 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:34:28,687 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:34:28,688 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:34:28,688 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 16:34:28,688 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_a8655436-0190-4b87-8402-bcad8db17ac1/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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-18 16:34:28,710 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:34:28,717 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:34:28,719 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:34:28,720 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:34:28,720 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:34:28,721 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 16:34:28,763 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/cb2c9c6cd/467c0b1b585f40abacce3fc35d1368fd/FLAG19cc9974a [2018-11-18 16:34:29,141 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:34:29,141 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 16:34:29,145 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/cb2c9c6cd/467c0b1b585f40abacce3fc35d1368fd/FLAG19cc9974a [2018-11-18 16:34:29,153 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/cb2c9c6cd/467c0b1b585f40abacce3fc35d1368fd [2018-11-18 16:34:29,155 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:34:29,155 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:34:29,156 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:34:29,156 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:34:29,158 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:34:29,158 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,160 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38d8551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29, skipping insertion in model container [2018-11-18 16:34:29,160 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,166 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:34:29,177 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:34:29,272 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:34:29,274 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:34:29,283 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:34:29,290 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:34:29,291 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29 WrapperNode [2018-11-18 16:34:29,291 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:34:29,291 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:34:29,291 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:34:29,291 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:34:29,299 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,299 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,302 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,302 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,306 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... [2018-11-18 16:34:29,307 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:34:29,307 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:34:29,307 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:34:29,307 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:34:29,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/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 16:34:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:34:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:34:29,391 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:34:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:34:29,391 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:34:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2018-11-18 16:34:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:34:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:34:29,392 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:34:29,487 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:34:29,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:29 BoogieIcfgContainer [2018-11-18 16:34:29,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:34:29,488 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:34:29,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:34:29,490 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:34:29,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:34:29" (1/3) ... [2018-11-18 16:34:29,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411db9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:34:29, skipping insertion in model container [2018-11-18 16:34:29,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:29" (2/3) ... [2018-11-18 16:34:29,491 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@411db9d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:34:29, skipping insertion in model container [2018-11-18 16:34:29,491 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:29" (3/3) ... [2018-11-18 16:34:29,493 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-18 16:34:29,498 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:34:29,503 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:34:29,512 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:34:29,530 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:34:29,530 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:34:29,531 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:34:29,531 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:34:29,531 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:34:29,531 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:34:29,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:34:29,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:34:29,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:34:29,542 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 16:34:29,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 16:34:29,545 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:34:29,546 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:34:29,547 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:34:29,551 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:34:29,552 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-18 16:34:29,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-18 16:34:29,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-18 16:34:29,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:34:29,582 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:34:29,582 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 16:34:29,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:34:29,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 16:34:29,613 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 16:34:29,628 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:34:29 BoogieIcfgContainer [2018-11-18 16:34:29,628 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:34:29,628 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:34:29,628 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:34:29,628 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:34:29,629 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:29" (3/4) ... [2018-11-18 16:34:29,631 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 16:34:29,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:34:29,632 INFO L168 Benchmark]: Toolchain (without parser) took 477.13 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -167.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:34:29,633 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:34:29,634 INFO L168 Benchmark]: CACSL2BoogieTranslator took 135.09 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:29,634 INFO L168 Benchmark]: Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:34:29,635 INFO L168 Benchmark]: RCFGBuilder took 180.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:29,635 INFO L168 Benchmark]: TraceAbstraction took 139.38 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:29,636 INFO L168 Benchmark]: Witness Printer took 3.60 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 16:34:29,639 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 135.09 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.85 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 180.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 153.6 MB). Free memory was 948.4 MB in the beginning and 1.1 GB in the end (delta: -188.6 MB). Peak memory consumption was 16.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 139.38 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: 10.2 MB). Peak memory consumption was 10.2 MB. Max. memory is 11.5 GB. * Witness Printer took 3.60 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: 13]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 13. Possible FailurePath: [L6] float f = __VERIFIER_nondet_float(); [L7] double d; [L8] unsigned char x = __VERIFIER_nondet_uchar(); [L10] d=f VAL [d=0, f=0, x=1] [L12] COND TRUE f==x VAL [d=0, f=0, x=1] [L13] COND TRUE !(d==x) VAL [d=0, f=0, x=1] [L13] __VERIFIER_error() VAL [d=0, f=0, x=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 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 16:34:31,044 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 16:34:31,045 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 16:34:31,052 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 16:34:31,053 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 16:34:31,053 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 16:34:31,054 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 16:34:31,055 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 16:34:31,056 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 16:34:31,057 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 16:34:31,058 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 16:34:31,058 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 16:34:31,058 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 16:34:31,059 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 16:34:31,060 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 16:34:31,060 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 16:34:31,061 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 16:34:31,062 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 16:34:31,063 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 16:34:31,064 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 16:34:31,065 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 16:34:31,066 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 16:34:31,067 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 16:34:31,068 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 16:34:31,068 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 16:34:31,068 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 16:34:31,070 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 16:34:31,070 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 16:34:31,071 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 16:34:31,071 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 16:34:31,072 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 16:34:31,072 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 16:34:31,072 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 16:34:31,072 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 16:34:31,073 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 16:34:31,073 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 16:34:31,074 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-18 16:34:31,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 16:34:31,084 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 16:34:31,084 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 16:34:31,085 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-18 16:34:31,085 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-18 16:34:31,085 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-18 16:34:31,085 INFO L133 SettingsManager]: * Use SBE=true [2018-11-18 16:34:31,086 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 16:34:31,086 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 16:34:31,087 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 16:34:31,087 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 16:34:31,088 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-18 16:34:31,088 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 16:34:31,089 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 16:34:31,089 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 16:34:31,089 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_a8655436-0190-4b87-8402-bcad8db17ac1/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 -> c82214860fee184bc373305d606fd208dd65fd42 [2018-11-18 16:34:31,119 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 16:34:31,127 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 16:34:31,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 16:34:31,131 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 16:34:31,131 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 16:34:31,132 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/../../sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 16:34:31,175 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/0de1197fb/14334af2caa343ef96ee54b4efd4c284/FLAG5957192b4 [2018-11-18 16:34:31,506 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 16:34:31,506 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/sv-benchmarks/c/floats-cbmc-regression/float12_true-unreach-call_true-termination.i [2018-11-18 16:34:31,510 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/0de1197fb/14334af2caa343ef96ee54b4efd4c284/FLAG5957192b4 [2018-11-18 16:34:31,949 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/data/0de1197fb/14334af2caa343ef96ee54b4efd4c284 [2018-11-18 16:34:31,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 16:34:31,951 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-18 16:34:31,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 16:34:31,952 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 16:34:31,955 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 16:34:31,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:31" (1/1) ... [2018-11-18 16:34:31,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@e5b7b56 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:31, skipping insertion in model container [2018-11-18 16:34:31,958 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 04:34:31" (1/1) ... [2018-11-18 16:34:31,963 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 16:34:31,973 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 16:34:32,074 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:34:32,079 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 16:34:32,091 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 16:34:32,102 INFO L195 MainTranslator]: Completed translation [2018-11-18 16:34:32,102 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32 WrapperNode [2018-11-18 16:34:32,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 16:34:32,103 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 16:34:32,103 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 16:34:32,103 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 16:34:32,114 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,114 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,119 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,119 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,123 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,126 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... [2018-11-18 16:34:32,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 16:34:32,128 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 16:34:32,128 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 16:34:32,128 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 16:34:32,128 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/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 16:34:32,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 16:34:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 16:34:32,169 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_float [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_uchar [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 16:34:32,169 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 16:34:32,362 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 16:34:32,363 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:32 BoogieIcfgContainer [2018-11-18 16:34:32,363 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 16:34:32,364 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 16:34:32,364 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 16:34:32,365 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 16:34:32,365 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 04:34:31" (1/3) ... [2018-11-18 16:34:32,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bcc531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:34:32, skipping insertion in model container [2018-11-18 16:34:32,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 04:34:32" (2/3) ... [2018-11-18 16:34:32,366 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63bcc531 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 04:34:32, skipping insertion in model container [2018-11-18 16:34:32,366 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:32" (3/3) ... [2018-11-18 16:34:32,368 INFO L112 eAbstractionObserver]: Analyzing ICFG float12_true-unreach-call_true-termination.i [2018-11-18 16:34:32,373 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 16:34:32,377 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 16:34:32,385 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 16:34:32,403 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 16:34:32,403 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 16:34:32,403 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 16:34:32,403 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 16:34:32,403 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 16:34:32,403 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 16:34:32,403 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 16:34:32,403 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 16:34:32,403 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 16:34:32,414 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-18 16:34:32,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 16:34:32,419 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 16:34:32,419 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 16:34:32,421 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 16:34:32,424 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 16:34:32,424 INFO L82 PathProgramCache]: Analyzing trace with hash -689330286, now seen corresponding path program 1 times [2018-11-18 16:34:32,427 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 16:34:32,427 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/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 16:34:32,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 16:34:32,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 16:34:32,465 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 16:34:34,087 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 16:34:34,087 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 16:34:34,095 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 16:34:34,095 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 16:34:34,098 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 16:34:34,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 16:34:34,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 16:34:34,107 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 4 states. [2018-11-18 16:34:36,566 WARN L180 SmtUtils]: Spent 1.86 s on a formula simplification that was a NOOP. DAG size: 11 [2018-11-18 16:34:37,015 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 16:34:37,015 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2018-11-18 16:34:37,025 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 16:34:37,026 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-11-18 16:34:37,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 16:34:37,030 INFO L225 Difference]: With dead ends: 19 [2018-11-18 16:34:37,030 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 16:34:37,032 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 16:34:37,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 16:34:37,045 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 16:34:37,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 16:34:37,046 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 16:34:37,047 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2018-11-18 16:34:37,047 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 16:34:37,047 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 16:34:37,048 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 16:34:37,048 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 16:34:37,048 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 16:34:37,051 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 16:34:37,077 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 16:34:37,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:34:37,077 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 16:34:37,078 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 16:34:37,078 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 16:34:37,078 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 16:34:37,078 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 14) the Hoare annotation is: true [2018-11-18 16:34:37,078 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 13) no Hoare annotation was computed. [2018-11-18 16:34:37,078 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 14) no Hoare annotation was computed. [2018-11-18 16:34:37,079 INFO L425 ceAbstractionStarter]: For program point L13(line 13) no Hoare annotation was computed. [2018-11-18 16:34:37,079 INFO L425 ceAbstractionStarter]: For program point L12(lines 12 13) no Hoare annotation was computed. [2018-11-18 16:34:37,079 INFO L425 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-11-18 16:34:37,089 INFO L425 ceAbstractionStarter]: For program point L12-1(lines 4 14) no Hoare annotation was computed. [2018-11-18 16:34:37,091 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 04:34:37 BoogieIcfgContainer [2018-11-18 16:34:37,091 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 16:34:37,092 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 16:34:37,092 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 16:34:37,092 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 16:34:37,092 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 04:34:32" (3/4) ... [2018-11-18 16:34:37,095 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 16:34:37,101 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 16:34:37,105 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 16:34:37,107 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 16:34:37,108 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 16:34:37,108 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 16:34:37,130 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a8655436-0190-4b87-8402-bcad8db17ac1/bin-2019/uautomizer/witness.graphml [2018-11-18 16:34:37,131 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 16:34:37,131 INFO L168 Benchmark]: Toolchain (without parser) took 5180.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -135.4 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 16:34:37,132 INFO L168 Benchmark]: CDTParser took 0.15 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 16:34:37,132 INFO L168 Benchmark]: CACSL2BoogieTranslator took 150.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:37,132 INFO L168 Benchmark]: Boogie Preprocessor took 24.31 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:37,133 INFO L168 Benchmark]: RCFGBuilder took 235.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:37,133 INFO L168 Benchmark]: TraceAbstraction took 4727.96 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-18 16:34:37,134 INFO L168 Benchmark]: Witness Printer took 38.85 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 16:34:37,136 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 150.65 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.31 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 235.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -185.5 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4727.96 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * Witness Printer took 38.85 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: - PositiveResult [Line: 13]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. SAFE Result, 4.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 2.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 10 SDtfs, 6 SDslu, 15 SDs, 0 SdLazy, 5 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 1 QuantifiedInterpolants, 154 SizeOfPredicates, 3 NumberOfNonLiveVariables, 16 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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...