./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0cd3be1d Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ............................................................................................................................................................................................................................................ 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_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 7de8352890f1d55270cdee8daa00c3bfaf4226ea ................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0cd3be1 [2018-11-28 12:45:26,115 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:45:26,116 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:45:26,122 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:45:26,123 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:45:26,123 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:45:26,124 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:45:26,126 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:45:26,127 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:45:26,127 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:45:26,128 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:45:26,128 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:45:26,129 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:45:26,129 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:45:26,130 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:45:26,131 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:45:26,131 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:45:26,133 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:45:26,134 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:45:26,135 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:45:26,136 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:45:26,137 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:45:26,138 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:45:26,138 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:45:26,139 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:45:26,139 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:45:26,140 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:45:26,140 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:45:26,141 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:45:26,142 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:45:26,142 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:45:26,142 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:45:26,143 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:45:26,143 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:45:26,143 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:45:26,144 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:45:26,144 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 12:45:26,155 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:45:26,155 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:45:26,157 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:45:26,158 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:45:26,158 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:45:26,158 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:45:26,158 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:45:26,159 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:45:26,159 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:45:26,160 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:45:26,160 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:45:26,160 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:45:26,160 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:45:26,160 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:45:26,160 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:45:26,161 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:45:26,161 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:45:26,161 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:45:26,161 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:45:26,161 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:45:26,161 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:45:26,162 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:45:26,162 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 12:45:26,162 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:45:26,162 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 12:45:26,162 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_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-28 12:45:26,186 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:45:26,195 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:45:26,198 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:45:26,199 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:45:26,199 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:45:26,200 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:26,239 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/1b2f55768/0a019551c51f4db8abc2b00fa188ce41/FLAG72eb9445b [2018-11-28 12:45:26,552 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:45:26,552 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:26,556 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/1b2f55768/0a019551c51f4db8abc2b00fa188ce41/FLAG72eb9445b [2018-11-28 12:45:26,566 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/1b2f55768/0a019551c51f4db8abc2b00fa188ce41 [2018-11-28 12:45:26,568 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:45:26,569 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:45:26,569 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:26,569 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:45:26,572 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:45:26,573 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,574 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5274901a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26, skipping insertion in model container [2018-11-28 12:45:26,574 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,579 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:45:26,588 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:45:26,683 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:26,685 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:45:26,694 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:26,702 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:45:26,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26 WrapperNode [2018-11-28 12:45:26,703 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:26,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:26,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:45:26,703 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:45:26,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,711 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,714 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:26,715 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:45:26,715 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:45:26,715 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:45:26,720 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,720 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,757 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,758 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,759 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... [2018-11-28 12:45:26,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:45:26,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:45:26,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:45:26,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:45:26,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 [2018-11-28 12:45:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:45:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:45:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:45:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:45:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:45:26,794 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:45:26,794 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:45:26,795 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:45:26,879 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:45:26,879 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:45:26,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:26 BoogieIcfgContainer [2018-11-28 12:45:26,879 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:45:26,880 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:45:26,880 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:45:26,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:45:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:45:26" (1/3) ... [2018-11-28 12:45:26,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abd293e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:45:26, skipping insertion in model container [2018-11-28 12:45:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:26" (2/3) ... [2018-11-28 12:45:26,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4abd293e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:45:26, skipping insertion in model container [2018-11-28 12:45:26,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:26" (3/3) ... [2018-11-28 12:45:26,883 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:26,889 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:45:26,893 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:45:26,902 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:45:26,920 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:45:26,920 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:45:26,920 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:45:26,920 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:45:26,921 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:45:26,921 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:45:26,921 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:45:26,921 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:45:26,921 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:45:26,932 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 12:45:26,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:45:26,935 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:45:26,935 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:45:26,937 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:45:26,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:26,941 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-28 12:45:26,942 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 12:45:26,942 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 12:45:26,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:26,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:45:26,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 12:45:26,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:26,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 12:45:27,009 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 12:45:27,023 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:45:27 BoogieIcfgContainer [2018-11-28 12:45:27,024 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:45:27,024 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:45:27,024 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:45:27,024 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:45:27,024 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:26" (3/4) ... [2018-11-28 12:45:27,026 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 12:45:27,026 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:45:27,027 INFO L168 Benchmark]: Toolchain (without parser) took 458.72 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 958.7 MB in the beginning and 1.1 GB in the end (delta: -148.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:27,028 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:27,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 133.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:27,029 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.40 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:45:27,029 INFO L168 Benchmark]: Boogie Preprocessor took 45.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:27,029 INFO L168 Benchmark]: RCFGBuilder took 119.44 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:27,030 INFO L168 Benchmark]: TraceAbstraction took 144.00 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:45:27,030 INFO L168 Benchmark]: Witness Printer took 2.61 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. [2018-11-28 12:45:27,032 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 985.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 133.48 ms. Allocated memory is still 1.0 GB. Free memory was 958.7 MB in the beginning and 947.8 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.40 ms. Allocated memory is still 1.0 GB. Free memory is still 947.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.9 MB). Free memory was 947.8 MB in the beginning and 1.1 GB in the end (delta: -187.6 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 119.44 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: 14.5 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 144.00 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 2.61 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: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 22, overapproximation of someBinaryArithmeticDOUBLEoperation at line 19. Possible FailurePath: [L13] double x,y; [L15] x = __VERIFIER_nondet_double() [L18] y = x*x - x VAL [x=2] [L19] COND TRUE y >= 0 [L19] y = x / 10. VAL [x=2] [L22] CALL __VERIFIER_assert(y >= 0. && y <= 4.) VAL [\old(cond)=0] [L9] COND TRUE !(cond) VAL [\old(cond)=0, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 18 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=18occurred 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, 10 NumberOfCodeBlocks, 10 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 0.1.23-0cd3be1 [2018-11-28 12:45:28,464 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 12:45:28,466 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 12:45:28,474 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 12:45:28,474 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 12:45:28,475 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 12:45:28,476 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 12:45:28,477 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 12:45:28,478 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 12:45:28,478 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 12:45:28,479 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 12:45:28,479 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 12:45:28,480 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 12:45:28,481 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 12:45:28,481 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 12:45:28,482 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 12:45:28,482 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 12:45:28,484 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 12:45:28,485 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 12:45:28,486 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 12:45:28,486 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 12:45:28,487 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 12:45:28,489 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 12:45:28,489 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 12:45:28,489 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 12:45:28,490 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 12:45:28,490 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 12:45:28,491 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 12:45:28,491 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 12:45:28,492 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 12:45:28,492 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 12:45:28,493 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 12:45:28,493 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 12:45:28,493 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 12:45:28,494 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 12:45:28,494 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 12:45:28,494 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 12:45:28,504 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 12:45:28,504 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 12:45:28,505 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 12:45:28,505 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 12:45:28,505 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 12:45:28,506 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 12:45:28,506 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 12:45:28,507 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 12:45:28,508 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 12:45:28,508 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 12:45:28,508 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 12:45:28,509 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 12:45:28,509 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 12:45:28,509 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 12:45:28,509 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 12:45:28,509 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_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 -> 7de8352890f1d55270cdee8daa00c3bfaf4226ea [2018-11-28 12:45:28,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 12:45:28,541 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 12:45:28,543 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 12:45:28,544 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 12:45:28,545 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 12:45:28,545 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/../../sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:28,590 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/39297cf67/15393a7add4147708b6c5b5f98ca7670/FLAGe57c593d1 [2018-11-28 12:45:28,906 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 12:45:28,906 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/sv-benchmarks/c/float-benchs/zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:28,910 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/39297cf67/15393a7add4147708b6c5b5f98ca7670/FLAGe57c593d1 [2018-11-28 12:45:29,345 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/data/39297cf67/15393a7add4147708b6c5b5f98ca7670 [2018-11-28 12:45:29,348 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 12:45:29,349 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 12:45:29,350 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:29,350 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 12:45:29,353 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 12:45:29,353 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,356 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5192e415 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29, skipping insertion in model container [2018-11-28 12:45:29,356 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 12:45:29,374 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 12:45:29,477 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:29,482 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 12:45:29,492 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 12:45:29,501 INFO L195 MainTranslator]: Completed translation [2018-11-28 12:45:29,501 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29 WrapperNode [2018-11-28 12:45:29,501 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 12:45:29,502 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:29,502 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 12:45:29,502 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 12:45:29,507 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,511 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,515 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 12:45:29,516 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 12:45:29,516 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 12:45:29,516 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 12:45:29,521 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,521 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,522 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,522 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,526 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,527 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,528 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... [2018-11-28 12:45:29,529 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 12:45:29,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 12:45:29,530 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 12:45:29,530 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 12:45:29,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 [2018-11-28 12:45:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 12:45:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 12:45:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 12:45:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 12:45:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 12:45:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 12:45:29,604 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 12:45:29,604 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 12:45:32,634 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 12:45:32,634 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 12:45:32,635 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:32 BoogieIcfgContainer [2018-11-28 12:45:32,635 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 12:45:32,635 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 12:45:32,636 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 12:45:32,637 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 12:45:32,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 12:45:29" (1/3) ... [2018-11-28 12:45:32,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431111ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:45:32, skipping insertion in model container [2018-11-28 12:45:32,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 12:45:29" (2/3) ... [2018-11-28 12:45:32,638 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@431111ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 12:45:32, skipping insertion in model container [2018-11-28 12:45:32,638 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:32" (3/3) ... [2018-11-28 12:45:32,639 INFO L112 eAbstractionObserver]: Analyzing ICFG zonotope_tight_true-unreach-call_true-termination.c [2018-11-28 12:45:32,645 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 12:45:32,649 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 12:45:32,657 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 12:45:32,676 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 12:45:32,677 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 12:45:32,677 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 12:45:32,677 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 12:45:32,677 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 12:45:32,677 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 12:45:32,677 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 12:45:32,678 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 12:45:32,678 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 12:45:32,689 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2018-11-28 12:45:32,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:45:32,692 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:45:32,693 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:45:32,695 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:45:32,698 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:45:32,699 INFO L82 PathProgramCache]: Analyzing trace with hash -1736771137, now seen corresponding path program 1 times [2018-11-28 12:45:32,701 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:45:32,701 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 [2018-11-28 12:45:32,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:45:33,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:45:33,120 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:45:35,342 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from false [2018-11-28 12:45:37,495 WARN L854 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) c_main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) is different from true [2018-11-28 12:45:52,377 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven main_~x~0 .cse0) ((_ to_fp 11 53) roundNearestTiesToEven 4.0)))))) .cse1) (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (and (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse2) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse2)))) .cse1))) is different from false [2018-11-28 12:46:03,499 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse1) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse1))))) (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq main_~x~0 .cse2) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven main_~x~0 .cse2) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-28 12:46:14,607 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0)))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) is different from false [2018-11-28 12:46:16,789 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (not (fp.geq (fp.div roundNearestTiesToEven v_prenex_1 .cse0) (_ +zero 11 53))) (fp.geq v_prenex_1 (_ +zero 11 53)) (fp.leq v_prenex_1 .cse0)))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (fp.leq main_~x~0 .cse1) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.leq (fp.div roundNearestTiesToEven main_~x~0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))))))) is different from true [2018-11-28 12:46:16,792 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:46:16,793 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:46:16,805 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:46:16,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:46:16,809 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:46:16,816 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:46:16,817 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-28 12:46:16,818 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 7 states. [2018-11-28 12:46:20,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:46:20,806 INFO L93 Difference]: Finished difference Result 33 states and 36 transitions. [2018-11-28 12:46:20,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:46:20,844 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-28 12:46:20,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:46:20,850 INFO L225 Difference]: With dead ends: 33 [2018-11-28 12:46:20,850 INFO L226 Difference]: Without dead ends: 11 [2018-11-28 12:46:20,852 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 13.6s TimeCoverageRelationStatistics Valid=11, Invalid=5, Unknown=6, NotChecked=20, Total=42 [2018-11-28 12:46:20,865 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-11-28 12:46:20,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-11-28 12:46:20,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-11-28 12:46:20,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 10 transitions. [2018-11-28 12:46:20,878 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 10 transitions. Word has length 10 [2018-11-28 12:46:20,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:46:20,878 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 10 transitions. [2018-11-28 12:46:20,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:46:20,879 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 10 transitions. [2018-11-28 12:46:20,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-28 12:46:20,879 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 12:46:20,879 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 12:46:20,879 INFO L423 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 12:46:20,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 12:46:20,880 INFO L82 PathProgramCache]: Analyzing trace with hash -1734924095, now seen corresponding path program 1 times [2018-11-28 12:46:20,880 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 12:46:20,880 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/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 [2018-11-28 12:46:20,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 12:46:21,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 12:46:21,306 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 12:46:31,727 WARN L180 SmtUtils]: Spent 8.72 s on a formula simplification that was a NOOP. DAG size: 12 [2018-11-28 12:46:33,773 WARN L832 $PredicateComparison]: unable to prove that (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) c_main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) is different from false [2018-11-28 12:46:50,912 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse1 (= |c___VERIFIER_assert_#in~cond| (_ bv0 32)))) (or (and (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1) (and (= (bvadd |c___VERIFIER_assert_#in~cond| (_ bv4294967295 32)) (_ bv0 32)) (exists ((v_prenex_5 (_ FloatingPoint 11 53))) (let ((.cse3 (fp.mul roundNearestTiesToEven v_prenex_5 v_prenex_5))) (let ((.cse2 (fp.add roundNearestTiesToEven .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)))) (and (fp.leq .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 4.0)) (fp.leq v_prenex_5 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq .cse2 (_ +zero 11 53)) (fp.geq v_prenex_5 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse3 v_prenex_5) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) (and (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse4 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse4 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse4 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) .cse1))) is different from false [2018-11-28 12:47:02,683 WARN L832 $PredicateComparison]: unable to prove that (let ((.cse0 (= (_ bv0 32) c___VERIFIER_assert_~cond))) (or (and .cse0 (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (and .cse0 (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse2 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse2 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse2 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) (= (bvadd c___VERIFIER_assert_~cond (_ bv4294967295 32)) (_ bv0 32)))) is different from false [2018-11-28 12:47:12,944 WARN L832 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from false [2018-11-28 12:47:14,988 WARN L854 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 (fp.mul roundNearestTiesToEven v_prenex_3 v_prenex_3))) (and (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (not (fp.geq (fp.add roundNearestTiesToEven .cse0 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) (_ +zero 11 53))) (fp.geq v_prenex_3 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse0 v_prenex_3) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (not (fp.leq (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) ((_ to_fp 11 53) roundNearestTiesToEven 4.0))) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32)))))))) is different from true [2018-11-28 12:47:14,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 12:47:14,990 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 12:47:15,000 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 12:47:15,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 12:47:15,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 12:47:15,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 12:47:15,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=6, Unknown=5, NotChecked=20, Total=42 [2018-11-28 12:47:15,001 INFO L87 Difference]: Start difference. First operand 11 states and 10 transitions. Second operand 7 states. [2018-11-28 12:47:17,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 12:47:17,073 INFO L93 Difference]: Finished difference Result 11 states and 10 transitions. [2018-11-28 12:47:17,116 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-28 12:47:17,116 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 10 [2018-11-28 12:47:17,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 12:47:17,117 INFO L225 Difference]: With dead ends: 11 [2018-11-28 12:47:17,117 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 12:47:17,118 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 4 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 21.5s TimeCoverageRelationStatistics Valid=11, Invalid=6, Unknown=5, NotChecked=20, Total=42 [2018-11-28 12:47:17,118 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 12:47:17,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 12:47:17,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 12:47:17,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 12:47:17,118 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-11-28 12:47:17,119 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 12:47:17,119 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 12:47:17,119 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 12:47:17,119 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 12:47:17,119 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 12:47:17,122 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 12:47:41,877 WARN L180 SmtUtils]: Spent 24.72 s on a formula simplification that was a NOOP. DAG size: 26 [2018-11-28 12:47:43,920 WARN L180 SmtUtils]: Spent 2.04 s on a formula simplification. DAG size of input: 101 DAG size of output: 1 [2018-11-28 12:47:43,921 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 12:47:43,921 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:47:43,922 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 12:47:43,922 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 12:47:43,922 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 12:47:43,922 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 12:47:43,922 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 20) the Hoare annotation is: (or (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0))) (and (= (fp.div roundNearestTiesToEven main_~x~0 .cse0) main_~y~0) (fp.leq main_~x~0 .cse0) (fp.geq main_~x~0 (_ +zero 11 53))))) (and (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (exists ((main_~x~0 (_ FloatingPoint 11 53))) (let ((.cse1 (fp.mul roundNearestTiesToEven main_~x~0 main_~x~0))) (and (= (fp.add roundNearestTiesToEven .cse1 ((_ to_fp 11 53) roundNearestTiesToEven 2.0)) main_~y~0) (fp.leq main_~x~0 ((_ to_fp 11 53) roundNearestTiesToEven 10.0)) (fp.geq main_~x~0 (_ +zero 11 53)) (not (fp.geq (fp.sub roundNearestTiesToEven .cse1 main_~x~0) ((_ to_fp 11 53) roundNearestTiesToEven (_ bv0 32))))))))) [2018-11-28 12:47:43,922 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 11 24) the Hoare annotation is: true [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 11 24) no Hoare annotation was computed. [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 11 24) no Hoare annotation was computed. [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point L19(lines 19 20) no Hoare annotation was computed. [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-28 12:47:43,923 INFO L451 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 9) the Hoare annotation is: true [2018-11-28 12:47:43,923 INFO L448 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 9) no Hoare annotation was computed. [2018-11-28 12:47:43,924 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-28 12:47:43,924 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-28 12:47:43,924 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-28 12:47:43,926 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 12:47:43 BoogieIcfgContainer [2018-11-28 12:47:43,926 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 12:47:43,926 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 12:47:43,926 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 12:47:43,927 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 12:47:43,927 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 12:45:32" (3/4) ... [2018-11-28 12:47:43,929 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 12:47:43,934 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 12:47:43,934 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 12:47:43,934 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-28 12:47:43,938 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 12:47:43,938 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 12:47:43,938 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 12:47:43,963 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f384bf23-9fa8-45b8-ad77-8c82b7676a8f/bin-2019/uautomizer/witness.graphml [2018-11-28 12:47:43,964 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 12:47:43,964 INFO L168 Benchmark]: Toolchain (without parser) took 134615.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 947.4 MB in the beginning and 1.1 GB in the end (delta: -120.7 MB). Peak memory consumption was 29.2 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:43,965 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:47:43,965 INFO L168 Benchmark]: CACSL2BoogieTranslator took 151.80 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 936.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:43,965 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 936.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 12:47:43,966 INFO L168 Benchmark]: Boogie Preprocessor took 13.73 ms. Allocated memory is still 1.0 GB. Free memory was 936.7 MB in the beginning and 931.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:43,966 INFO L168 Benchmark]: RCFGBuilder took 3105.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 931.3 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:43,966 INFO L168 Benchmark]: TraceAbstraction took 131290.70 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. [2018-11-28 12:47:43,967 INFO L168 Benchmark]: Witness Printer took 37.29 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. [2018-11-28 12:47:43,968 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 978.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 151.80 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 936.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 13.48 ms. Allocated memory is still 1.0 GB. Free memory is still 936.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.73 ms. Allocated memory is still 1.0 GB. Free memory was 936.7 MB in the beginning and 931.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3105.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.9 MB). Free memory was 931.3 MB in the beginning and 1.1 GB in the end (delta: -191.6 MB). Peak memory consumption was 19.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 131290.70 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: 54.8 MB). Peak memory consumption was 54.8 MB. Max. memory is 11.5 GB. * Witness Printer took 37.29 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: 9]: 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 4 procedures, 18 locations, 1 error locations. SAFE Result, 131.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 6.1s AutomataDifference, 0.0s DeadEndRemovalTime, 26.7s HoareAnnotationTime, HoareTripleCheckerStatistics: 21 SDtfs, 3 SDslu, 59 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 2 SolverUnknown, 0 SolverNotchecked, 5.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 8 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 35.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 7 PreInvPairs, 8 NumberOfFragments, 66 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 381 FormulaSimplificationTreeSizeReductionInter, 26.7s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 97.4s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 8 QuantifiedInterpolants, 4689 SizeOfPredicates, 6 NumberOfNonLiveVariables, 42 ConjunctsInSsa, 12 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...