./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdec0b8c4f67592438879c69401fb208f793f01e ...................................................................................................................................................................................................................................................................................................................................................................................... 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_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash cdec0b8c4f67592438879c69401fb208f793f01e ................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 04:17:15,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:17:15,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:17:15,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:17:15,727 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:17:15,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:17:15,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:17:15,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:17:15,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:17:15,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:17:15,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:17:15,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:17:15,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:17:15,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:17:15,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:17:15,734 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:17:15,735 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:17:15,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:17:15,737 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:17:15,738 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:17:15,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:17:15,740 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:17:15,741 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:17:15,741 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:17:15,742 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:17:15,742 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:17:15,743 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:17:15,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:17:15,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:17:15,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:17:15,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:17:15,744 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:17:15,745 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:17:15,745 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:17:15,745 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:17:15,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:17:15,746 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-23 04:17:15,753 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:17:15,754 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:17:15,754 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:17:15,754 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:17:15,755 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-23 04:17:15,755 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-23 04:17:15,756 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:17:15,756 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:17:15,756 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:17:15,756 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:17:15,757 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:17:15,758 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:17:15,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:17:15,759 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-23 04:17:15,759 INFO L133 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan 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 -> Taipan 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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-11-23 04:17:15,784 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:17:15,793 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:17:15,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:17:15,797 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:17:15,797 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:17:15,798 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:15,840 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/0d8ebc458/795e96fff2a7450895c23ab99d2c7911/FLAG319e7360a [2018-11-23 04:17:16,264 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:17:16,264 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:16,269 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/0d8ebc458/795e96fff2a7450895c23ab99d2c7911/FLAG319e7360a [2018-11-23 04:17:16,279 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/0d8ebc458/795e96fff2a7450895c23ab99d2c7911 [2018-11-23 04:17:16,282 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:17:16,283 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:17:16,283 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:17:16,283 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:17:16,286 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:17:16,286 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26e45308 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16, skipping insertion in model container [2018-11-23 04:17:16,289 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,295 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:17:16,308 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:17:16,427 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:17:16,431 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:17:16,445 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:17:16,454 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:17:16,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16 WrapperNode [2018-11-23 04:17:16,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:17:16,455 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:17:16,455 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:17:16,455 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:17:16,461 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,464 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,468 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:17:16,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:17:16,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:17:16,469 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:17:16,475 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,475 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,475 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,478 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,479 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,480 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... [2018-11-23 04:17:16,481 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:17:16,481 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:17:16,481 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:17:16,481 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:17:16,482 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/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 [2018-11-23 04:17:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:17:16,555 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:17:16,555 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:17:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:17:16,556 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:17:16,556 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:17:16,651 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:17:16,651 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 04:17:16,652 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:16 BoogieIcfgContainer [2018-11-23 04:17:16,652 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:17:16,652 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:17:16,652 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:17:16,654 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:17:16,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:17:16" (1/3) ... [2018-11-23 04:17:16,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1348a5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:16, skipping insertion in model container [2018-11-23 04:17:16,655 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:16" (2/3) ... [2018-11-23 04:17:16,655 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1348a5d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:16, skipping insertion in model container [2018-11-23 04:17:16,656 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:16" (3/3) ... [2018-11-23 04:17:16,657 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:16,663 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:17:16,668 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:17:16,679 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:17:16,706 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:17:16,706 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:17:16,706 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:17:16,706 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:17:16,706 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:17:16,706 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:17:16,706 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:17:16,706 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:17:16,720 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 04:17:16,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 04:17:16,724 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:17:16,724 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:17:16,726 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:17:16,729 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:17:16,729 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-23 04:17:16,731 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-23 04:17:16,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:17:16,762 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:17:16,762 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 04:17:16,762 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-23 04:17:16,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:17:16,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-23 04:17:16,800 INFO L469 BasicCegarLoop]: Counterexample might be feasible ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder.RCFGBacktranslator [?] CALL call ULTIMATE.init(); [?] assume true; [?] RET #16#return; [?] CALL call #t~ret0 := main(#in~argc, #in~argv.base, #in~argv.offset); VAL [|main_#in~argc|=2, |main_#in~argv.base|=1, |main_#in~argv.offset|=0] [?] ~argc := #in~argc;~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset;~f~0 := 6.379410192901256E-31;~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15);~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45);~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [main_~argc=2, main_~argv.base=1, main_~argv.offset=0, main_~f~0=(/ 13567505.0 21267647932558653966460912964485513216.0), |main_#in~argc|=2, |main_#in~argv.base|=1, |main_#in~argv.offset|=0] [?] assume !~someBinaryFLOATComparisonOperation(~result~0, ~target~0); VAL [main_~argc=2, main_~argv.base=1, main_~argv.offset=0, main_~f~0=(/ 13567505.0 21267647932558653966460912964485513216.0), |main_#in~argc|=2, |main_#in~argv.base|=1, |main_#in~argv.offset|=0] [?] assume !false; VAL [main_~argc=2, main_~argv.base=1, main_~argv.offset=0, main_~f~0=(/ 13567505.0 21267647932558653966460912964485513216.0), |main_#in~argc|=2, |main_#in~argv.base|=1, |main_#in~argv.offset|=0] [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv.base, #in~argv.offset); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assume !~someBinaryFLOATComparisonOperation(~result~0, ~target~0); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.preprocessor.BoogiePreprocessorBacktranslator [?] CALL call ULTIMATE.init(); [?] ensures true; [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv.base, #in~argv.offset); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv.base, ~argv.offset := #in~argv.base, #in~argv.offset; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assume !~someBinaryFLOATComparisonOperation(~result~0, ~target~0); VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv.base=1, #in~argv.offset=0, ~argc=2, ~argv.base=1, ~argv.offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv := #in~argv; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~result~0, ~target~0) VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] ----- ----- class de.uni_freiburg.informatik.ultimate.boogie.procedureinliner.backtranslation.InlinerBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv := #in~argv; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~result~0, ~target~0) VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv := #in~argv; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~result~0, ~target~0) VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] ----- ----- class de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieBacktranslator [?] CALL call ULTIMATE.init(); [?] RET call ULTIMATE.init(); [?] CALL call #t~ret0 := main(#in~argc, #in~argv); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0] [L3-L13] ~argc := #in~argc; [L3-L13] ~argv := #in~argv; [L4] ~f~0 := 6.379410192901256E-31; [L5] ~g~0 := ~someUnaryFLOAToperation(1.098297859519E-15); [L6] ~target~0 := ~someUnaryFLOAToperation(1.401298464324817E-45); [L8] ~result~0 := ~someBinaryArithmeticFLOAToperation(~f~0, ~g~0); VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !~someBinaryFLOATComparisonOperation(~result~0, ~target~0) VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L10] assert false; VAL [#in~argc=2, #in~argv!base=1, #in~argv!offset=0, ~argc=2, ~argv!base=1, ~argv!offset=0, ~f~0=13567505/21267647932558653966460912964485513216] [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !(result == target) VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] __VERIFIER_error() VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] ----- [2018-11-23 04:17:16,826 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:17:16 BoogieIcfgContainer [2018-11-23 04:17:16,826 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:17:16,826 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:17:16,826 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:17:16,826 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:17:16,827 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:16" (3/4) ... [2018-11-23 04:17:16,829 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-23 04:17:16,829 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:17:16,830 INFO L168 Benchmark]: Toolchain (without parser) took 547.77 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 958.2 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:17:16,831 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:17:16,831 INFO L168 Benchmark]: CACSL2BoogieTranslator took 171.38 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:17:16,832 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 04:17:16,833 INFO L168 Benchmark]: Boogie Preprocessor took 12.04 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:17:16,833 INFO L168 Benchmark]: RCFGBuilder took 170.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-11-23 04:17:16,834 INFO L168 Benchmark]: TraceAbstraction took 173.43 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. [2018-11-23 04:17:16,834 INFO L168 Benchmark]: Witness Printer took 3.25 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. [2018-11-23 04:17:16,837 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 171.38 ms. Allocated memory is still 1.0 GB. Free memory was 958.2 MB in the beginning and 947.4 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 13.86 ms. Allocated memory is still 1.0 GB. Free memory was 947.4 MB in the beginning and 944.8 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.04 ms. Allocated memory is still 1.0 GB. Free memory is still 944.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 170.91 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.8 MB in the beginning and 1.1 GB in the end (delta: -186.3 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 173.43 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 3.25 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 10, overapproximation of someBinaryArithmeticFLOAToperation at line 8, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L4] float f = 0x1.9e0c22p-101f; [L5] float g = -0x1.3c9014p-50f; [L6] float target = -0x1p-149f; [L8] float result = f * g; VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] COND TRUE !(result == target) VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] [L10] __VERIFIER_error() VAL [\old(argc)=2, argc=2, argv={1:0}, argv={1:0}, f=13567505/21267647932558653966460912964485513216] - 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, 7 NumberOfCodeBlocks, 7 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-aa41828 [2018-11-23 04:17:18,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 04:17:18,260 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 04:17:18,269 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 04:17:18,269 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 04:17:18,270 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 04:17:18,271 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 04:17:18,273 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 04:17:18,274 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 04:17:18,274 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 04:17:18,275 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 04:17:18,275 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 04:17:18,276 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 04:17:18,277 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 04:17:18,278 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 04:17:18,278 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 04:17:18,279 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 04:17:18,280 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 04:17:18,282 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 04:17:18,283 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 04:17:18,283 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 04:17:18,284 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 04:17:18,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 04:17:18,286 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 04:17:18,287 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 04:17:18,287 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 04:17:18,288 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 04:17:18,289 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 04:17:18,289 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 04:17:18,290 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 04:17:18,290 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 04:17:18,291 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 04:17:18,291 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 04:17:18,291 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 04:17:18,292 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 04:17:18,292 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 04:17:18,293 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-23 04:17:18,304 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 04:17:18,304 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 04:17:18,305 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 04:17:18,305 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 04:17:18,305 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-23 04:17:18,305 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-23 04:17:18,306 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-23 04:17:18,306 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-23 04:17:18,306 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-23 04:17:18,306 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-23 04:17:18,307 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 04:17:18,307 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 04:17:18,307 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 04:17:18,307 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 04:17:18,307 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 04:17:18,307 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 04:17:18,308 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 04:17:18,309 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 04:17:18,309 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 04:17:18,309 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 04:17:18,309 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 04:17:18,309 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 04:17:18,309 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-23 04:17:18,310 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-23 04:17:18,310 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_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan 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 -> Taipan 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 -> cdec0b8c4f67592438879c69401fb208f793f01e [2018-11-23 04:17:18,342 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 04:17:18,350 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 04:17:18,353 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 04:17:18,354 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 04:17:18,354 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 04:17:18,354 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:18,392 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/cba2ce118/c6cc75a4bf8e446082c1d1c51e07cc98/FLAG1bad913a9 [2018-11-23 04:17:18,788 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 04:17:18,788 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/sv-benchmarks/c/floats-cbmc-regression/float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:18,791 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/cba2ce118/c6cc75a4bf8e446082c1d1c51e07cc98/FLAG1bad913a9 [2018-11-23 04:17:18,800 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/data/cba2ce118/c6cc75a4bf8e446082c1d1c51e07cc98 [2018-11-23 04:17:18,802 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 04:17:18,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 04:17:18,803 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 04:17:18,803 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 04:17:18,806 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 04:17:18,806 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:18,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac99b30 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18, skipping insertion in model container [2018-11-23 04:17:18,808 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:18,814 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 04:17:18,826 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 04:17:18,955 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:17:18,961 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 04:17:18,974 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 04:17:18,986 INFO L195 MainTranslator]: Completed translation [2018-11-23 04:17:18,986 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18 WrapperNode [2018-11-23 04:17:18,986 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 04:17:18,987 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 04:17:18,987 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 04:17:18,987 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 04:17:18,994 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,000 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,005 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 04:17:19,006 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 04:17:19,006 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 04:17:19,006 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 04:17:19,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,015 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,015 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,020 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,022 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... [2018-11-23 04:17:19,023 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 04:17:19,023 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 04:17:19,023 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 04:17:19,024 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 04:17:19,024 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/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 [2018-11-23 04:17:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 04:17:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 04:17:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 04:17:19,108 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 04:17:19,108 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 04:17:19,109 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 04:17:19,202 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 04:17:19,202 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 04:17:19,203 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:19 BoogieIcfgContainer [2018-11-23 04:17:19,203 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 04:17:19,204 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 04:17:19,204 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 04:17:19,206 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 04:17:19,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 04:17:18" (1/3) ... [2018-11-23 04:17:19,206 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bdf7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:19, skipping insertion in model container [2018-11-23 04:17:19,206 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 04:17:18" (2/3) ... [2018-11-23 04:17:19,207 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39bdf7e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 04:17:19, skipping insertion in model container [2018-11-23 04:17:19,207 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:19" (3/3) ... [2018-11-23 04:17:19,208 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp7_true-unreach-call_true-termination.i [2018-11-23 04:17:19,214 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 04:17:19,219 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 04:17:19,228 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 04:17:19,247 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 04:17:19,248 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 04:17:19,248 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 04:17:19,248 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 04:17:19,248 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 04:17:19,248 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 04:17:19,248 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 04:17:19,248 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 04:17:19,249 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 04:17:19,263 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-23 04:17:19,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-23 04:17:19,268 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 04:17:19,269 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-23 04:17:19,270 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 04:17:19,273 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 04:17:19,274 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-23 04:17:19,276 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-23 04:17:19,277 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/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 [2018-11-23 04:17:19,281 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 04:17:19,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 04:17:19,358 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 04:17:19,400 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 04:17:19,400 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-23 04:17:19,414 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 04:17:19,414 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-23 04:17:19,418 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-23 04:17:19,430 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-23 04:17:19,430 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:17:19,432 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-11-23 04:17:19,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 04:17:19,462 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-23 04:17:19,462 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-23 04:17:19,463 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-23 04:17:19,463 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 04:17:19,468 INFO L225 Difference]: With dead ends: 18 [2018-11-23 04:17:19,468 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 04:17:19,470 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-23 04:17:19,480 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 04:17:19,484 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 04:17:19,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 04:17:19,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 04:17:19,487 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-23 04:17:19,487 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 04:17:19,487 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 04:17:19,487 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-23 04:17:19,487 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 04:17:19,488 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 04:17:19,492 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 04:17:19,523 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 04:17:19,523 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:17:19,523 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 04:17:19,523 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 04:17:19,523 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 04:17:19,523 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 04:17:19,523 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-23 04:17:19,524 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 13) the Hoare annotation is: true [2018-11-23 04:17:19,524 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 3 13) no Hoare annotation was computed. [2018-11-23 04:17:19,524 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-23 04:17:19,524 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-23 04:17:19,524 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 13) no Hoare annotation was computed. [2018-11-23 04:17:19,524 INFO L448 ceAbstractionStarter]: For program point L10-3(line 10) no Hoare annotation was computed. [2018-11-23 04:17:19,526 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 04:17:19 BoogieIcfgContainer [2018-11-23 04:17:19,526 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 04:17:19,526 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 04:17:19,526 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 04:17:19,526 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 04:17:19,527 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 04:17:19" (3/4) ... [2018-11-23 04:17:19,529 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 04:17:19,534 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 04:17:19,534 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 04:17:19,536 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-23 04:17:19,537 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 04:17:19,537 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 04:17:19,559 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71dccce1-6793-44bc-9d61-17cd48be4653/bin-2019/utaipan/witness.graphml [2018-11-23 04:17:19,559 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 04:17:19,560 INFO L168 Benchmark]: Toolchain (without parser) took 757.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -159.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:17:19,561 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. [2018-11-23 04:17:19,561 INFO L168 Benchmark]: CACSL2BoogieTranslator took 183.48 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. [2018-11-23 04:17:19,562 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.36 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. [2018-11-23 04:17:19,562 INFO L168 Benchmark]: Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 04:17:19,563 INFO L168 Benchmark]: RCFGBuilder took 179.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-11-23 04:17:19,563 INFO L168 Benchmark]: TraceAbstraction took 322.18 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. [2018-11-23 04:17:19,564 INFO L168 Benchmark]: Witness Printer took 33.11 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2018-11-23 04:17:19,566 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 183.48 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 Procedure Inliner took 18.36 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. * Boogie Preprocessor took 17.53 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 179.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.2 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -208.1 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 322.18 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: 25.8 MB). Peak memory consumption was 25.8 MB. Max. memory is 11.5 GB. * Witness Printer took 33.11 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: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 10]: 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, 0.2s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 138 SizeOfPredicates, 4 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 5 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...