./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/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 e03384737e8763104139cfd338bec2bd1e3e90b2 .............................................................................................................................................................................................................................................. 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_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/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 e03384737e8763104139cfd338bec2bd1e3e90b2 ................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 11:08:11,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:08:11,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:08:11,729 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:08:11,729 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:08:11,730 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:08:11,731 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:08:11,732 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:08:11,734 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:08:11,734 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:08:11,735 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:08:11,735 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:08:11,736 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:08:11,736 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:08:11,737 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:08:11,738 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:08:11,738 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:08:11,740 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:08:11,742 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:08:11,743 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:08:11,744 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:08:11,745 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:08:11,746 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:08:11,747 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:08:11,747 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:08:11,747 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:08:11,749 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:08:11,749 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:08:11,750 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:08:11,751 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:08:11,751 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:08:11,751 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:08:11,751 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:08:11,752 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:08:11,753 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:08:11,754 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:08:11,754 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 11:08:11,764 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:08:11,765 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:08:11,765 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:08:11,765 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:08:11,766 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:08:11,766 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 11:08:11,767 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 11:08:11,767 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:08:11,767 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:08:11,767 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:08:11,768 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 11:08:11,768 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:08:11,768 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:08:11,769 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:08:11,769 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:08:11,769 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:08:11,769 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:08:11,770 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:08:11,770 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:08:11,771 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:08:11,771 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:08:11,771 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:08:11,771 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:08:11,771 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 11:08:11,771 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:08:11,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 11:08:11,772 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 11:08:11,772 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_3c86f9ff-e8ef-407a-894f-b048ea037057/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2018-11-18 11:08:11,799 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:08:11,808 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:08:11,811 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:08:11,812 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:08:11,812 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:08:11,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-18 11:08:11,854 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/7513f2aa1/a10efbfa4adb4578bc4fd1743797580b/FLAG72b1839ad [2018-11-18 11:08:12,257 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:08:12,258 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-18 11:08:12,262 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/7513f2aa1/a10efbfa4adb4578bc4fd1743797580b/FLAG72b1839ad [2018-11-18 11:08:12,274 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/7513f2aa1/a10efbfa4adb4578bc4fd1743797580b [2018-11-18 11:08:12,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:08:12,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:08:12,278 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:08:12,278 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:08:12,280 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:08:12,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,282 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26b3c086 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12, skipping insertion in model container [2018-11-18 11:08:12,282 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,288 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:08:12,301 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:08:12,410 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:08:12,412 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:08:12,421 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:08:12,430 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:08:12,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12 WrapperNode [2018-11-18 11:08:12,431 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:08:12,431 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:08:12,431 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:08:12,431 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:08:12,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,440 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,444 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:08:12,444 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:08:12,444 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:08:12,444 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:08:12,450 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,450 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,451 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,451 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,454 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,455 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... [2018-11-18 11:08:12,457 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:08:12,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:08:12,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:08:12,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:08:12,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/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 [2018-11-18 11:08:12,535 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:08:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:08:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:08:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:08:12,536 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:08:12,536 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:08:12,614 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:08:12,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:12 BoogieIcfgContainer [2018-11-18 11:08:12,615 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:08:12,616 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:08:12,616 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:08:12,618 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:08:12,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:08:12" (1/3) ... [2018-11-18 11:08:12,618 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a54387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:08:12, skipping insertion in model container [2018-11-18 11:08:12,618 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:12" (2/3) ... [2018-11-18 11:08:12,619 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@18a54387 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:08:12, skipping insertion in model container [2018-11-18 11:08:12,619 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:12" (3/3) ... [2018-11-18 11:08:12,620 INFO L112 eAbstractionObserver]: Analyzing ICFG float5_true-unreach-call_true-termination.i [2018-11-18 11:08:12,626 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:08:12,632 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:08:12,641 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:08:12,662 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:08:12,662 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:08:12,662 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:08:12,662 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:08:12,662 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:08:12,662 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:08:12,662 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:08:12,663 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:08:12,674 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 11:08:12,678 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:08:12,678 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:08:12,679 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:08:12,680 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:08:12,683 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:08:12,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 11:08:12,685 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 11:08:12,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:08:12,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:08:12,722 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 11:08:12,722 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 11:08:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:08:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 11:08:12,755 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 11:08:12,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:08:12 BoogieIcfgContainer [2018-11-18 11:08:12,769 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:08:12,770 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:08:12,770 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:08:12,770 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:08:12,770 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:12" (3/4) ... [2018-11-18 11:08:12,773 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 11:08:12,773 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:08:12,774 INFO L168 Benchmark]: Toolchain (without parser) took 496.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 958.1 MB in the beginning and 1.1 GB in the end (delta: -179.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:12,775 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:12,775 INFO L168 Benchmark]: CACSL2BoogieTranslator took 153.22 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:12,776 INFO L168 Benchmark]: Boogie Procedure Inliner took 13.03 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:12,776 INFO L168 Benchmark]: Boogie Preprocessor took 12.62 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:12,777 INFO L168 Benchmark]: RCFGBuilder took 158.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -206.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:12,777 INFO L168 Benchmark]: TraceAbstraction took 153.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:12,778 INFO L168 Benchmark]: Witness Printer took 3.60 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:12,780 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 153.22 ms. Allocated memory is still 1.0 GB. Free memory was 958.1 MB in the beginning and 947.3 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 13.03 ms. Allocated memory is still 1.0 GB. Free memory is still 947.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.62 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 944.6 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 158.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 944.6 MB in the beginning and 1.2 GB in the end (delta: -206.2 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 153.64 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 9.7 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. * Witness Printer took 3.60 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 10. Possible FailurePath: [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L9] b=a [L10] a/=2 [L11] a*=2 VAL [b=0] [L12] COND TRUE !(a==b) VAL [b=0] [L12] __VERIFIER_error() VAL [b=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 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=12occurred 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 0.1.23-5842f4b [2018-11-18 11:08:14,231 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 11:08:14,232 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 11:08:14,241 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 11:08:14,241 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 11:08:14,242 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 11:08:14,243 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 11:08:14,244 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 11:08:14,245 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 11:08:14,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 11:08:14,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 11:08:14,246 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 11:08:14,247 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 11:08:14,248 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 11:08:14,249 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 11:08:14,249 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 11:08:14,250 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 11:08:14,251 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 11:08:14,253 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 11:08:14,254 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 11:08:14,255 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 11:08:14,255 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 11:08:14,257 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 11:08:14,258 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 11:08:14,258 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 11:08:14,258 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 11:08:14,259 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 11:08:14,260 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 11:08:14,261 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 11:08:14,261 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 11:08:14,262 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 11:08:14,262 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 11:08:14,262 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 11:08:14,262 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 11:08:14,263 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 11:08:14,264 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 11:08:14,264 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 11:08:14,275 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 11:08:14,275 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 11:08:14,276 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 11:08:14,276 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 11:08:14,276 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 11:08:14,277 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 11:08:14,277 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 11:08:14,277 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 11:08:14,277 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 11:08:14,277 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 11:08:14,278 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 11:08:14,279 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 11:08:14,279 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 11:08:14,279 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 11:08:14,280 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 11:08:14,280 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 11:08:14,280 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 11:08:14,282 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 11:08:14,282 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 11:08:14,282 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_3c86f9ff-e8ef-407a-894f-b048ea037057/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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2018-11-18 11:08:14,311 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 11:08:14,320 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 11:08:14,323 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 11:08:14,324 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 11:08:14,324 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 11:08:14,325 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/../../sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-18 11:08:14,370 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/9fbf9d656/fef4e66c6a1347628f79a96537ca35f6/FLAG5f30d9e26 [2018-11-18 11:08:14,673 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 11:08:14,674 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/sv-benchmarks/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-18 11:08:14,677 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/9fbf9d656/fef4e66c6a1347628f79a96537ca35f6/FLAG5f30d9e26 [2018-11-18 11:08:14,686 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/data/9fbf9d656/fef4e66c6a1347628f79a96537ca35f6 [2018-11-18 11:08:14,688 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 11:08:14,689 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 11:08:14,690 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 11:08:14,690 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 11:08:14,693 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 11:08:14,694 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,696 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5fb8efdd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14, skipping insertion in model container [2018-11-18 11:08:14,696 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,703 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 11:08:14,717 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 11:08:14,852 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:08:14,856 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 11:08:14,869 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 11:08:14,881 INFO L195 MainTranslator]: Completed translation [2018-11-18 11:08:14,881 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14 WrapperNode [2018-11-18 11:08:14,881 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 11:08:14,882 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 11:08:14,882 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 11:08:14,882 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 11:08:14,889 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,894 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,899 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 11:08:14,899 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 11:08:14,899 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 11:08:14,899 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 11:08:14,904 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,906 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,906 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,911 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,913 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,914 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... [2018-11-18 11:08:14,915 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 11:08:14,916 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 11:08:14,916 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 11:08:14,916 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 11:08:14,917 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/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 [2018-11-18 11:08:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 11:08:14,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 11:08:14,994 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 11:08:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 11:08:14,995 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 11:08:14,995 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 11:08:15,721 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 11:08:15,722 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:15 BoogieIcfgContainer [2018-11-18 11:08:15,722 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 11:08:15,723 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 11:08:15,723 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 11:08:15,724 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 11:08:15,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 11:08:14" (1/3) ... [2018-11-18 11:08:15,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:08:15, skipping insertion in model container [2018-11-18 11:08:15,725 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 11:08:14" (2/3) ... [2018-11-18 11:08:15,725 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@41d0262a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 11:08:15, skipping insertion in model container [2018-11-18 11:08:15,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:15" (3/3) ... [2018-11-18 11:08:15,727 INFO L112 eAbstractionObserver]: Analyzing ICFG float5_true-unreach-call_true-termination.i [2018-11-18 11:08:15,733 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 11:08:15,738 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 11:08:15,748 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 11:08:15,766 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 11:08:15,766 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 11:08:15,766 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 11:08:15,766 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 11:08:15,766 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 11:08:15,767 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 11:08:15,767 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 11:08:15,767 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 11:08:15,767 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 11:08:15,779 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-18 11:08:15,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-18 11:08:15,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 11:08:15,783 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-18 11:08:15,784 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 11:08:15,788 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 11:08:15,788 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-18 11:08:15,791 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 11:08:15,791 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/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 [2018-11-18 11:08:15,795 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 11:08:15,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 11:08:15,853 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 11:08:25,502 WARN L180 SmtUtils]: Spent 8.25 s on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2018-11-18 11:08:26,683 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 11:08:26,683 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 11:08:26,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 11:08:26,692 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 11:08:26,694 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 11:08:26,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 11:08:26,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:08:26,704 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-18 11:08:27,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 11:08:27,307 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-18 11:08:27,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 11:08:27,321 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-18 11:08:27,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 11:08:27,326 INFO L225 Difference]: With dead ends: 16 [2018-11-18 11:08:27,326 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 11:08:27,328 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 11:08:27,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 11:08:27,344 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 11:08:27,345 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 11:08:27,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 11:08:27,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-18 11:08:27,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 11:08:27,347 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 11:08:27,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 11:08:27,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 11:08:27,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 11:08:27,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 11:08:27,383 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 11:08:27,383 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:08:27,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 11:08:27,384 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 11:08:27,384 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 11:08:27,384 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 11:08:27,384 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 4 13) the Hoare annotation is: true [2018-11-18 11:08:27,384 INFO L425 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-18 11:08:27,384 INFO L425 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-11-18 11:08:27,385 INFO L425 ceAbstractionStarter]: For program point L12-3(lines 4 13) no Hoare annotation was computed. [2018-11-18 11:08:27,385 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 4 13) no Hoare annotation was computed. [2018-11-18 11:08:27,385 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-18 11:08:27,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 11:08:27 BoogieIcfgContainer [2018-11-18 11:08:27,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 11:08:27,388 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 11:08:27,388 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 11:08:27,388 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 11:08:27,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 11:08:15" (3/4) ... [2018-11-18 11:08:27,392 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 11:08:27,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 11:08:27,398 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 11:08:27,401 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 11:08:27,401 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 11:08:27,401 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 11:08:27,426 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3c86f9ff-e8ef-407a-894f-b048ea037057/bin-2019/utaipan/witness.graphml [2018-11-18 11:08:27,426 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 11:08:27,427 INFO L168 Benchmark]: Toolchain (without parser) took 12738.54 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -132.8 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:27,427 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:27,428 INFO L168 Benchmark]: CACSL2BoogieTranslator took 191.95 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 939.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:27,428 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.70 ms. Allocated memory is still 1.0 GB. Free memory was 939.0 MB in the beginning and 933.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:27,428 INFO L168 Benchmark]: Boogie Preprocessor took 16.49 ms. Allocated memory is still 1.0 GB. Free memory is still 933.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:27,429 INFO L168 Benchmark]: RCFGBuilder took 806.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:27,429 INFO L168 Benchmark]: TraceAbstraction took 11664.97 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. [2018-11-18 11:08:27,430 INFO L168 Benchmark]: Witness Printer took 38.74 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 11:08:27,432 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 191.95 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 16.70 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 16.49 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 806.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 933.6 MB in the beginning and 1.1 GB in the end (delta: -188.3 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 11664.97 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: 39.4 MB). Peak memory consumption was 39.4 MB. Max. memory is 11.5 GB. * Witness Printer took 38.74 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: 12]: 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, 12 locations, 1 error locations. SAFE Result, 11.6s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 9.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred 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, 10.8s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 2 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...