./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 bc7b929d20445456da87d92c4566355380c50982 ......................................................................................................................................................................................................................................................................................................................................................... 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_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 bc7b929d20445456da87d92c4566355380c50982 ........................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:36:30,824 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:36:30,825 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:36:30,831 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:36:30,831 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:36:30,832 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:36:30,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:36:30,833 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:36:30,834 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:36:30,834 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:36:30,835 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:36:30,835 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:36:30,835 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:36:30,836 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:36:30,836 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:36:30,837 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:36:30,837 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:36:30,838 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:36:30,839 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:36:30,839 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:36:30,840 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:36:30,840 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:36:30,842 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:36:30,842 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:36:30,842 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:36:30,842 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:36:30,843 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:36:30,843 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:36:30,844 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:36:30,844 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:36:30,844 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:36:30,845 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:36:30,845 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:36:30,845 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:36:30,845 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:36:30,846 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:36:30,846 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 19:36:30,853 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:36:30,853 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:36:30,854 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:36:30,854 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 19:36:30,854 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:36:30,855 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:36:30,855 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:36:30,856 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:36:30,856 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:36:30,856 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 19:36:30,857 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 19:36:30,857 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_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 -> bc7b929d20445456da87d92c4566355380c50982 [2018-12-09 19:36:30,874 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:36:30,883 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:36:30,886 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:36:30,887 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:36:30,887 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:36:30,888 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:30,929 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/5e748fdb1/e81b5d1f2908449681a46fc4854a180d/FLAG884565b3d [2018-12-09 19:36:31,397 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:36:31,397 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:31,401 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/5e748fdb1/e81b5d1f2908449681a46fc4854a180d/FLAG884565b3d [2018-12-09 19:36:31,409 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/5e748fdb1/e81b5d1f2908449681a46fc4854a180d [2018-12-09 19:36:31,411 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:36:31,412 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:36:31,413 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:31,413 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:36:31,415 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:36:31,415 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,417 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b1a052f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31, skipping insertion in model container [2018-12-09 19:36:31,417 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,422 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:36:31,437 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:36:31,550 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:31,555 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:36:31,577 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:31,625 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:36:31,625 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31 WrapperNode [2018-12-09 19:36:31,625 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:31,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:31,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:36:31,626 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:36:31,633 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,641 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,647 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:31,647 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:36:31,647 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:36:31,647 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:36:31,654 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,655 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,657 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,658 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,669 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,673 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... [2018-12-09 19:36:31,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:36:31,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:36:31,678 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:36:31,678 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:36:31,678 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 [2018-12-09 19:36:31,710 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:36:31,710 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 19:36:31,711 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:36:31,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 19:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-12-09 19:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 19:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 19:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 19:36:31,712 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 19:36:31,712 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:36:31,909 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:36:31,909 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 19:36:31,909 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:31 BoogieIcfgContainer [2018-12-09 19:36:31,909 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:36:31,910 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:36:31,910 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:36:31,912 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:36:31,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:36:31" (1/3) ... [2018-12-09 19:36:31,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4a8f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:31, skipping insertion in model container [2018-12-09 19:36:31,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:31" (2/3) ... [2018-12-09 19:36:31,912 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2a4a8f9a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:31, skipping insertion in model container [2018-12-09 19:36:31,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:31" (3/3) ... [2018-12-09 19:36:31,914 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:31,919 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:36:31,924 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:36:31,933 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:36:31,952 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:36:31,952 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:36:31,952 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:36:31,952 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:36:31,952 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:36:31,952 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:36:31,952 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:36:31,952 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:36:31,962 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-09 19:36:31,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 19:36:31,966 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:31,967 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:31,968 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:36:31,971 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:31,971 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-09 19:36:31,973 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:32,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:32,001 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:32,001 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:32,001 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:32,063 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:32,064 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:32,065 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:36:32,065 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 19:36:32,067 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:36:32,075 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:36:32,075 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:36:32,076 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-09 19:36:32,090 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:32,090 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-09 19:36:32,090 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:36:32,091 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 19:36:32,091 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:32,096 INFO L225 Difference]: With dead ends: 100 [2018-12-09 19:36:32,096 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 19:36:32,098 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:36:32,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 19:36:32,118 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 19:36:32,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 19:36:32,120 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-09 19:36:32,121 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-09 19:36:32,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:32,121 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-09 19:36:32,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:36:32,121 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-09 19:36:32,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:36:32,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:32,122 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:32,122 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:36:32,122 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:32,122 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-09 19:36:32,122 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 19:36:32,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:32,123 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:32,123 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 19:36:32,123 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 19:36:32,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:36:32,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 19:36:32,175 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 19:36:32,190 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 19:36:32,191 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 19:36:32,191 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 19:36:32,191 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 19:36:32,191 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# [2018-12-09 19:36:32,191 WARN L1298 BoogieBacktranslator]: Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# [2018-12-09 19:36:32,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:36:32 BoogieIcfgContainer [2018-12-09 19:36:32,198 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:36:32,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:36:32,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:36:32,199 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:36:32,199 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:31" (3/4) ... [2018-12-09 19:36:32,201 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 19:36:32,201 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:36:32,202 INFO L168 Benchmark]: Toolchain (without parser) took 790.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -103.4 MB). Peak memory consumption was 30.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:32,203 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:36:32,203 INFO L168 Benchmark]: CACSL2BoogieTranslator took 212.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:32,203 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:36:32,203 INFO L168 Benchmark]: Boogie Preprocessor took 30.14 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. [2018-12-09 19:36:32,204 INFO L168 Benchmark]: RCFGBuilder took 231.87 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:32,204 INFO L168 Benchmark]: TraceAbstraction took 288.79 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. [2018-12-09 19:36:32,204 INFO L168 Benchmark]: Witness Printer took 2.65 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. [2018-12-09 19:36:32,206 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 973.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 212.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 953.5 MB in the beginning and 1.1 GB in the end (delta: -172.4 MB). Peak memory consumption was 29.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.87 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.14 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. * RCFGBuilder took 231.87 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: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 288.79 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: 37.3 MB). Peak memory consumption was 37.3 MB. Max. memory is 11.5 GB. * Witness Printer took 2.65 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.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450962 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450956 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450964 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450965 could not be translated for associated CType ARRAY#_11_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450952 could not be translated for associated CType ARRAY#_4_~FLOAT# - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: IntegerLiteral 6442450960 could not be translated for associated CType ARRAY#_11_~FLOAT# * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 142]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 141, overapproximation of someUnaryDOUBLEoperation at line 44, overapproximation of bitwiseAnd at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 65. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L29-L34] static const float atanhi_atan[] = { 4.6364760399e-01, 7.8539812565e-01, 9.8279368877e-01, 1.5707962513e+00, }; [L36-L41] static const float atanlo_atan[] = { 5.0121582440e-09, 3.7748947079e-08, 3.4473217170e-08, 7.5497894159e-08, }; [L43-L47] static const float aT_atan[] = { 3.3333334327e-01, -2.0000000298e-01, 1.4285714924e-01, -1.1111110449e-01, 9.0908870101e-02, -7.6918758452e-02, 6.6610731184e-02, -5.8335702866e-02, 4.9768779427e-02, -3.6531571299e-02, 1.6285819933e-02, }; [L49-L51] static const float one_atan = 1.0, huge_atan = 1.0e30, pi_o_4 = 7.8539818525e-01, pi_o_2 = 1.5707963705e+00, pi = 3.1415927410e+00; VAL [\old(aT_atan)=null, \old(aT_atan)=null, \old(atanhi_atan)=null, \old(atanhi_atan)=null, \old(atanlo_atan)=null, \old(atanlo_atan)=null, \old(huge_atan)=6442450959, \old(huge_floor)=6442450953, \old(one_atan)=6442450945, \old(pi)=6442450954, \old(pi_o_2)=6442450946, \old(pi_o_4)=6442450950, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L137] float x = 0.0f; VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L138] CALL, EXPR atan_float(x) VAL [\old(x)=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000] [L54] float w, s1, s2, z; [L55] __int32_t ix, hx, id; VAL [\old(x)=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L58] ieee_float_shape_type gf_u; [L59] gf_u.value = (x) [L60] EXPR gf_u.word [L60] (hx) = gf_u.word [L62] ix = hx & 0x7fffffff VAL [\old(x)=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L63] COND TRUE ix >= 0x50800000 VAL [\old(x)=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L64] COND TRUE ((ix) > 0x7f800000L) [L65] return x + x; VAL [\old(x)=0, aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=2139095041, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L138] RET, EXPR atan_float(x) VAL [aT_atan={6442450961:0}, atan_float(x)=6442450957, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, x=0] [L138] float res = atan_float(x); [L141] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450957, res == 0.0f && __signbit_float(res) == 0=0, x=0] [L141] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L142] __VERIFIER_error() VAL [aT_atan={6442450961:0}, atanhi_atan={6442450963:0}, atanlo_atan={6442450947:0}, huge_atan=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_atan=1, pi=3141592741/1000000000, pi_o_2=3141592741/2000000000, pi_o_4=3141592741/4000000000, res=6442450957, x=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 65 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 37 NumberOfCodeBlocks, 37 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 17 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.23-635dfa2 [2018-12-09 19:36:33,591 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 19:36:33,592 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 19:36:33,598 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 19:36:33,598 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 19:36:33,599 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 19:36:33,599 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 19:36:33,600 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 19:36:33,601 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 19:36:33,601 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 19:36:33,602 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 19:36:33,602 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 19:36:33,603 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 19:36:33,603 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 19:36:33,604 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 19:36:33,604 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 19:36:33,604 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 19:36:33,605 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 19:36:33,606 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 19:36:33,607 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 19:36:33,608 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 19:36:33,608 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 19:36:33,609 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 19:36:33,609 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 19:36:33,610 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 19:36:33,610 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 19:36:33,611 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 19:36:33,611 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 19:36:33,611 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 19:36:33,612 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 19:36:33,612 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 19:36:33,612 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 19:36:33,613 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 19:36:33,613 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 19:36:33,613 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 19:36:33,614 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 19:36:33,614 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 19:36:33,621 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 19:36:33,621 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 19:36:33,622 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 19:36:33,622 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 19:36:33,622 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 19:36:33,623 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 19:36:33,623 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 19:36:33,624 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 19:36:33,624 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 19:36:33,625 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 19:36:33,625 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 19:36:33,625 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_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 -> bc7b929d20445456da87d92c4566355380c50982 [2018-12-09 19:36:33,643 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 19:36:33,653 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 19:36:33,655 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 19:36:33,657 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 19:36:33,657 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 19:36:33,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:33,694 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/86a58303e/c0f9fa23a07345ad8820586c7bc2f57e/FLAG9f0fbc449 [2018-12-09 19:36:34,106 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 19:36:34,106 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/sv-benchmarks/c/float-newlib/float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:34,111 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/86a58303e/c0f9fa23a07345ad8820586c7bc2f57e/FLAG9f0fbc449 [2018-12-09 19:36:34,119 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/data/86a58303e/c0f9fa23a07345ad8820586c7bc2f57e [2018-12-09 19:36:34,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 19:36:34,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 19:36:34,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:34,122 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 19:36:34,124 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 19:36:34,125 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,126 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4dc28ced and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34, skipping insertion in model container [2018-12-09 19:36:34,127 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,131 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 19:36:34,142 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 19:36:34,252 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:34,258 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 19:36:34,286 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 19:36:34,303 INFO L195 MainTranslator]: Completed translation [2018-12-09 19:36:34,304 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34 WrapperNode [2018-12-09 19:36:34,304 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 19:36:34,304 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:34,304 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 19:36:34,304 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 19:36:34,309 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,317 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,350 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 19:36:34,350 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 19:36:34,351 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 19:36:34,351 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 19:36:34,357 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,357 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,360 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,360 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,370 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,374 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,376 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... [2018-12-09 19:36:34,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 19:36:34,379 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 19:36:34,379 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 19:36:34,379 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 19:36:34,380 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 [2018-12-09 19:36:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-12-09 19:36:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 19:36:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 19:36:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 19:36:34,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 19:36:34,413 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-09 19:36:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 19:36:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-12-09 19:36:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-12-09 19:36:34,414 INFO L130 BoogieDeclarations]: Found specification of procedure atan_float [2018-12-09 19:36:34,414 INFO L138 BoogieDeclarations]: Found implementation of procedure atan_float [2018-12-09 19:36:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 19:36:34,415 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 19:36:34,559 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:36:34,585 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:36:34,600 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:36:35,711 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 19:36:42,877 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 19:36:42,878 INFO L280 CfgBuilder]: Removed 8 assue(true) statements. [2018-12-09 19:36:42,878 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:42 BoogieIcfgContainer [2018-12-09 19:36:42,878 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 19:36:42,878 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 19:36:42,879 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 19:36:42,881 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 19:36:42,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:36:34" (1/3) ... [2018-12-09 19:36:42,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e415e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:42, skipping insertion in model container [2018-12-09 19:36:42,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:36:34" (2/3) ... [2018-12-09 19:36:42,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@53e415e4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:36:42, skipping insertion in model container [2018-12-09 19:36:42,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:42" (3/3) ... [2018-12-09 19:36:42,883 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0620a_true-unreach-call.c [2018-12-09 19:36:42,889 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 19:36:42,894 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 19:36:42,904 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 19:36:42,921 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 19:36:42,921 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 19:36:42,921 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 19:36:42,921 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 19:36:42,922 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 19:36:42,922 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 19:36:42,922 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 19:36:42,922 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 19:36:42,922 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 19:36:42,931 INFO L276 IsEmpty]: Start isEmpty. Operand 54 states. [2018-12-09 19:36:42,935 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-09 19:36:42,935 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:42,935 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:42,937 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:36:42,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:42,940 INFO L82 PathProgramCache]: Analyzing trace with hash -1775699146, now seen corresponding path program 1 times [2018-12-09 19:36:42,943 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:36:42,943 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/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 [2018-12-09 19:36:42,947 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:43,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:43,052 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:36:43,062 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:43,062 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:36:43,072 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:43,073 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 19:36:43,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 19:36:43,082 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 19:36:43,082 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:36:43,084 INFO L87 Difference]: Start difference. First operand 54 states. Second operand 2 states. [2018-12-09 19:36:43,098 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:43,098 INFO L93 Difference]: Finished difference Result 100 states and 142 transitions. [2018-12-09 19:36:43,098 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 19:36:43,099 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-12-09 19:36:43,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:43,104 INFO L225 Difference]: With dead ends: 100 [2018-12-09 19:36:43,104 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 19:36:43,106 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 19:36:43,116 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 19:36:43,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 19:36:43,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 19:36:43,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 61 transitions. [2018-12-09 19:36:43,129 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 61 transitions. Word has length 18 [2018-12-09 19:36:43,129 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:43,129 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 61 transitions. [2018-12-09 19:36:43,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 19:36:43,130 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 61 transitions. [2018-12-09 19:36:43,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-09 19:36:43,130 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:43,130 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:43,130 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:36:43,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:43,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1046652015, now seen corresponding path program 1 times [2018-12-09 19:36:43,131 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:36:43,131 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-12-09 19:36:43,134 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:43,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:43,235 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:36:43,324 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:43,324 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:36:43,333 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:43,333 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:36:43,334 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:36:43,334 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:36:43,334 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:36:43,334 INFO L87 Difference]: Start difference. First operand 50 states and 61 transitions. Second operand 7 states. [2018-12-09 19:36:54,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:36:54,603 INFO L93 Difference]: Finished difference Result 68 states and 79 transitions. [2018-12-09 19:36:54,650 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:36:54,650 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-09 19:36:54,651 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:36:54,653 INFO L225 Difference]: With dead ends: 68 [2018-12-09 19:36:54,653 INFO L226 Difference]: Without dead ends: 51 [2018-12-09 19:36:54,654 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:36:54,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2018-12-09 19:36:54,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 48. [2018-12-09 19:36:54,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2018-12-09 19:36:54,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 56 transitions. [2018-12-09 19:36:54,661 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 56 transitions. Word has length 19 [2018-12-09 19:36:54,661 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:36:54,661 INFO L480 AbstractCegarLoop]: Abstraction has 48 states and 56 transitions. [2018-12-09 19:36:54,661 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:36:54,661 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 56 transitions. [2018-12-09 19:36:54,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 19:36:54,662 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:36:54,662 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:36:54,662 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:36:54,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:36:54,663 INFO L82 PathProgramCache]: Analyzing trace with hash 1727555058, now seen corresponding path program 1 times [2018-12-09 19:36:54,663 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:36:54,663 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2018-12-09 19:36:54,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:36:54,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:36:54,768 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:36:54,810 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:36:54,810 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:36:54,819 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:36:54,819 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:36:54,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:36:54,819 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:36:54,819 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:36:54,820 INFO L87 Difference]: Start difference. First operand 48 states and 56 transitions. Second operand 7 states. [2018-12-09 19:37:01,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:37:01,205 INFO L93 Difference]: Finished difference Result 56 states and 64 transitions. [2018-12-09 19:37:01,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:37:01,205 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-09 19:37:01,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:37:01,206 INFO L225 Difference]: With dead ends: 56 [2018-12-09 19:37:01,206 INFO L226 Difference]: Without dead ends: 53 [2018-12-09 19:37:01,207 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2018-12-09 19:37:01,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 53 states. [2018-12-09 19:37:01,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 53 to 52. [2018-12-09 19:37:01,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2018-12-09 19:37:01,211 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 60 transitions. [2018-12-09 19:37:01,211 INFO L78 Accepts]: Start accepts. Automaton has 52 states and 60 transitions. Word has length 21 [2018-12-09 19:37:01,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:37:01,212 INFO L480 AbstractCegarLoop]: Abstraction has 52 states and 60 transitions. [2018-12-09 19:37:01,212 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:37:01,212 INFO L276 IsEmpty]: Start isEmpty. Operand 52 states and 60 transitions. [2018-12-09 19:37:01,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 19:37:01,212 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:37:01,212 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:37:01,213 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:37:01,213 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:37:01,213 INFO L82 PathProgramCache]: Analyzing trace with hash -225183980, now seen corresponding path program 1 times [2018-12-09 19:37:01,213 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:37:01,213 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-12-09 19:37:01,216 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:37:02,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:37:02,149 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:37:02,214 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:37:02,214 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:37:02,231 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:37:02,232 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:37:02,232 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:37:02,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:37:02,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:37:02,232 INFO L87 Difference]: Start difference. First operand 52 states and 60 transitions. Second operand 7 states. [2018-12-09 19:37:11,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:37:11,578 INFO L93 Difference]: Finished difference Result 74 states and 84 transitions. [2018-12-09 19:37:11,626 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-09 19:37:11,626 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-09 19:37:11,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:37:11,627 INFO L225 Difference]: With dead ends: 74 [2018-12-09 19:37:11,627 INFO L226 Difference]: Without dead ends: 52 [2018-12-09 19:37:11,627 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:37:11,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states. [2018-12-09 19:37:11,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 51. [2018-12-09 19:37:11,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51 states. [2018-12-09 19:37:11,632 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2018-12-09 19:37:11,632 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 23 [2018-12-09 19:37:11,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:37:11,632 INFO L480 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2018-12-09 19:37:11,632 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:37:11,632 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2018-12-09 19:37:11,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 19:37:11,633 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:37:11,633 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:37:11,633 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:37:11,633 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:37:11,633 INFO L82 PathProgramCache]: Analyzing trace with hash 1139373451, now seen corresponding path program 1 times [2018-12-09 19:37:11,634 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:37:11,634 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-12-09 19:37:11,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:37:12,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:37:12,607 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:37:13,227 WARN L180 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-12-09 19:37:13,233 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:37:13,233 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:37:13,251 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:37:13,252 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 19:37:13,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 19:37:13,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 19:37:13,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-12-09 19:37:13,252 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand 6 states. [2018-12-09 19:37:14,412 WARN L180 SmtUtils]: Spent 386.00 ms on a formula simplification that was a NOOP. DAG size: 18 [2018-12-09 19:37:20,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:37:20,606 INFO L93 Difference]: Finished difference Result 70 states and 76 transitions. [2018-12-09 19:37:20,610 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 19:37:20,610 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2018-12-09 19:37:20,611 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:37:20,611 INFO L225 Difference]: With dead ends: 70 [2018-12-09 19:37:20,611 INFO L226 Difference]: Without dead ends: 50 [2018-12-09 19:37:20,611 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:37:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2018-12-09 19:37:20,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 50. [2018-12-09 19:37:20,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50 states. [2018-12-09 19:37:20,618 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50 states to 50 states and 53 transitions. [2018-12-09 19:37:20,618 INFO L78 Accepts]: Start accepts. Automaton has 50 states and 53 transitions. Word has length 24 [2018-12-09 19:37:20,618 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:37:20,618 INFO L480 AbstractCegarLoop]: Abstraction has 50 states and 53 transitions. [2018-12-09 19:37:20,618 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 19:37:20,618 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 53 transitions. [2018-12-09 19:37:20,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-12-09 19:37:20,619 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:37:20,619 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:37:20,619 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:37:20,620 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:37:20,620 INFO L82 PathProgramCache]: Analyzing trace with hash -267271278, now seen corresponding path program 1 times [2018-12-09 19:37:20,620 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:37:20,620 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2018-12-09 19:37:20,623 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:37:20,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:37:20,732 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:37:20,882 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:37:20,882 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:37:20,891 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:37:20,891 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2018-12-09 19:37:20,891 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2018-12-09 19:37:20,891 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2018-12-09 19:37:20,891 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=111, Unknown=0, NotChecked=0, Total=132 [2018-12-09 19:37:20,892 INFO L87 Difference]: Start difference. First operand 50 states and 53 transitions. Second operand 12 states. [2018-12-09 19:37:28,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:37:28,294 INFO L93 Difference]: Finished difference Result 55 states and 58 transitions. [2018-12-09 19:37:28,294 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 19:37:28,295 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 29 [2018-12-09 19:37:28,295 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:37:28,295 INFO L225 Difference]: With dead ends: 55 [2018-12-09 19:37:28,295 INFO L226 Difference]: Without dead ends: 44 [2018-12-09 19:37:28,296 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=57, Invalid=285, Unknown=0, NotChecked=0, Total=342 [2018-12-09 19:37:28,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-12-09 19:37:28,303 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-12-09 19:37:28,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-12-09 19:37:28,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 46 transitions. [2018-12-09 19:37:28,304 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 46 transitions. Word has length 29 [2018-12-09 19:37:28,304 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:37:28,304 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 46 transitions. [2018-12-09 19:37:28,304 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2018-12-09 19:37:28,304 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 46 transitions. [2018-12-09 19:37:28,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-12-09 19:37:28,305 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 19:37:28,305 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 19:37:28,305 INFO L423 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 19:37:28,306 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 19:37:28,306 INFO L82 PathProgramCache]: Analyzing trace with hash 1116416613, now seen corresponding path program 1 times [2018-12-09 19:37:28,306 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 19:37:28,306 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2018-12-09 19:37:28,309 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 19:37:29,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 19:37:29,470 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 19:37:29,534 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 19:37:29,534 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 19:37:29,553 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 19:37:29,554 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 19:37:29,554 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 19:37:29,554 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 19:37:29,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 19:37:29,554 INFO L87 Difference]: Start difference. First operand 44 states and 46 transitions. Second operand 7 states. [2018-12-09 19:37:34,700 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 19:37:34,700 INFO L93 Difference]: Finished difference Result 44 states and 46 transitions. [2018-12-09 19:37:34,701 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 19:37:34,701 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 33 [2018-12-09 19:37:34,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 19:37:34,701 INFO L225 Difference]: With dead ends: 44 [2018-12-09 19:37:34,701 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 19:37:34,702 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-12-09 19:37:34,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 19:37:34,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 19:37:34,702 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 19:37:34,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 19:37:34,702 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 33 [2018-12-09 19:37:34,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 19:37:34,702 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 19:37:34,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 19:37:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 19:37:34,702 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 19:37:34,705 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 19:37:34,843 WARN L180 SmtUtils]: Spent 100.00 ms on a formula simplification. DAG size of input: 40 DAG size of output: 35 [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 14 27) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 14 27) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 14 27) the Hoare annotation is: true [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 25) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point L21-1(lines 14 27) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point L21-2(lines 21 25) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L448 ceAbstractionStarter]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2018-12-09 19:37:34,965 INFO L451 ceAbstractionStarter]: At program point L16-2(lines 16 20) the Hoare annotation is: true [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L444 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0) (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) [2018-12-09 19:37:34,966 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 142) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 129 147) the Hoare annotation is: true [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 129 147) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L142(line 142) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L141(line 141) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 129 147) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L444 ceAbstractionStarter]: At program point L141-1(line 141) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (and (= (_ +zero 8 24) main_~x~0) (= (_ +zero 8 24) main_~res~0) |main_#t~short29|) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L141-2(line 141) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L444 ceAbstractionStarter]: At program point L138(line 138) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (= (_ +zero 8 24) main_~x~0)) [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L138-1(line 138) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L141-4(lines 141 144) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 117 127) no Hoare annotation was computed. [2018-12-09 19:37:34,966 INFO L448 ceAbstractionStarter]: For program point L120-1(lines 120 124) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L444 ceAbstractionStarter]: At program point L120-2(lines 120 124) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |__signbit_float_#in~x| __signbit_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L120-3(lines 120 124) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 117 127) the Hoare annotation is: true [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 117 127) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 65) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L451 ceAbstractionStarter]: At program point atan_floatENTRY(lines 53 115) the Hoare annotation is: true [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point atan_floatFINAL(lines 53 115) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L73(lines 73 74) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L57-1(lines 57 61) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L444 ceAbstractionStarter]: At program point L57-2(lines 57 61) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (= |atan_float_#in~x| atan_float_~x) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L57-3(lines 57 61) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L444 ceAbstractionStarter]: At program point L78(line 78) the Hoare annotation is: (or (not (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_atan~0)) (and (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (not (bvslt (bvand (_ bv2147483647 32) atan_float_~hx~0) (_ bv1054867456 32))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|))) (exists ((atan_float_~hx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= (bvand (_ bv2147483647 32) atan_float_~hx~0) atan_float_~ix~1))) (= (fp ((_ extract 31 31) atan_float_~hx~0) ((_ extract 30 23) atan_float_~hx~0) ((_ extract 22 0) atan_float_~hx~0)) |atan_float_#in~x|) (= |atan_float_#in~x| atan_float_~x)) (not (= ~one_atan~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0))))) [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L78-1(line 78) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 69) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 95) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 96) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point atan_floatEXIT(lines 53 115) no Hoare annotation was computed. [2018-12-09 19:37:34,967 INFO L448 ceAbstractionStarter]: For program point L63(lines 63 70) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L88(lines 88 94) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L88-2(lines 71 96) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L113(line 113) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L80(lines 80 86) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L113-2(line 113) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 114) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L72(lines 72 75) no Hoare annotation was computed. [2018-12-09 19:37:34,968 INFO L448 ceAbstractionStarter]: For program point L72-2(lines 72 75) no Hoare annotation was computed. [2018-12-09 19:37:34,973 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,973 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,974 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,975 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,976 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,977 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:34,978 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:37:34 BoogieIcfgContainer [2018-12-09 19:37:34,978 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 19:37:34,978 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 19:37:34,978 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 19:37:34,978 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 19:37:34,978 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:36:42" (3/4) ... [2018-12-09 19:37:34,981 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 19:37:34,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 19:37:34,984 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-09 19:37:34,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 19:37:34,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-12-09 19:37:34,985 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure atan_float [2018-12-09 19:37:34,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 35 nodes and edges [2018-12-09 19:37:34,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 15 nodes and edges [2018-12-09 19:37:34,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 19:37:34,988 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 19:37:35,003 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-09 19:37:35,004 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) [2018-12-09 19:37:35,020 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_c8e07b86-32bd-4e2a-8068-a830bd3c2489/bin-2019/utaipan/witness.graphml [2018-12-09 19:37:35,020 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 19:37:35,021 INFO L168 Benchmark]: Toolchain (without parser) took 60899.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 200.3 MB). Free memory was 943.4 MB in the beginning and 1.2 GB in the end (delta: -208.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:37:35,021 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:37:35,021 INFO L168 Benchmark]: CACSL2BoogieTranslator took 181.73 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-12-09 19:37:35,021 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-12-09 19:37:35,022 INFO L168 Benchmark]: Boogie Preprocessor took 28.27 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. [2018-12-09 19:37:35,022 INFO L168 Benchmark]: RCFGBuilder took 8499.08 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. [2018-12-09 19:37:35,022 INFO L168 Benchmark]: TraceAbstraction took 52099.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -66.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:37:35,022 INFO L168 Benchmark]: Witness Printer took 42.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 19:37:35,023 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 972.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 181.73 ms. Allocated memory is still 1.0 GB. Free memory was 943.4 MB in the beginning and 927.3 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -197.7 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 28.27 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. * RCFGBuilder took 8499.08 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: 39.8 MB). Peak memory consumption was 39.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 52099.42 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 63.4 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -66.3 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 42.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 142]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,026 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - InvariantResult [Line: 120]: Loop Invariant [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,027 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2018-12-09 19:37:35,028 WARN L416 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (!(~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_atan) || \old(x) == x) || !(one_atan == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 54 locations, 1 error locations. SAFE Result, 52.0s OverallTime, 7 OverallIterations, 1 TraceHistogramMax, 47.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 301 SDtfs, 235 SDslu, 1087 SDs, 0 SdLazy, 359 SolverSat, 28 SolverUnsat, 9 SolverUnknown, 0 SolverNotchecked, 43.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 183 GetRequests, 125 SyntacticMatches, 1 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=54occurred 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, 7 MinimizatonAttempts, 5 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 13 LocationsWithAnnotation, 25 PreInvPairs, 30 NumberOfFragments, 170 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 13 FomulaSimplificationsInter, 245 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 3.1s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 167 NumberOfCodeBlocks, 167 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 160 ConstructedInterpolants, 24 QuantifiedInterpolants, 25449 SizeOfPredicates, 25 NumberOfNonLiveVariables, 987 ConjunctsInSsa, 54 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 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...