./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_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_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ................................................................................................................................................................................................................................................................................................................... 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_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 1ff4e8ff973f803d8fa94df33d1e2314e0626318 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 07:22:26,853 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 07:22:26,854 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 07:22:26,860 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 07:22:26,860 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 07:22:26,861 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 07:22:26,861 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 07:22:26,862 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 07:22:26,863 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 07:22:26,864 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 07:22:26,864 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 07:22:26,864 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 07:22:26,865 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 07:22:26,865 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 07:22:26,866 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 07:22:26,866 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 07:22:26,867 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 07:22:26,868 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 07:22:26,869 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 07:22:26,869 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 07:22:26,870 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 07:22:26,871 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 07:22:26,872 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 07:22:26,872 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 07:22:26,872 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 07:22:26,873 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 07:22:26,873 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 07:22:26,874 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 07:22:26,874 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 07:22:26,875 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 07:22:26,875 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 07:22:26,875 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 07:22:26,875 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 07:22:26,876 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 07:22:26,876 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 07:22:26,877 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 07:22:26,877 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-09 07:22:26,884 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 07:22:26,885 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 07:22:26,885 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 07:22:26,885 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 07:22:26,885 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 07:22:26,885 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 07:22:26,885 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 07:22:26,886 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 07:22:26,886 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 07:22:26,887 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 07:22:26,887 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 07:22:26,888 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 07:22:26,888 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 07:22:26,889 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_14682185-2ca9-420e-8710-8511d38cd72e/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-12-09 07:22:26,906 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 07:22:26,915 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 07:22:26,918 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 07:22:26,919 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 07:22:26,919 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 07:22:26,920 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:26,958 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/25316f3bf/cd3da5afda8f4e2486039a463b20f0a8/FLAG23160b5a0 [2018-12-09 07:22:27,449 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 07:22:27,450 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:27,454 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/25316f3bf/cd3da5afda8f4e2486039a463b20f0a8/FLAG23160b5a0 [2018-12-09 07:22:27,949 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/25316f3bf/cd3da5afda8f4e2486039a463b20f0a8 [2018-12-09 07:22:27,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 07:22:27,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 07:22:27,953 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 07:22:27,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 07:22:27,956 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 07:22:27,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:27" (1/1) ... [2018-12-09 07:22:27,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@22096c3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:27, skipping insertion in model container [2018-12-09 07:22:27,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:27" (1/1) ... [2018-12-09 07:22:27,965 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 07:22:27,979 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 07:22:28,080 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:22:28,082 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 07:22:28,100 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:22:28,112 INFO L195 MainTranslator]: Completed translation [2018-12-09 07:22:28,112 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28 WrapperNode [2018-12-09 07:22:28,112 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 07:22:28,113 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 07:22:28,113 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 07:22:28,113 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 07:22:28,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,127 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,159 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 07:22:28,159 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 07:22:28,159 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 07:22:28,159 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 07:22:28,166 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,167 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,173 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,177 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... [2018-12-09 07:22:28,179 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 07:22:28,180 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 07:22:28,180 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 07:22:28,180 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 07:22:28,180 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:22:28,213 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 07:22:28,213 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 07:22:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 07:22:28,214 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-09 07:22:28,214 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 07:22:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 07:22:28,215 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 07:22:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-09 07:22:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 07:22:28,215 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 07:22:28,215 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 07:22:28,397 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 07:22:28,397 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 07:22:28,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:28 BoogieIcfgContainer [2018-12-09 07:22:28,397 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 07:22:28,398 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 07:22:28,398 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 07:22:28,400 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 07:22:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:27" (1/3) ... [2018-12-09 07:22:28,400 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1c72da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:28, skipping insertion in model container [2018-12-09 07:22:28,400 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:28" (2/3) ... [2018-12-09 07:22:28,401 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d1c72da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:28, skipping insertion in model container [2018-12-09 07:22:28,401 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:28" (3/3) ... [2018-12-09 07:22:28,402 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:28,407 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 07:22:28,412 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 07:22:28,421 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 07:22:28,441 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 07:22:28,441 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 07:22:28,441 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 07:22:28,441 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 07:22:28,441 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 07:22:28,441 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 07:22:28,441 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 07:22:28,441 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 07:22:28,452 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-12-09 07:22:28,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 07:22:28,456 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:22:28,456 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] [2018-12-09 07:22:28,458 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:22:28,461 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:22:28,461 INFO L82 PathProgramCache]: Analyzing trace with hash -1237427785, now seen corresponding path program 1 times [2018-12-09 07:22:28,462 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:22:28,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:22:28,491 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:22:28,491 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:22:28,491 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:22:28,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:22:28,539 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 07:22:28,540 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:22:28,540 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:22:28,541 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 07:22:28,543 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 07:22:28,550 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 07:22:28,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 07:22:28,552 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-12-09 07:22:28,564 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:22:28,565 INFO L93 Difference]: Finished difference Result 87 states and 122 transitions. [2018-12-09 07:22:28,565 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 07:22:28,566 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 22 [2018-12-09 07:22:28,566 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:22:28,572 INFO L225 Difference]: With dead ends: 87 [2018-12-09 07:22:28,572 INFO L226 Difference]: Without dead ends: 43 [2018-12-09 07:22:28,574 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 07:22:28,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-12-09 07:22:28,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-12-09 07:22:28,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-12-09 07:22:28,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-12-09 07:22:28,596 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 22 [2018-12-09 07:22:28,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:22:28,596 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-12-09 07:22:28,596 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 07:22:28,596 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-12-09 07:22:28,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 07:22:28,597 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:22:28,597 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 07:22:28,597 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:22:28,597 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:22:28,597 INFO L82 PathProgramCache]: Analyzing trace with hash 1731907338, now seen corresponding path program 1 times [2018-12-09 07:22:28,597 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 07:22:28,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:22:28,598 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:22:28,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 07:22:28,598 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 07:22:28,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:22:28,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 07:22:28,644 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 07:22:28,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:22:28 BoogieIcfgContainer [2018-12-09 07:22:28,661 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 07:22:28,661 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 07:22:28,661 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 07:22:28,662 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 07:22:28,662 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:28" (3/4) ... [2018-12-09 07:22:28,664 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-09 07:22:28,664 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 07:22:28,665 INFO L168 Benchmark]: Toolchain (without parser) took 713.45 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 961.4 MB in the beginning and 1.0 GB in the end (delta: -85.9 MB). Peak memory consumption was 24.2 MB. Max. memory is 11.5 GB. [2018-12-09 07:22:28,666 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:22:28,666 INFO L168 Benchmark]: CACSL2BoogieTranslator took 159.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 07:22:28,666 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-09 07:22:28,667 INFO L168 Benchmark]: Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:22:28,667 INFO L168 Benchmark]: RCFGBuilder took 217.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. [2018-12-09 07:22:28,667 INFO L168 Benchmark]: TraceAbstraction took 263.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-12-09 07:22:28,667 INFO L168 Benchmark]: Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:22:28,669 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 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 159.76 ms. Allocated memory is still 1.0 GB. Free memory was 961.4 MB in the beginning and 950.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.15 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 110.1 MB). Free memory was 950.6 MB in the beginning and 1.1 GB in the end (delta: -151.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.31 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 217.70 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 21.2 MB). Peak memory consumption was 21.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 263.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 2.89 ms. Allocated memory is still 1.1 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 98]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of bitwiseAnd at line 27, overapproximation of someBinaryArithmeticFLOAToperation at line 30. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450950, \old(tiny_sqrt)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = __VERIFIER_nondet_float(); [L92] COND TRUE x < -0.0f VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450949, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450949, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [\old(x)=6442450949, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [\old(x)=6442450949, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] RET, EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L94] float res = __ieee754_sqrtf(x); [L97] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] return x != x; VAL [\old(x)=6442450946, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450946] [L97] RET, EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L97] COND TRUE !isnan_float(res) [L98] __VERIFIER_error() VAL [one_sqrt=1, res=6442450946, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 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=48occurred 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, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 441 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 07:22:30,030 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 07:22:30,031 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 07:22:30,038 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 07:22:30,038 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 07:22:30,038 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 07:22:30,039 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 07:22:30,040 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 07:22:30,041 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 07:22:30,041 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 07:22:30,042 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 07:22:30,042 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 07:22:30,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 07:22:30,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 07:22:30,043 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 07:22:30,044 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 07:22:30,044 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 07:22:30,045 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 07:22:30,046 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 07:22:30,047 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 07:22:30,048 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 07:22:30,048 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 07:22:30,049 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 07:22:30,049 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 07:22:30,050 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 07:22:30,050 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 07:22:30,051 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 07:22:30,051 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 07:22:30,052 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 07:22:30,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 07:22:30,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 07:22:30,053 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 07:22:30,053 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 07:22:30,053 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 07:22:30,053 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 07:22:30,054 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 07:22:30,054 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-09 07:22:30,061 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 07:22:30,062 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 07:22:30,062 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 07:22:30,062 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 07:22:30,062 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 07:22:30,063 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 07:22:30,063 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 07:22:30,063 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 07:22:30,063 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 07:22:30,063 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 07:22:30,064 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-09 07:22:30,064 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 07:22:30,065 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 07:22:30,065 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 07:22:30,066 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-09 07:22:30,066 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-09 07:22:30,067 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_14682185-2ca9-420e-8710-8511d38cd72e/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 -> 1ff4e8ff973f803d8fa94df33d1e2314e0626318 [2018-12-09 07:22:30,085 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 07:22:30,095 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 07:22:30,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 07:22:30,098 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 07:22:30,099 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 07:22:30,099 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:30,136 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/30691b6e4/7e46c01746dc47408e9b84465db5ac78/FLAGbc8b650c5 [2018-12-09 07:22:30,550 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 07:22:30,551 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/sv-benchmarks/c/float-newlib/float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:30,555 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/30691b6e4/7e46c01746dc47408e9b84465db5ac78/FLAGbc8b650c5 [2018-12-09 07:22:30,563 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/data/30691b6e4/7e46c01746dc47408e9b84465db5ac78 [2018-12-09 07:22:30,565 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 07:22:30,566 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 07:22:30,566 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 07:22:30,566 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 07:22:30,568 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 07:22:30,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,571 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36a0bb1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30, skipping insertion in model container [2018-12-09 07:22:30,571 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 07:22:30,586 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 07:22:30,684 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:22:30,687 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 07:22:30,705 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 07:22:30,720 INFO L195 MainTranslator]: Completed translation [2018-12-09 07:22:30,720 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30 WrapperNode [2018-12-09 07:22:30,720 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 07:22:30,721 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 07:22:30,721 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 07:22:30,721 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 07:22:30,726 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,733 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 07:22:30,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 07:22:30,737 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 07:22:30,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 07:22:30,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,743 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,746 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,746 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,753 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,758 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... [2018-12-09 07:22:30,760 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 07:22:30,760 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 07:22:30,760 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 07:22:30,760 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 07:22:30,761 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:22:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 07:22:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 07:22:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-09 07:22:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-09 07:22:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-09 07:22:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 07:22:30,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 07:22:30,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 07:22:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-09 07:22:30,824 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-09 07:22:30,824 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-09 07:22:30,978 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-09 07:22:31,381 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 07:22:31,381 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-09 07:22:31,382 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:31 BoogieIcfgContainer [2018-12-09 07:22:31,382 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 07:22:31,382 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 07:22:31,382 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 07:22:31,384 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 07:22:31,384 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:22:30" (1/3) ... [2018-12-09 07:22:31,384 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4e9f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:31, skipping insertion in model container [2018-12-09 07:22:31,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:22:30" (2/3) ... [2018-12-09 07:22:31,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@d4e9f7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:22:31, skipping insertion in model container [2018-12-09 07:22:31,385 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:31" (3/3) ... [2018-12-09 07:22:31,386 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0710_true-unreach-call.c [2018-12-09 07:22:31,391 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 07:22:31,395 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-09 07:22:31,404 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-09 07:22:31,420 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-09 07:22:31,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 07:22:31,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 07:22:31,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 07:22:31,420 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 07:22:31,420 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 07:22:31,420 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 07:22:31,420 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 07:22:31,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 07:22:31,430 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-12-09 07:22:31,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-09 07:22:31,433 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:22:31,434 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 07:22:31,435 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:22:31,438 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:22:31,439 INFO L82 PathProgramCache]: Analyzing trace with hash -1233283399, now seen corresponding path program 1 times [2018-12-09 07:22:31,441 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 07:22:31,441 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:22:31,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:22:31,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:22:31,546 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:22:31,557 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 07:22:31,557 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 07:22:31,565 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:22:31,565 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 07:22:31,567 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-09 07:22:31,574 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-09 07:22:31,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-09 07:22:31,576 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-12-09 07:22:31,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:22:31,588 INFO L93 Difference]: Finished difference Result 85 states and 120 transitions. [2018-12-09 07:22:31,588 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-09 07:22:31,589 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-09 07:22:31,589 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:22:31,595 INFO L225 Difference]: With dead ends: 85 [2018-12-09 07:22:31,595 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 07:22:31,597 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 20 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 07:22:31,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 07:22:31,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 07:22:31,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 07:22:31,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 52 transitions. [2018-12-09 07:22:31,620 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 52 transitions. Word has length 21 [2018-12-09 07:22:31,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:22:31,620 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 52 transitions. [2018-12-09 07:22:31,620 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-09 07:22:31,620 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 52 transitions. [2018-12-09 07:22:31,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-09 07:22:31,621 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:22:31,621 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] [2018-12-09 07:22:31,621 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:22:31,621 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:22:31,622 INFO L82 PathProgramCache]: Analyzing trace with hash -1384450073, now seen corresponding path program 1 times [2018-12-09 07:22:31,622 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 07:22:31,622 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:22:31,625 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:22:31,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:22:31,725 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:22:33,594 WARN L180 SmtUtils]: Spent 693.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-12-09 07:22:40,967 WARN L180 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-12-09 07:22:49,044 WARN L180 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-12-09 07:22:50,837 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 07:22:50,837 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 07:22:50,844 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:22:50,844 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2018-12-09 07:22:50,845 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2018-12-09 07:22:50,845 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2018-12-09 07:22:50,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=85, Unknown=4, NotChecked=0, Total=110 [2018-12-09 07:22:50,846 INFO L87 Difference]: Start difference. First operand 42 states and 52 transitions. Second operand 11 states. [2018-12-09 07:23:25,696 WARN L180 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 27 [2018-12-09 07:23:49,820 WARN L180 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-12-09 07:24:07,234 WARN L180 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2018-12-09 07:25:14,926 WARN L180 SmtUtils]: Spent 423.00 ms on a formula simplification that was a NOOP. DAG size: 26 [2018-12-09 07:26:46,635 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:26:46,635 INFO L93 Difference]: Finished difference Result 54 states and 65 transitions. [2018-12-09 07:26:46,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 07:26:46,636 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 22 [2018-12-09 07:26:46,637 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:26:46,639 INFO L225 Difference]: With dead ends: 54 [2018-12-09 07:26:46,639 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 07:26:46,639 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 35.8s TimeCoverageRelationStatistics Valid=47, Invalid=186, Unknown=7, NotChecked=0, Total=240 [2018-12-09 07:26:46,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 07:26:46,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-12-09 07:26:46,646 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 07:26:46,647 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 51 transitions. [2018-12-09 07:26:46,647 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 51 transitions. Word has length 22 [2018-12-09 07:26:46,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:26:46,647 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 51 transitions. [2018-12-09 07:26:46,647 INFO L481 AbstractCegarLoop]: Interpolant automaton has 11 states. [2018-12-09 07:26:46,647 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 51 transitions. [2018-12-09 07:26:46,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-12-09 07:26:46,648 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:26:46,648 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 07:26:46,648 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:26:46,648 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:26:46,649 INFO L82 PathProgramCache]: Analyzing trace with hash 1726985307, now seen corresponding path program 1 times [2018-12-09 07:26:46,649 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 07:26:46,649 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:26:46,653 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:26:46,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:26:46,679 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:26:46,746 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 07:26:46,747 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 07:26:46,754 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:26:46,754 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 07:26:46,754 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 07:26:46,755 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 07:26:46,755 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 07:26:46,755 INFO L87 Difference]: Start difference. First operand 42 states and 51 transitions. Second operand 7 states. [2018-12-09 07:26:47,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:26:47,681 INFO L93 Difference]: Finished difference Result 57 states and 66 transitions. [2018-12-09 07:26:47,682 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-09 07:26:47,682 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-12-09 07:26:47,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:26:47,682 INFO L225 Difference]: With dead ends: 57 [2018-12-09 07:26:47,683 INFO L226 Difference]: Without dead ends: 47 [2018-12-09 07:26:47,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 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 07:26:47,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 47 states. [2018-12-09 07:26:47,686 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 47 to 42. [2018-12-09 07:26:47,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 07:26:47,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 50 transitions. [2018-12-09 07:26:47,687 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 50 transitions. Word has length 23 [2018-12-09 07:26:47,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:26:47,687 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 50 transitions. [2018-12-09 07:26:47,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 07:26:47,687 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 50 transitions. [2018-12-09 07:26:47,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-09 07:26:47,688 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:26:47,688 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 07:26:47,688 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:26:47,688 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:26:47,688 INFO L82 PathProgramCache]: Analyzing trace with hash -1388819741, now seen corresponding path program 1 times [2018-12-09 07:26:47,688 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 07:26:47,688 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:26:47,691 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:26:47,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:26:47,854 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:26:49,072 WARN L180 SmtUtils]: Spent 414.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-09 07:26:50,997 WARN L180 SmtUtils]: Spent 388.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-09 07:26:53,883 WARN L180 SmtUtils]: Spent 427.00 ms on a formula simplification that was a NOOP. DAG size: 7 [2018-12-09 07:26:56,801 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 07:26:56,801 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 07:26:56,811 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:26:56,811 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-09 07:26:56,812 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-09 07:26:56,812 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-09 07:26:56,812 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-09 07:26:56,812 INFO L87 Difference]: Start difference. First operand 42 states and 50 transitions. Second operand 7 states. [2018-12-09 07:27:01,598 WARN L180 SmtUtils]: Spent 1.08 s on a formula simplification that was a NOOP. DAG size: 11 [2018-12-09 07:27:02,403 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:27:02,404 INFO L93 Difference]: Finished difference Result 49 states and 57 transitions. [2018-12-09 07:27:02,404 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 07:27:02,404 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-09 07:27:02,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:27:02,405 INFO L225 Difference]: With dead ends: 49 [2018-12-09 07:27:02,405 INFO L226 Difference]: Without dead ends: 42 [2018-12-09 07:27:02,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.0s TimeCoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2018-12-09 07:27:02,406 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-12-09 07:27:02,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-12-09 07:27:02,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-12-09 07:27:02,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 49 transitions. [2018-12-09 07:27:02,412 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 49 transitions. Word has length 24 [2018-12-09 07:27:02,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:27:02,413 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 49 transitions. [2018-12-09 07:27:02,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-09 07:27:02,413 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 49 transitions. [2018-12-09 07:27:02,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-12-09 07:27:02,413 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 07:27:02,414 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, 1] [2018-12-09 07:27:02,414 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-09 07:27:02,414 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 07:27:02,414 INFO L82 PathProgramCache]: Analyzing trace with hash -1872162410, now seen corresponding path program 1 times [2018-12-09 07:27:02,415 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-09 07:27:02,415 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/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 07:27:02,421 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 07:27:02,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 07:27:02,455 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 07:27:02,508 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 07:27:02,508 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-09 07:27:02,516 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 07:27:02,516 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-09 07:27:02,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-09 07:27:02,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-09 07:27:02,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-09 07:27:02,516 INFO L87 Difference]: Start difference. First operand 42 states and 49 transitions. Second operand 6 states. [2018-12-09 07:27:02,745 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 07:27:02,745 INFO L93 Difference]: Finished difference Result 45 states and 53 transitions. [2018-12-09 07:27:02,746 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-09 07:27:02,746 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 34 [2018-12-09 07:27:02,746 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 07:27:02,746 INFO L225 Difference]: With dead ends: 45 [2018-12-09 07:27:02,746 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 07:27:02,747 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-12-09 07:27:02,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 07:27:02,747 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 07:27:02,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 07:27:02,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 07:27:02,747 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-12-09 07:27:02,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 07:27:02,747 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 07:27:02,747 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-09 07:27:02,747 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 07:27:02,747 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 07:27:02,750 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 07:27:02,786 WARN L250 erpolLogProxyWrapper]: Already inconsistent. [2018-12-09 07:27:07,737 WARN L180 SmtUtils]: Spent 4.89 s on a formula simplification. DAG size of input: 30 DAG size of output: 12 [2018-12-09 07:27:07,831 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-12-09 07:27:07,831 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-12-09 07:27:07,831 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-12-09 07:27:07,831 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-09 07:27:07,831 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-09 07:27:07,831 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 07:27:07,831 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 07:27:07,832 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L444 ceAbstractionStarter]: At program point L97(line 97) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~x (_ FloatingPoint 8 24))) (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven __ieee754_sqrtf_~x __ieee754_sqrtf_~x))) (fp.div roundNearestTiesToEven .cse0 .cse0)))) (fp.lt main_~x~0 (fp.neg (_ +zero 8 24)))) [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point L97-1(lines 97 100) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L444 ceAbstractionStarter]: At program point L94(line 94) the Hoare annotation is: (fp.lt main_~x~0 (fp.neg (_ +zero 8 24))) [2018-12-09 07:27:07,832 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 84 104) the Hoare annotation is: true [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point L94-1(line 94) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point L92(lines 92 101) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 98) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point L92-2(lines 92 101) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 84 104) no Hoare annotation was computed. [2018-12-09 07:27:07,832 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 84 104) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L98(line 98) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L444 ceAbstractionStarter]: At program point L53-2(lines 53 62) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-12-09 07:27:07,833 INFO L448 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L444 ceAbstractionStarter]: At program point L22-2(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L444 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2018-12-09 07:27:07,834 INFO L444 ceAbstractionStarter]: At program point L39-3(lines 39 40) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (not (bvslt __ieee754_sqrtf_~ix~0 (_ bv0 32))) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-12-09 07:27:07,834 INFO L448 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-12-09 07:27:07,835 INFO L448 ceAbstractionStarter]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2018-12-09 07:27:07,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,838 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,839 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,843 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,844 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,845 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,846 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,847 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,848 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,848 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,848 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,848 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,848 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,849 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,850 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,850 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,850 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,850 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:27:07 BoogieIcfgContainer [2018-12-09 07:27:07,852 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 07:27:07,852 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 07:27:07,852 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 07:27:07,853 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 07:27:07,853 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:22:31" (3/4) ... [2018-12-09 07:27:07,856 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 07:27:07,861 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-09 07:27:07,861 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 07:27:07,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 07:27:07,862 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-09 07:27:07,865 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 22 nodes and edges [2018-12-09 07:27:07,866 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-12-09 07:27:07,866 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-09 07:27:07,882 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-09 07:27:07,882 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 07:27:07,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 07:27:07,883 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-12-09 07:27:07,898 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_14682185-2ca9-420e-8710-8511d38cd72e/bin-2019/utaipan/witness.graphml [2018-12-09 07:27:07,898 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 07:27:07,899 INFO L168 Benchmark]: Toolchain (without parser) took 277333.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 944.7 MB in the beginning and 865.5 MB in the end (delta: 79.2 MB). Peak memory consumption was 200.9 MB. Max. memory is 11.5 GB. [2018-12-09 07:27:07,899 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 07:27:07,899 INFO L168 Benchmark]: CACSL2BoogieTranslator took 154.36 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. [2018-12-09 07:27:07,899 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.19 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:27:07,900 INFO L168 Benchmark]: Boogie Preprocessor took 22.58 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 07:27:07,900 INFO L168 Benchmark]: RCFGBuilder took 621.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. [2018-12-09 07:27:07,900 INFO L168 Benchmark]: TraceAbstraction took 276469.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 872.3 MB in the end (delta: 216.9 MB). Peak memory consumption was 216.9 MB. Max. memory is 11.5 GB. [2018-12-09 07:27:07,900 INFO L168 Benchmark]: Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory was 872.3 MB in the beginning and 865.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-09 07:27:07,901 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 154.36 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 927.3 MB in the end (delta: 17.4 MB). Peak memory consumption was 17.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.19 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.58 ms. Allocated memory is still 1.0 GB. Free memory is still 927.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 621.74 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 121.6 MB). Free memory was 927.3 MB in the beginning and 1.1 GB in the end (delta: -162.0 MB). Peak memory consumption was 14.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 276469.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 872.3 MB in the end (delta: 216.9 MB). Peak memory consumption was 216.9 MB. Max. memory is 11.5 GB. * Witness Printer took 45.86 ms. Allocated memory is still 1.2 GB. Free memory was 872.3 MB in the beginning and 865.5 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 98]: 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: 76]: Loop Invariant [2018-12-09 07:27:07,904 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,904 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,904 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,904 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,905 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,905 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,905 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,905 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,905 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,906 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,907 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,908 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 53]: Loop Invariant [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,909 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,910 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-12-09 07:27:07,911 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: !~bvslt32(__ieee754_sqrtf_~ix~0, 0bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. SAFE Result, 276.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 242.5s AutomataDifference, 0.0s DeadEndRemovalTime, 5.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 215 SDtfs, 198 SDslu, 625 SDs, 0 SdLazy, 229 SolverSat, 12 SolverUnsat, 70 SolverUnknown, 0 SolverNotchecked, 164.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 132 GetRequests, 96 SyntacticMatches, 0 SemanticMatches, 36 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 47.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred 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, 5 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 136 HoareAnnotationTreeSize, 16 FomulaSimplifications, 296 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 99 FormulaSimplificationTreeSizeReductionInter, 5.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 28.2s InterpolantComputationTime, 124 NumberOfCodeBlocks, 124 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 119 ConstructedInterpolants, 25 QuantifiedInterpolants, 18390 SizeOfPredicates, 16 NumberOfNonLiveVariables, 327 ConjunctsInSsa, 40 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...