./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_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_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 4dddb731074a9a249891d6adbc7c778d25efe28d ................................................................................................................................................................................................................................................................................................................................ 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_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 4dddb731074a9a249891d6adbc7c778d25efe28d .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-02 20:56:05,991 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:56:05,992 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:56:06,001 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:56:06,001 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:56:06,002 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:56:06,003 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:56:06,004 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:56:06,005 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:56:06,005 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:56:06,006 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:56:06,006 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:56:06,007 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:56:06,008 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:56:06,008 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:56:06,009 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:56:06,010 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:56:06,011 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:56:06,012 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:56:06,014 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:56:06,014 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:56:06,015 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:56:06,017 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:56:06,017 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:56:06,017 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:56:06,018 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:56:06,018 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:56:06,019 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:56:06,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:56:06,020 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:56:06,020 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:56:06,021 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:56:06,021 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:56:06,021 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:56:06,022 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:56:06,022 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:56:06,023 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-12-02 20:56:06,033 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:56:06,033 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:56:06,033 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 20:56:06,034 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 20:56:06,034 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 20:56:06,035 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 20:56:06,035 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 20:56:06,035 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 20:56:06,035 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:56:06,036 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:56:06,037 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:56:06,037 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:56:06,038 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:56:06,038 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 20:56:06,039 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 20:56:06,039 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_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-02 20:56:06,062 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:56:06,069 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:56:06,071 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:56:06,072 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:56:06,072 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:56:06,072 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:06,119 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/cde6c6df2/bfd45e05f1224239a8a5d38667167c19/FLAG9e67ab8f6 [2018-12-02 20:56:06,520 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:56:06,520 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:06,524 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/cde6c6df2/bfd45e05f1224239a8a5d38667167c19/FLAG9e67ab8f6 [2018-12-02 20:56:06,532 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/cde6c6df2/bfd45e05f1224239a8a5d38667167c19 [2018-12-02 20:56:06,534 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:56:06,534 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:56:06,535 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:56:06,535 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:56:06,537 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:56:06,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@74e1e261 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06, skipping insertion in model container [2018-12-02 20:56:06,539 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,544 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:56:06,559 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:56:06,678 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:56:06,681 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:56:06,709 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:56:06,757 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:56:06,757 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06 WrapperNode [2018-12-02 20:56:06,757 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:56:06,758 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:56:06,758 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:56:06,758 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:56:06,763 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,770 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,774 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:56:06,775 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:56:06,775 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:56:06,775 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:56:06,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,781 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,783 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,783 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,791 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,796 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,797 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... [2018-12-02 20:56:06,799 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:56:06,799 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:56:06,799 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:56:06,799 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:56:06,800 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:06,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:56:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-02 20:56:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 20:56:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:56:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 20:56:06,830 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:56:06,830 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:56:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:56:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-02 20:56:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 20:56:06,831 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 20:56:06,831 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:56:07,074 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:56:07,074 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 20:56:07,074 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:07 BoogieIcfgContainer [2018-12-02 20:56:07,075 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:56:07,075 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:56:07,075 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:56:07,077 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:56:07,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:56:06" (1/3) ... [2018-12-02 20:56:07,077 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3e1574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:56:07, skipping insertion in model container [2018-12-02 20:56:07,077 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:06" (2/3) ... [2018-12-02 20:56:07,078 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2c3e1574 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:56:07, skipping insertion in model container [2018-12-02 20:56:07,078 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:07" (3/3) ... [2018-12-02 20:56:07,079 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:07,084 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:56:07,088 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 20:56:07,097 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 20:56:07,114 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:56:07,114 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 20:56:07,114 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:56:07,114 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:56:07,114 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:56:07,114 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:56:07,114 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:56:07,115 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:56:07,125 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states. [2018-12-02 20:56:07,128 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:56:07,128 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:07,128 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] [2018-12-02 20:56:07,130 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:07,133 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:07,133 INFO L82 PathProgramCache]: Analyzing trace with hash 257035693, now seen corresponding path program 1 times [2018-12-02 20:56:07,134 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:56:07,161 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:56:07,161 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:07,162 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:56:07,162 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:56:07,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:56:07,220 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:56:07,221 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:56:07,221 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 20:56:07,221 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 20:56:07,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 20:56:07,232 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 20:56:07,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:56:07,233 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 2 states. [2018-12-02 20:56:07,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:56:07,250 INFO L93 Difference]: Finished difference Result 144 states and 214 transitions. [2018-12-02 20:56:07,250 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 20:56:07,251 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-12-02 20:56:07,251 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:56:07,256 INFO L225 Difference]: With dead ends: 144 [2018-12-02 20:56:07,256 INFO L226 Difference]: Without dead ends: 72 [2018-12-02 20:56:07,258 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 [2018-12-02 20:56:07,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2018-12-02 20:56:07,280 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2018-12-02 20:56:07,280 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2018-12-02 20:56:07,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 89 transitions. [2018-12-02 20:56:07,282 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 89 transitions. Word has length 21 [2018-12-02 20:56:07,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:56:07,282 INFO L480 AbstractCegarLoop]: Abstraction has 72 states and 89 transitions. [2018-12-02 20:56:07,282 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 20:56:07,282 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 89 transitions. [2018-12-02 20:56:07,283 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:56:07,283 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:07,283 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] [2018-12-02 20:56:07,283 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:07,283 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:07,283 INFO L82 PathProgramCache]: Analyzing trace with hash -225488588, now seen corresponding path program 1 times [2018-12-02 20:56:07,283 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 20:56:07,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:56:07,284 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:07,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 20:56:07,284 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 20:56:07,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:56:07,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 20:56:07,334 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 20:56:07,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:56:07 BoogieIcfgContainer [2018-12-02 20:56:07,357 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:56:07,357 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:56:07,357 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:56:07,357 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:56:07,358 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:07" (3/4) ... [2018-12-02 20:56:07,360 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-02 20:56:07,360 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:56:07,360 INFO L168 Benchmark]: Toolchain (without parser) took 826.25 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -101.8 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,361 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:56:07,361 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,362 INFO L168 Benchmark]: Boogie Procedure Inliner took 16.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,362 INFO L168 Benchmark]: Boogie Preprocessor took 24.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,362 INFO L168 Benchmark]: RCFGBuilder took 275.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,363 INFO L168 Benchmark]: TraceAbstraction took 281.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:07,363 INFO L168 Benchmark]: Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 20:56:07,365 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 976.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 222.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 126.9 MB). Free memory was 949.7 MB in the beginning and 1.1 GB in the end (delta: -174.7 MB). Peak memory consumption was 30.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 16.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 24.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 275.55 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.9 MB). Peak memory consumption was 32.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 281.96 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.1 MB). Peak memory consumption was 33.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.62 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 233]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 58, overapproximation of someUnaryDOUBLEoperation at line 147, overapproximation of bitwiseAnd at line 161, overapproximation of someUnaryFLOAToperation at line 145, overapproximation of someBinaryArithmeticFLOAToperation at line 164. Possible FailurePath: [L12] static const float huge_floor = 1.0e30; [L60] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; [L143-L151] static const float one_asin = 1.0000000000e+00, huge_asin = 1.000e+30, pio2_hi_asin = 1.57079637050628662109375f, pio2_lo_asin = -4.37113900018624283e-8f, pio4_hi_asin = 0.785398185253143310546875f, pS0_asin = 1.6666667163e-01, pS1_asin = -3.2556581497e-01, pS2_asin = 2.0121252537e-01, pS3_asin = -4.0055535734e-02, pS4_asin = 7.9153501429e-04, pS5_asin = 3.4793309169e-05, qS1_asin = -2.4033949375e+00, qS2_asin = 2.0209457874e+00, qS3_asin = -6.8828397989e-01, qS4_asin = 7.7038154006e-02; VAL [\old(huge_asin)=6442450968, \old(huge_floor)=6442450957, \old(one_asin)=6442450960, \old(one_sqrt)=6442450958, \old(pio2_hi_asin)=6442450959, \old(pio2_lo_asin)=6442450952, \old(pio4_hi_asin)=6442450961, \old(pS0_asin)=6442450966, \old(pS1_asin)=6442450962, \old(pS2_asin)=6442450946, \old(pS3_asin)=6442450965, \old(pS4_asin)=6442450954, \old(pS5_asin)=6442450951, \old(qS1_asin)=6442450969, \old(qS2_asin)=6442450955, \old(qS3_asin)=6442450945, \old(qS4_asin)=6442450967, \old(tiny_sqrt)=6442450953, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L228] float x = -1.0f / 0.0f; VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L229] CALL, EXPR __ieee754_asinf(x) VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L154] float t, w, p, q, c, r, s; [L155] __int32_t hx, ix; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L157] ieee_float_shape_type gf_u; [L158] gf_u.value = (x) [L159] EXPR gf_u.word [L159] (hx) = gf_u.word [L161] ix = hx & 0x7fffffff VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L162] COND TRUE ix == 0x3f800000 [L164] return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=6442450963, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=-2147483648, ix=1065353216, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] RET, EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450949, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000] [L58] return x != x; VAL [\old(x)=6442450949, \result=0, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, tiny_sqrt=1/1000000000000000000000000000000, x=6442450949] [L232] RET, EXPR isnan_float(res) VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, isnan_float(res)=0, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] [L232] COND TRUE !isnan_float(res) [L233] __VERIFIER_error() VAL [huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, one_asin=1, one_sqrt=1, pio2_hi_asin=13176795/8388608, pio4_hi_asin=13176795/16777216, pS0_asin=16666667163/100000000000, pS2_asin=20121252537/100000000000, pS4_asin=79153501429/100000000000000, pS5_asin=34793309169/1000000000000000, qS2_asin=10104728937/5000000000, qS4_asin=38519077003/500000000000, res=6442450949, tiny_sqrt=1/1000000000000000000000000000000, x=6442450963] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 76 locations, 1 error locations. UNSAFE Result, 0.2s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 93 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=76occurred 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, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 20 ConstructedInterpolants, 0 QuantifiedInterpolants, 400 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 [2018-12-02 20:56:08,714 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 20:56:08,715 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 20:56:08,721 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 20:56:08,721 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 20:56:08,721 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 20:56:08,722 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 20:56:08,723 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 20:56:08,723 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 20:56:08,724 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 20:56:08,724 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 20:56:08,724 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 20:56:08,725 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 20:56:08,725 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 20:56:08,726 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 20:56:08,726 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 20:56:08,726 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 20:56:08,727 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 20:56:08,728 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 20:56:08,729 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 20:56:08,729 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 20:56:08,730 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 20:56:08,731 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 20:56:08,731 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 20:56:08,731 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 20:56:08,731 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 20:56:08,732 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 20:56:08,732 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 20:56:08,733 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 20:56:08,733 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 20:56:08,733 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 20:56:08,734 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 20:56:08,734 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 20:56:08,734 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 20:56:08,734 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 20:56:08,734 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 20:56:08,735 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-12-02 20:56:08,742 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 20:56:08,742 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 20:56:08,742 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 20:56:08,742 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 20:56:08,742 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 20:56:08,742 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 20:56:08,743 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 20:56:08,743 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 20:56:08,744 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 20:56:08,744 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 20:56:08,744 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-02 20:56:08,745 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-02 20:56:08,745 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_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 -> 4dddb731074a9a249891d6adbc7c778d25efe28d [2018-12-02 20:56:08,762 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 20:56:08,769 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 20:56:08,771 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 20:56:08,772 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 20:56:08,772 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 20:56:08,773 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:08,808 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/111d27575/8b528ffd5616463ca686c7ff9cd4fcd2/FLAGf56452672 [2018-12-02 20:56:09,259 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 20:56:09,259 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:09,264 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/111d27575/8b528ffd5616463ca686c7ff9cd4fcd2/FLAGf56452672 [2018-12-02 20:56:09,271 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/data/111d27575/8b528ffd5616463ca686c7ff9cd4fcd2 [2018-12-02 20:56:09,273 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 20:56:09,274 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 20:56:09,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 20:56:09,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 20:56:09,277 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 20:56:09,277 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,279 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a12c072 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09, skipping insertion in model container [2018-12-02 20:56:09,279 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,283 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 20:56:09,297 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 20:56:09,414 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:56:09,418 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 20:56:09,454 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 20:56:09,470 INFO L195 MainTranslator]: Completed translation [2018-12-02 20:56:09,471 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09 WrapperNode [2018-12-02 20:56:09,471 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 20:56:09,471 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 20:56:09,471 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 20:56:09,472 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 20:56:09,477 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,485 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,527 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 20:56:09,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 20:56:09,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 20:56:09,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 20:56:09,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,538 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,538 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,549 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,555 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,557 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... [2018-12-02 20:56:09,559 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 20:56:09,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 20:56:09,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 20:56:09,559 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 20:56:09,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:09,590 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 20:56:09,590 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-12-02 20:56:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-12-02 20:56:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 20:56:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-12-02 20:56:09,591 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-02 20:56:09,591 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 20:56:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 20:56:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-02 20:56:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-12-02 20:56:09,592 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-12-02 20:56:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-12-02 20:56:09,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-02 20:56:09,710 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:56:18,650 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:56:18,686 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:56:19,090 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-02 20:56:19,096 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 20:56:19,096 INFO L280 CfgBuilder]: Removed 16 assue(true) statements. [2018-12-02 20:56:19,096 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:19 BoogieIcfgContainer [2018-12-02 20:56:19,096 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 20:56:19,096 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 20:56:19,096 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 20:56:19,098 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 20:56:19,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 08:56:09" (1/3) ... [2018-12-02 20:56:19,099 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:56:19, skipping insertion in model container [2018-12-02 20:56:19,099 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 08:56:09" (2/3) ... [2018-12-02 20:56:19,100 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b0907b8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 08:56:19, skipping insertion in model container [2018-12-02 20:56:19,100 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:19" (3/3) ... [2018-12-02 20:56:19,101 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-12-02 20:56:19,106 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 20:56:19,112 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-02 20:56:19,123 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-02 20:56:19,140 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-02 20:56:19,141 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 20:56:19,141 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 20:56:19,141 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 20:56:19,141 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 20:56:19,141 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 20:56:19,141 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 20:56:19,141 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 20:56:19,141 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 20:56:19,151 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states. [2018-12-02 20:56:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-12-02 20:56:19,154 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:19,155 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] [2018-12-02 20:56:19,156 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:19,159 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:19,159 INFO L82 PathProgramCache]: Analyzing trace with hash 1204794971, now seen corresponding path program 1 times [2018-12-02 20:56:19,162 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:56:19,162 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:19,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:19,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:56:19,348 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:56:19,359 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:56:19,360 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:56:19,374 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:56:19,374 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 20:56:19,377 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-02 20:56:19,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-02 20:56:19,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:56:19,386 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 2 states. [2018-12-02 20:56:19,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:56:19,406 INFO L93 Difference]: Finished difference Result 142 states and 212 transitions. [2018-12-02 20:56:19,406 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-02 20:56:19,407 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-12-02 20:56:19,407 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:56:19,414 INFO L225 Difference]: With dead ends: 142 [2018-12-02 20:56:19,414 INFO L226 Difference]: Without dead ends: 71 [2018-12-02 20:56:19,417 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-02 20:56:19,427 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2018-12-02 20:56:19,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2018-12-02 20:56:19,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 20:56:19,444 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 88 transitions. [2018-12-02 20:56:19,446 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 88 transitions. Word has length 20 [2018-12-02 20:56:19,446 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:56:19,446 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 88 transitions. [2018-12-02 20:56:19,446 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-02 20:56:19,446 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 88 transitions. [2018-12-02 20:56:19,447 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-12-02 20:56:19,447 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:19,447 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] [2018-12-02 20:56:19,448 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:19,448 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:19,448 INFO L82 PathProgramCache]: Analyzing trace with hash -624565231, now seen corresponding path program 1 times [2018-12-02 20:56:19,449 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:56:19,449 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:19,452 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:19,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:56:19,624 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:56:19,703 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:56:19,703 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:56:19,712 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:56:19,712 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:56:19,713 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:56:19,713 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:56:19,714 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:56:19,714 INFO L87 Difference]: Start difference. First operand 71 states and 88 transitions. Second operand 7 states. [2018-12-02 20:56:25,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:56:25,932 INFO L93 Difference]: Finished difference Result 84 states and 101 transitions. [2018-12-02 20:56:25,932 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-12-02 20:56:25,933 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-12-02 20:56:25,933 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:56:25,934 INFO L225 Difference]: With dead ends: 84 [2018-12-02 20:56:25,934 INFO L226 Difference]: Without dead ends: 74 [2018-12-02 20:56:25,935 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:56:25,935 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-12-02 20:56:25,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 71. [2018-12-02 20:56:25,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 20:56:25,941 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 87 transitions. [2018-12-02 20:56:25,941 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 87 transitions. Word has length 21 [2018-12-02 20:56:25,941 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:56:25,941 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 87 transitions. [2018-12-02 20:56:25,941 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:56:25,941 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 87 transitions. [2018-12-02 20:56:25,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-12-02 20:56:25,942 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:25,942 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] [2018-12-02 20:56:25,942 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:25,942 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:25,942 INFO L82 PathProgramCache]: Analyzing trace with hash 2002478333, now seen corresponding path program 1 times [2018-12-02 20:56:25,942 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:56:25,943 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:25,945 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:26,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:56:26,142 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:56:28,009 WARN L180 SmtUtils]: Spent 657.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-12-02 20:56:30,151 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:56:30,151 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:56:30,160 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:56:30,160 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-12-02 20:56:30,161 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-12-02 20:56:30,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-12-02 20:56:30,161 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-12-02 20:56:30,161 INFO L87 Difference]: Start difference. First operand 71 states and 87 transitions. Second operand 9 states. [2018-12-02 20:56:33,694 WARN L180 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 9 [2018-12-02 20:56:39,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:56:39,918 INFO L93 Difference]: Finished difference Result 80 states and 96 transitions. [2018-12-02 20:56:39,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-12-02 20:56:39,919 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-12-02 20:56:39,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:56:39,920 INFO L225 Difference]: With dead ends: 80 [2018-12-02 20:56:39,920 INFO L226 Difference]: Without dead ends: 73 [2018-12-02 20:56:39,920 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.6s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-12-02 20:56:39,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-12-02 20:56:39,927 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 71. [2018-12-02 20:56:39,927 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 71 states. [2018-12-02 20:56:39,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 86 transitions. [2018-12-02 20:56:39,928 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 86 transitions. Word has length 22 [2018-12-02 20:56:39,928 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:56:39,928 INFO L480 AbstractCegarLoop]: Abstraction has 71 states and 86 transitions. [2018-12-02 20:56:39,928 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-12-02 20:56:39,929 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 86 transitions. [2018-12-02 20:56:39,929 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-12-02 20:56:39,929 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 20:56:39,929 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] [2018-12-02 20:56:39,929 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-02 20:56:39,929 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 20:56:39,929 INFO L82 PathProgramCache]: Analyzing trace with hash 1628950099, now seen corresponding path program 1 times [2018-12-02 20:56:39,930 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-02 20:56:39,930 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/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 [2018-12-02 20:56:39,933 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 20:56:40,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 20:56:40,888 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-02 20:56:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 20:56:40,964 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-02 20:56:40,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 20:56:40,983 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-12-02 20:56:40,983 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-02 20:56:40,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-02 20:56:40,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-12-02 20:56:40,983 INFO L87 Difference]: Start difference. First operand 71 states and 86 transitions. Second operand 7 states. [2018-12-02 20:56:45,409 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 20:56:45,409 INFO L93 Difference]: Finished difference Result 73 states and 88 transitions. [2018-12-02 20:56:45,410 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-12-02 20:56:45,411 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-12-02 20:56:45,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 20:56:45,411 INFO L225 Difference]: With dead ends: 73 [2018-12-02 20:56:45,411 INFO L226 Difference]: Without dead ends: 0 [2018-12-02 20:56:45,411 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-12-02 20:56:45,411 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-02 20:56:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-02 20:56:45,412 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-02 20:56:45,412 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-02 20:56:45,412 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 24 [2018-12-02 20:56:45,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 20:56:45,412 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-02 20:56:45,412 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-02 20:56:45,412 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-02 20:56:45,412 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-02 20:56:45,415 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-02 20:56:45,565 INFO L448 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L451 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L451 ceAbstractionStarter]: At program point L130-2(lines 130 134) the Hoare annotation is: true [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-12-02 20:56:45,566 INFO L451 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-12-02 20:56:45,566 INFO L448 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point L135-1(lines 128 141) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point L135-2(lines 135 139) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-02 20:56:45,567 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-12-02 20:56:45,567 INFO L444 ceAbstractionStarter]: At program point L232(line 232) the Hoare annotation is: (let ((.cse1 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~res~0 (let ((.cse0 (fp.sub roundNearestTiesToEven .cse1 .cse1))) (fp.div roundNearestTiesToEven .cse0 .cse0))) (= main_~x~0 .cse1))) [2018-12-02 20:56:45,567 INFO L448 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L444 ceAbstractionStarter]: At program point L229(line 229) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24))) [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L444 ceAbstractionStarter]: At program point L192(line 192) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L444 ceAbstractionStarter]: At program point L156-2(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L156-3(lines 156 160) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-12-02 20:56:45,568 INFO L448 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L451 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L444 ceAbstractionStarter]: At program point L199-2(lines 199 203) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L204-1(lines 196 214) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L204-2(lines 204 208) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-12-02 20:56:45,569 INFO L444 ceAbstractionStarter]: At program point L167-1(lines 167 182) the Hoare annotation is: (and (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (= (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) __ieee754_asinf_~ix~3))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|) (exists ((__ieee754_asinf_~hx~1 (_ BitVec 32))) (and (not (bvsgt (bvand (_ bv2147483647 32) __ieee754_asinf_~hx~1) (_ bv1065353216 32))) (= (fp ((_ extract 31 31) __ieee754_asinf_~hx~1) ((_ extract 30 23) __ieee754_asinf_~hx~1) ((_ extract 22 0) __ieee754_asinf_~hx~1)) |__ieee754_asinf_#in~x|)))) [2018-12-02 20:56:45,569 INFO L448 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L451 ceAbstractionStarter]: At program point L98-2(lines 98 107) the Hoare annotation is: true [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L98-3(lines 62 127) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L451 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-12-02 20:56:45,570 INFO L448 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L451 ceAbstractionStarter]: At program point L67-2(lines 67 71) the Hoare annotation is: true [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L67-3(lines 67 71) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L451 ceAbstractionStarter]: At program point L121-2(lines 121 125) the Hoare annotation is: true [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L121-3(lines 121 125) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L84-2(lines 84 85) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L451 ceAbstractionStarter]: At program point L84-3(lines 84 85) the Hoare annotation is: true [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L84-4(lines 84 85) no Hoare annotation was computed. [2018-12-02 20:56:45,571 INFO L448 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-12-02 20:56:45,575 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,576 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,577 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,580 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,581 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,581 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,581 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,581 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,581 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 08:56:45 BoogieIcfgContainer [2018-12-02 20:56:45,584 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 20:56:45,584 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 20:56:45,584 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 20:56:45,584 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 20:56:45,585 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 08:56:19" (3/4) ... [2018-12-02 20:56:45,587 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-12-02 20:56:45,591 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-12-02 20:56:45,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 43 nodes and edges [2018-12-02 20:56:45,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 18 nodes and edges [2018-12-02 20:56:45,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-02 20:56:45,595 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-02 20:56:45,612 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-12-02 20:56:45,613 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) [2018-12-02 20:56:45,637 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7984cc48-f815-420e-ac3e-0eaee2cf29ae/bin-2019/utaipan/witness.graphml [2018-12-02 20:56:45,637 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 20:56:45,638 INFO L168 Benchmark]: Toolchain (without parser) took 36364.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 944.7 MB in the beginning and 913.4 MB in the end (delta: 31.3 MB). Peak memory consumption was 173.9 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,639 INFO L168 Benchmark]: CDTParser took 0.12 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. [2018-12-02 20:56:45,639 INFO L168 Benchmark]: CACSL2BoogieTranslator took 196.61 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,639 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -214.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,639 INFO L168 Benchmark]: Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,640 INFO L168 Benchmark]: RCFGBuilder took 9536.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,640 INFO L168 Benchmark]: TraceAbstraction took 26487.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 163.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,640 INFO L168 Benchmark]: Witness Printer took 53.54 ms. Allocated memory is still 1.2 GB. Free memory was 920.2 MB in the beginning and 913.4 MB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2018-12-02 20:56:45,642 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 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 196.61 ms. Allocated memory is still 1.0 GB. Free memory was 944.7 MB in the beginning and 923.2 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.6 MB). Free memory was 923.2 MB in the beginning and 1.1 GB in the end (delta: -214.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * RCFGBuilder took 9536.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 40.2 MB). Peak memory consumption was 40.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26487.23 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 920.2 MB in the end (delta: 163.2 MB). Peak memory consumption was 163.2 MB. Max. memory is 11.5 GB. * Witness Printer took 53.54 ms. Allocated memory is still 1.2 GB. Free memory was 920.2 MB in the beginning and 913.4 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_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 233]: 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: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 130]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 67]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 199]: Loop Invariant [2018-12-02 20:56:45,645 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,646 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,647 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-12-02 20:56:45,648 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] Derived loop invariant: ((\old(x) == x && (\exists __ieee754_asinf_~hx~1 : bv32 :: ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x) && ~bvand32(2147483647bv32, __ieee754_asinf_~hx~1) == ix)) && ~fp~LONGDOUBLE(hx[31:31], hx[30:23], hx[22:0]) == \old(x)) && (\exists __ieee754_asinf_~hx~1 : bv32 :: !~bvsgt32(~bvand32(2147483647bv32, __ieee754_asinf_~hx~1), 1065353216bv32) && ~fp~LONGDOUBLE(__ieee754_asinf_~hx~1[31:31], __ieee754_asinf_~hx~1[30:23], __ieee754_asinf_~hx~1[22:0]) == \old(x)) - InvariantResult [Line: 156]: Loop Invariant Derived loop invariant: \old(x) == x - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 75 locations, 1 error locations. SAFE Result, 26.4s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 20.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 309 SDtfs, 168 SDslu, 1112 SDs, 0 SdLazy, 157 SolverSat, 17 SolverUnsat, 4 SolverUnknown, 0 SolverNotchecked, 15.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 7.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=75occurred 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, 4 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 29 PreInvPairs, 39 NumberOfFragments, 209 HoareAnnotationTreeSize, 29 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.3s SatisfiabilityAnalysisTime, 4.2s InterpolantComputationTime, 87 NumberOfCodeBlocks, 87 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 83 ConstructedInterpolants, 9 QuantifiedInterpolants, 9099 SizeOfPredicates, 12 NumberOfNonLiveVariables, 435 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...