./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.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 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 0.1.23-5842f4b [2018-11-18 14:33:03,393 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:33:03,395 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:33:03,402 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:33:03,402 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:33:03,403 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:33:03,404 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:33:03,405 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:33:03,406 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:33:03,406 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:33:03,407 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:33:03,407 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:33:03,408 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:33:03,409 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:33:03,409 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:33:03,410 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:33:03,410 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:33:03,413 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:33:03,414 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:33:03,416 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:33:03,416 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:33:03,417 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:33:03,419 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:33:03,420 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:33:03,420 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:33:03,420 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:33:03,421 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:33:03,422 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:33:03,422 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:33:03,424 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:33:03,424 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:33:03,424 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:33:03,424 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:33:03,425 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:33:03,425 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:33:03,426 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:33:03,426 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 14:33:03,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:33:03,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:33:03,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:33:03,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:33:03,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:33:03,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:33:03,438 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:33:03,438 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:33:03,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:33:03,438 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:33:03,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:33:03,439 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:33:03,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:33:03,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:33:03,441 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:33:03,442 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:33:03,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:33:03,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:33:03,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:33:03,442 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:33:03,442 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:33:03,443 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:33:03,443 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_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 [2018-11-18 14:33:03,468 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:33:03,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:33:03,480 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:33:03,481 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:33:03,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:33:03,482 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:03,521 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/abf2f5829/0a4081d1edab4b63b25b4b6a1cbd70c6/FLAG45bbbacae [2018-11-18 14:33:03,932 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:33:03,933 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:03,939 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/abf2f5829/0a4081d1edab4b63b25b4b6a1cbd70c6/FLAG45bbbacae [2018-11-18 14:33:03,949 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/abf2f5829/0a4081d1edab4b63b25b4b6a1cbd70c6 [2018-11-18 14:33:03,951 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:33:03,952 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:33:03,952 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:33:03,953 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:33:03,956 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:33:03,956 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:03" (1/1) ... [2018-11-18 14:33:03,958 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@208aaab2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:03, skipping insertion in model container [2018-11-18 14:33:03,959 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:03" (1/1) ... [2018-11-18 14:33:03,966 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:33:03,986 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:33:04,142 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:33:04,146 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:33:04,183 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:33:04,243 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:33:04,243 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04 WrapperNode [2018-11-18 14:33:04,244 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:33:04,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:33:04,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:33:04,244 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:33:04,252 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,263 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,270 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:33:04,271 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:33:04,271 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:33:04,271 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:33:04,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,283 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,283 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,296 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,303 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,305 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... [2018-11-18 14:33:04,308 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:33:04,308 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:33:04,309 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:33:04,309 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:33:04,310 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:33:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 14:33:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:33:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:33:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 14:33:04,350 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 14:33:04,350 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 14:33:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:33:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:33:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:33:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 14:33:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 14:33:04,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 14:33:04,351 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:33:04,699 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:33:04,700 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:04 BoogieIcfgContainer [2018-11-18 14:33:04,700 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:33:04,700 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:33:04,700 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:33:04,702 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:33:04,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:33:03" (1/3) ... [2018-11-18 14:33:04,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bca7db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:04, skipping insertion in model container [2018-11-18 14:33:04,703 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:04" (2/3) ... [2018-11-18 14:33:04,703 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bca7db8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:04, skipping insertion in model container [2018-11-18 14:33:04,704 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:04" (3/3) ... [2018-11-18 14:33:04,705 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:04,712 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:33:04,718 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:33:04,728 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:33:04,752 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:33:04,752 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:33:04,752 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:33:04,752 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:33:04,753 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:33:04,753 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:33:04,753 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:33:04,753 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:33:04,766 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states. [2018-11-18 14:33:04,772 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:33:04,772 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:04,773 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:33:04,775 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:04,779 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:04,779 INFO L82 PathProgramCache]: Analyzing trace with hash 136997638, now seen corresponding path program 1 times [2018-11-18 14:33:04,781 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:33:04,813 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:33:04,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:04,814 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:33:04,814 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:33:04,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:04,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:04,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:04,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:33:04,896 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:33:04,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:33:04,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:33:04,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:33:04,909 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 2 states. [2018-11-18 14:33:04,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:04,930 INFO L93 Difference]: Finished difference Result 148 states and 218 transitions. [2018-11-18 14:33:04,930 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:33:04,931 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 14:33:04,932 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:04,938 INFO L225 Difference]: With dead ends: 148 [2018-11-18 14:33:04,939 INFO L226 Difference]: Without dead ends: 74 [2018-11-18 14:33:04,942 INFO L604 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 [2018-11-18 14:33:04,954 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2018-11-18 14:33:04,969 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2018-11-18 14:33:04,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2018-11-18 14:33:04,971 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 91 transitions. [2018-11-18 14:33:04,973 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 91 transitions. Word has length 21 [2018-11-18 14:33:04,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:04,973 INFO L480 AbstractCegarLoop]: Abstraction has 74 states and 91 transitions. [2018-11-18 14:33:04,973 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:33:04,973 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 91 transitions. [2018-11-18 14:33:04,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:33:04,974 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:04,974 INFO L375 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] [2018-11-18 14:33:04,974 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:04,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:04,975 INFO L82 PathProgramCache]: Analyzing trace with hash 762446760, now seen corresponding path program 1 times [2018-11-18 14:33:04,975 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:33:04,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:33:04,976 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:04,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:33:04,976 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:33:05,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:33:05,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 14:33:05,046 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 14:33:05,080 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:33:05 BoogieIcfgContainer [2018-11-18 14:33:05,080 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:33:05,080 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:33:05,080 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:33:05,080 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:33:05,081 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:04" (3/4) ... [2018-11-18 14:33:05,083 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 14:33:05,083 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:33:05,084 INFO L168 Benchmark]: Toolchain (without parser) took 1132.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -90.2 MB). Peak memory consumption was 38.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:05,085 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:05,086 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:05,086 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.27 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:05,087 INFO L168 Benchmark]: Boogie Preprocessor took 37.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:05,087 INFO L168 Benchmark]: RCFGBuilder took 391.39 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. [2018-11-18 14:33:05,087 INFO L168 Benchmark]: TraceAbstraction took 379.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:05,088 INFO L168 Benchmark]: Witness Printer took 3.50 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:05,091 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 291.51 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 962.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 31.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 26.27 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: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 391.39 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. * TraceAbstraction took 379.60 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 11.5 GB. * Witness Printer took 3.50 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)=27, \old(huge_floor)=11, \old(one_asin)=14, \old(one_sqrt)=12, \old(pio2_hi_asin)=13, \old(pio2_lo_asin)=22, \old(pio4_hi_asin)=15, \old(pS0_asin)=21, \old(pS1_asin)=16, \old(pS2_asin)=7, \old(pS3_asin)=20, \old(pS4_asin)=25, \old(pS5_asin)=18, \old(qS1_asin)=28, \old(qS2_asin)=26, \old(qS3_asin)=5, \old(qS4_asin)=23, \old(tiny_sqrt)=24, 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)=17, 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)=17, 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=17] [L157] FCALL ieee_float_shape_type gf_u; [L158] FCALL gf_u.value = (x) [L159] EXPR, FCALL gf_u.word [L159] (hx) = gf_u.word [L160] COND FALSE !(0) VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, 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=17] [L161] ix = hx & 0x7fffffff VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, 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=17] [L162] COND TRUE ix == 0x3f800000 [L164] RET return x * pio2_hi_asin + x * pio2_lo_asin; VAL [\old(x)=17, huge_asin=1000000000000000000000000000000, huge_floor=1000000000000000000000000000000, hx=3, 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=17] [L229] EXPR __ieee754_asinf(x) VAL [__ieee754_asinf(x)=10, 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=17] [L229] float res = __ieee754_asinf(x); [L232] CALL, EXPR isnan_float(res) VAL [\old(x)=10, 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] RET return x != x; VAL [\old(x)=10, \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=10] [L232] 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=10, tiny_sqrt=1/1000000000000000000000000000000, x=17] [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=10, tiny_sqrt=1/1000000000000000000000000000000, x=17] - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 78 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 95 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=78occurred 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 0.1.23-5842f4b [2018-11-18 14:33:06,547 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:33:06,548 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:33:06,556 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:33:06,556 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:33:06,557 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:33:06,558 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:33:06,559 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:33:06,560 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:33:06,561 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:33:06,562 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:33:06,562 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:33:06,562 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:33:06,563 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:33:06,564 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:33:06,565 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:33:06,565 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:33:06,567 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:33:06,568 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:33:06,569 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:33:06,570 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:33:06,571 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:33:06,572 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:33:06,572 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:33:06,572 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:33:06,573 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:33:06,573 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:33:06,574 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:33:06,574 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:33:06,575 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:33:06,575 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:33:06,576 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:33:06,576 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:33:06,576 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:33:06,577 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:33:06,577 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:33:06,577 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 14:33:06,588 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:33:06,589 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:33:06,589 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:33:06,589 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:33:06,589 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:33:06,590 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:33:06,590 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:33:06,590 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:33:06,590 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:33:06,590 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:33:06,590 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:33:06,591 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 14:33:06,591 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 14:33:06,591 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:33:06,591 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:33:06,591 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:33:06,592 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:33:06,592 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 14:33:06,592 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 14:33:06,592 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 14:33:06,592 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:33:06,593 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:33:06,593 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:33:06,593 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 14:33:06,594 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:33:06,594 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 14:33:06,594 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 14:33:06,594 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_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 [2018-11-18 14:33:06,623 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:33:06,632 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:33:06,635 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:33:06,636 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:33:06,636 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:33:06,636 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:06,676 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/ce71e7ca7/3469e78ae662461595dc5551247c877d/FLAGb23f8cb76 [2018-11-18 14:33:07,014 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:33:07,014 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/sv-benchmarks/c/float-newlib/float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:07,019 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/ce71e7ca7/3469e78ae662461595dc5551247c877d/FLAGb23f8cb76 [2018-11-18 14:33:07,433 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/data/ce71e7ca7/3469e78ae662461595dc5551247c877d [2018-11-18 14:33:07,435 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:33:07,436 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:33:07,436 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:33:07,437 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:33:07,439 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:33:07,439 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,442 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd0158d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07, skipping insertion in model container [2018-11-18 14:33:07,442 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,448 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:33:07,468 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:33:07,633 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:33:07,639 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:33:07,682 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:33:07,702 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:33:07,702 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07 WrapperNode [2018-11-18 14:33:07,702 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:33:07,703 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:33:07,703 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:33:07,703 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:33:07,708 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,719 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,727 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:33:07,727 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:33:07,727 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:33:07,727 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:33:07,734 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,734 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,739 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,739 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,756 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,803 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,806 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... [2018-11-18 14:33:07,809 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:33:07,810 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:33:07,810 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:33:07,810 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:33:07,811 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:33:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:33:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:33:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_asinf [2018-11-18 14:33:07,847 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_asinf [2018-11-18 14:33:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 14:33:07,847 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 14:33:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 14:33:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:33:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:33:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure fabs_float [2018-11-18 14:33:07,848 INFO L138 BoogieDeclarations]: Found implementation of procedure fabs_float [2018-11-18 14:33:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 14:33:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 14:33:07,848 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:33:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:33:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 14:33:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 14:33:07,849 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 14:33:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 14:33:07,849 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 14:33:17,852 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:33:17,926 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-18 14:33:18,385 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:33:18,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:18 BoogieIcfgContainer [2018-11-18 14:33:18,386 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:33:18,386 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:33:18,387 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:33:18,388 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:33:18,388 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:33:07" (1/3) ... [2018-11-18 14:33:18,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca9b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:18, skipping insertion in model container [2018-11-18 14:33:18,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:33:07" (2/3) ... [2018-11-18 14:33:18,389 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17ca9b1c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:33:18, skipping insertion in model container [2018-11-18 14:33:18,389 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:18" (3/3) ... [2018-11-18 14:33:18,390 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0250b_true-unreach-call.c [2018-11-18 14:33:18,396 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:33:18,401 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 14:33:18,411 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 14:33:18,434 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 14:33:18,434 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:33:18,434 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:33:18,435 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:33:18,435 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:33:18,435 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:33:18,435 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:33:18,435 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:33:18,435 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:33:18,447 INFO L276 IsEmpty]: Start isEmpty. Operand 77 states. [2018-11-18 14:33:18,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 14:33:18,452 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:18,452 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:33:18,454 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:18,457 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:18,457 INFO L82 PathProgramCache]: Analyzing trace with hash -600192542, now seen corresponding path program 1 times [2018-11-18 14:33:18,460 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:33:18,460 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-18 14:33:18,466 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:18,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:18,685 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:33:18,696 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:18,697 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:33:18,708 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:18,708 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:33:18,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 14:33:18,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 14:33:18,719 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 14:33:18,721 INFO L87 Difference]: Start difference. First operand 77 states. Second operand 2 states. [2018-11-18 14:33:18,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:18,742 INFO L93 Difference]: Finished difference Result 146 states and 216 transitions. [2018-11-18 14:33:18,742 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 14:33:18,743 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 14:33:18,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:18,750 INFO L225 Difference]: With dead ends: 146 [2018-11-18 14:33:18,750 INFO L226 Difference]: Without dead ends: 73 [2018-11-18 14:33:18,752 INFO L604 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 [2018-11-18 14:33:18,763 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2018-11-18 14:33:18,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2018-11-18 14:33:18,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 14:33:18,780 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 90 transitions. [2018-11-18 14:33:18,781 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 90 transitions. Word has length 20 [2018-11-18 14:33:18,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:18,782 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 90 transitions. [2018-11-18 14:33:18,782 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 14:33:18,782 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 90 transitions. [2018-11-18 14:33:18,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 14:33:18,782 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:18,782 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:33:18,783 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:18,783 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:18,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1346966301, now seen corresponding path program 1 times [2018-11-18 14:33:18,783 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:33:18,783 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 [2018-11-18 14:33:18,793 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:18,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:18,984 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:33:19,077 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:19,077 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:33:19,088 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:19,088 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:33:19,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:33:19,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:33:19,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:33:19,090 INFO L87 Difference]: Start difference. First operand 73 states and 90 transitions. Second operand 7 states. [2018-11-18 14:33:25,122 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:25,122 INFO L93 Difference]: Finished difference Result 86 states and 103 transitions. [2018-11-18 14:33:25,123 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-11-18 14:33:25,123 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 21 [2018-11-18 14:33:25,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:25,125 INFO L225 Difference]: With dead ends: 86 [2018-11-18 14:33:25,126 INFO L226 Difference]: Without dead ends: 76 [2018-11-18 14:33:25,126 INFO L604 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 [2018-11-18 14:33:25,127 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2018-11-18 14:33:25,132 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 73. [2018-11-18 14:33:25,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 14:33:25,133 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 89 transitions. [2018-11-18 14:33:25,133 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 89 transitions. Word has length 21 [2018-11-18 14:33:25,133 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:25,133 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 89 transitions. [2018-11-18 14:33:25,133 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:33:25,133 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 89 transitions. [2018-11-18 14:33:25,134 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 14:33:25,134 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:25,134 INFO L375 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] [2018-11-18 14:33:25,134 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:25,134 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:25,134 INFO L82 PathProgramCache]: Analyzing trace with hash 622695684, now seen corresponding path program 1 times [2018-11-18 14:33:25,135 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:33:25,135 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 [2018-11-18 14:33:25,137 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:25,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:25,340 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:33:27,490 WARN L180 SmtUtils]: Spent 632.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 14:33:29,795 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:29,795 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:33:29,809 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:29,810 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 14:33:29,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 14:33:29,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 14:33:29,810 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 14:33:29,811 INFO L87 Difference]: Start difference. First operand 73 states and 89 transitions. Second operand 9 states. [2018-11-18 14:33:33,611 WARN L180 SmtUtils]: Spent 1.14 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 14:33:40,817 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:40,817 INFO L93 Difference]: Finished difference Result 82 states and 98 transitions. [2018-11-18 14:33:40,818 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 14:33:40,818 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 22 [2018-11-18 14:33:40,818 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:40,819 INFO L225 Difference]: With dead ends: 82 [2018-11-18 14:33:40,819 INFO L226 Difference]: Without dead ends: 75 [2018-11-18 14:33:40,819 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.3s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 14:33:40,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 75 states. [2018-11-18 14:33:40,826 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 75 to 73. [2018-11-18 14:33:40,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 73 states. [2018-11-18 14:33:40,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 88 transitions. [2018-11-18 14:33:40,827 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 88 transitions. Word has length 22 [2018-11-18 14:33:40,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:40,828 INFO L480 AbstractCegarLoop]: Abstraction has 73 states and 88 transitions. [2018-11-18 14:33:40,828 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 14:33:40,828 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 88 transitions. [2018-11-18 14:33:40,828 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-18 14:33:40,828 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:40,828 INFO L375 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] [2018-11-18 14:33:40,829 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:40,829 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:40,829 INFO L82 PathProgramCache]: Analyzing trace with hash 50187002, now seen corresponding path program 1 times [2018-11-18 14:33:40,829 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:33:40,829 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/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 [2018-11-18 14:33:40,832 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:41,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:41,866 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:33:41,943 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:41,943 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:33:41,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:41,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:33:41,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:33:41,966 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:33:41,967 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:33:41,967 INFO L87 Difference]: Start difference. First operand 73 states and 88 transitions. Second operand 7 states. [2018-11-18 14:33:46,957 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:46,957 INFO L93 Difference]: Finished difference Result 86 states and 101 transitions. [2018-11-18 14:33:46,958 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:33:46,958 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 24 [2018-11-18 14:33:46,959 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:46,959 INFO L225 Difference]: With dead ends: 86 [2018-11-18 14:33:46,959 INFO L226 Difference]: Without dead ends: 68 [2018-11-18 14:33:46,960 INFO L604 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 [2018-11-18 14:33:46,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2018-11-18 14:33:46,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2018-11-18 14:33:46,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2018-11-18 14:33:46,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 80 transitions. [2018-11-18 14:33:46,965 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 80 transitions. Word has length 24 [2018-11-18 14:33:46,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:46,965 INFO L480 AbstractCegarLoop]: Abstraction has 68 states and 80 transitions. [2018-11-18 14:33:46,965 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:33:46,965 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 80 transitions. [2018-11-18 14:33:46,966 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2018-11-18 14:33:46,967 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:33:46,967 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:33:46,967 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 14:33:46,968 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:33:46,968 INFO L82 PathProgramCache]: Analyzing trace with hash 836264115, now seen corresponding path program 1 times [2018-11-18 14:33:46,968 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 14:33:46,968 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-11-18 14:33:46,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:33:48,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:33:48,187 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 14:33:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:33:48,282 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 14:33:48,302 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:33:48,302 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 14:33:48,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 14:33:48,303 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 14:33:48,303 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 14:33:48,303 INFO L87 Difference]: Start difference. First operand 68 states and 80 transitions. Second operand 7 states. [2018-11-18 14:33:50,776 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:33:50,776 INFO L93 Difference]: Finished difference Result 68 states and 80 transitions. [2018-11-18 14:33:50,777 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 14:33:50,777 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 44 [2018-11-18 14:33:50,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:33:50,777 INFO L225 Difference]: With dead ends: 68 [2018-11-18 14:33:50,777 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:33:50,778 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2018-11-18 14:33:50,778 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:33:50,778 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:33:50,778 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:33:50,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:33:50,778 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 44 [2018-11-18 14:33:50,779 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:33:50,779 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:33:50,779 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 14:33:50,779 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:33:50,779 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:33:50,782 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:33:50,957 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 58) no Hoare annotation was computed. [2018-11-18 14:33:50,957 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 58) the Hoare annotation is: true [2018-11-18 14:33:50,957 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 58) no Hoare annotation was computed. [2018-11-18 14:33:50,957 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:33:50,957 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:33:50,957 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:33:50,957 INFO L425 ceAbstractionStarter]: For program point L130-1(lines 130 134) no Hoare annotation was computed. [2018-11-18 14:33:50,957 INFO L428 ceAbstractionStarter]: At program point L130-3(lines 130 134) the Hoare annotation is: true [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point fabs_floatEXIT(lines 128 141) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point L135(lines 135 139) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point L135-2(lines 128 141) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point L135-3(lines 135 139) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point fabs_floatFINAL(lines 128 141) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L428 ceAbstractionStarter]: At program point fabs_floatENTRY(lines 128 141) the Hoare annotation is: true [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:33:50,958 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:33:50,958 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:33:50,958 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:33:50,959 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 221 238) the Hoare annotation is: true [2018-11-18 14:33:50,959 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 221 238) no Hoare annotation was computed. [2018-11-18 14:33:50,959 INFO L425 ceAbstractionStarter]: For program point L233(line 233) no Hoare annotation was computed. [2018-11-18 14:33:50,959 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 221 238) no Hoare annotation was computed. [2018-11-18 14:33:50,959 INFO L421 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))) [2018-11-18 14:33:50,959 INFO L425 ceAbstractionStarter]: For program point L232-1(lines 232 235) no Hoare annotation was computed. [2018-11-18 14:33:50,959 INFO L421 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))) [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 233) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L229-1(line 229) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L421 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|)))) [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L192-1(line 192) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L184(line 184) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L168(lines 168 181) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L193(lines 193 214) no Hoare annotation was computed. [2018-11-18 14:33:50,960 INFO L425 ceAbstractionStarter]: For program point L193-2(lines 153 219) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point L156-1(lines 156 160) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L421 ceAbstractionStarter]: At program point L156-3(lines 156 160) the Hoare annotation is: (= |__ieee754_asinf_#in~x| __ieee754_asinf_~x) [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point L156-4(lines 156 160) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point L169(lines 169 170) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point L165(lines 165 182) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L428 ceAbstractionStarter]: At program point __ieee754_asinfENTRY(lines 153 219) the Hoare annotation is: true [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point L199-1(lines 199 203) no Hoare annotation was computed. [2018-11-18 14:33:50,961 INFO L421 ceAbstractionStarter]: At program point L199-3(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|)))) [2018-11-18 14:33:50,961 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfFINAL(lines 153 219) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L162(lines 162 182) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point __ieee754_asinfEXIT(lines 153 219) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L204(lines 204 208) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L204-2(lines 196 214) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L204-3(lines 204 208) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L167(lines 167 182) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L421 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|)))) [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L77(lines 77 78) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L425 ceAbstractionStarter]: For program point L98-1(lines 98 107) no Hoare annotation was computed. [2018-11-18 14:33:50,962 INFO L428 ceAbstractionStarter]: At program point L98-3(lines 98 107) the Hoare annotation is: true [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L98-4(lines 62 127) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L90(lines 90 91) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L90-2(lines 90 91) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 62 127) the Hoare annotation is: true [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L111(lines 111 117) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L74(lines 74 75) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 62 127) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 62 127) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L83(lines 83 87) no Hoare annotation was computed. [2018-11-18 14:33:50,963 INFO L425 ceAbstractionStarter]: For program point L83-2(lines 83 87) no Hoare annotation was computed. [2018-11-18 14:33:50,964 INFO L425 ceAbstractionStarter]: For program point L79(lines 79 80) no Hoare annotation was computed. [2018-11-18 14:33:50,964 INFO L425 ceAbstractionStarter]: For program point L100(lines 100 104) no Hoare annotation was computed. [2018-11-18 14:33:50,964 INFO L425 ceAbstractionStarter]: For program point L67-1(lines 67 71) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L100-2(lines 100 104) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L428 ceAbstractionStarter]: At program point L67-3(lines 67 71) the Hoare annotation is: true [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L67-4(lines 67 71) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L121-1(lines 121 125) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L428 ceAbstractionStarter]: At program point L121-3(lines 121 125) the Hoare annotation is: true [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L121-4(lines 121 125) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L84-1(lines 84 85) no Hoare annotation was computed. [2018-11-18 14:33:50,965 INFO L425 ceAbstractionStarter]: For program point L84-3(lines 84 85) no Hoare annotation was computed. [2018-11-18 14:33:50,966 INFO L425 ceAbstractionStarter]: For program point L113(lines 113 116) no Hoare annotation was computed. [2018-11-18 14:33:50,966 INFO L428 ceAbstractionStarter]: At program point L84-4(lines 84 85) the Hoare annotation is: true [2018-11-18 14:33:50,966 INFO L425 ceAbstractionStarter]: For program point L84-5(lines 84 85) no Hoare annotation was computed. [2018-11-18 14:33:50,966 INFO L425 ceAbstractionStarter]: For program point L109(lines 109 118) no Hoare annotation was computed. [2018-11-18 14:33:50,971 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,972 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,972 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,972 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,973 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,973 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,973 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,973 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,977 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,978 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:50,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:33:50 BoogieIcfgContainer [2018-11-18 14:33:50,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:33:50,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:33:50,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:33:50,981 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:33:50,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:33:18" (3/4) ... [2018-11-18 14:33:50,984 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:33:50,988 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 14:33:50,988 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:33:50,988 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure fabs_float [2018-11-18 14:33:50,989 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:33:50,989 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_asinf [2018-11-18 14:33:50,989 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 14:33:50,993 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 54 nodes and edges [2018-11-18 14:33:50,993 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-11-18 14:33:50,993 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-18 14:33:50,994 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:33:51,011 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 14:33:51,012 WARN L220 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)) [2018-11-18 14:33:51,042 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_49e8053b-87e3-41ac-8ca9-e3bea96aaa97/bin-2019/utaipan/witness.graphml [2018-11-18 14:33:51,043 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:33:51,044 INFO L168 Benchmark]: Toolchain (without parser) took 43608.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 949.7 MB in the beginning and 891.9 MB in the end (delta: 57.9 MB). Peak memory consumption was 204.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:51,045 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:51,045 INFO L168 Benchmark]: CACSL2BoogieTranslator took 265.91 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 MB in the end (delta: 21.5 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:51,045 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.26 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:51,045 INFO L168 Benchmark]: Boogie Preprocessor took 82.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -212.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:51,046 INFO L168 Benchmark]: RCFGBuilder took 10576.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:51,046 INFO L168 Benchmark]: TraceAbstraction took 32594.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.9 MB in the end (delta: 211.2 MB). Peak memory consumption was 211.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:33:51,046 INFO L168 Benchmark]: Witness Printer took 61.65 ms. Allocated memory is still 1.2 GB. Free memory is still 891.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:33:51,048 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 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 265.91 ms. Allocated memory is still 1.0 GB. Free memory was 949.7 MB in the beginning and 928.3 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 24.26 ms. Allocated memory is still 1.0 GB. Free memory is still 928.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 82.36 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 928.3 MB in the beginning and 1.1 GB in the end (delta: -212.7 MB). Peak memory consumption was 16.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 10576.16 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.9 MB). Peak memory consumption was 37.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 32594.56 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 891.9 MB in the end (delta: 211.2 MB). Peak memory consumption was 211.2 MB. Max. memory is 11.5 GB. * Witness Printer took 61.65 ms. Allocated memory is still 1.2 GB. Free memory is still 891.9 MB. There was no memory consumed. 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: 130]: 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 [2018-11-18 14:33:51,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,052 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,052 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,052 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,059 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,059 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,060 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,060 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,060 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,060 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_asinf_~hx~1,QUANTIFIED] [2018-11-18 14:33:51,061 WARN L387 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 - InvariantResult [Line: 98]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 121]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 7 procedures, 77 locations, 1 error locations. SAFE Result, 32.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 24.5s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 390 SDtfs, 198 SDslu, 1473 SDs, 0 SdLazy, 186 SolverSat, 23 SolverUnsat, 6 SolverUnknown, 0 SolverNotchecked, 18.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 139 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=77occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 5 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 19 LocationsWithAnnotation, 30 PreInvPairs, 40 NumberOfFragments, 209 HoareAnnotationTreeSize, 30 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 19 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 2.5s SatisfiabilityAnalysisTime, 4.9s InterpolantComputationTime, 131 NumberOfCodeBlocks, 131 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 126 ConstructedInterpolants, 20 QuantifiedInterpolants, 19548 SizeOfPredicates, 16 NumberOfNonLiveVariables, 594 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...