./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0740_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_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 ............................................................................................................................................................................................................................................................................................................................. 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_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 10:19:49,447 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:19:49,449 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:19:49,457 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:19:49,457 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:19:49,458 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:19:49,459 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:19:49,460 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:19:49,461 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:19:49,462 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:19:49,462 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:19:49,463 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:19:49,463 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:19:49,464 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:19:49,465 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:19:49,465 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:19:49,466 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:19:49,467 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:19:49,469 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:19:49,470 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:19:49,470 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:19:49,471 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:19:49,473 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:19:49,473 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:19:49,473 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:19:49,474 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:19:49,474 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:19:49,475 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:19:49,476 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:19:49,476 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:19:49,476 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:19:49,477 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:19:49,477 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:19:49,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:19:49,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:19:49,478 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:19:49,479 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-18 10:19:49,489 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:19:49,489 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:19:49,489 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:19:49,490 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:19:49,490 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:19:49,490 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:19:49,490 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:19:49,490 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:19:49,490 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:19:49,491 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:19:49,491 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:19:49,491 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:19:49,491 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:19:49,491 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:19:49,492 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:19:49,494 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:19:49,494 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:19:49,494 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:19:49,494 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:19:49,494 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:19:49,495 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:19:49,495 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:19:49,495 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:19:49,496 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:19:49,496 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:19:49,496 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:19:49,496 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:19:49,496 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_71726554-9f62-40b5-9eef-928283680d6d/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 -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2018-11-18 10:19:49,521 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:19:49,529 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:19:49,531 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:19:49,532 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:19:49,532 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:19:49,533 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:49,567 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/de0aea11f/1272c6adb0b940b791f5f9c529e135e4/FLAG6ad2d7468 [2018-11-18 10:19:49,957 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:19:49,958 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:49,962 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/de0aea11f/1272c6adb0b940b791f5f9c529e135e4/FLAG6ad2d7468 [2018-11-18 10:19:49,970 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/de0aea11f/1272c6adb0b940b791f5f9c529e135e4 [2018-11-18 10:19:49,972 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:19:49,972 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:19:49,973 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:49,973 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:19:49,975 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:19:49,976 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:49" (1/1) ... [2018-11-18 10:19:49,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63274aa8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:49, skipping insertion in model container [2018-11-18 10:19:49,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:49" (1/1) ... [2018-11-18 10:19:49,983 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:19:49,996 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:19:50,114 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:50,116 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:19:50,136 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:50,150 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:19:50,151 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50 WrapperNode [2018-11-18 10:19:50,151 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:50,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:19:50,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:19:50,151 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:19:50,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,170 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:19:50,171 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:19:50,171 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:19:50,171 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:19:50,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,177 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,179 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,180 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,187 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,228 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,229 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... [2018-11-18 10:19:50,231 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:19:50,231 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:19:50,232 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:19:50,232 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:19:50,232 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 10:19:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:19:50,268 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:19:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-18 10:19:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-18 10:19:50,268 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:19:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:19:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:19:50,269 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-18 10:19:50,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:19:50,270 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:19:50,270 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:19:50,467 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:19:50,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:50 BoogieIcfgContainer [2018-11-18 10:19:50,467 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:19:50,468 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:19:50,468 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:19:50,471 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:19:50,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:19:49" (1/3) ... [2018-11-18 10:19:50,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451b6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:50, skipping insertion in model container [2018-11-18 10:19:50,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:50" (2/3) ... [2018-11-18 10:19:50,472 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3451b6cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:50, skipping insertion in model container [2018-11-18 10:19:50,472 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:50" (3/3) ... [2018-11-18 10:19:50,474 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:50,482 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:19:50,489 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:19:50,503 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:19:50,530 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:19:50,530 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:19:50,530 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:19:50,530 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:19:50,530 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:19:50,531 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:19:50,531 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:19:50,531 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:19:50,546 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-11-18 10:19:50,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:19:50,551 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:50,552 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 10:19:50,554 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:50,558 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:50,558 INFO L82 PathProgramCache]: Analyzing trace with hash -345588552, now seen corresponding path program 1 times [2018-11-18 10:19:50,560 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:19:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:50,600 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:50,600 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:50,600 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:19:50,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:19:50,667 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 10:19:50,669 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:19:50,669 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:19:50,669 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:19:50,673 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:19:50,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:19:50,684 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:19:50,686 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-11-18 10:19:50,704 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:19:50,704 INFO L93 Difference]: Finished difference Result 88 states and 122 transitions. [2018-11-18 10:19:50,704 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:19:50,705 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-11-18 10:19:50,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:19:50,714 INFO L225 Difference]: With dead ends: 88 [2018-11-18 10:19:50,714 INFO L226 Difference]: Without dead ends: 44 [2018-11-18 10:19:50,717 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 10:19:50,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-18 10:19:50,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-11-18 10:19:50,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-11-18 10:19:50,747 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-11-18 10:19:50,748 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 21 [2018-11-18 10:19:50,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:19:50,749 INFO L480 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-11-18 10:19:50,749 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:19:50,749 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-11-18 10:19:50,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:19:50,750 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:50,750 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 10:19:50,750 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:50,750 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:50,751 INFO L82 PathProgramCache]: Analyzing trace with hash -1450739581, now seen corresponding path program 1 times [2018-11-18 10:19:50,751 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:19:50,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:50,752 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:50,752 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:19:50,752 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:19:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:19:50,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 10:19:50,813 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 10:19:50,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:19:50 BoogieIcfgContainer [2018-11-18 10:19:50,835 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:19:50,835 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:19:50,835 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:19:50,835 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:19:50,836 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:50" (3/4) ... [2018-11-18 10:19:50,838 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-18 10:19:50,838 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:19:50,839 INFO L168 Benchmark]: Toolchain (without parser) took 866.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 959.1 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). Peak memory consumption was 11.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,840 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:19:50,840 INFO L168 Benchmark]: CACSL2BoogieTranslator took 177.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,841 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,841 INFO L168 Benchmark]: Boogie Preprocessor took 60.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,841 INFO L168 Benchmark]: RCFGBuilder took 235.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,842 INFO L168 Benchmark]: TraceAbstraction took 367.27 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:19:50,842 INFO L168 Benchmark]: Witness Printer took 2.97 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 10:19:50,844 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 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 177.90 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 945.7 MB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 19.30 ms. Allocated memory is still 1.0 GB. Free memory was 945.7 MB in the beginning and 940.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.8 MB). Free memory was 940.3 MB in the beginning and 1.1 GB in the end (delta: -203.1 MB). Peak memory consumption was 17.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 235.84 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.9 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 367.27 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: 25.1 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * Witness Printer took 2.97 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: 97]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [\old(one_sqrt)=6442450949, \old(tiny_sqrt)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = -1.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L93] CALL, EXPR __ieee754_sqrtf(x) VAL [\old(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [\old(x)=6442450947, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L23] FCALL ieee_float_shape_type gf_u; [L24] FCALL gf_u.value = (x) [L25] EXPR, FCALL gf_u.word [L25] (ix) = gf_u.word [L26] COND FALSE !(0) VAL [\old(x)=6442450947, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L27] hx = ix & 0x7fffffff VAL [\old(x)=6442450947, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] RET return x * x + x; VAL [\old(x)=6442450947, hx=2139095040, ix=-2147483648, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L93] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L93] float res = __ieee754_sqrtf(x); [L96] CALL, EXPR isnan_float(res) VAL [\old(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L13] RET return x != x; VAL [\old(x)=6442450948, \result=0, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450948] [L96] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L96] COND TRUE !isnan_float(res) [L97] __VERIFIER_error() VAL [one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 48 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 2 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 58 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 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 10:19:52,266 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:19:52,267 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:19:52,275 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:19:52,276 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:19:52,276 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:19:52,277 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:19:52,278 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:19:52,279 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:19:52,280 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:19:52,280 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:19:52,280 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:19:52,281 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:19:52,282 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:19:52,283 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:19:52,283 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:19:52,284 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:19:52,285 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:19:52,287 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:19:52,288 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:19:52,288 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:19:52,290 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:19:52,291 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:19:52,291 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:19:52,291 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:19:52,292 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:19:52,293 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:19:52,294 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:19:52,294 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:19:52,295 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:19:52,295 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:19:52,295 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:19:52,296 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:19:52,296 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:19:52,296 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:19:52,298 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:19:52,298 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-11-18 10:19:52,308 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:19:52,308 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:19:52,309 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:19:52,309 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:19:52,309 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:19:52,309 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:19:52,309 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:19:52,310 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:19:52,310 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:19:52,310 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:19:52,310 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:19:52,310 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-18 10:19:52,311 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:19:52,312 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:19:52,312 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:19:52,314 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:19:52,315 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-11-18 10:19:52,315 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-18 10:19:52,316 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_71726554-9f62-40b5-9eef-928283680d6d/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 -> 1ba5abe06d07a4712bf40ef71e353712c0bd3c97 [2018-11-18 10:19:52,345 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:19:52,354 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:19:52,357 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:19:52,358 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:19:52,358 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:19:52,359 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:52,395 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/ef98f27d4/db39e634140a410aad6d8e2ab55db643/FLAG77bf5db3e [2018-11-18 10:19:52,799 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:19:52,799 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/sv-benchmarks/c/float-newlib/float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:52,805 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/ef98f27d4/db39e634140a410aad6d8e2ab55db643/FLAG77bf5db3e [2018-11-18 10:19:52,814 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/data/ef98f27d4/db39e634140a410aad6d8e2ab55db643 [2018-11-18 10:19:52,816 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:19:52,817 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:19:52,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:52,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:19:52,820 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:19:52,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:52" (1/1) ... [2018-11-18 10:19:52,822 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1c7639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:52, skipping insertion in model container [2018-11-18 10:19:52,822 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:19:52" (1/1) ... [2018-11-18 10:19:52,828 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:19:52,844 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:19:52,970 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:52,974 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:19:52,996 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:19:53,012 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:19:53,012 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53 WrapperNode [2018-11-18 10:19:53,012 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:19:53,013 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:19:53,013 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:19:53,013 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:19:53,018 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,025 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,031 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:19:53,032 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:19:53,032 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:19:53,032 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:19:53,039 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,040 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,042 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,053 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,058 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,060 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... [2018-11-18 10:19:53,062 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:19:53,063 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:19:53,063 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:19:53,063 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:19:53,064 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 10:19:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:19:53,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:19:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-18 10:19:53,142 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-11-18 10:19:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-11-18 10:19:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:19:53,143 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:19:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-18 10:19:53,143 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-18 10:19:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:19:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:19:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-18 10:19:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-18 10:19:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-18 10:19:53,144 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-11-18 10:19:53,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-11-18 10:19:53,789 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:19:53,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:53 BoogieIcfgContainer [2018-11-18 10:19:53,789 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:19:53,790 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:19:53,790 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:19:53,792 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:19:53,792 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:19:52" (1/3) ... [2018-11-18 10:19:53,792 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b58d02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:53, skipping insertion in model container [2018-11-18 10:19:53,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:19:53" (2/3) ... [2018-11-18 10:19:53,793 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5b58d02e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:19:53, skipping insertion in model container [2018-11-18 10:19:53,793 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:53" (3/3) ... [2018-11-18 10:19:53,794 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0740_true-unreach-call.c [2018-11-18 10:19:53,800 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:19:53,805 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-18 10:19:53,813 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-18 10:19:53,833 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-18 10:19:53,834 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:19:53,834 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:19:53,834 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:19:53,834 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:19:53,834 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:19:53,834 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:19:53,834 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:19:53,834 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:19:53,846 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-11-18 10:19:53,850 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-11-18 10:19:53,850 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:53,851 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 10:19:53,852 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:53,855 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:53,856 INFO L82 PathProgramCache]: Analyzing trace with hash -655235433, now seen corresponding path program 1 times [2018-11-18 10:19:53,858 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:19:53,858 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 10:19:53,862 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:53,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:19:53,968 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:19:53,983 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 10:19:53,983 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:19:53,994 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:19:53,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:19:53,997 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-18 10:19:54,004 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-18 10:19:54,004 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-18 10:19:54,006 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-11-18 10:19:54,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:19:54,019 INFO L93 Difference]: Finished difference Result 86 states and 120 transitions. [2018-11-18 10:19:54,019 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-18 10:19:54,020 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-11-18 10:19:54,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:19:54,029 INFO L225 Difference]: With dead ends: 86 [2018-11-18 10:19:54,029 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 10:19:54,031 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 10:19:54,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 10:19:54,058 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-18 10:19:54,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 10:19:54,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-11-18 10:19:54,061 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 20 [2018-11-18 10:19:54,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:19:54,062 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-11-18 10:19:54,062 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-18 10:19:54,062 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-11-18 10:19:54,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-11-18 10:19:54,062 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:19:54,063 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 10:19:54,063 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:19:54,063 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:19:54,063 INFO L82 PathProgramCache]: Analyzing trace with hash 23230409, now seen corresponding path program 1 times [2018-11-18 10:19:54,063 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:19:54,064 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 10:19:54,075 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:19:54,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:19:54,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:19:55,490 WARN L180 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-11-18 10:19:57,009 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 10:19:57,009 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:19:57,022 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:19:57,022 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-11-18 10:19:57,023 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-11-18 10:19:57,024 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-11-18 10:19:57,024 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-11-18 10:19:57,024 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 9 states. [2018-11-18 10:19:59,375 WARN L180 SmtUtils]: Spent 1.05 s on a formula simplification that was a NOOP. DAG size: 9 [2018-11-18 10:20:02,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:20:02,356 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-11-18 10:20:02,357 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-18 10:20:02,357 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-11-18 10:20:02,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:20:02,358 INFO L225 Difference]: With dead ends: 50 [2018-11-18 10:20:02,358 INFO L226 Difference]: Without dead ends: 43 [2018-11-18 10:20:02,359 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-11-18 10:20:02,359 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-11-18 10:20:02,366 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-11-18 10:20:02,367 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-11-18 10:20:02,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-11-18 10:20:02,368 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 21 [2018-11-18 10:20:02,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:20:02,368 INFO L480 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-11-18 10:20:02,368 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-11-18 10:20:02,369 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-11-18 10:20:02,369 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-18 10:20:02,369 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:20:02,369 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 10:20:02,370 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-18 10:20:02,370 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:20:02,370 INFO L82 PathProgramCache]: Analyzing trace with hash -1375817575, now seen corresponding path program 1 times [2018-11-18 10:20:02,370 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-18 10:20:02,371 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/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 10:20:02,375 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:20:02,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:20:02,405 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 10:20:02,491 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 10:20:02,491 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-18 10:20:02,501 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:20:02,501 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-18 10:20:02,501 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-18 10:20:02,501 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-18 10:20:02,501 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-18 10:20:02,502 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 7 states. [2018-11-18 10:20:02,915 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:20:02,915 INFO L93 Difference]: Finished difference Result 49 states and 59 transitions. [2018-11-18 10:20:02,916 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-11-18 10:20:02,916 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-11-18 10:20:02,916 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:20:02,916 INFO L225 Difference]: With dead ends: 49 [2018-11-18 10:20:02,916 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:20:02,917 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-11-18 10:20:02,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:20:02,917 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:20:02,917 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:20:02,917 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:20:02,917 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-11-18 10:20:02,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:20:02,918 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:20:02,918 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-18 10:20:02,918 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:20:02,918 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:20:02,921 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:20:03,034 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-11-18 10:20:03,034 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-11-18 10:20:03,034 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-11-18 10:20:03,034 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:20:03,034 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:20:03,034 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:20:03,034 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:20:03,034 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:20:03,035 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point L97(line 97) no Hoare annotation was computed. [2018-11-18 10:20:03,035 INFO L421 ceAbstractionStarter]: At program point L96(line 96) the Hoare annotation is: (let ((.cse0 (fp.div roundNearestTiesToEven (fp.neg ((_ to_fp 8 24) roundNearestTiesToEven 1.0)) (_ +zero 8 24)))) (and (= main_~x~0 .cse0) (= (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0) main_~res~0))) [2018-11-18 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point L96-1(lines 96 99) no Hoare annotation was computed. [2018-11-18 10:20:03,035 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 84 102) the Hoare annotation is: true [2018-11-18 10:20:03,035 INFO L421 ceAbstractionStarter]: At program point L93(line 93) 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 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 84 102) no Hoare annotation was computed. [2018-11-18 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point L93-1(line 93) no Hoare annotation was computed. [2018-11-18 10:20:03,035 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 84 102) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 97) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L421 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-11-18 10:20:03,036 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L421 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:20:03,037 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:20:03,038 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-11-18 10:20:03,038 INFO L421 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) (_ bv2139095040 32)) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|))) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand (_ bv2147483647 32) __ieee754_sqrtf_~ix~0) __ieee754_sqrtf_~hx~0) (= (fp ((_ extract 31 31) __ieee754_sqrtf_~ix~0) ((_ extract 30 23) __ieee754_sqrtf_~ix~0) ((_ extract 22 0) __ieee754_sqrtf_~ix~0)) |__ieee754_sqrtf_#in~x|)))) [2018-11-18 10:20:03,038 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-11-18 10:20:03,043 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,043 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,044 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,044 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,044 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,044 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,044 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,045 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,050 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,051 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,052 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,053 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,053 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,053 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,053 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,053 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,054 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,055 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,056 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,057 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,057 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,057 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,057 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,058 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,058 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,058 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,058 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,058 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,059 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,060 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:20:03 BoogieIcfgContainer [2018-11-18 10:20:03,060 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:20:03,061 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:20:03,061 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:20:03,061 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:20:03,062 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:19:53" (3/4) ... [2018-11-18 10:20:03,064 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:20:03,070 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-11-18 10:20:03,070 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:20:03,070 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:20:03,071 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-11-18 10:20:03,074 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 24 nodes and edges [2018-11-18 10:20:03,074 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 8 nodes and edges [2018-11-18 10:20:03,075 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-18 10:20:03,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-18 10:20:03,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 10:20:03,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 10:20:03,093 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-11-18 10:20:03,112 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_71726554-9f62-40b5-9eef-928283680d6d/bin-2019/utaipan/witness.graphml [2018-11-18 10:20:03,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:20:03,113 INFO L168 Benchmark]: Toolchain (without parser) took 10296.37 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 950.8 MB in the beginning and 964.4 MB in the end (delta: -13.6 MB). Peak memory consumption was 115.4 MB. Max. memory is 11.5 GB. [2018-11-18 10:20:03,114 INFO L168 Benchmark]: CDTParser took 0.16 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 10:20:03,114 INFO L168 Benchmark]: CACSL2BoogieTranslator took 195.23 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:20:03,114 INFO L168 Benchmark]: Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:20:03,114 INFO L168 Benchmark]: Boogie Preprocessor took 30.80 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:20:03,115 INFO L168 Benchmark]: RCFGBuilder took 726.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-11-18 10:20:03,115 INFO L168 Benchmark]: TraceAbstraction took 9270.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:20:03,115 INFO L168 Benchmark]: Witness Printer took 51.17 ms. Allocated memory is still 1.2 GB. Free memory was 971.3 MB in the beginning and 964.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-18 10:20:03,117 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 195.23 ms. Allocated memory is still 1.0 GB. Free memory was 950.8 MB in the beginning and 934.7 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 18.61 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.80 ms. Allocated memory is still 1.0 GB. Free memory is still 934.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 726.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 934.7 MB in the beginning and 1.1 GB in the end (delta: -154.8 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 9270.74 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 971.3 MB in the end (delta: 118.2 MB). Peak memory consumption was 118.2 MB. Max. memory is 11.5 GB. * Witness Printer took 51.17 ms. Allocated memory is still 1.2 GB. Free memory was 971.3 MB in the beginning and 964.4 MB in the end (delta: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 97]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 76]: Loop Invariant [2018-11-18 10:20:03,121 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,121 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,121 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,121 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,122 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,122 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,122 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,122 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,122 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,123 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 39]: Loop Invariant [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,124 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - InvariantResult [Line: 53]: Loop Invariant [2018-11-18 10:20:03,125 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,126 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,127 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,128 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,128 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-11-18 10:20:03,128 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (\old(x) == x && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x))) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 47 locations, 1 error locations. SAFE Result, 9.2s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 5.7s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 135 SDtfs, 160 SDslu, 348 SDs, 0 SdLazy, 105 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 48 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 5.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 14 PreInvPairs, 20 NumberOfFragments, 163 HoareAnnotationTreeSize, 14 FomulaSimplifications, 46 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 2.9s InterpolantComputationTime, 63 NumberOfCodeBlocks, 63 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 60 ConstructedInterpolants, 4 QuantifiedInterpolants, 5448 SizeOfPredicates, 8 NumberOfNonLiveVariables, 171 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...