./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 2099bda96984d0e4445a07fd627008694b409440 .............................................................................................................................................................................................................................................................................................................................................................................. 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_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c -s /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 2099bda96984d0e4445a07fd627008694b409440 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:38:04,353 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:38:04,354 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:38:04,366 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:38:04,366 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:38:04,368 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:38:04,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:38:04,370 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:38:04,372 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:38:04,373 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:38:04,374 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:38:04,374 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:38:04,375 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:38:04,376 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:38:04,377 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:38:04,378 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:38:04,379 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:38:04,381 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:38:04,383 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:38:04,385 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:38:04,386 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:38:04,387 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:38:04,389 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:38:04,389 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:38:04,389 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:38:04,390 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:38:04,392 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:38:04,393 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:38:04,393 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:38:04,394 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:38:04,395 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:38:04,396 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:38:04,396 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:38:04,396 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:38:04,397 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:38:04,398 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:38:04,399 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:38:04,413 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:38:04,413 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:38:04,414 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:38:04,414 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:38:04,414 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:38:04,415 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:38:04,415 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:38:04,415 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:38:04,416 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:38:04,416 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:38:04,416 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:38:04,417 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:38:04,417 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:38:04,417 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:38:04,417 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:38:04,417 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:38:04,418 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:38:04,418 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:38:04,418 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:38:04,418 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:38:04,418 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:38:04,420 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:38:04,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:38:04,421 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:38:04,421 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:38:04,421 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:38:04,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:38:04,421 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:38:04,422 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:38:04,423 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_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2018-10-27 00:38:04,458 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:38:04,470 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:38:04,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:38:04,476 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:38:04,476 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:38:04,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:04,537 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/34cdc1232/ea3a2ede6398428f8ed5d58ec0b3d368/FLAGc5cb97721 [2018-10-27 00:38:04,933 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:38:04,934 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:04,941 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/34cdc1232/ea3a2ede6398428f8ed5d58ec0b3d368/FLAGc5cb97721 [2018-10-27 00:38:04,962 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/34cdc1232/ea3a2ede6398428f8ed5d58ec0b3d368 [2018-10-27 00:38:04,965 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:38:04,967 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:38:04,968 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:04,968 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:38:04,972 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:38:04,974 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:04" (1/1) ... [2018-10-27 00:38:04,977 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f72b957 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:04, skipping insertion in model container [2018-10-27 00:38:04,977 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:04" (1/1) ... [2018-10-27 00:38:04,987 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:38:05,008 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:38:05,177 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:05,181 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:38:05,210 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:05,230 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:38:05,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05 WrapperNode [2018-10-27 00:38:05,231 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:05,232 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:05,232 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:38:05,232 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:38:05,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,281 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:05,281 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:38:05,281 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:38:05,281 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:38:05,294 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,294 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,298 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,298 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,305 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,312 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,314 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... [2018-10-27 00:38:05,316 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:38:05,317 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:38:05,317 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:38:05,317 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:38:05,318 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 [2018-10-27 00:38:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:38:05,472 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:38:05,472 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:38:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:38:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:38:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:38:05,474 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:38:05,474 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:38:05,475 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:38:05,475 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:38:06,212 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:38:06,212 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:06 BoogieIcfgContainer [2018-10-27 00:38:06,212 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:38:06,214 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:38:06,214 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:38:06,218 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:38:06,218 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:38:04" (1/3) ... [2018-10-27 00:38:06,219 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d81b31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:06, skipping insertion in model container [2018-10-27 00:38:06,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:05" (2/3) ... [2018-10-27 00:38:06,220 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d81b31f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:06, skipping insertion in model container [2018-10-27 00:38:06,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:06" (3/3) ... [2018-10-27 00:38:06,222 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:06,234 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:38:06,243 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:38:06,262 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:38:06,298 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:38:06,298 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:38:06,299 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:38:06,299 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:38:06,299 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:38:06,300 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:38:06,300 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:38:06,300 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:38:06,325 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states. [2018-10-27 00:38:06,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:38:06,334 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:06,336 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] [2018-10-27 00:38:06,340 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:06,346 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:06,352 INFO L82 PathProgramCache]: Analyzing trace with hash -345588552, now seen corresponding path program 1 times [2018-10-27 00:38:06,355 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:38:06,414 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:06,415 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:06,415 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:06,415 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:38:06,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:06,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:06,545 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:06,545 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:38:06,546 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:38:06,560 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:38:06,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:38:06,576 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:38:06,578 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 2 states. [2018-10-27 00:38:06,608 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:06,608 INFO L93 Difference]: Finished difference Result 88 states and 122 transitions. [2018-10-27 00:38:06,608 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:38:06,610 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 21 [2018-10-27 00:38:06,610 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:06,625 INFO L225 Difference]: With dead ends: 88 [2018-10-27 00:38:06,625 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:38:06,631 INFO L605 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 [2018-10-27 00:38:06,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:38:06,676 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 44. [2018-10-27 00:38:06,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 44 states. [2018-10-27 00:38:06,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 44 states to 44 states and 54 transitions. [2018-10-27 00:38:06,686 INFO L78 Accepts]: Start accepts. Automaton has 44 states and 54 transitions. Word has length 21 [2018-10-27 00:38:06,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:06,687 INFO L481 AbstractCegarLoop]: Abstraction has 44 states and 54 transitions. [2018-10-27 00:38:06,687 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:38:06,687 INFO L276 IsEmpty]: Start isEmpty. Operand 44 states and 54 transitions. [2018-10-27 00:38:06,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:38:06,688 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:06,689 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] [2018-10-27 00:38:06,689 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:06,689 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:06,689 INFO L82 PathProgramCache]: Analyzing trace with hash -1450739581, now seen corresponding path program 1 times [2018-10-27 00:38:06,690 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:38:06,693 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:06,694 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:06,694 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:38:06,694 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:38:06,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:38:06,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-10-27 00:38:06,809 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-10-27 00:38:06,827 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,827 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,828 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,829 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,830 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,831 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,832 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,833 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,833 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled [2018-10-27 00:38:06,833 WARN L387 cessorBacktranslator]: Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled [2018-10-27 00:38:06,859 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:38:06 BoogieIcfgContainer [2018-10-27 00:38:06,859 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:38:06,859 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:38:06,859 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:38:06,860 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:38:06,860 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:06" (3/4) ... [2018-10-27 00:38:06,866 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-10-27 00:38:06,866 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:38:06,867 INFO L168 Benchmark]: Toolchain (without parser) took 1901.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 954.4 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 9.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,869 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:38:06,870 INFO L168 Benchmark]: CACSL2BoogieTranslator took 263.74 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,870 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,872 INFO L168 Benchmark]: Boogie Preprocessor took 35.52 ms. Allocated memory is still 1.0 GB. Free memory was 940.9 MB in the beginning and 938.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,873 INFO L168 Benchmark]: RCFGBuilder took 895.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,873 INFO L168 Benchmark]: TraceAbstraction took 645.33 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:06,874 INFO L168 Benchmark]: Witness Printer took 6.80 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. [2018-10-27 00:38:06,879 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 979.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 263.74 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 943.6 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.03 ms. Allocated memory is still 1.0 GB. Free memory was 943.6 MB in the beginning and 940.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.52 ms. Allocated memory is still 1.0 GB. Free memory was 940.9 MB in the beginning and 938.2 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 895.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 150.5 MB). Free memory was 938.2 MB in the beginning and 1.1 GB in the end (delta: -186.5 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 645.33 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: 29.5 MB). Peak memory consumption was 29.5 MB. Max. memory is 11.5 GB. * Witness Printer took 6.80 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.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList ULTIMATE.dealloc_~addr : $Pointer$ not handled - GenericResult: Unfinished Backtranslation Unfinished Backtranslation: Nested struct field access of VarList #Ultimate.alloc_#res : $Pointer$ not handled * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 96]: 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)=6442450951, \old(tiny_sqrt)=6442450946, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] CALL, EXPR __ieee754_sqrtf(x) VAL [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 [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] CALL ieee_float_shape_type gf_u; [L23] RET ieee_float_shape_type gf_u; [L24] CALL gf_u.value = (x) [L24] RET gf_u.value = (x) [L25] CALL, EXPR gf_u.word [L25] RET, EXPR gf_u.word [L25] (ix) = gf_u.word [L25] RET (ix) = gf_u.word [L26] COND FALSE !(0) VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] RET return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] EXPR __ieee754_sqrtf(x) VAL [__ieee754_sqrtf(x)=6442450948, one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L92] float res = __ieee754_sqrtf(x); [L95] 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] [L95] EXPR isnan_float(res) VAL [isnan_float(res)=0, one_sqrt=1, res=6442450948, tiny_sqrt=1/1000000000000000000000000000000, x=6442450947] [L95] COND TRUE !isnan_float(res) [L96] __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, 0.5s 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 0.1.23-1dbac8b [2018-10-27 00:38:09,192 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:38:09,194 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:38:09,205 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:38:09,205 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:38:09,206 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:38:09,207 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:38:09,209 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:38:09,210 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:38:09,211 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:38:09,212 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:38:09,212 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:38:09,213 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:38:09,214 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:38:09,215 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:38:09,216 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:38:09,217 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:38:09,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:38:09,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:38:09,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:38:09,223 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:38:09,224 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:38:09,226 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:38:09,226 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:38:09,227 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:38:09,228 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:38:09,229 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:38:09,229 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:38:09,230 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:38:09,231 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:38:09,232 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:38:09,232 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:38:09,233 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:38:09,233 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:38:09,234 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:38:09,235 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:38:09,235 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Bitvector.epf [2018-10-27 00:38:09,249 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:38:09,249 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:38:09,250 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:38:09,250 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:38:09,251 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:38:09,251 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:38:09,251 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:38:09,251 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:38:09,252 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:38:09,252 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:38:09,252 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:38:09,252 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:38:09,252 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:38:09,253 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:38:09,254 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:38:09,254 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:38:09,254 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:38:09,254 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:38:09,257 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:38:09,257 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:38:09,257 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:38:09,257 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:38:09,258 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:38:09,258 INFO L133 SettingsManager]: * Trace refinement strategy=WALRUS [2018-10-27 00:38:09,258 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:38:09,258 INFO L133 SettingsManager]: * Command for external solver=cvc4nyu --tear-down-incremental --rewrite-divk --print-success --lang smt [2018-10-27 00:38:09,258 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-10-27 00:38:09,258 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_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 -> 2099bda96984d0e4445a07fd627008694b409440 [2018-10-27 00:38:09,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:38:09,313 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:38:09,317 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:38:09,319 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:38:09,319 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:38:09,320 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/../../sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:09,372 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/2d7323c31/a02c8dfcbd444903bef5e986d502ce8d/FLAG9218ac752 [2018-10-27 00:38:09,815 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:38:09,816 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/sv-benchmarks/c/float-newlib/float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:09,834 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/2d7323c31/a02c8dfcbd444903bef5e986d502ce8d/FLAG9218ac752 [2018-10-27 00:38:09,850 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/data/2d7323c31/a02c8dfcbd444903bef5e986d502ce8d [2018-10-27 00:38:09,854 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:38:09,855 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:38:09,856 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:09,856 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:38:09,860 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:38:09,861 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:09" (1/1) ... [2018-10-27 00:38:09,864 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@793c0b19 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:09, skipping insertion in model container [2018-10-27 00:38:09,864 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:38:09" (1/1) ... [2018-10-27 00:38:09,875 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:38:09,898 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:38:10,077 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:10,083 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:38:10,118 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:38:10,144 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:38:10,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10 WrapperNode [2018-10-27 00:38:10,145 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:38:10,146 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:10,146 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:38:10,146 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:38:10,155 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,168 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,194 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:38:10,195 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:38:10,195 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:38:10,195 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:38:10,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,205 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,210 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,218 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,227 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... [2018-10-27 00:38:10,233 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:38:10,234 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:38:10,234 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:38:10,234 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:38:10,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 [2018-10-27 00:38:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:38:10,378 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:38:10,378 INFO L130 BoogieDeclarations]: Found specification of procedure isnan_float [2018-10-27 00:38:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure isnan_float [2018-10-27 00:38:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:38:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:38:10,379 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:38:10,379 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:38:10,380 INFO L130 BoogieDeclarations]: Found specification of procedure __ieee754_sqrtf [2018-10-27 00:38:10,380 INFO L138 BoogieDeclarations]: Found implementation of procedure __ieee754_sqrtf [2018-10-27 00:38:10,808 WARN L317 ript$VariableManager]: TermVariabe |qquantified_#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-10-27 00:38:11,487 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:38:11,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:11 BoogieIcfgContainer [2018-10-27 00:38:11,488 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:38:11,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:38:11,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:38:11,492 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:38:11,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:38:09" (1/3) ... [2018-10-27 00:38:11,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d363669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:11, skipping insertion in model container [2018-10-27 00:38:11,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:38:10" (2/3) ... [2018-10-27 00:38:11,494 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7d363669 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:38:11, skipping insertion in model container [2018-10-27 00:38:11,494 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:11" (3/3) ... [2018-10-27 00:38:11,496 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720_true-unreach-call.c [2018-10-27 00:38:11,507 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:38:11,515 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:38:11,529 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:38:11,564 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-10-27 00:38:11,565 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:38:11,565 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:38:11,565 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:38:11,565 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:38:11,566 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:38:11,566 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:38:11,566 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:38:11,566 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:38:11,585 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2018-10-27 00:38:11,593 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2018-10-27 00:38:11,593 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:11,595 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] [2018-10-27 00:38:11,597 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:11,603 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:11,603 INFO L82 PathProgramCache]: Analyzing trace with hash -655235433, now seen corresponding path program 1 times [2018-10-27 00:38:11,608 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:38:11,609 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:38:11,617 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-10-27 00:38:11,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:11,797 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:38:11,818 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:11,818 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:38:11,837 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:11,838 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-27 00:38:11,843 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-27 00:38:11,853 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-27 00:38:11,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-27 00:38:11,856 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2018-10-27 00:38:11,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:11,878 INFO L93 Difference]: Finished difference Result 86 states and 120 transitions. [2018-10-27 00:38:11,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-27 00:38:11,879 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 20 [2018-10-27 00:38:11,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:11,891 INFO L225 Difference]: With dead ends: 86 [2018-10-27 00:38:11,891 INFO L226 Difference]: Without dead ends: 43 [2018-10-27 00:38:11,895 INFO L605 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 [2018-10-27 00:38:11,913 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-27 00:38:11,934 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-10-27 00:38:11,935 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 00:38:11,937 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2018-10-27 00:38:11,939 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 20 [2018-10-27 00:38:11,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:11,939 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2018-10-27 00:38:11,939 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-27 00:38:11,940 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2018-10-27 00:38:11,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2018-10-27 00:38:11,941 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:11,941 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] [2018-10-27 00:38:11,941 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:11,941 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:11,942 INFO L82 PathProgramCache]: Analyzing trace with hash 23230409, now seen corresponding path program 1 times [2018-10-27 00:38:11,942 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:38:11,942 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2018-10-27 00:38:11,948 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2018-10-27 00:38:12,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:12,113 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:38:13,557 WARN L179 SmtUtils]: Spent 184.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-10-27 00:38:14,809 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:14,809 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:38:14,822 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:14,823 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 00:38:14,824 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:38:14,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:38:14,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:38:14,825 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 9 states. [2018-10-27 00:38:18,422 WARN L179 SmtUtils]: Spent 1.04 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 00:38:21,254 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:21,254 INFO L93 Difference]: Finished difference Result 50 states and 60 transitions. [2018-10-27 00:38:21,255 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:38:21,255 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 21 [2018-10-27 00:38:21,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:21,258 INFO L225 Difference]: With dead ends: 50 [2018-10-27 00:38:21,258 INFO L226 Difference]: Without dead ends: 43 [2018-10-27 00:38:21,259 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 6.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:38:21,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-27 00:38:21,267 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-10-27 00:38:21,267 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 00:38:21,268 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 52 transitions. [2018-10-27 00:38:21,269 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 52 transitions. Word has length 21 [2018-10-27 00:38:21,269 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:21,269 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 52 transitions. [2018-10-27 00:38:21,269 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:38:21,269 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 52 transitions. [2018-10-27 00:38:21,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-27 00:38:21,270 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:21,271 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] [2018-10-27 00:38:21,271 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:21,271 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:21,271 INFO L82 PathProgramCache]: Analyzing trace with hash -1375817575, now seen corresponding path program 1 times [2018-10-27 00:38:21,272 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:38:21,272 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/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 [2018-10-27 00:38:21,279 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:21,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:21,342 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:38:21,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:21,536 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:38:21,546 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:21,546 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:38:21,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:38:21,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:38:21,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:38:21,548 INFO L87 Difference]: Start difference. First operand 43 states and 52 transitions. Second operand 7 states. [2018-10-27 00:38:21,916 WARN L179 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 16 [2018-10-27 00:38:23,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:23,284 INFO L93 Difference]: Finished difference Result 59 states and 68 transitions. [2018-10-27 00:38:23,285 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:38:23,285 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 22 [2018-10-27 00:38:23,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:23,288 INFO L225 Difference]: With dead ends: 59 [2018-10-27 00:38:23,288 INFO L226 Difference]: Without dead ends: 49 [2018-10-27 00:38:23,289 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:38:23,290 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 49 states. [2018-10-27 00:38:23,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 49 to 43. [2018-10-27 00:38:23,297 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 00:38:23,298 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 51 transitions. [2018-10-27 00:38:23,298 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 51 transitions. Word has length 22 [2018-10-27 00:38:23,298 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:23,299 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 51 transitions. [2018-10-27 00:38:23,299 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:38:23,299 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 51 transitions. [2018-10-27 00:38:23,300 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-10-27 00:38:23,300 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:23,300 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:38:23,300 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:23,301 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:23,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1712281157, now seen corresponding path program 1 times [2018-10-27 00:38:23,301 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:38:23,301 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2018-10-27 00:38:23,305 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:23,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:23,576 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:38:25,735 WARN L179 SmtUtils]: Spent 552.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2018-10-27 00:38:28,255 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:28,256 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:38:28,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:28,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2018-10-27 00:38:28,272 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:38:28,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:38:28,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:38:28,272 INFO L87 Difference]: Start difference. First operand 43 states and 51 transitions. Second operand 9 states. [2018-10-27 00:38:32,327 WARN L179 SmtUtils]: Spent 1.33 s on a formula simplification that was a NOOP. DAG size: 9 [2018-10-27 00:38:36,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:36,522 INFO L93 Difference]: Finished difference Result 50 states and 58 transitions. [2018-10-27 00:38:36,527 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-10-27 00:38:36,527 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2018-10-27 00:38:36,528 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:36,529 INFO L225 Difference]: With dead ends: 50 [2018-10-27 00:38:36,529 INFO L226 Difference]: Without dead ends: 43 [2018-10-27 00:38:36,529 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 8.9s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2018-10-27 00:38:36,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2018-10-27 00:38:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2018-10-27 00:38:36,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2018-10-27 00:38:36,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 50 transitions. [2018-10-27 00:38:36,535 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 50 transitions. Word has length 23 [2018-10-27 00:38:36,535 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:36,535 INFO L481 AbstractCegarLoop]: Abstraction has 43 states and 50 transitions. [2018-10-27 00:38:36,535 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:38:36,535 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 50 transitions. [2018-10-27 00:38:36,536 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2018-10-27 00:38:36,536 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:38:36,536 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:38:36,537 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:38:36,537 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:38:36,537 INFO L82 PathProgramCache]: Analyzing trace with hash -684876234, now seen corresponding path program 1 times [2018-10-27 00:38:36,537 INFO L225 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-10-27 00:38:36,537 INFO L69 tionRefinementEngine]: Using refinement strategy WalrusRefinementStrategy No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2018-10-27 00:38:36,546 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:38:36,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:38:36,635 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-27 00:38:36,819 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:38:36,819 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-10-27 00:38:36,835 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:38:36,836 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-10-27 00:38:36,836 INFO L460 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-10-27 00:38:36,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-10-27 00:38:36,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-10-27 00:38:36,837 INFO L87 Difference]: Start difference. First operand 43 states and 50 transitions. Second operand 7 states. [2018-10-27 00:38:37,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:38:37,215 INFO L93 Difference]: Finished difference Result 47 states and 55 transitions. [2018-10-27 00:38:37,217 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:38:37,217 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 34 [2018-10-27 00:38:37,217 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:38:37,218 INFO L225 Difference]: With dead ends: 47 [2018-10-27 00:38:37,218 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:38:37,218 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:38:37,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:38:37,219 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:38:37,219 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:38:37,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:38:37,219 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 34 [2018-10-27 00:38:37,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:38:37,220 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:38:37,220 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-10-27 00:38:37,220 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:38:37,220 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:38:37,225 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:38:37,399 WARN L179 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 20 [2018-10-27 00:38:37,476 INFO L425 ceAbstractionStarter]: For program point isnan_floatFINAL(line 13) no Hoare annotation was computed. [2018-10-27 00:38:37,477 INFO L428 ceAbstractionStarter]: At program point isnan_floatENTRY(line 13) the Hoare annotation is: true [2018-10-27 00:38:37,477 INFO L425 ceAbstractionStarter]: For program point isnan_floatEXIT(line 13) no Hoare annotation was computed. [2018-10-27 00:38:37,477 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:38:37,477 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:38:37,477 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:38:37,477 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:38:37,478 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:38:37,478 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:38:37,478 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:38:37,478 INFO L425 ceAbstractionStarter]: For program point L96(line 96) no Hoare annotation was computed. [2018-10-27 00:38:37,478 INFO L421 ceAbstractionStarter]: At program point L95(line 95) the Hoare annotation is: (let ((.cse0 (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)))) (and (= .cse0 main_~x~0) (= main_~res~0 (fp.add RNE (fp.mul RNE .cse0 .cse0) .cse0)))) [2018-10-27 00:38:37,478 INFO L425 ceAbstractionStarter]: For program point L95-1(lines 95 98) no Hoare annotation was computed. [2018-10-27 00:38:37,478 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 84 101) the Hoare annotation is: true [2018-10-27 00:38:37,478 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 84 101) no Hoare annotation was computed. [2018-10-27 00:38:37,478 INFO L421 ceAbstractionStarter]: At program point L92(line 92) the Hoare annotation is: (= (fp.div RNE (_ +zero 8 24) (_ +zero 8 24)) main_~x~0) [2018-10-27 00:38:37,478 INFO L425 ceAbstractionStarter]: For program point L92-1(line 92) no Hoare annotation was computed. [2018-10-27 00:38:37,479 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2018-10-27 00:38:37,479 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 84 101) no Hoare annotation was computed. [2018-10-27 00:38:37,479 INFO L425 ceAbstractionStarter]: For program point L64(lines 64 73) no Hoare annotation was computed. [2018-10-27 00:38:37,479 INFO L425 ceAbstractionStarter]: For program point L32(lines 32 33) no Hoare annotation was computed. [2018-10-27 00:38:37,479 INFO L425 ceAbstractionStarter]: For program point L53-1(lines 53 62) no Hoare annotation was computed. [2018-10-27 00:38:37,480 INFO L421 ceAbstractionStarter]: At program point L53-3(lines 53 62) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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|)))) [2018-10-27 00:38:37,480 INFO L425 ceAbstractionStarter]: For program point L53-4(lines 17 82) no Hoare annotation was computed. [2018-10-27 00:38:37,480 INFO L428 ceAbstractionStarter]: At program point __ieee754_sqrtfENTRY(lines 17 82) the Hoare annotation is: true [2018-10-27 00:38:37,480 INFO L425 ceAbstractionStarter]: For program point L45(lines 45 46) no Hoare annotation was computed. [2018-10-27 00:38:37,480 INFO L425 ceAbstractionStarter]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2018-10-27 00:38:37,480 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfFINAL(lines 17 82) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point L66(lines 66 72) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point L29(lines 29 30) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point __ieee754_sqrtfEXIT(lines 17 82) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point L38(lines 38 42) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2018-10-27 00:38:37,481 INFO L425 ceAbstractionStarter]: For program point L34(lines 34 35) no Hoare annotation was computed. [2018-10-27 00:38:37,482 INFO L425 ceAbstractionStarter]: For program point L55(lines 55 59) no Hoare annotation was computed. [2018-10-27 00:38:37,482 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2018-10-27 00:38:37,482 INFO L425 ceAbstractionStarter]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2018-10-27 00:38:37,482 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 26) the Hoare annotation is: (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) [2018-10-27 00:38:37,482 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 26) no Hoare annotation was computed. [2018-10-27 00:38:37,491 INFO L425 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-10-27 00:38:37,491 INFO L421 ceAbstractionStarter]: At program point L76-3(lines 76 80) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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|)))) [2018-10-27 00:38:37,491 INFO L425 ceAbstractionStarter]: For program point L76-4(lines 76 80) no Hoare annotation was computed. [2018-10-27 00:38:37,491 INFO L425 ceAbstractionStarter]: For program point L39-1(lines 39 40) no Hoare annotation was computed. [2018-10-27 00:38:37,492 INFO L425 ceAbstractionStarter]: For program point L39-3(lines 39 40) no Hoare annotation was computed. [2018-10-27 00:38:37,492 INFO L425 ceAbstractionStarter]: For program point L68(lines 68 71) no Hoare annotation was computed. [2018-10-27 00:38:37,492 INFO L421 ceAbstractionStarter]: At program point L39-4(lines 39 40) the Hoare annotation is: (and (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) __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|))) (= |__ieee754_sqrtf_#in~x| __ieee754_sqrtf_~x) (exists ((__ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (bvult (bvand __ieee754_sqrtf_~ix~0 (_ bv2147483647 32)) (_ 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|)))) [2018-10-27 00:38:37,492 INFO L425 ceAbstractionStarter]: For program point L39-5(lines 39 40) no Hoare annotation was computed. [2018-10-27 00:38:37,501 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,502 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,502 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,502 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,504 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,504 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,504 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,505 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,513 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,514 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,515 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,516 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,517 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,518 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,518 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,522 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,523 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,523 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,523 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,524 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,524 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,524 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,524 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,525 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,525 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,526 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,526 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,526 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,526 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,530 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,530 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,531 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,532 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,533 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,538 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:38:37 BoogieIcfgContainer [2018-10-27 00:38:37,538 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:38:37,538 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:38:37,539 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:38:37,539 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:38:37,539 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:38:11" (3/4) ... [2018-10-27 00:38:37,545 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:38:37,552 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure isnan_float [2018-10-27 00:38:37,552 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:38:37,553 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:38:37,553 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __ieee754_sqrtf [2018-10-27 00:38:37,560 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 41 nodes and edges [2018-10-27 00:38:37,560 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 19 nodes and edges [2018-10-27 00:38:37,560 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-27 00:38:37,589 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-10-27 00:38:37,589 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-10-27 00:38:37,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-10-27 00:38:37,590 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) [2018-10-27 00:38:37,627 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_072708e0-7808-4cdf-944b-35a7b4fb97a4/bin-2019/utaipan/witness.graphml [2018-10-27 00:38:37,627 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:38:37,628 INFO L168 Benchmark]: Toolchain (without parser) took 27773.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 953.2 MB in the beginning and 915.5 MB in the end (delta: 37.8 MB). Peak memory consumption was 191.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:37,628 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:38:37,629 INFO L168 Benchmark]: CACSL2BoogieTranslator took 288.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:37,629 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.92 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:38:37,630 INFO L168 Benchmark]: Boogie Preprocessor took 38.99 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:38:37,630 INFO L168 Benchmark]: RCFGBuilder took 1253.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:37,633 INFO L168 Benchmark]: TraceAbstraction took 26049.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.2 MB in the end (delta: 193.4 MB). Peak memory consumption was 193.4 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:37,633 INFO L168 Benchmark]: Witness Printer took 88.51 ms. Allocated memory is still 1.2 GB. Free memory was 922.2 MB in the beginning and 915.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:38:37,636 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 1.0 GB. Free memory is still 978.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 288.81 ms. Allocated memory is still 1.0 GB. Free memory was 953.2 MB in the beginning and 937.1 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 48.92 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.99 ms. Allocated memory is still 1.0 GB. Free memory is still 937.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1253.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 937.1 MB in the beginning and 1.1 GB in the end (delta: -178.5 MB). Peak memory consumption was 28.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 26049.34 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 922.2 MB in the end (delta: 193.4 MB). Peak memory consumption was 193.4 MB. Max. memory is 11.5 GB. * Witness Printer took 88.51 ms. Allocated memory is still 1.2 GB. Free memory was 922.2 MB in the beginning and 915.5 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 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: 96]: 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 [2018-10-27 00:38:37,644 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,644 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,644 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,644 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,645 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,645 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,645 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,645 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,646 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,646 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,661 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,662 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,662 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,662 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,662 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,663 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~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 [2018-10-27 00:38:37,663 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,664 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,664 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,664 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,664 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,664 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,665 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,665 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,665 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,666 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,666 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,666 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,666 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,666 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,667 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,667 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~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 [2018-10-27 00:38:37,667 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,668 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,668 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,668 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,668 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,668 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,669 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,669 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,669 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,670 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,670 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,670 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,670 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,670 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,671 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] [2018-10-27 00:38:37,671 WARN L387 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[__ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32) == hx && ~fp~LONGDOUBLE(__ieee754_sqrtf_~ix~0[31:31], __ieee754_sqrtf_~ix~0[30:23], __ieee754_sqrtf_~ix~0[22:0]) == \old(x)) && \old(x) == x) && (\exists __ieee754_sqrtf_~ix~0 : bv32 :: ~bvult32(~bvand32(__ieee754_sqrtf_~ix~0, 2147483647bv32), 2139095040bv32) && ~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, 25.9s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 16.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.2s HoareAnnotationTime, HoareTripleCheckerStatistics: 220 SDtfs, 265 SDslu, 750 SDs, 0 SdLazy, 206 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 131 GetRequests, 91 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 15.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=47occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 16 PreInvPairs, 23 NumberOfFragments, 148 HoareAnnotationTreeSize, 16 FomulaSimplifications, 146 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 12 FomulaSimplificationsInter, 32 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 7.8s InterpolantComputationTime, 120 NumberOfCodeBlocks, 120 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 115 ConstructedInterpolants, 20 QuantifiedInterpolants, 17923 SizeOfPredicates, 24 NumberOfNonLiveVariables, 399 ConjunctsInSsa, 41 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...