./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c71a459772bdb184fdc6408fbdfc05dbcf613bc .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 9c71a459772bdb184fdc6408fbdfc05dbcf613bc ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:49:17,412 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:49:17,416 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:49:17,434 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:49:17,435 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:49:17,437 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:49:17,439 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:49:17,449 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:49:17,451 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:49:17,453 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:49:17,455 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:49:17,456 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:49:17,457 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:49:17,461 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:49:17,462 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:49:17,463 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:49:17,466 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:49:17,468 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:49:17,471 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:49:17,476 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:49:17,481 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:49:17,485 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:49:17,487 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:49:17,488 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:49:17,491 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:49:17,491 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:49:17,491 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:49:17,493 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:49:17,494 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:49:17,495 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:49:17,495 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:49:17,496 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:49:17,497 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:49:17,498 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:49:17,500 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:49:17,500 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:49:17,501 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:49:17,501 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:49:17,501 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:49:17,502 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:49:17,504 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:49:17,504 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:49:17,537 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:49:17,537 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:49:17,539 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:49:17,543 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:49:17,544 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:49:17,544 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:49:17,544 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:49:17,544 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:49:17,544 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:49:17,545 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:49:17,545 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:49:17,545 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:49:17,549 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:49:17,549 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:49:17,550 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:49:17,550 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:49:17,550 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:49:17,550 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:49:17,550 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:49:17,551 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:49:17,551 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:49:17,551 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:49:17,551 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:49:17,551 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:49:17,551 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:49:17,552 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:49:17,552 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:49:17,552 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:49:17,552 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:49:17,552 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2020-07-28 17:49:17,894 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:49:17,914 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:49:17,917 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:49:17,919 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:49:17,919 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:49:17,920 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-07-28 17:49:17,982 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d9c141/54858b98c9974143b0c206428add5a52/FLAG3e4d9003c [2020-07-28 17:49:18,439 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:49:18,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-07-28 17:49:18,445 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d9c141/54858b98c9974143b0c206428add5a52/FLAG3e4d9003c [2020-07-28 17:49:18,818 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/212d9c141/54858b98c9974143b0c206428add5a52 [2020-07-28 17:49:18,821 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:49:18,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:49:18,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:49:18,825 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:49:18,828 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:49:18,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:49:18" (1/1) ... [2020-07-28 17:49:18,833 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4040106a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:18, skipping insertion in model container [2020-07-28 17:49:18,834 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:49:18" (1/1) ... [2020-07-28 17:49:18,842 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:49:18,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:49:19,080 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:49:19,085 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:49:19,123 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:49:19,205 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:49:19,206 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19 WrapperNode [2020-07-28 17:49:19,206 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:49:19,207 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:49:19,207 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:49:19,207 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:49:19,216 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,265 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:49:19,265 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:49:19,265 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:49:19,266 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:49:19,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,278 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,279 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,291 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,299 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,302 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... [2020-07-28 17:49:19,305 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:49:19,306 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:49:19,306 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:49:19,307 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:49:19,308 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:49:19,370 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:49:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:49:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:49:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:49:19,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:49:19,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:49:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:49:19,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:49:19,907 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:49:19,907 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:49:19,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:19 BoogieIcfgContainer [2020-07-28 17:49:19,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:49:19,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:49:19,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:49:19,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:49:19,918 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:49:18" (1/3) ... [2020-07-28 17:49:19,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733598ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:49:19, skipping insertion in model container [2020-07-28 17:49:19,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:19" (2/3) ... [2020-07-28 17:49:19,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@733598ab and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:49:19, skipping insertion in model container [2020-07-28 17:49:19,920 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:19" (3/3) ... [2020-07-28 17:49:19,921 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-07-28 17:49:19,933 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:49:19,941 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:49:19,955 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:49:19,979 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:49:19,980 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:49:19,980 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:49:19,980 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:49:19,980 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:49:19,981 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:49:19,981 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:49:19,981 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:49:19,997 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:49:20,003 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:49:20,004 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:20,005 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:20,005 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:20,011 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:20,011 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-07-28 17:49:20,019 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:49:20,019 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [292068636] [2020-07-28 17:49:20,020 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:49:20,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:20,151 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~one_sqrt~0 := 1.0;~tiny_sqrt~0 := 1.0E-30; {40#true} is VALID [2020-07-28 17:49:20,152 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := 0.0;__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {40#true} is VALID [2020-07-28 17:49:20,154 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:49:20,154 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} __ieee754_sqrtf_~hx~0 := ~bitwiseAnd(__ieee754_sqrtf_~ix~0, 2147483647); {41#false} is VALID [2020-07-28 17:49:20,155 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume !(__ieee754_sqrtf_~hx~0 % 4294967296 < 2139095040);__ieee754_sqrtf_#res := ~someBinaryArithmeticFLOAToperation(~someBinaryArithmeticFLOAToperation(__ieee754_sqrtf_~x, __ieee754_sqrtf_~x), __ieee754_sqrtf_~x); {41#false} is VALID [2020-07-28 17:49:20,155 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~someBinaryFLOATComparisonOperation(main_~res~0, 0.0); {41#false} is VALID [2020-07-28 17:49:20,155 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume !main_#t~short9; {41#false} is VALID [2020-07-28 17:49:20,156 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} assume !main_#t~short9;havoc main_#t~ret8;havoc main_#t~short9; {41#false} is VALID [2020-07-28 17:49:20,156 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:49:20,159 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:20,160 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [292068636] [2020-07-28 17:49:20,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:49:20,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:49:20,162 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [416035517] [2020-07-28 17:49:20,169 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:49:20,171 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:49:20,175 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:49:20,195 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:20,196 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:49:20,196 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:49:20,205 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:49:20,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:49:20,209 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:49:20,307 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:20,308 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2020-07-28 17:49:20,308 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:49:20,308 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:49:20,308 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:49:20,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:49:20,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 112 transitions. [2020-07-28 17:49:20,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:49:20,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 112 transitions. [2020-07-28 17:49:20,325 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 112 transitions. [2020-07-28 17:49:20,498 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:20,520 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:49:20,520 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:49:20,525 INFO L675 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 [2020-07-28 17:49:20,545 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:49:20,570 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:49:20,570 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:49:20,572 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:20,573 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:20,573 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:20,580 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:20,580 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-07-28 17:49:20,580 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:20,581 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:20,582 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:20,582 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:20,582 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:20,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:20,596 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-07-28 17:49:20,596 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:20,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:20,597 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:20,598 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:49:20,598 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:49:20,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:49:20,603 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-07-28 17:49:20,605 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-07-28 17:49:20,605 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:49:20,606 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-07-28 17:49:20,606 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:49:20,606 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:20,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:49:20,607 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:20,608 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:20,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:49:20,609 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:20,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:20,610 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-07-28 17:49:20,610 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:49:20,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [171895910] [2020-07-28 17:49:20,611 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:49:20,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:49:20,685 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:49:20,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:49:20,721 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:49:20,751 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:49:20,751 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:49:20,753 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:49:20,782 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:49:20,782 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L19-2 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-28 17:49:20,783 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:49:20,784 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:49:20,784 WARN L170 areAnnotationChecker]: L78 has no Hoare annotation [2020-07-28 17:49:20,784 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:49:20,784 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:49:20,784 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L84-2 has no Hoare annotation [2020-07-28 17:49:20,785 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-28 17:49:20,786 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L110 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-28 17:49:20,787 WARN L170 areAnnotationChecker]: L36-3 has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: L90 has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-28 17:49:20,788 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L50-2 has no Hoare annotation [2020-07-28 17:49:20,789 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:49:20,790 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L73-2 has no Hoare annotation [2020-07-28 17:49:20,791 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-28 17:49:20,792 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-28 17:49:20,792 WARN L170 areAnnotationChecker]: L73-3 has no Hoare annotation [2020-07-28 17:49:20,792 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:49:20,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:49:20 BoogieIcfgContainer [2020-07-28 17:49:20,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:49:20,796 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:49:20,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:49:20,796 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:49:20,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:19" (3/4) ... [2020-07-28 17:49:20,801 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:49:20,801 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:49:20,804 INFO L168 Benchmark]: Toolchain (without parser) took 1981.07 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.5 MB in the beginning and 1.0 GB in the end (delta: -63.3 MB). Peak memory consumption was 78.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:20,805 INFO L168 Benchmark]: CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:49:20,806 INFO L168 Benchmark]: CACSL2BoogieTranslator took 381.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:20,807 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:20,807 INFO L168 Benchmark]: Boogie Preprocessor took 40.45 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. [2020-07-28 17:49:20,808 INFO L168 Benchmark]: RCFGBuilder took 606.41 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:20,809 INFO L168 Benchmark]: TraceAbstraction took 881.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:20,809 INFO L168 Benchmark]: Witness Printer took 5.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:49:20,813 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.88 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 381.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -180.8 MB). Peak memory consumption was 26.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.45 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 606.41 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: 45.0 MB). Peak memory consumption was 45.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 881.77 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.0 MB). Peak memory consumption was 66.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.27 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 106]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 105, overapproximation of bitwiseAnd at line 24, overapproximation of someBinaryArithmeticFLOAToperation at line 27. Possible FailurePath: [L12] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L101] float x = 0.0f; [L15] float z; [L16] __uint32_t r, hx; [L17] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L20] ieee_float_shape_type gf_u; [L21] gf_u.value = (x) [L22] EXPR gf_u.word [L22] (ix) = gf_u.word [L24] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L26] COND TRUE !((hx) < 0x7f800000L) [L27] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L102] float res = __ieee754_sqrtf(x); [L105] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L105] COND TRUE !(res == 0.0f && __signbit_float(res) == 0) [L106] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 48 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=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: 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 0.1.25-8bd4bc6 [2020-07-28 17:49:22,777 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:49:22,780 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:49:22,795 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:49:22,797 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:49:22,799 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:49:22,801 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:49:22,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:49:22,813 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:49:22,815 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:49:22,817 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:49:22,819 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:49:22,820 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:49:22,823 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:49:22,825 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:49:22,827 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:49:22,828 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:49:22,831 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:49:22,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:49:22,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:49:22,841 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:49:22,844 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:49:22,848 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:49:22,850 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:49:22,854 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:49:22,855 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:49:22,855 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:49:22,857 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:49:22,858 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:49:22,859 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:49:22,860 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:49:22,862 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:49:22,862 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:49:22,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:49:22,866 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:49:22,866 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:49:22,867 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:49:22,867 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:49:22,867 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:49:22,868 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:49:22,870 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:49:22,871 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:49:22,911 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:49:22,912 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:49:22,915 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:49:22,916 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:49:22,916 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:49:22,916 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:49:22,916 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:49:22,917 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:49:22,922 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:49:22,922 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:49:22,923 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:49:22,924 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:49:22,924 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:49:22,925 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:49:22,925 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:49:22,925 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:49:22,925 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:49:22,926 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:49:22,926 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:49:22,927 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:49:22,927 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:49:22,929 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:49:22,929 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:49:22,930 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:49:22,931 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:49:22,931 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:49:22,931 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:49:22,932 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:49:22,932 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:49:22,932 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:49:22,932 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:49:22,932 INFO L138 SettingsManager]: * Logic for external solver=AUFBV 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux 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 -> Automizer 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 -> 9c71a459772bdb184fdc6408fbdfc05dbcf613bc [2020-07-28 17:49:23,302 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:49:23,322 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:49:23,326 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:49:23,328 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:49:23,331 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:49:23,332 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-07-28 17:49:23,394 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0459494/37d25f7674a142a381826f347f31341a/FLAG4e6b2cd29 [2020-07-28 17:49:23,869 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:49:23,870 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0730b.c [2020-07-28 17:49:23,877 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0459494/37d25f7674a142a381826f347f31341a/FLAG4e6b2cd29 [2020-07-28 17:49:24,291 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5e0459494/37d25f7674a142a381826f347f31341a [2020-07-28 17:49:24,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:49:24,298 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:49:24,299 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:49:24,300 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:49:24,303 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:49:24,305 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,308 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@575e98f7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24, skipping insertion in model container [2020-07-28 17:49:24,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,316 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:49:24,340 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:49:24,595 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:49:24,604 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:49:24,712 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:49:24,737 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:49:24,738 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24 WrapperNode [2020-07-28 17:49:24,738 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:49:24,739 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:49:24,739 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:49:24,739 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:49:24,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,758 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,793 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:49:24,793 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:49:24,794 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:49:24,794 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:49:24,802 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,803 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,808 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,809 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,822 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,829 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,832 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... [2020-07-28 17:49:24,840 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:49:24,841 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:49:24,841 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:49:24,841 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:49:24,843 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:49:24,922 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:49:24,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:49:24,923 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:49:24,923 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:49:24,923 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:49:24,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:49:24,923 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:49:24,924 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:49:26,126 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:49:26,127 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:49:26,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:26 BoogieIcfgContainer [2020-07-28 17:49:26,132 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:49:26,133 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:49:26,133 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:49:26,137 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:49:26,137 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:49:24" (1/3) ... [2020-07-28 17:49:26,138 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfbd276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:49:26, skipping insertion in model container [2020-07-28 17:49:26,138 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:49:24" (2/3) ... [2020-07-28 17:49:26,139 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3dfbd276 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:49:26, skipping insertion in model container [2020-07-28 17:49:26,139 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:26" (3/3) ... [2020-07-28 17:49:26,141 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0730b.c [2020-07-28 17:49:26,152 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:49:26,160 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:49:26,175 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:49:26,200 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:49:26,200 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:49:26,201 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:49:26,201 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:49:26,201 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:49:26,202 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:49:26,202 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:49:26,202 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:49:26,218 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states. [2020-07-28 17:49:26,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 17:49:26,226 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:26,227 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:26,228 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:26,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:26,236 INFO L82 PathProgramCache]: Analyzing trace with hash -1903716510, now seen corresponding path program 1 times [2020-07-28 17:49:26,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:49:26,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654833487] [2020-07-28 17:49:26,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2020-07-28 17:49:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:26,425 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:49:26,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:26,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:49:26,471 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {40#true} is VALID [2020-07-28 17:49:26,472 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {40#true} is VALID [2020-07-28 17:49:26,474 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:49:26,474 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {41#false} is VALID [2020-07-28 17:49:26,475 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume !~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32);__ieee754_sqrtf_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, __ieee754_sqrtf_~x, __ieee754_sqrtf_~x), __ieee754_sqrtf_~x); {41#false} is VALID [2020-07-28 17:49:26,475 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {41#false} is VALID [2020-07-28 17:49:26,475 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume !main_#t~short9; {41#false} is VALID [2020-07-28 17:49:26,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {41#false} is VALID [2020-07-28 17:49:26,477 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:49:26,480 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:26,480 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:49:26,509 INFO L280 TraceCheckUtils]: 8: Hoare triple {41#false} assume !false; {41#false} is VALID [2020-07-28 17:49:26,510 INFO L280 TraceCheckUtils]: 7: Hoare triple {41#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {41#false} is VALID [2020-07-28 17:49:26,510 INFO L280 TraceCheckUtils]: 6: Hoare triple {41#false} assume !main_#t~short9; {41#false} is VALID [2020-07-28 17:49:26,510 INFO L280 TraceCheckUtils]: 5: Hoare triple {41#false} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {41#false} is VALID [2020-07-28 17:49:26,511 INFO L280 TraceCheckUtils]: 4: Hoare triple {41#false} assume !~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32);__ieee754_sqrtf_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, __ieee754_sqrtf_~x, __ieee754_sqrtf_~x), __ieee754_sqrtf_~x); {41#false} is VALID [2020-07-28 17:49:26,511 INFO L280 TraceCheckUtils]: 3: Hoare triple {41#false} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {41#false} is VALID [2020-07-28 17:49:26,513 INFO L280 TraceCheckUtils]: 2: Hoare triple {40#true} assume !true; {41#false} is VALID [2020-07-28 17:49:26,513 INFO L280 TraceCheckUtils]: 1: Hoare triple {40#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {40#true} is VALID [2020-07-28 17:49:26,514 INFO L280 TraceCheckUtils]: 0: Hoare triple {40#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {40#true} is VALID [2020-07-28 17:49:26,514 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:26,515 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654833487] [2020-07-28 17:49:26,516 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:49:26,517 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:49:26,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [655452504] [2020-07-28 17:49:26,524 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:49:26,525 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:49:26,529 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:49:26,594 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:26,595 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:49:26,595 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:49:26,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:49:26,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:49:26,605 INFO L87 Difference]: Start difference. First operand 37 states. Second operand 2 states. [2020-07-28 17:49:27,165 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:27,166 INFO L93 Difference]: Finished difference Result 72 states and 112 transitions. [2020-07-28 17:49:27,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:49:27,166 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2020-07-28 17:49:27,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:49:27,168 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:49:27,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 112 transitions. [2020-07-28 17:49:27,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:49:27,192 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 112 transitions. [2020-07-28 17:49:27,192 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 112 transitions. [2020-07-28 17:49:27,859 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 112 edges. 112 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:27,884 INFO L225 Difference]: With dead ends: 72 [2020-07-28 17:49:27,884 INFO L226 Difference]: Without dead ends: 34 [2020-07-28 17:49:27,896 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:49:27,928 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34 states. [2020-07-28 17:49:27,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34 to 34. [2020-07-28 17:49:27,959 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:49:27,959 INFO L82 GeneralOperation]: Start isEquivalent. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:27,960 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:27,960 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:27,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:27,966 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-07-28 17:49:27,966 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:27,967 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:27,967 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:27,967 INFO L74 IsIncluded]: Start isIncluded. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:27,968 INFO L87 Difference]: Start difference. First operand 34 states. Second operand 34 states. [2020-07-28 17:49:27,974 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:27,975 INFO L93 Difference]: Finished difference Result 34 states and 45 transitions. [2020-07-28 17:49:27,975 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:27,977 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:27,977 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:27,978 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:49:27,978 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:49:27,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34 states. [2020-07-28 17:49:27,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34 states to 34 states and 45 transitions. [2020-07-28 17:49:27,986 INFO L78 Accepts]: Start accepts. Automaton has 34 states and 45 transitions. Word has length 9 [2020-07-28 17:49:27,986 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:49:27,986 INFO L479 AbstractCegarLoop]: Abstraction has 34 states and 45 transitions. [2020-07-28 17:49:27,987 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:49:27,991 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states and 45 transitions. [2020-07-28 17:49:27,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:49:27,993 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:27,993 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:28,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:49:28,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:28,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:28,212 INFO L82 PathProgramCache]: Analyzing trace with hash 1484634303, now seen corresponding path program 1 times [2020-07-28 17:49:28,213 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:49:28,213 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1549015800] [2020-07-28 17:49:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2020-07-28 17:49:28,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:28,354 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:49:28,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:28,372 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:49:28,485 INFO L280 TraceCheckUtils]: 0: Hoare triple {289#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {289#true} is VALID [2020-07-28 17:49:28,487 INFO L280 TraceCheckUtils]: 1: Hoare triple {289#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {297#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:28,490 INFO L280 TraceCheckUtils]: 2: Hoare triple {297#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {301#(= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))} is VALID [2020-07-28 17:49:28,491 INFO L280 TraceCheckUtils]: 3: Hoare triple {301#(= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))} goto; {301#(= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))} is VALID [2020-07-28 17:49:28,493 INFO L280 TraceCheckUtils]: 4: Hoare triple {301#(= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {308#(exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0)))} is VALID [2020-07-28 17:49:28,545 INFO L280 TraceCheckUtils]: 5: Hoare triple {308#(exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0)))} assume !~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32);__ieee754_sqrtf_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, __ieee754_sqrtf_~x, __ieee754_sqrtf_~x), __ieee754_sqrtf_~x); {290#false} is VALID [2020-07-28 17:49:28,545 INFO L280 TraceCheckUtils]: 6: Hoare triple {290#false} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {290#false} is VALID [2020-07-28 17:49:28,545 INFO L280 TraceCheckUtils]: 7: Hoare triple {290#false} assume !main_#t~short9; {290#false} is VALID [2020-07-28 17:49:28,546 INFO L280 TraceCheckUtils]: 8: Hoare triple {290#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {290#false} is VALID [2020-07-28 17:49:28,546 INFO L280 TraceCheckUtils]: 9: Hoare triple {290#false} assume !false; {290#false} is VALID [2020-07-28 17:49:28,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:28,548 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:49:28,650 INFO L280 TraceCheckUtils]: 9: Hoare triple {290#false} assume !false; {290#false} is VALID [2020-07-28 17:49:28,650 INFO L280 TraceCheckUtils]: 8: Hoare triple {290#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {290#false} is VALID [2020-07-28 17:49:28,650 INFO L280 TraceCheckUtils]: 7: Hoare triple {290#false} assume !main_#t~short9; {290#false} is VALID [2020-07-28 17:49:28,651 INFO L280 TraceCheckUtils]: 6: Hoare triple {290#false} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {290#false} is VALID [2020-07-28 17:49:28,653 INFO L280 TraceCheckUtils]: 5: Hoare triple {336#(bvult ULTIMATE.start___ieee754_sqrtf_~hx~0 (_ bv2139095040 32))} assume !~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32);__ieee754_sqrtf_#res := ~fp.add~FLOAT(currentRoundingMode, ~fp.mul~FLOAT(currentRoundingMode, __ieee754_sqrtf_~x, __ieee754_sqrtf_~x), __ieee754_sqrtf_~x); {290#false} is VALID [2020-07-28 17:49:28,660 INFO L280 TraceCheckUtils]: 4: Hoare triple {340#(bvult (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) (_ bv2139095040 32))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {336#(bvult ULTIMATE.start___ieee754_sqrtf_~hx~0 (_ bv2139095040 32))} is VALID [2020-07-28 17:49:28,663 INFO L280 TraceCheckUtils]: 3: Hoare triple {340#(bvult (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) (_ bv2139095040 32))} goto; {340#(bvult (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) (_ bv2139095040 32))} is VALID [2020-07-28 17:49:28,669 INFO L280 TraceCheckUtils]: 2: Hoare triple {347#(forall ((v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26 (_ BitVec 32))) (or (bvult (bvand (_ bv2147483647 32) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) (_ bv2139095040 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) ((_ extract 30 23) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) ((_ extract 22 0) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26))))))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {340#(bvult (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) (_ bv2139095040 32))} is VALID [2020-07-28 17:49:28,677 INFO L280 TraceCheckUtils]: 1: Hoare triple {289#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {347#(forall ((v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26 (_ BitVec 32))) (or (bvult (bvand (_ bv2147483647 32) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) (_ bv2139095040 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) ((_ extract 30 23) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26) ((_ extract 22 0) v_ULTIMATE.start___ieee754_sqrtf_~ix~0_26))))))} is VALID [2020-07-28 17:49:28,678 INFO L280 TraceCheckUtils]: 0: Hoare triple {289#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {289#true} is VALID [2020-07-28 17:49:28,678 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:28,679 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1549015800] [2020-07-28 17:49:28,679 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:49:28,679 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:49:28,680 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [336945311] [2020-07-28 17:49:28,686 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-07-28 17:49:28,686 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:49:28,687 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:49:28,801 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:28,801 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:49:28,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:49:28,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:49:28,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:49:28,803 INFO L87 Difference]: Start difference. First operand 34 states and 45 transitions. Second operand 8 states. [2020-07-28 17:49:29,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:29,032 INFO L93 Difference]: Finished difference Result 43 states and 54 transitions. [2020-07-28 17:49:29,032 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:49:29,032 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 10 [2020-07-28 17:49:29,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:49:29,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:49:29,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2020-07-28 17:49:29,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:49:29,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 54 transitions. [2020-07-28 17:49:29,037 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 54 transitions. [2020-07-28 17:49:29,383 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 54 edges. 54 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:29,385 INFO L225 Difference]: With dead ends: 43 [2020-07-28 17:49:29,385 INFO L226 Difference]: Without dead ends: 16 [2020-07-28 17:49:29,387 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:49:29,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-28 17:49:29,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-28 17:49:29,400 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:49:29,400 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:29,400 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:29,400 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:29,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:29,402 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-07-28 17:49:29,402 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-07-28 17:49:29,402 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:29,402 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:29,403 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:29,403 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:29,404 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:29,404 INFO L93 Difference]: Finished difference Result 16 states and 16 transitions. [2020-07-28 17:49:29,404 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-07-28 17:49:29,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:29,405 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:29,405 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:49:29,405 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:49:29,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:49:29,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2020-07-28 17:49:29,406 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 10 [2020-07-28 17:49:29,406 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:49:29,406 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2020-07-28 17:49:29,406 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:49:29,406 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2020-07-28 17:49:29,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:49:29,407 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:29,407 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:29,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:49:29,608 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:29,609 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:29,609 INFO L82 PathProgramCache]: Analyzing trace with hash -1245587968, now seen corresponding path program 1 times [2020-07-28 17:49:29,611 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:49:29,611 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1564836460] [2020-07-28 17:49:29,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:49:29,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:29,696 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 7 conjunts are in the unsatisfiable core [2020-07-28 17:49:29,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:29,712 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:49:29,761 INFO L280 TraceCheckUtils]: 0: Hoare triple {462#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {462#true} is VALID [2020-07-28 17:49:29,762 INFO L280 TraceCheckUtils]: 1: Hoare triple {462#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,764 INFO L280 TraceCheckUtils]: 2: Hoare triple {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,764 INFO L280 TraceCheckUtils]: 3: Hoare triple {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} goto; {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,765 INFO L280 TraceCheckUtils]: 4: Hoare triple {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,766 INFO L280 TraceCheckUtils]: 5: Hoare triple {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume !!~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32); {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,766 INFO L280 TraceCheckUtils]: 6: Hoare triple {470#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume 0bv32 == __ieee754_sqrtf_~hx~0;__ieee754_sqrtf_#res := __ieee754_sqrtf_~x; {486#(= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,767 INFO L280 TraceCheckUtils]: 7: Hoare triple {486#(= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {490#|ULTIMATE.start_main_#t~short9|} is VALID [2020-07-28 17:49:29,768 INFO L280 TraceCheckUtils]: 8: Hoare triple {490#|ULTIMATE.start_main_#t~short9|} assume !main_#t~short9; {463#false} is VALID [2020-07-28 17:49:29,768 INFO L280 TraceCheckUtils]: 9: Hoare triple {463#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {463#false} is VALID [2020-07-28 17:49:29,768 INFO L280 TraceCheckUtils]: 10: Hoare triple {463#false} assume !false; {463#false} is VALID [2020-07-28 17:49:29,769 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:29,769 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:49:29,836 INFO L280 TraceCheckUtils]: 10: Hoare triple {463#false} assume !false; {463#false} is VALID [2020-07-28 17:49:29,836 INFO L280 TraceCheckUtils]: 9: Hoare triple {463#false} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {463#false} is VALID [2020-07-28 17:49:29,840 INFO L280 TraceCheckUtils]: 8: Hoare triple {490#|ULTIMATE.start_main_#t~short9|} assume !main_#t~short9; {463#false} is VALID [2020-07-28 17:49:29,843 INFO L280 TraceCheckUtils]: 7: Hoare triple {509#(fp.eq |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {490#|ULTIMATE.start_main_#t~short9|} is VALID [2020-07-28 17:49:29,844 INFO L280 TraceCheckUtils]: 6: Hoare triple {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume 0bv32 == __ieee754_sqrtf_~hx~0;__ieee754_sqrtf_#res := __ieee754_sqrtf_~x; {509#(fp.eq |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,844 INFO L280 TraceCheckUtils]: 5: Hoare triple {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume !!~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32); {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,845 INFO L280 TraceCheckUtils]: 4: Hoare triple {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,845 INFO L280 TraceCheckUtils]: 3: Hoare triple {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} goto; {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,846 INFO L280 TraceCheckUtils]: 2: Hoare triple {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {462#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {513#(fp.eq ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:29,847 INFO L280 TraceCheckUtils]: 0: Hoare triple {462#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {462#true} is VALID [2020-07-28 17:49:29,847 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:29,848 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1564836460] [2020-07-28 17:49:29,848 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:49:29,848 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 7 [2020-07-28 17:49:29,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1065177072] [2020-07-28 17:49:29,849 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-07-28 17:49:29,849 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:49:29,849 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states. [2020-07-28 17:49:29,883 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:29,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-28 17:49:29,884 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:49:29,884 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-28 17:49:29,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-07-28 17:49:29,884 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 7 states. [2020-07-28 17:49:30,070 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:30,071 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:49:30,071 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:49:30,071 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 11 [2020-07-28 17:49:30,071 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:49:30,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 17:49:30,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:49:30,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-07-28 17:49:30,073 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:49:30,074 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 18 transitions. [2020-07-28 17:49:30,116 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 18 edges. 18 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:30,117 INFO L225 Difference]: With dead ends: 19 [2020-07-28 17:49:30,117 INFO L226 Difference]: Without dead ends: 16 [2020-07-28 17:49:30,118 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2020-07-28 17:49:30,119 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2020-07-28 17:49:30,126 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2020-07-28 17:49:30,127 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:49:30,127 INFO L82 GeneralOperation]: Start isEquivalent. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:30,127 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:30,128 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:30,130 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:30,130 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:49:30,130 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:49:30,130 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:30,130 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:30,131 INFO L74 IsIncluded]: Start isIncluded. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:30,131 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 16 states. [2020-07-28 17:49:30,132 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:30,132 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:49:30,132 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:49:30,133 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:30,133 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:30,133 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:49:30,133 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:49:30,133 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:49:30,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 15 transitions. [2020-07-28 17:49:30,134 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 15 transitions. Word has length 11 [2020-07-28 17:49:30,135 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:49:30,135 INFO L479 AbstractCegarLoop]: Abstraction has 16 states and 15 transitions. [2020-07-28 17:49:30,135 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-28 17:49:30,135 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 15 transitions. [2020-07-28 17:49:30,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:49:30,136 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:49:30,136 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:49:30,341 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:49:30,342 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:49:30,343 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:49:30,343 INFO L82 PathProgramCache]: Analyzing trace with hash 336653141, now seen corresponding path program 1 times [2020-07-28 17:49:30,344 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:49:30,345 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1730922094] [2020-07-28 17:49:30,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 17:49:30,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:30,436 INFO L263 TraceCheckSpWp]: Trace formula consists of 48 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-28 17:49:30,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:49:30,456 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:49:30,540 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:49:30,584 INFO L280 TraceCheckUtils]: 0: Hoare triple {610#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {610#true} is VALID [2020-07-28 17:49:30,586 INFO L280 TraceCheckUtils]: 1: Hoare triple {610#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,586 INFO L280 TraceCheckUtils]: 2: Hoare triple {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,587 INFO L280 TraceCheckUtils]: 3: Hoare triple {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} goto; {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,587 INFO L280 TraceCheckUtils]: 4: Hoare triple {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,588 INFO L280 TraceCheckUtils]: 5: Hoare triple {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume !!~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32); {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,588 INFO L280 TraceCheckUtils]: 6: Hoare triple {618#(= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24))} assume 0bv32 == __ieee754_sqrtf_~hx~0;__ieee754_sqrtf_#res := __ieee754_sqrtf_~x; {634#(= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,589 INFO L280 TraceCheckUtils]: 7: Hoare triple {634#(= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24))} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {638#(= (_ +zero 8 24) ULTIMATE.start_main_~res~0)} is VALID [2020-07-28 17:49:30,590 INFO L280 TraceCheckUtils]: 8: Hoare triple {638#(= (_ +zero 8 24) ULTIMATE.start_main_~res~0)} assume main_#t~short9;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem5, __signbit_float_#t~union6, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~0;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~0; {642#(= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x)} is VALID [2020-07-28 17:49:30,593 INFO L280 TraceCheckUtils]: 9: Hoare triple {642#(= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x)} call __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__signbit_float_~x, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);call __signbit_float_#t~mem5 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~0 := __signbit_float_#t~mem5;call write~intFLOATTYPE4(__signbit_float_#t~union6, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~mem5;havoc __signbit_float_#t~union6;call ULTIMATE.dealloc(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset);havoc __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset; {646#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,593 INFO L280 TraceCheckUtils]: 10: Hoare triple {646#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24))} goto; {646#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24))} is VALID [2020-07-28 17:49:30,595 INFO L280 TraceCheckUtils]: 11: Hoare triple {646#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~0) then 1bv32 else 0bv32); {653#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} is VALID [2020-07-28 17:49:30,595 INFO L280 TraceCheckUtils]: 12: Hoare triple {653#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} main_#t~ret8 := __signbit_float_#res;main_#t~short9 := 0bv32 == main_#t~ret8; {657#|ULTIMATE.start_main_#t~short9|} is VALID [2020-07-28 17:49:30,596 INFO L280 TraceCheckUtils]: 13: Hoare triple {657#|ULTIMATE.start_main_#t~short9|} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {611#false} is VALID [2020-07-28 17:49:30,596 INFO L280 TraceCheckUtils]: 14: Hoare triple {611#false} assume !false; {611#false} is VALID [2020-07-28 17:49:30,597 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:30,597 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:49:30,906 INFO L280 TraceCheckUtils]: 14: Hoare triple {611#false} assume !false; {611#false} is VALID [2020-07-28 17:49:30,907 INFO L280 TraceCheckUtils]: 13: Hoare triple {657#|ULTIMATE.start_main_#t~short9|} assume !main_#t~short9;havoc main_#t~short9;havoc main_#t~ret8; {611#false} is VALID [2020-07-28 17:49:30,908 INFO L280 TraceCheckUtils]: 12: Hoare triple {653#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} main_#t~ret8 := __signbit_float_#res;main_#t~short9 := 0bv32 == main_#t~ret8; {657#|ULTIMATE.start_main_#t~short9|} is VALID [2020-07-28 17:49:30,909 INFO L280 TraceCheckUtils]: 11: Hoare triple {673#(= (_ bv0 32) (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~0))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~0) then 1bv32 else 0bv32); {653#(= |ULTIMATE.start___signbit_float_#res| (_ bv0 32))} is VALID [2020-07-28 17:49:30,910 INFO L280 TraceCheckUtils]: 10: Hoare triple {673#(= (_ bv0 32) (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~0))} goto; {673#(= (_ bv0 32) (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~0))} is VALID [2020-07-28 17:49:30,913 INFO L280 TraceCheckUtils]: 9: Hoare triple {680#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5)) ULTIMATE.start___signbit_float_~x)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32))))} call __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__signbit_float_~x, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);call __signbit_float_#t~mem5 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~0 := __signbit_float_#t~mem5;call write~intFLOATTYPE4(__signbit_float_#t~union6, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~mem5;havoc __signbit_float_#t~union6;call ULTIMATE.dealloc(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset);havoc __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset; {673#(= (_ bv0 32) (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~0))} is VALID [2020-07-28 17:49:30,916 INFO L280 TraceCheckUtils]: 8: Hoare triple {684#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5)) ULTIMATE.start_main_~res~0))))} assume main_#t~short9;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem5, __signbit_float_#t~union6, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~0;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~0; {680#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5)) ULTIMATE.start___signbit_float_~x)) (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32))))} is VALID [2020-07-28 17:49:30,919 INFO L280 TraceCheckUtils]: 7: Hoare triple {688#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} main_#t~ret7 := __ieee754_sqrtf_#res;main_~res~0 := main_#t~ret7;havoc main_#t~ret7;main_#t~short9 := ~fp.eq~FLOAT(main_~res~0, ~Pluszero~FLOAT()); {684#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5)) ULTIMATE.start_main_~res~0))))} is VALID [2020-07-28 17:49:30,920 INFO L280 TraceCheckUtils]: 6: Hoare triple {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} assume 0bv32 == __ieee754_sqrtf_~hx~0;__ieee754_sqrtf_#res := __ieee754_sqrtf_~x; {688#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= |ULTIMATE.start___ieee754_sqrtf_#res| (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,921 INFO L280 TraceCheckUtils]: 5: Hoare triple {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} assume !!~bvult32(__ieee754_sqrtf_~hx~0, 2139095040bv32); {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,921 INFO L280 TraceCheckUtils]: 4: Hoare triple {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} __ieee754_sqrtf_~hx~0 := ~bvand32(2147483647bv32, __ieee754_sqrtf_~ix~0); {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,922 INFO L280 TraceCheckUtils]: 3: Hoare triple {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} goto; {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,922 INFO L280 TraceCheckUtils]: 2: Hoare triple {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} call __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__ieee754_sqrtf_~x, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);call __ieee754_sqrtf_#t~mem0 := read~intINTTYPE4(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);__ieee754_sqrtf_~ix~0 := __ieee754_sqrtf_#t~mem0;call write~intFLOATTYPE4(__ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, 4bv32);havoc __ieee754_sqrtf_#t~mem0;havoc __ieee754_sqrtf_#t~union1;call ULTIMATE.dealloc(__ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset);havoc __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset; {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,924 INFO L280 TraceCheckUtils]: 1: Hoare triple {610#true} havoc main_#res;havoc main_#t~ret7, main_#t~ret8, main_#t~short9, main_~x~0, main_~res~0;main_~x~0 := ~Pluszero~FLOAT();__ieee754_sqrtf_#in~x := main_~x~0;havoc __ieee754_sqrtf_#res;havoc __ieee754_sqrtf_#t~mem0, __ieee754_sqrtf_#t~union1, __ieee754_sqrtf_~#gf_u~0.base, __ieee754_sqrtf_~#gf_u~0.offset, __ieee754_sqrtf_#t~post2, __ieee754_sqrtf_#t~mem3, __ieee754_sqrtf_#t~union4, __ieee754_sqrtf_~#sf_u~0.base, __ieee754_sqrtf_~#sf_u~0.offset, __ieee754_sqrtf_~x, __ieee754_sqrtf_~z~0, __ieee754_sqrtf_~r~0, __ieee754_sqrtf_~hx~0, __ieee754_sqrtf_~ix~0, __ieee754_sqrtf_~s~0, __ieee754_sqrtf_~q~0, __ieee754_sqrtf_~m~0, __ieee754_sqrtf_~t~0, __ieee754_sqrtf_~i~0;__ieee754_sqrtf_~x := __ieee754_sqrtf_#in~x;havoc __ieee754_sqrtf_~z~0;havoc __ieee754_sqrtf_~r~0;havoc __ieee754_sqrtf_~hx~0;havoc __ieee754_sqrtf_~ix~0;havoc __ieee754_sqrtf_~s~0;havoc __ieee754_sqrtf_~q~0;havoc __ieee754_sqrtf_~m~0;havoc __ieee754_sqrtf_~t~0;havoc __ieee754_sqrtf_~i~0; {692#(forall ((v_ULTIMATE.start___signbit_float_~w~0_5 (_ BitVec 32))) (or (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~0_5) (_ bv0 32)) (not (= ULTIMATE.start___ieee754_sqrtf_~x (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~0_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~0_5))))))} is VALID [2020-07-28 17:49:30,924 INFO L280 TraceCheckUtils]: 0: Hoare triple {610#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~one_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0));~tiny_sqrt~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E-30)); {610#true} is VALID [2020-07-28 17:49:30,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:49:30,926 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1730922094] [2020-07-28 17:49:30,926 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:49:30,926 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 14 [2020-07-28 17:49:30,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [885974046] [2020-07-28 17:49:30,927 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-07-28 17:49:30,927 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:49:30,927 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-28 17:49:30,991 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:30,991 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-28 17:49:30,991 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:49:30,991 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-28 17:49:30,992 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=152, Unknown=0, NotChecked=0, Total=182 [2020-07-28 17:49:30,992 INFO L87 Difference]: Start difference. First operand 16 states and 15 transitions. Second operand 14 states. [2020-07-28 17:49:31,515 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:31,515 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2020-07-28 17:49:31,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 17:49:31,515 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 15 [2020-07-28 17:49:31,516 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:49:31,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-28 17:49:31,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-07-28 17:49:31,517 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-28 17:49:31,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 15 transitions. [2020-07-28 17:49:31,517 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 15 transitions. [2020-07-28 17:49:31,551 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 15 edges. 15 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:49:31,551 INFO L225 Difference]: With dead ends: 16 [2020-07-28 17:49:31,552 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:49:31,553 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-07-28 17:49:31,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:49:31,553 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:49:31,553 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:49:31,553 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:49:31,554 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:49:31,554 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:49:31,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:31,554 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:49:31,554 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:49:31,554 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:31,555 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:31,555 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:49:31,555 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:49:31,555 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:49:31,555 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:49:31,555 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:49:31,556 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:31,556 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:49:31,556 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:49:31,556 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:49:31,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:49:31,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:49:31,556 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 17:49:31,557 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:49:31,557 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:49:31,557 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-28 17:49:31,557 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:49:31,557 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:49:31,765 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-07-28 17:49:31,769 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:49:31,944 INFO L268 CegarLoopResult]: For program point L35-2(lines 35 39) no Hoare annotation was computed. [2020-07-28 17:49:31,944 INFO L268 CegarLoopResult]: For program point L52(lines 52 56) no Hoare annotation was computed. [2020-07-28 17:49:31,944 INFO L268 CegarLoopResult]: For program point L19-1(lines 19 23) no Hoare annotation was computed. [2020-07-28 17:49:31,944 INFO L268 CegarLoopResult]: For program point L52-2(lines 52 56) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L264 CegarLoopResult]: At program point L19-2(lines 19 23) the Hoare annotation is: (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point L19-3(lines 19 23) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L271 CegarLoopResult]: At program point L110(lines 93 111) the Hoare annotation is: true [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point L36-2(lines 36 37) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L264 CegarLoopResult]: At program point L36-3(lines 36 37) the Hoare annotation is: false [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point L36-4(lines 36 37) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point L61(lines 61 70) no Hoare annotation was computed. [2020-07-28 17:49:31,945 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:49:31,946 INFO L264 CegarLoopResult]: At program point L78(lines 14 79) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0)))) [2020-07-28 17:49:31,946 INFO L268 CegarLoopResult]: For program point L29(lines 29 30) no Hoare annotation was computed. [2020-07-28 17:49:31,946 INFO L268 CegarLoopResult]: For program point L63(lines 63 69) no Hoare annotation was computed. [2020-07-28 17:49:31,946 INFO L268 CegarLoopResult]: For program point L105(line 105) no Hoare annotation was computed. [2020-07-28 17:49:31,947 INFO L268 CegarLoopResult]: For program point L105-2(lines 105 108) no Hoare annotation was computed. [2020-07-28 17:49:31,947 INFO L268 CegarLoopResult]: For program point L31(lines 31 32) no Hoare annotation was computed. [2020-07-28 17:49:31,947 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-07-28 17:49:31,948 INFO L268 CegarLoopResult]: For program point L73-1(lines 73 77) no Hoare annotation was computed. [2020-07-28 17:49:31,948 INFO L264 CegarLoopResult]: At program point L73-2(lines 73 77) the Hoare annotation is: false [2020-07-28 17:49:31,948 INFO L268 CegarLoopResult]: For program point L73-3(lines 73 77) no Hoare annotation was computed. [2020-07-28 17:49:31,948 INFO L268 CegarLoopResult]: For program point L65(lines 65 68) no Hoare annotation was computed. [2020-07-28 17:49:31,948 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:49:31,948 INFO L264 CegarLoopResult]: At program point L90(lines 81 91) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~0) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~0) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~0)) (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (= |ULTIMATE.start___signbit_float_#res| (_ bv0 32)) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) |ULTIMATE.start_main_#t~short9|) [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 106) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L264 CegarLoopResult]: At program point L50-2(lines 50 59) the Hoare annotation is: false [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point L50-3(lines 14 79) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point L42(lines 42 43) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point L42-2(lines 42 43) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point L26(lines 26 27) no Hoare annotation was computed. [2020-07-28 17:49:31,949 INFO L268 CegarLoopResult]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2020-07-28 17:49:31,950 INFO L264 CegarLoopResult]: At program point L84-2(lines 84 88) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_sqrtf_#res| (_ +zero 8 24)) (= (_ +zero 8 24) ULTIMATE.start_main_~res~0) (= (_ +zero 8 24) ULTIMATE.start___signbit_float_~x) (exists ((ULTIMATE.start___ieee754_sqrtf_~ix~0 (_ BitVec 32))) (and (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) (= (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_sqrtf_~ix~0) ULTIMATE.start___ieee754_sqrtf_~hx~0))) (= (_ +zero 8 24) (fp ((_ extract 31 31) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 30 23) ULTIMATE.start___ieee754_sqrtf_~ix~0) ((_ extract 22 0) ULTIMATE.start___ieee754_sqrtf_~ix~0))) |ULTIMATE.start_main_#t~short9|) [2020-07-28 17:49:31,950 INFO L268 CegarLoopResult]: For program point L84-3(lines 84 88) no Hoare annotation was computed. [2020-07-28 17:49:31,950 INFO L268 CegarLoopResult]: For program point L35(lines 35 39) no Hoare annotation was computed. [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L19-1 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L19-3 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:49:31,955 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L105 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L31 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-28 17:49:31,956 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L35 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L84-1 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L84-3 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: L106 has no Hoare annotation [2020-07-28 17:49:31,957 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L35-2 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L105-2 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L36-4 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L36-2 has no Hoare annotation [2020-07-28 17:49:31,958 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:49:31,959 WARN L170 areAnnotationChecker]: L42 has no Hoare annotation [2020-07-28 17:49:31,959 WARN L170 areAnnotationChecker]: L42-2 has no Hoare annotation [2020-07-28 17:49:31,959 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L50-3 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L63 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L61 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L52-2 has no Hoare annotation [2020-07-28 17:49:31,960 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L65 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L73-3 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L73-1 has no Hoare annotation [2020-07-28 17:49:31,961 WARN L170 areAnnotationChecker]: L73-3 has no Hoare annotation [2020-07-28 17:49:31,961 INFO L163 areAnnotationChecker]: CFG has 0 edges. 0 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:49:31,966 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,967 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,972 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,974 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,975 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,976 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,977 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,978 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,979 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:31,981 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:49:31 BoogieIcfgContainer [2020-07-28 17:49:31,981 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:49:31,982 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:49:31,982 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:49:31,982 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:49:31,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:49:26" (3/4) ... [2020-07-28 17:49:31,986 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:49:31,998 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-07-28 17:49:31,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:49:31,999 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:49:32,029 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) [2020-07-28 17:49:32,030 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-07-28 17:49:32,031 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux [2020-07-28 17:49:32,094 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:49:32,094 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:49:32,102 INFO L168 Benchmark]: Toolchain (without parser) took 7800.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 191.9 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -168.0 MB). Peak memory consumption was 23.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,102 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:49:32,103 INFO L168 Benchmark]: CACSL2BoogieTranslator took 439.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,103 INFO L168 Benchmark]: Boogie Procedure Inliner took 54.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:49:32,103 INFO L168 Benchmark]: Boogie Preprocessor took 47.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,104 INFO L168 Benchmark]: RCFGBuilder took 1291.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,104 INFO L168 Benchmark]: TraceAbstraction took 5848.20 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,105 INFO L168 Benchmark]: Witness Printer took 112.97 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: 7.5 MB). Peak memory consumption was 7.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:49:32,107 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 439.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.1 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -153.4 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 54.22 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 47.19 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1291.16 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.0 MB). Peak memory consumption was 33.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5848.20 ms. Allocated memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: 71.8 MB). Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: -61.9 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Witness Printer took 112.97 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: 7.5 MB). Peak memory consumption was 7.5 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[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 106]: 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: 81]: Loop Invariant [2020-07-28 17:49:32,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,115 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,116 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,119 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,123 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && \result == 0bv32) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 50]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x == ~Pluszero~LONGDOUBLE() - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 73]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant [2020-07-28 17:49:32,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,128 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,129 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,130 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: (((((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && ~Pluszero~LONGDOUBLE() == res) && ~Pluszero~LONGDOUBLE() == x) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0])) && aux-res == 0.0f && __signbit_float(res) == 0-aux - InvariantResult [Line: 14]: Loop Invariant [2020-07-28 17:49:32,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,131 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,133 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,134 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] [2020-07-28 17:49:32,135 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_sqrtf_~ix~0,QUANTIFIED] Derived loop invariant: ((x == ~Pluszero~LONGDOUBLE() && \result == ~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start___ieee754_sqrtf_~ix~0 : bv32 :: ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_sqrtf_~ix~0[31:31], ULTIMATE.start___ieee754_sqrtf_~ix~0[30:23], ULTIMATE.start___ieee754_sqrtf_~ix~0[22:0]) && ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_sqrtf_~ix~0) == hx)) && ~Pluszero~LONGDOUBLE() == ~fp~LONGDOUBLE(ix[31:31], ix[30:23], ix[22:0]) - InvariantResult [Line: 93]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 37 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 77 SDtfs, 129 SDslu, 53 SDs, 0 SdLazy, 50 SolverSat, 12 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 91 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 32 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=37occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 8 PreInvPairs, 13 NumberOfFragments, 129 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.0s InterpolantComputationTime, 45 NumberOfCodeBlocks, 45 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 82 ConstructedInterpolants, 10 QuantifiedInterpolants, 4061 SizeOfPredicates, 22 NumberOfNonLiveVariables, 132 ConjunctsInSsa, 30 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...