./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1072d.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_1072d.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 e16d2ad47f8069122c38404dcdf9504ef10df900 ................................................................................................................................................................................................................................................................................................................................................................ 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_1072d.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 e16d2ad47f8069122c38404dcdf9504ef10df900 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:53:45,601 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:45,603 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:45,616 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:45,617 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:45,618 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:45,620 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:45,622 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:45,624 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:45,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:45,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:45,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:45,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:45,629 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:45,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:45,632 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:45,633 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:45,634 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:45,636 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:45,638 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:45,640 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:45,642 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:45,643 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:45,644 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:45,646 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:45,647 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:45,647 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:45,648 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:45,649 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:45,650 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:45,650 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:45,651 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:45,652 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:45,653 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:45,654 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:45,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:45,655 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:45,656 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:45,656 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:45,657 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:45,658 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:45,659 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:53:45,674 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:45,675 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:45,676 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:45,677 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:45,677 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:45,677 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:45,678 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:45,678 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:53:45,678 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:45,678 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:45,679 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:45,679 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:45,679 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:45,679 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:45,680 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:45,680 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:45,680 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:45,681 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:45,681 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:45,684 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:45,684 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:45,684 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:45,684 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:45,685 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:45,685 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:45,685 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:53:45,686 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:53:45,686 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:45,686 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:45,686 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 -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2020-07-28 17:53:46,018 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:46,039 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:46,044 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:46,045 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:46,046 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:46,047 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-07-28 17:53:46,121 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bef703b/f517ed79ff274bde8ac75b2bbedbdbf5/FLAG12aa11b06 [2020-07-28 17:53:46,572 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:46,572 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-07-28 17:53:46,581 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bef703b/f517ed79ff274bde8ac75b2bbedbdbf5/FLAG12aa11b06 [2020-07-28 17:53:46,930 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e6bef703b/f517ed79ff274bde8ac75b2bbedbdbf5 [2020-07-28 17:53:46,934 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:46,937 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:46,938 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:46,938 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:46,944 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:46,946 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:46" (1/1) ... [2020-07-28 17:53:46,950 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@674049d7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:46, skipping insertion in model container [2020-07-28 17:53:46,950 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:46" (1/1) ... [2020-07-28 17:53:46,959 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:46,987 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:47,232 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:47,237 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:47,290 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:47,371 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:47,372 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47 WrapperNode [2020-07-28 17:53:47,372 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:47,373 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:47,373 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:47,373 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:47,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,405 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:47,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:47,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:47,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:47,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,447 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,447 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,460 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (1/1) ... [2020-07-28 17:53:47,471 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:47,472 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:47,472 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:47,472 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:47,473 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (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 17:53:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:47,539 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:47,540 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:47,540 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:47,541 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:48,007 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:48,007 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:53:48,011 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:48 BoogieIcfgContainer [2020-07-28 17:53:48,011 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:48,012 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:48,014 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:48,017 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:48,018 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:46" (1/3) ... [2020-07-28 17:53:48,020 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520cfb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:48, skipping insertion in model container [2020-07-28 17:53:48,020 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:47" (2/3) ... [2020-07-28 17:53:48,021 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@520cfb65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:48, skipping insertion in model container [2020-07-28 17:53:48,022 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:48" (3/3) ... [2020-07-28 17:53:48,025 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2020-07-28 17:53:48,036 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:48,047 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:48,065 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:48,095 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:48,096 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:48,096 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:48,096 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:48,097 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:48,097 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:48,097 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:48,098 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:48,120 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-28 17:53:48,127 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:48,127 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:48,129 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:48,129 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:48,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:48,138 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-07-28 17:53:48,148 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:48,149 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1880390602] [2020-07-28 17:53:48,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:48,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:48,274 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {28#true} is VALID [2020-07-28 17:53:48,275 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~someUnaryFLOAToperation(0.0);trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:48,276 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:48,277 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := (if ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 else ~bitwiseAnd(trunc_float_~w~0, 2147483648) % 4294967296 % 4294967296 - 4294967296);trunc_float_~exponent_less_127~0 := ~bitwiseAnd(trunc_float_~w~0, 2139095040) / 8388608 - 127; {29#false} is VALID [2020-07-28 17:53:48,277 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !(trunc_float_~exponent_less_127~0 < 23); {29#false} is VALID [2020-07-28 17:53:48,277 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~someBinaryArithmeticFLOAToperation(trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:48,278 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~someBinaryFLOATComparisonOperation(main_~res~0, ~someUnaryFLOAToperation(0.0)); {29#false} is VALID [2020-07-28 17:53:48,278 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:48,279 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {29#false} is VALID [2020-07-28 17:53:48,279 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:48,282 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:53:48,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1880390602] [2020-07-28 17:53:48,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:48,284 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:48,285 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107342097] [2020-07-28 17:53:48,290 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:48,291 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:48,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:48,355 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:48,355 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:48,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:48,362 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:48,363 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:48,365 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-07-28 17:53:48,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:48,439 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2020-07-28 17:53:48,439 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:48,439 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:48,439 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:48,441 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:48,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:48,452 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:48,456 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:48,457 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2020-07-28 17:53:48,567 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:48,577 INFO L225 Difference]: With dead ends: 48 [2020-07-28 17:53:48,577 INFO L226 Difference]: Without dead ends: 22 [2020-07-28 17:53:48,581 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 17:53:48,600 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-28 17:53:48,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-28 17:53:48,622 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:48,623 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:48,623 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:48,623 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:48,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:48,627 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:48,627 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:48,628 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:48,628 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:48,628 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:48,628 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:48,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:48,632 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:48,632 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:48,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:48,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:48,633 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:48,633 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:48,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-28 17:53:48,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-07-28 17:53:48,637 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-07-28 17:53:48,637 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:48,637 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-07-28 17:53:48,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:48,638 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:48,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:48,638 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:48,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:48,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:48,639 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:48,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:48,640 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-07-28 17:53:48,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:48,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [51259688] [2020-07-28 17:53:48,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:48,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:48,715 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:48,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:48,762 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:48,804 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:53:48,805 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:53:48,817 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:48,872 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:48,873 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:48,873 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-28 17:53:48,873 WARN L170 areAnnotationChecker]: L14-2 has no Hoare annotation [2020-07-28 17:53:48,873 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:48,873 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:48,874 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-28 17:53:48,875 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:48,875 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:48,875 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:48,875 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:48,876 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:48,882 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:48,884 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-28 17:53:48,884 WARN L170 areAnnotationChecker]: L24-2 has no Hoare annotation [2020-07-28 17:53:48,884 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 17:53:48,884 WARN L170 areAnnotationChecker]: L30-2 has no Hoare annotation [2020-07-28 17:53:48,885 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:48,885 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:48,885 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:48,885 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:48,885 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:48,886 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:48,886 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:48,886 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:48,886 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:53:48,887 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:53:48,887 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:48,887 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:48,887 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:48,887 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:48,888 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-28 17:53:48,888 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:48,888 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:48,888 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:53:48,889 WARN L170 areAnnotationChecker]: L52 has no Hoare annotation [2020-07-28 17:53:48,890 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:48,890 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 17:53:48,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:48 BoogieIcfgContainer [2020-07-28 17:53:48,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:48,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:48,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:48,896 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:48,897 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:48" (3/4) ... [2020-07-28 17:53:48,902 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:53:48,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:48,908 INFO L168 Benchmark]: Toolchain (without parser) took 1970.70 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.2 MB in the beginning and 1.0 GB in the end (delta: -80.1 MB). Peak memory consumption was 51.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,909 INFO L168 Benchmark]: CDTParser took 0.85 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 17:53:48,912 INFO L168 Benchmark]: CACSL2BoogieTranslator took 434.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,913 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.37 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 17:53:48,914 INFO L168 Benchmark]: Boogie Preprocessor took 36.85 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 17:53:48,915 INFO L168 Benchmark]: RCFGBuilder took 539.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,916 INFO L168 Benchmark]: TraceAbstraction took 881.52 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:48,917 INFO L168 Benchmark]: Witness Printer took 8.08 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 17:53:48,927 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 0.85 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 434.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.6 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.37 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 36.85 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 539.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 32.4 MB). Peak memory consumption was 32.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 881.52 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: 52.7 MB). Peak memory consumption was 52.7 MB. Max. memory is 11.5 GB. * Witness Printer took 8.08 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: 67]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 66, overapproximation of bitwiseAnd at line 19, overapproximation of someUnaryFLOAToperation at line 62, overapproximation of someBinaryArithmeticFLOAToperation at line 38. Possible FailurePath: [L62] float x = -0.0f; [L13] __int32_t signbit, w, exponent_less_127; [L15] ieee_float_shape_type gf_u; [L16] gf_u.value = (x) [L17] EXPR gf_u.word [L17] (w) = gf_u.word [L19] signbit = w & 0x80000000 [L20] exponent_less_127 = ((w & 0x7f800000) >> 23) - 127 [L21] COND FALSE !(exponent_less_127 < 23) [L37] COND TRUE exponent_less_127 == 255 [L38] return x + x; [L63] float res = trunc_float(x); [L66] EXPR res == -0.0f && __signbit_float(res) == 1 [L66] COND TRUE !(res == -0.0f && __signbit_float(res) == 1) [L67] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.7s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 28 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=25occurred 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, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 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 17:53:50,894 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:50,896 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:50,908 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:50,908 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:50,909 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:50,910 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:50,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:50,914 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:50,915 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:50,916 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:50,918 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:50,918 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:50,919 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:50,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:50,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:50,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:50,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:50,926 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:50,928 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:50,930 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:50,931 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:50,932 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:50,933 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:50,936 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:50,937 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:50,937 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:50,939 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:50,939 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:50,940 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:50,941 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:50,942 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:50,942 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:50,943 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:50,945 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:50,945 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:50,946 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:50,946 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:50,947 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:50,948 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:50,948 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:50,949 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:50,965 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:50,966 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:50,967 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:50,967 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:50,967 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:50,968 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:50,968 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:50,968 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:50,969 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:50,969 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:50,971 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:50,972 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:50,972 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:50,972 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:50,972 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:50,973 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:50,973 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:50,973 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:50,974 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:50,974 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:50,974 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:50,975 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:50,975 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:50,975 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:50,975 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:50,976 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:50,976 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:50,976 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:50,977 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:50,977 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:50,977 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:50,977 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 -> e16d2ad47f8069122c38404dcdf9504ef10df900 [2020-07-28 17:53:51,379 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:51,401 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:51,405 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:51,407 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:51,408 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:51,409 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-07-28 17:53:51,483 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153c5dff9/e20c3341169a4df8b21691e5caa7e148/FLAG9be09bfb7 [2020-07-28 17:53:51,933 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:51,934 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1072d.c [2020-07-28 17:53:51,941 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153c5dff9/e20c3341169a4df8b21691e5caa7e148/FLAG9be09bfb7 [2020-07-28 17:53:52,300 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/153c5dff9/e20c3341169a4df8b21691e5caa7e148 [2020-07-28 17:53:52,303 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:52,306 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:52,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:52,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:52,311 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:52,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,318 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63fcfff2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52, skipping insertion in model container [2020-07-28 17:53:52,318 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,327 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:52,352 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:52,548 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:52,557 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:52,591 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:52,620 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:52,620 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52 WrapperNode [2020-07-28 17:53:52,620 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:52,621 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:52,622 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:52,622 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:52,693 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,704 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,732 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:52,732 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:52,732 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:52,733 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:52,743 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,744 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,748 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,749 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,762 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,769 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,771 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (1/1) ... [2020-07-28 17:53:52,775 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:52,776 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:52,776 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:52,776 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:52,777 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (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 17:53:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:52,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:52,845 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:52,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:53,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:53,345 INFO L295 CfgBuilder]: Removed 16 assume(true) statements. [2020-07-28 17:53:53,349 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:53 BoogieIcfgContainer [2020-07-28 17:53:53,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:53,351 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:53,351 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:53,354 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:53,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:52" (1/3) ... [2020-07-28 17:53:53,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3d3f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:53, skipping insertion in model container [2020-07-28 17:53:53,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:52" (2/3) ... [2020-07-28 17:53:53,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6a3d3f8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:53, skipping insertion in model container [2020-07-28 17:53:53,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:53" (3/3) ... [2020-07-28 17:53:53,359 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1072d.c [2020-07-28 17:53:53,371 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:53,380 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:53,395 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:53,415 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:53,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:53,416 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:53,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:53,416 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:53,416 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:53,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:53,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:53,432 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2020-07-28 17:53:53,438 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:53,438 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:53,439 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:53,440 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:53,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:53,446 INFO L82 PathProgramCache]: Analyzing trace with hash 1945115165, now seen corresponding path program 1 times [2020-07-28 17:53:53,460 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:53,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [118907995] [2020-07-28 17:53:53,461 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 17:53:53,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:53,556 INFO L263 TraceCheckSpWp]: Trace formula consists of 21 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:53,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:53,569 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:53,608 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {28#true} is VALID [2020-07-28 17:53:53,608 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:53,610 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:53,610 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {29#false} is VALID [2020-07-28 17:53:53,610 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {29#false} is VALID [2020-07-28 17:53:53,611 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:53,611 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {29#false} is VALID [2020-07-28 17:53:53,611 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:53,612 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {29#false} is VALID [2020-07-28 17:53:53,612 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:53,614 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 17:53:53,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:53,632 INFO L280 TraceCheckUtils]: 9: Hoare triple {29#false} assume !false; {29#false} is VALID [2020-07-28 17:53:53,633 INFO L280 TraceCheckUtils]: 8: Hoare triple {29#false} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {29#false} is VALID [2020-07-28 17:53:53,633 INFO L280 TraceCheckUtils]: 7: Hoare triple {29#false} assume !main_#t~short10; {29#false} is VALID [2020-07-28 17:53:53,633 INFO L280 TraceCheckUtils]: 6: Hoare triple {29#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {29#false} is VALID [2020-07-28 17:53:53,634 INFO L280 TraceCheckUtils]: 5: Hoare triple {29#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {29#false} is VALID [2020-07-28 17:53:53,634 INFO L280 TraceCheckUtils]: 4: Hoare triple {29#false} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {29#false} is VALID [2020-07-28 17:53:53,635 INFO L280 TraceCheckUtils]: 3: Hoare triple {29#false} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {29#false} is VALID [2020-07-28 17:53:53,635 INFO L280 TraceCheckUtils]: 2: Hoare triple {28#true} assume !true; {29#false} is VALID [2020-07-28 17:53:53,636 INFO L280 TraceCheckUtils]: 1: Hoare triple {28#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {28#true} is VALID [2020-07-28 17:53:53,636 INFO L280 TraceCheckUtils]: 0: Hoare triple {28#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {28#true} is VALID [2020-07-28 17:53:53,637 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 17:53:53,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [118907995] [2020-07-28 17:53:53,639 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:53,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:53,640 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1616285351] [2020-07-28 17:53:53,646 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:53,647 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:53,651 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:53,682 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:53,682 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:53,683 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:53,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:53,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:53,695 INFO L87 Difference]: Start difference. First operand 25 states. Second operand 2 states. [2020-07-28 17:53:53,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:53,793 INFO L93 Difference]: Finished difference Result 48 states and 72 transitions. [2020-07-28 17:53:53,793 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:53,793 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:53,794 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:53,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:53,802 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:53,803 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:53,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 72 transitions. [2020-07-28 17:53:53,806 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 72 transitions. [2020-07-28 17:53:53,947 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 72 edges. 72 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:53,958 INFO L225 Difference]: With dead ends: 48 [2020-07-28 17:53:53,959 INFO L226 Difference]: Without dead ends: 22 [2020-07-28 17:53:53,963 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 18 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 17:53:53,981 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2020-07-28 17:53:53,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 22. [2020-07-28 17:53:53,999 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:54,000 INFO L82 GeneralOperation]: Start isEquivalent. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:54,000 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:54,001 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:54,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:54,004 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:54,004 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:54,005 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:54,005 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:54,005 INFO L74 IsIncluded]: Start isIncluded. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:54,005 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 22 states. [2020-07-28 17:53:54,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:54,008 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2020-07-28 17:53:54,009 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:54,009 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:54,009 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:54,010 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:54,010 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:54,010 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 22 states. [2020-07-28 17:53:54,012 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 25 transitions. [2020-07-28 17:53:54,014 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 25 transitions. Word has length 10 [2020-07-28 17:53:54,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:54,015 INFO L479 AbstractCegarLoop]: Abstraction has 22 states and 25 transitions. [2020-07-28 17:53:54,015 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:54,015 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 25 transitions. [2020-07-28 17:53:54,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:54,016 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:54,016 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:54,228 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:54,229 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:54,230 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:54,230 INFO L82 PathProgramCache]: Analyzing trace with hash -390192032, now seen corresponding path program 1 times [2020-07-28 17:53:54,231 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:54,232 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [545619681] [2020-07-28 17:53:54,232 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 17:53:54,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:54,306 INFO L263 TraceCheckSpWp]: Trace formula consists of 31 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:53:54,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:54,322 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:54,473 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {220#true} is VALID [2020-07-28 17:53:54,474 INFO L280 TraceCheckUtils]: 1: Hoare triple {220#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {228#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:54,478 INFO L280 TraceCheckUtils]: 2: Hoare triple {228#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {232#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:54,479 INFO L280 TraceCheckUtils]: 3: Hoare triple {232#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} goto; {232#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:54,483 INFO L280 TraceCheckUtils]: 4: Hoare triple {232#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {239#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0)))} is VALID [2020-07-28 17:53:54,486 INFO L280 TraceCheckUtils]: 5: Hoare triple {239#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0)))} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {221#false} is VALID [2020-07-28 17:53:54,486 INFO L280 TraceCheckUtils]: 6: Hoare triple {221#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {221#false} is VALID [2020-07-28 17:53:54,486 INFO L280 TraceCheckUtils]: 7: Hoare triple {221#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {221#false} is VALID [2020-07-28 17:53:54,487 INFO L280 TraceCheckUtils]: 8: Hoare triple {221#false} assume !main_#t~short10; {221#false} is VALID [2020-07-28 17:53:54,487 INFO L280 TraceCheckUtils]: 9: Hoare triple {221#false} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {221#false} is VALID [2020-07-28 17:53:54,488 INFO L280 TraceCheckUtils]: 10: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:54,490 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 17:53:54,490 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:54,643 INFO L280 TraceCheckUtils]: 10: Hoare triple {221#false} assume !false; {221#false} is VALID [2020-07-28 17:53:54,644 INFO L280 TraceCheckUtils]: 9: Hoare triple {221#false} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {221#false} is VALID [2020-07-28 17:53:54,644 INFO L280 TraceCheckUtils]: 8: Hoare triple {221#false} assume !main_#t~short10; {221#false} is VALID [2020-07-28 17:53:54,644 INFO L280 TraceCheckUtils]: 7: Hoare triple {221#false} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {221#false} is VALID [2020-07-28 17:53:54,645 INFO L280 TraceCheckUtils]: 6: Hoare triple {221#false} assume 255bv32 == trunc_float_~exponent_less_127~0;trunc_float_#res := ~fp.add~FLOAT(currentRoundingMode, trunc_float_~x, trunc_float_~x); {221#false} is VALID [2020-07-28 17:53:54,646 INFO L280 TraceCheckUtils]: 5: Hoare triple {273#(bvslt ULTIMATE.start_trunc_float_~exponent_less_127~0 (_ bv23 32))} assume !~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {221#false} is VALID [2020-07-28 17:53:54,647 INFO L280 TraceCheckUtils]: 4: Hoare triple {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {273#(bvslt ULTIMATE.start_trunc_float_~exponent_less_127~0 (_ bv23 32))} is VALID [2020-07-28 17:53:54,648 INFO L280 TraceCheckUtils]: 3: Hoare triple {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} goto; {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} is VALID [2020-07-28 17:53:54,655 INFO L280 TraceCheckUtils]: 2: Hoare triple {284#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_2_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)) (not (= ULTIMATE.start_trunc_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3))))))} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {277#(bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))} is VALID [2020-07-28 17:53:54,658 INFO L280 TraceCheckUtils]: 1: Hoare triple {220#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {284#(forall ((v_skolemized_v_prenex_2_3 (_ BitVec 32))) (or (bvslt (bvadd (bvashr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_2_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)) (not (= ULTIMATE.start_trunc_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_2_3) ((_ extract 30 23) v_skolemized_v_prenex_2_3) ((_ extract 22 0) v_skolemized_v_prenex_2_3))))))} is VALID [2020-07-28 17:53:54,659 INFO L280 TraceCheckUtils]: 0: Hoare triple {220#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {220#true} is VALID [2020-07-28 17:53:54,660 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 17:53:54,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [545619681] [2020-07-28 17:53:54,660 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:54,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:53:54,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [940909916] [2020-07-28 17:53:54,663 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-07-28 17:53:54,663 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:54,663 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:53:54,711 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:54,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:53:54,711 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:54,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:53:54,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:53:54,713 INFO L87 Difference]: Start difference. First operand 22 states and 25 transitions. Second operand 8 states. [2020-07-28 17:53:55,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,187 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2020-07-28 17:53:55,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:53:55,187 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 11 [2020-07-28 17:53:55,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:55,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:55,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 17:53:55,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:55,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 35 transitions. [2020-07-28 17:53:55,191 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 35 transitions. [2020-07-28 17:53:55,306 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:55,307 INFO L225 Difference]: With dead ends: 32 [2020-07-28 17:53:55,308 INFO L226 Difference]: Without dead ends: 19 [2020-07-28 17:53:55,309 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-07-28 17:53:55,309 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-28 17:53:55,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-28 17:53:55,322 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:55,322 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:55,322 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:55,322 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:55,324 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,324 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-28 17:53:55,324 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:55,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:55,325 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:55,325 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:55,325 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:55,327 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,327 INFO L93 Difference]: Finished difference Result 19 states and 19 transitions. [2020-07-28 17:53:55,328 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:55,328 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:55,328 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:55,328 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:55,329 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:55,329 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-28 17:53:55,330 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 19 transitions. [2020-07-28 17:53:55,330 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 19 transitions. Word has length 11 [2020-07-28 17:53:55,331 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:55,331 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 19 transitions. [2020-07-28 17:53:55,331 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:53:55,331 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 19 transitions. [2020-07-28 17:53:55,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 17:53:55,332 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:55,332 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:55,545 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:55,546 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:55,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:55,546 INFO L82 PathProgramCache]: Analyzing trace with hash -675711906, now seen corresponding path program 1 times [2020-07-28 17:53:55,548 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:55,549 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1710820889] [2020-07-28 17:53:55,549 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 17:53:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:55,609 INFO L263 TraceCheckSpWp]: Trace formula consists of 39 conjuncts, 6 conjunts are in the unsatisfiable core [2020-07-28 17:53:55,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:55,622 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:55,727 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:55,751 INFO L280 TraceCheckUtils]: 0: Hoare triple {399#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {399#true} is VALID [2020-07-28 17:53:55,752 INFO L280 TraceCheckUtils]: 1: Hoare triple {399#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {399#true} is VALID [2020-07-28 17:53:55,752 INFO L280 TraceCheckUtils]: 2: Hoare triple {399#true} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {399#true} is VALID [2020-07-28 17:53:55,753 INFO L280 TraceCheckUtils]: 3: Hoare triple {399#true} goto; {399#true} is VALID [2020-07-28 17:53:55,754 INFO L280 TraceCheckUtils]: 4: Hoare triple {399#true} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} is VALID [2020-07-28 17:53:55,755 INFO L280 TraceCheckUtils]: 5: Hoare triple {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} is VALID [2020-07-28 17:53:55,756 INFO L280 TraceCheckUtils]: 6: Hoare triple {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} is VALID [2020-07-28 17:53:55,758 INFO L280 TraceCheckUtils]: 7: Hoare triple {416#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~union3;havoc trunc_float_#t~mem2;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {426#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0))) ULTIMATE.start_trunc_float_~x))} is VALID [2020-07-28 17:53:55,759 INFO L280 TraceCheckUtils]: 8: Hoare triple {426#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0))) ULTIMATE.start_trunc_float_~x))} goto; {426#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0))) ULTIMATE.start_trunc_float_~x))} is VALID [2020-07-28 17:53:55,766 INFO L280 TraceCheckUtils]: 9: Hoare triple {426#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0))) ULTIMATE.start_trunc_float_~x))} trunc_float_#res := trunc_float_~x; {433#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= |ULTIMATE.start_trunc_float_#res| (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))} is VALID [2020-07-28 17:53:55,769 INFO L280 TraceCheckUtils]: 10: Hoare triple {433#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (= |ULTIMATE.start_trunc_float_#res| (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {437#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,773 INFO L280 TraceCheckUtils]: 11: Hoare triple {437#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10; {437#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,774 INFO L280 TraceCheckUtils]: 12: Hoare triple {437#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {400#false} is VALID [2020-07-28 17:53:55,774 INFO L280 TraceCheckUtils]: 13: Hoare triple {400#false} assume !false; {400#false} is VALID [2020-07-28 17:53:55,775 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 17:53:55,775 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:55,875 INFO L280 TraceCheckUtils]: 13: Hoare triple {400#false} assume !false; {400#false} is VALID [2020-07-28 17:53:55,876 INFO L280 TraceCheckUtils]: 12: Hoare triple {437#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {400#false} is VALID [2020-07-28 17:53:55,876 INFO L280 TraceCheckUtils]: 11: Hoare triple {437#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10; {437#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,877 INFO L280 TraceCheckUtils]: 10: Hoare triple {456#(fp.eq |ULTIMATE.start_trunc_float_#res| (fp.neg (_ +zero 8 24)))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {437#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:55,878 INFO L280 TraceCheckUtils]: 9: Hoare triple {460#(fp.eq ULTIMATE.start_trunc_float_~x (fp.neg (_ +zero 8 24)))} trunc_float_#res := trunc_float_~x; {456#(fp.eq |ULTIMATE.start_trunc_float_#res| (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,880 INFO L280 TraceCheckUtils]: 8: Hoare triple {460#(fp.eq ULTIMATE.start_trunc_float_~x (fp.neg (_ +zero 8 24)))} goto; {460#(fp.eq ULTIMATE.start_trunc_float_~x (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,881 INFO L280 TraceCheckUtils]: 7: Hoare triple {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~union3;havoc trunc_float_#t~mem2;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {460#(fp.eq ULTIMATE.start_trunc_float_~x (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,883 INFO L280 TraceCheckUtils]: 6: Hoare triple {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,887 INFO L280 TraceCheckUtils]: 5: Hoare triple {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,890 INFO L280 TraceCheckUtils]: 4: Hoare triple {399#true} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {467#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:55,890 INFO L280 TraceCheckUtils]: 3: Hoare triple {399#true} goto; {399#true} is VALID [2020-07-28 17:53:55,890 INFO L280 TraceCheckUtils]: 2: Hoare triple {399#true} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {399#true} is VALID [2020-07-28 17:53:55,891 INFO L280 TraceCheckUtils]: 1: Hoare triple {399#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {399#true} is VALID [2020-07-28 17:53:55,891 INFO L280 TraceCheckUtils]: 0: Hoare triple {399#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {399#true} is VALID [2020-07-28 17:53:55,892 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 17:53:55,892 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1710820889] [2020-07-28 17:53:55,892 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:55,893 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 9 [2020-07-28 17:53:55,893 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [558602136] [2020-07-28 17:53:55,893 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-07-28 17:53:55,894 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:55,894 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 17:53:55,935 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:55,936 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 17:53:55,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:55,937 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 17:53:55,937 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2020-07-28 17:53:55,938 INFO L87 Difference]: Start difference. First operand 19 states and 19 transitions. Second operand 9 states. [2020-07-28 17:53:56,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,416 INFO L93 Difference]: Finished difference Result 22 states and 21 transitions. [2020-07-28 17:53:56,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:53:56,416 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 14 [2020-07-28 17:53:56,416 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:56,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:53:56,418 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2020-07-28 17:53:56,418 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:53:56,419 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 21 transitions. [2020-07-28 17:53:56,419 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 21 transitions. [2020-07-28 17:53:56,491 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:56,492 INFO L225 Difference]: With dead ends: 22 [2020-07-28 17:53:56,492 INFO L226 Difference]: Without dead ends: 19 [2020-07-28 17:53:56,493 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 19 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=47, Invalid=85, Unknown=0, NotChecked=0, Total=132 [2020-07-28 17:53:56,493 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2020-07-28 17:53:56,509 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2020-07-28 17:53:56,509 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:56,509 INFO L82 GeneralOperation]: Start isEquivalent. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:56,509 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:56,509 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:56,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,512 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:56,512 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:56,512 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:56,513 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:56,513 INFO L74 IsIncluded]: Start isIncluded. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:56,513 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 19 states. [2020-07-28 17:53:56,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:56,514 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:56,514 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:56,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:56,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:56,515 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:56,515 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:56,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2020-07-28 17:53:56,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 18 transitions. [2020-07-28 17:53:56,517 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 18 transitions. Word has length 14 [2020-07-28 17:53:56,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:56,517 INFO L479 AbstractCegarLoop]: Abstraction has 19 states and 18 transitions. [2020-07-28 17:53:56,517 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 17:53:56,517 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 18 transitions. [2020-07-28 17:53:56,518 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 17:53:56,518 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:56,518 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:56,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:53:56,723 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:56,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:56,724 INFO L82 PathProgramCache]: Analyzing trace with hash 438125939, now seen corresponding path program 1 times [2020-07-28 17:53:56,725 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:56,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1626094260] [2020-07-28 17:53:56,726 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 17:53:56,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:56,790 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 19 conjunts are in the unsatisfiable core [2020-07-28 17:53:56,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:56,808 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:56,992 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:57,043 INFO L280 TraceCheckUtils]: 0: Hoare triple {584#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {584#true} is VALID [2020-07-28 17:53:57,044 INFO L280 TraceCheckUtils]: 1: Hoare triple {584#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:57,048 INFO L280 TraceCheckUtils]: 2: Hoare triple {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {596#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,049 INFO L280 TraceCheckUtils]: 3: Hoare triple {596#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} goto; {596#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,051 INFO L280 TraceCheckUtils]: 4: Hoare triple {596#(= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24)))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:57,052 INFO L280 TraceCheckUtils]: 5: Hoare triple {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:57,052 INFO L280 TraceCheckUtils]: 6: Hoare triple {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} is VALID [2020-07-28 17:53:57,055 INFO L280 TraceCheckUtils]: 7: Hoare triple {603#(exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0)))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~union3;havoc trunc_float_#t~mem2;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:57,056 INFO L280 TraceCheckUtils]: 8: Hoare triple {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} goto; {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} is VALID [2020-07-28 17:53:57,057 INFO L280 TraceCheckUtils]: 9: Hoare triple {592#(= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x)} trunc_float_#res := trunc_float_~x; {619#(= |ULTIMATE.start_trunc_float_#res| (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,058 INFO L280 TraceCheckUtils]: 10: Hoare triple {619#(= |ULTIMATE.start_trunc_float_#res| (fp.neg (_ +zero 8 24)))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {623#(= ULTIMATE.start_main_~res~0 (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,059 INFO L280 TraceCheckUtils]: 11: Hoare triple {623#(= ULTIMATE.start_main_~res~0 (fp.neg (_ +zero 8 24)))} assume main_#t~short10;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem6, __signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~1;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~1; {627#(= ULTIMATE.start___signbit_float_~x (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,061 INFO L280 TraceCheckUtils]: 12: Hoare triple {627#(= ULTIMATE.start___signbit_float_~x (fp.neg (_ +zero 8 24)))} 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~mem6 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~1 := __signbit_float_#t~mem6;call write~intFLOATTYPE4(__signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~union7;havoc __signbit_float_#t~mem6;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; {631#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,062 INFO L280 TraceCheckUtils]: 13: Hoare triple {631#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) (fp.neg (_ +zero 8 24)))} goto; {631#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) (fp.neg (_ +zero 8 24)))} is VALID [2020-07-28 17:53:57,064 INFO L280 TraceCheckUtils]: 14: Hoare triple {631#(= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) (fp.neg (_ +zero 8 24)))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~1) then 1bv32 else 0bv32); {638#(= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:57,065 INFO L280 TraceCheckUtils]: 15: Hoare triple {638#(= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32))} main_#t~ret9 := __signbit_float_#res;main_#t~short10 := 1bv32 == main_#t~ret9; {642#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:57,065 INFO L280 TraceCheckUtils]: 16: Hoare triple {642#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {585#false} is VALID [2020-07-28 17:53:57,065 INFO L280 TraceCheckUtils]: 17: Hoare triple {585#false} assume !false; {585#false} is VALID [2020-07-28 17:53:57,067 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 17:53:57,067 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:57,696 INFO L280 TraceCheckUtils]: 17: Hoare triple {585#false} assume !false; {585#false} is VALID [2020-07-28 17:53:57,697 INFO L280 TraceCheckUtils]: 16: Hoare triple {642#|ULTIMATE.start_main_#t~short10|} assume !main_#t~short10;havoc main_#t~ret9;havoc main_#t~short10; {585#false} is VALID [2020-07-28 17:53:57,698 INFO L280 TraceCheckUtils]: 15: Hoare triple {638#(= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32))} main_#t~ret9 := __signbit_float_#res;main_#t~short10 := 1bv32 == main_#t~ret9; {642#|ULTIMATE.start_main_#t~short10|} is VALID [2020-07-28 17:53:57,699 INFO L280 TraceCheckUtils]: 14: Hoare triple {658#(not (= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32)))} __signbit_float_#res := (if 0bv32 != ~bvand32(2147483648bv32, __signbit_float_~w~1) then 1bv32 else 0bv32); {638#(= (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:57,700 INFO L280 TraceCheckUtils]: 13: Hoare triple {658#(not (= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32)))} goto; {658#(not (= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32)))} is VALID [2020-07-28 17:53:57,704 INFO L280 TraceCheckUtils]: 12: Hoare triple {665#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) 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~mem6 := read~intINTTYPE4(__signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);__signbit_float_~w~1 := __signbit_float_#t~mem6;call write~intFLOATTYPE4(__signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, 4bv32);havoc __signbit_float_#t~union7;havoc __signbit_float_#t~mem6;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; {658#(not (= (bvand (_ bv2147483648 32) ULTIMATE.start___signbit_float_~w~1) (_ bv0 32)))} is VALID [2020-07-28 17:53:57,706 INFO L280 TraceCheckUtils]: 11: Hoare triple {669#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= ULTIMATE.start_main_~res~0 (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} assume main_#t~short10;__signbit_float_#in~x := main_~res~0;havoc __signbit_float_#res;havoc __signbit_float_#t~mem6, __signbit_float_#t~union7, __signbit_float_~#gf_u~1.base, __signbit_float_~#gf_u~1.offset, __signbit_float_~x, __signbit_float_~w~1;__signbit_float_~x := __signbit_float_#in~x;havoc __signbit_float_~w~1; {665#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start___signbit_float_~x))))} is VALID [2020-07-28 17:53:57,709 INFO L280 TraceCheckUtils]: 10: Hoare triple {673#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) |ULTIMATE.start_trunc_float_#res|)) (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)))))} main_#t~ret8 := trunc_float_#res;main_~res~0 := main_#t~ret8;havoc main_#t~ret8;main_#t~short10 := ~fp.eq~FLOAT(main_~res~0, ~fp.neg~FLOAT(~Pluszero~FLOAT())); {669#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= ULTIMATE.start_main_~res~0 (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} is VALID [2020-07-28 17:53:57,710 INFO L280 TraceCheckUtils]: 9: Hoare triple {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} trunc_float_#res := trunc_float_~x; {673#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) |ULTIMATE.start_trunc_float_#res|)) (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32)))))} is VALID [2020-07-28 17:53:57,711 INFO L280 TraceCheckUtils]: 8: Hoare triple {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} goto; {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:57,714 INFO L280 TraceCheckUtils]: 7: Hoare triple {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} call trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(trunc_float_~signbit~0, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);call trunc_float_#t~mem2 := read~intFLOATTYPE4(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);trunc_float_~x := trunc_float_#t~mem2;call write~intINTTYPE4(trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, 4bv32);havoc trunc_float_#t~union3;havoc trunc_float_#t~mem2;call ULTIMATE.dealloc(trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset);havoc trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset; {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:57,715 INFO L280 TraceCheckUtils]: 6: Hoare triple {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 0bv32); {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} is VALID [2020-07-28 17:53:57,716 INFO L280 TraceCheckUtils]: 5: Hoare triple {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} assume ~bvslt32(trunc_float_~exponent_less_127~0, 23bv32); {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} is VALID [2020-07-28 17:53:57,718 INFO L280 TraceCheckUtils]: 4: Hoare triple {694#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} trunc_float_~signbit~0 := ~bvand32(2147483648bv32, trunc_float_~w~0);trunc_float_~exponent_less_127~0 := ~bvsub32(~bvashr32(~bvand32(2139095040bv32, trunc_float_~w~0), 23bv32), 127bv32); {684#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~signbit~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~signbit~0)) (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5))))))} is VALID [2020-07-28 17:53:57,724 INFO L280 TraceCheckUtils]: 3: Hoare triple {694#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} goto; {694#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} is VALID [2020-07-28 17:53:57,728 INFO L280 TraceCheckUtils]: 2: Hoare triple {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} call trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(trunc_float_~x, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);call trunc_float_#t~mem0 := read~intINTTYPE4(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);trunc_float_~w~0 := trunc_float_#t~mem0;call write~intFLOATTYPE4(trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, 4bv32);havoc trunc_float_#t~union1;havoc trunc_float_#t~mem0;call ULTIMATE.dealloc(trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset);havoc trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset; {694#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) (fp ((_ extract 31 31) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 30 23) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)) ((_ extract 22 0) (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0)))))))} is VALID [2020-07-28 17:53:57,731 INFO L280 TraceCheckUtils]: 1: Hoare triple {584#true} havoc main_#res;havoc main_#t~ret8, main_#t~ret9, main_#t~short10, main_~x~0, main_~res~0;main_~x~0 := ~fp.neg~FLOAT(~Pluszero~FLOAT());trunc_float_#in~x := main_~x~0;havoc trunc_float_#res;havoc trunc_float_#t~mem0, trunc_float_#t~union1, trunc_float_~#gf_u~0.base, trunc_float_~#gf_u~0.offset, trunc_float_#t~mem2, trunc_float_#t~union3, trunc_float_~#sf_u~0.base, trunc_float_~#sf_u~0.offset, trunc_float_#t~mem4, trunc_float_#t~union5, trunc_float_~#sf_u~1.base, trunc_float_~#sf_u~1.offset, trunc_float_~x, trunc_float_~signbit~0, trunc_float_~w~0, trunc_float_~exponent_less_127~0;trunc_float_~x := trunc_float_#in~x;havoc trunc_float_~signbit~0;havoc trunc_float_~w~0;havoc trunc_float_~exponent_less_127~0; {677#(forall ((v_ULTIMATE.start___signbit_float_~w~1_5 (_ BitVec 32))) (or (not (= (bvand (_ bv2147483648 32) v_ULTIMATE.start___signbit_float_~w~1_5) (_ bv0 32))) (not (= (fp ((_ extract 31 31) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 30 23) v_ULTIMATE.start___signbit_float_~w~1_5) ((_ extract 22 0) v_ULTIMATE.start___signbit_float_~w~1_5)) ULTIMATE.start_trunc_float_~x))))} is VALID [2020-07-28 17:53:57,731 INFO L280 TraceCheckUtils]: 0: Hoare triple {584#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {584#true} is VALID [2020-07-28 17:53:57,734 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 17:53:57,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1626094260] [2020-07-28 17:53:57,734 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:57,734 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11, 11] imperfect sequences [] total 18 [2020-07-28 17:53:57,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732266284] [2020-07-28 17:53:57,735 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-07-28 17:53:57,736 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:57,736 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 18 states. [2020-07-28 17:53:57,813 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 32 edges. 32 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:57,813 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-07-28 17:53:57,813 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:57,813 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-07-28 17:53:57,814 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=40, Invalid=266, Unknown=0, NotChecked=0, Total=306 [2020-07-28 17:53:57,814 INFO L87 Difference]: Start difference. First operand 19 states and 18 transitions. Second operand 18 states. [2020-07-28 17:53:58,768 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,768 INFO L93 Difference]: Finished difference Result 19 states and 18 transitions. [2020-07-28 17:53:58,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 17:53:58,769 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2020-07-28 17:53:58,769 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:58,769 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:58,771 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-07-28 17:53:58,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:58,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 18 transitions. [2020-07-28 17:53:58,773 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 18 transitions. [2020-07-28 17:53:58,833 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 17:53:58,834 INFO L225 Difference]: With dead ends: 19 [2020-07-28 17:53:58,834 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:58,835 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 16 SyntacticMatches, 2 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=148, Invalid=452, Unknown=0, NotChecked=0, Total=600 [2020-07-28 17:53:58,835 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:58,836 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:58,836 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:58,836 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:58,836 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:58,837 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:58,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,837 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:58,837 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:58,838 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:58,838 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:58,838 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:58,838 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:58,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,838 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:58,839 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:58,839 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:58,839 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:58,839 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:58,839 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:58,839 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:58,839 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:58,840 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 18 [2020-07-28 17:53:58,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:58,840 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:58,840 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-07-28 17:53:58,840 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:58,840 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:59,041 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-07-28 17:53:59,044 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:53:59,485 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 45 [2020-07-28 17:53:59,494 INFO L264 CegarLoopResult]: At program point L52(lines 43 53) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start_trunc_float_~x) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short10| (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= (_ bv0 32) (bvadd |ULTIMATE.start___signbit_float_#res| (_ bv4294967295 32))) (= (fp ((_ extract 31 31) ULTIMATE.start___signbit_float_~w~1) ((_ extract 30 23) ULTIMATE.start___signbit_float_~w~1) ((_ extract 22 0) ULTIMATE.start___signbit_float_~w~1)) .cse0) (= ULTIMATE.start___signbit_float_~x .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0))) [2020-07-28 17:53:59,495 INFO L264 CegarLoopResult]: At program point L40(lines 12 41) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start_trunc_float_~x) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= |ULTIMATE.start_trunc_float_#res| .cse0))) [2020-07-28 17:53:59,495 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:53:59,495 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:53:59,495 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:53:59,495 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 67) no Hoare annotation was computed. [2020-07-28 17:53:59,495 INFO L268 CegarLoopResult]: For program point L24-1(lines 24 28) no Hoare annotation was computed. [2020-07-28 17:53:59,495 INFO L264 CegarLoopResult]: At program point L24-2(lines 24 28) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start_trunc_float_~x) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))))) [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L66(line 66) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L66-2(lines 66 69) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L21(lines 21 39) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L21-1(lines 21 39) no Hoare annotation was computed. [2020-07-28 17:53:59,496 INFO L268 CegarLoopResult]: For program point L46-1(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L264 CegarLoopResult]: At program point L46-2(lines 46 50) the Hoare annotation is: (let ((.cse0 (fp.neg (_ +zero 8 24)))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) .cse0) (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvadd (bvashr (bvand (_ bv2139095040 32) ULTIMATE.start_trunc_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_trunc_float_~exponent_less_127~0))) (= .cse0 ULTIMATE.start_trunc_float_~x) (= ULTIMATE.start_main_~res~0 .cse0) |ULTIMATE.start_main_#t~short10| (exists ((ULTIMATE.start_trunc_float_~w~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start_trunc_float_~w~0) ((_ extract 30 23) ULTIMATE.start_trunc_float_~w~0) ((_ extract 22 0) ULTIMATE.start_trunc_float_~w~0)) (fp.neg (_ +zero 8 24))) (= (bvand (_ bv2147483648 32) ULTIMATE.start_trunc_float_~w~0) ULTIMATE.start_trunc_float_~signbit~0))) (= ULTIMATE.start___signbit_float_~x .cse0) (= |ULTIMATE.start_trunc_float_#res| .cse0))) [2020-07-28 17:53:59,497 INFO L268 CegarLoopResult]: For program point L46-3(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L271 CegarLoopResult]: At program point L71(lines 55 72) the Hoare annotation is: true [2020-07-28 17:53:59,497 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L268 CegarLoopResult]: For program point L30-1(lines 30 34) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L264 CegarLoopResult]: At program point L30-2(lines 30 34) the Hoare annotation is: false [2020-07-28 17:53:59,497 INFO L268 CegarLoopResult]: For program point L22(lines 22 35) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L268 CegarLoopResult]: For program point L14-1(lines 14 18) no Hoare annotation was computed. [2020-07-28 17:53:59,497 INFO L264 CegarLoopResult]: At program point L14-2(lines 14 18) the Hoare annotation is: (= (fp.neg (_ +zero 8 24)) ULTIMATE.start_trunc_float_~x) [2020-07-28 17:53:59,498 INFO L268 CegarLoopResult]: For program point L14-3(lines 14 18) no Hoare annotation was computed. [2020-07-28 17:53:59,501 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:59,501 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:59,501 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L14-1 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L14-3 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L21 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L22 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:59,502 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L21-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L24-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L30-1 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:59,503 WARN L170 areAnnotationChecker]: L66 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L46-3 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:59,504 WARN L170 areAnnotationChecker]: L67 has no Hoare annotation [2020-07-28 17:53:59,505 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:59,505 WARN L170 areAnnotationChecker]: L66-2 has no Hoare annotation [2020-07-28 17:53:59,505 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:59,505 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 17:53:59,509 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,510 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,511 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,516 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,517 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,518 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,521 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,522 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,524 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,525 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,527 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,528 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,529 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,530 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,531 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,532 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,533 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,534 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,535 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,536 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:59 BoogieIcfgContainer [2020-07-28 17:53:59,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:59,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:59,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:59,541 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:59,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:53" (3/4) ... [2020-07-28 17:53:59,546 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:53:59,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 13 nodes and edges [2020-07-28 17:53:59,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-07-28 17:53:59,558 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:53:59,584 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) [2020-07-28 17:53:59,584 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-07-28 17:53:59,585 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-07-28 17:53:59,585 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) [2020-07-28 17:53:59,614 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:53:59,614 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:59,616 INFO L168 Benchmark]: Toolchain (without parser) took 7311.09 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 208.1 MB). Free memory was 952.2 MB in the beginning and 1.0 GB in the end (delta: -61.0 MB). Peak memory consumption was 147.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,617 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 17:53:59,617 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,618 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,618 INFO L168 Benchmark]: Boogie Preprocessor took 43.04 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 17:53:59,619 INFO L168 Benchmark]: RCFGBuilder took 573.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,620 INFO L168 Benchmark]: TraceAbstraction took 6189.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.7 MB). Peak memory consumption was 140.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,620 INFO L168 Benchmark]: Witness Printer took 73.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:59,623 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 313.25 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 941.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 110.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -191.7 MB). Peak memory consumption was 15.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.04 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 573.76 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 37.0 MB). Peak memory consumption was 37.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 6189.29 ms. Allocated memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 65.0 MB). Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 75.7 MB). Peak memory consumption was 140.7 MB. Max. memory is 11.5 GB. * Witness Printer took 73.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 7.2 MB). Peak memory consumption was 7.2 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_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 67]: 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: 24]: Loop Invariant [2020-07-28 17:53:59,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,634 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,635 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit) - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 46]: Loop Invariant [2020-07-28 17:53:59,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,638 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,639 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,640 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,641 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 55]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 12]: Loop Invariant [2020-07-28 17:53:59,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,643 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,644 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,645 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,646 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,647 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: (((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - InvariantResult [Line: 43]: Loop Invariant [2020-07-28 17:53:59,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,648 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,649 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,651 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] [2020-07-28 17:53:59,652 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start_trunc_float_~w~0,QUANTIFIED] Derived loop invariant: ((((((((~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvadd64(~bvashr32(~bvand32(2139095040bv32, ULTIMATE.start_trunc_float_~w~0), 23bv32), 4294967169bv32) == exponent_less_127)) && ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) == x) && res == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && aux-res == -0.0f && __signbit_float(res) == 1-aux) && (\exists ULTIMATE.start_trunc_float_~w~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start_trunc_float_~w~0[31:31], ULTIMATE.start_trunc_float_~w~0[30:23], ULTIMATE.start_trunc_float_~w~0[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) && ~bvand32(2147483648bv32, ULTIMATE.start_trunc_float_~w~0) == signbit)) && 0bv32 == ~bvadd64(\result, 4294967295bv32)) && ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]) == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && x == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE())) && \result == ~fp.neg~FLOAT(~Pluszero~LONGDOUBLE()) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 25 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.6s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 2.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.4s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 63 SDtfs, 168 SDslu, 91 SDs, 0 SdLazy, 82 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 112 GetRequests, 67 SyntacticMatches, 3 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 3 DeprecatedPredicates, 41 ImplicationChecksByTransitivity, 1.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred 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, 7 LocationsWithAnnotation, 7 PreInvPairs, 13 NumberOfFragments, 263 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 7 FomulaSimplificationsInter, 121 FormulaSimplificationTreeSizeReductionInter, 0.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 53 NumberOfCodeBlocks, 53 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 98 ConstructedInterpolants, 22 QuantifiedInterpolants, 9249 SizeOfPredicates, 27 NumberOfNonLiveVariables, 146 ConjunctsInSsa, 34 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...