./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1091.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_1091.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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c ........................................................................................................................................................................................................................................................................................................................................................................... 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_1091.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 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 17:53:46,842 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:46,844 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:46,856 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:46,857 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:46,858 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:46,860 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:46,862 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:46,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:46,864 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:46,865 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:46,867 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:46,867 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:46,868 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:46,869 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:46,871 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:46,871 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:46,872 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:46,875 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:46,879 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:46,884 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:46,885 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:46,889 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:46,890 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:46,895 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:46,896 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:46,896 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:46,897 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:46,898 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:46,899 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:46,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:46,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:46,903 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:46,905 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:46,908 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:46,908 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:46,909 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:46,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:46,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:46,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:46,913 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:46,914 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:53:46,939 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:46,940 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:46,941 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:46,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:46,942 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:46,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:46,943 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:46,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:53:46,944 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:46,944 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:46,945 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:46,945 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:46,946 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:46,946 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:46,946 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:46,947 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:46,947 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:46,947 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:46,947 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:46,950 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:46,950 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:46,951 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:46,952 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:46,952 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:46,952 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:46,953 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:53:46,953 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:53:46,954 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:46,954 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:46,954 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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2020-07-28 17:53:47,256 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:47,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:47,274 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:47,275 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:47,276 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:47,276 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2020-07-28 17:53:47,344 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538d39069/12082ff4d38b4bb8b46afe7afb80212f/FLAGb0c4e2339 [2020-07-28 17:53:47,786 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:47,787 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2020-07-28 17:53:47,794 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538d39069/12082ff4d38b4bb8b46afe7afb80212f/FLAGb0c4e2339 [2020-07-28 17:53:48,177 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/538d39069/12082ff4d38b4bb8b46afe7afb80212f [2020-07-28 17:53:48,180 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:48,183 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:48,184 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:48,184 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:48,188 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:48,189 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,192 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26a96ca1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48, skipping insertion in model container [2020-07-28 17:53:48,192 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,200 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:48,226 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:48,445 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:48,449 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:48,480 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:48,503 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:48,504 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48 WrapperNode [2020-07-28 17:53:48,504 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:48,505 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:48,505 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:48,505 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:48,570 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,580 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,615 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:48,615 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:48,615 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:48,615 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:48,625 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,626 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,640 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (1/1) ... [2020-07-28 17:53:48,651 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:48,651 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:48,651 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:48,652 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:48,652 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (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 17:53:48,717 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:48,718 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:48,718 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:48,719 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:49,177 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:49,178 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-28 17:53:49,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:49 BoogieIcfgContainer [2020-07-28 17:53:49,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:49,183 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:49,183 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:49,186 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:49,187 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:48" (1/3) ... [2020-07-28 17:53:49,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6d35f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:49, skipping insertion in model container [2020-07-28 17:53:49,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:48" (2/3) ... [2020-07-28 17:53:49,188 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7c6d35f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:49, skipping insertion in model container [2020-07-28 17:53:49,188 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:49" (3/3) ... [2020-07-28 17:53:49,190 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091.c [2020-07-28 17:53:49,200 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:49,208 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:49,222 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:49,241 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:49,241 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:49,242 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:49,242 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:49,242 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:49,242 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:49,242 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:49,242 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:49,258 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-28 17:53:49,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:49,263 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:49,264 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:49,264 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:49,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:49,271 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2020-07-28 17:53:49,281 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:49,281 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [775485025] [2020-07-28 17:53:49,282 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:49,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:49,413 INFO L280 TraceCheckUtils]: 0: Hoare triple {29#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;~huge_ceil~0 := 1.0E30; {29#true} is VALID [2020-07-28 17:53:49,413 INFO L280 TraceCheckUtils]: 1: Hoare triple {29#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~someBinaryArithmeticFLOAToperation(0.0, 0.0);ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {29#true} is VALID [2020-07-28 17:53:49,414 INFO L280 TraceCheckUtils]: 2: Hoare triple {29#true} assume !true; {30#false} is VALID [2020-07-28 17:53:49,415 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#false} ceil_float_~ix~0 := ~bitwiseAnd(ceil_float_~i0~0, 2147483647);ceil_float_~j0~0 := (if (ceil_float_~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 <= 2147483647 then (ceil_float_~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 else (ceil_float_~ix~0 / 8388608 - 127) % 4294967296 % 4294967296 - 4294967296); {30#false} is VALID [2020-07-28 17:53:49,415 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#false} assume !(ceil_float_~j0~0 < 23); {30#false} is VALID [2020-07-28 17:53:49,416 INFO L280 TraceCheckUtils]: 5: Hoare triple {30#false} assume !!(ceil_float_~ix~0 % 4294967296 < 2139095040);ceil_float_#res := ceil_float_~x; {30#false} is VALID [2020-07-28 17:53:49,416 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#false} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if ~someBinaryFLOATComparisonOperation(isnan_float_~x, isnan_float_~x) then 1 else 0); {30#false} is VALID [2020-07-28 17:53:49,416 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#false} main_#t~ret5 := isnan_float_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647; {30#false} is VALID [2020-07-28 17:53:49,417 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#false} assume 0 == main_#t~ret5;havoc main_#t~ret5; {30#false} is VALID [2020-07-28 17:53:49,417 INFO L280 TraceCheckUtils]: 9: Hoare triple {30#false} assume !false; {30#false} is VALID [2020-07-28 17:53:49,420 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 17:53:49,421 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [775485025] [2020-07-28 17:53:49,422 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:49,422 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:49,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568560484] [2020-07-28 17:53:49,429 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:49,430 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:49,434 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:49,455 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 17:53:49,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:49,456 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:49,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:49,466 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:49,468 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-07-28 17:53:49,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:49,541 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2020-07-28 17:53:49,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:49,542 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:49,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:49,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:49,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 76 transitions. [2020-07-28 17:53:49,561 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:49,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 76 transitions. [2020-07-28 17:53:49,571 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 76 transitions. [2020-07-28 17:53:49,725 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:49,739 INFO L225 Difference]: With dead ends: 50 [2020-07-28 17:53:49,739 INFO L226 Difference]: Without dead ends: 23 [2020-07-28 17:53:49,742 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 17:53:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-28 17:53:49,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-28 17:53:49,777 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:49,778 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:49,779 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:49,779 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:49,782 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:49,782 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-07-28 17:53:49,783 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:49,783 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:49,783 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:49,783 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:49,784 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:49,786 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:49,787 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-07-28 17:53:49,787 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:49,787 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:49,788 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:49,788 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:49,788 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:49,788 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-28 17:53:49,791 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-07-28 17:53:49,792 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2020-07-28 17:53:49,792 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:49,793 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-07-28 17:53:49,793 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:49,793 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:49,793 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:49,794 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:49,794 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:49,794 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:49,794 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:49,795 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:49,795 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2020-07-28 17:53:49,795 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:49,795 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1984788957] [2020-07-28 17:53:49,796 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:49,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:49,921 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:49,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:49,977 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:50,021 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:53:50,022 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:53:50,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:50,082 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:50,082 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:50,082 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-28 17:53:50,083 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-28 17:53:50,083 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:50,083 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:50,083 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:50,084 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:53:50,084 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:53:50,084 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:50,085 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:50,085 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:53:50,093 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:53:50,093 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:50,093 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:50,093 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:53:50,094 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:53:50,094 WARN L170 areAnnotationChecker]: L53 has no Hoare annotation [2020-07-28 17:53:50,094 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:53:50,094 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:53:50,094 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:53:50,095 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:53:50,095 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:53:50,095 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:53:50,095 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:53:50,096 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:53:50,096 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:53:50,097 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:53:50,098 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:53:50,098 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-28 17:53:50,098 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:53:50,099 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:53:50,099 WARN L170 areAnnotationChecker]: L76 has no Hoare annotation [2020-07-28 17:53:50,099 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:50,100 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 17:53:50,106 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:50 BoogieIcfgContainer [2020-07-28 17:53:50,106 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:50,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:50,107 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:50,107 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:50,108 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:49" (3/4) ... [2020-07-28 17:53:50,112 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:53:50,112 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:50,117 INFO L168 Benchmark]: Toolchain (without parser) took 1933.08 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 961.6 MB in the beginning and 1.0 GB in the end (delta: -71.2 MB). Peak memory consumption was 58.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:50,118 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:50,121 INFO L168 Benchmark]: CACSL2BoogieTranslator took 320.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:50,122 INFO L168 Benchmark]: Boogie Procedure Inliner took 110.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:50,123 INFO L168 Benchmark]: Boogie Preprocessor took 35.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:50,124 INFO L168 Benchmark]: RCFGBuilder took 530.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:50,125 INFO L168 Benchmark]: TraceAbstraction took 923.04 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: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:50,126 INFO L168 Benchmark]: Witness Printer took 5.97 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 17:53:50,143 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 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 320.26 ms. Allocated memory is still 1.0 GB. Free memory was 961.6 MB in the beginning and 950.8 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 110.21 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -168.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 35.80 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 530.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.6 MB). Peak memory consumption was 33.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 923.04 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: 53.3 MB). Peak memory consumption was 53.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.97 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: 72]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 57, overapproximation of someBinaryArithmeticFLOAToperation at line 66, overapproximation of bitwiseAnd at line 21. Possible FailurePath: [L11] static const float huge_ceil = 1.0e30; VAL [huge_ceil=1000000000000000000000000000000] [L66] float x = 0.0f / 0.0f; [L14] __int32_t i0, j0; [L15] __uint32_t i, ix; VAL [huge_ceil=1000000000000000000000000000000] [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (i0) = gf_u.word [L21] ix = (i0 & 0x7fffffff) [L22] j0 = (ix >> 23) - 0x7f VAL [huge_ceil=1000000000000000000000000000000] [L23] COND FALSE !(j0 < 23) VAL [huge_ceil=1000000000000000000000000000000] [L43] COND FALSE !(!((ix) < 0x7f800000L)) [L46] return x; VAL [huge_ceil=1000000000000000000000000000000] [L68] float res = ceil_float(x); [L57] return x != x; VAL [huge_ceil=1000000000000000000000000000000] [L71] COND TRUE !isnan_float(res) [L72] __VERIFIER_error() VAL [huge_ceil=1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 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: 34 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=26occurred 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, 0.1s 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 17:53:52,137 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:52,139 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:52,159 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:52,159 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:52,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:52,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:52,173 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:52,178 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:52,181 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:52,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:52,185 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:52,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:52,187 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:52,188 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:52,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:52,191 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:52,192 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:52,194 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:52,198 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:52,202 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:52,203 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:52,204 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:52,208 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:52,211 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:52,211 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:52,211 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:52,213 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:52,214 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:52,215 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:52,215 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:52,216 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:52,217 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:52,218 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:52,220 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:52,220 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:52,221 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:52,221 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:52,221 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:52,222 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:52,224 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:52,225 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:52,255 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:52,256 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:52,257 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:52,258 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:52,258 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:52,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:52,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:52,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:52,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:52,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:52,261 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:52,261 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:52,261 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:52,261 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:52,262 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:52,262 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:52,262 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:52,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:52,263 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:52,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:52,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:52,266 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:52,266 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:52,268 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:52,268 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:52,268 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:52,269 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:52,269 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:52,269 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:52,269 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:52,270 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:52,270 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 -> 2b9d0a0d91195e42f3fdc78aff518a11cbbaa17c [2020-07-28 17:53:52,561 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:52,573 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:52,576 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:52,578 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:52,578 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:52,579 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2020-07-28 17:53:52,653 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575e13ef7/e85f1ebd228b4e689d672eec8917007f/FLAGeb58a111e [2020-07-28 17:53:53,148 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:53,149 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1091.c [2020-07-28 17:53:53,159 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575e13ef7/e85f1ebd228b4e689d672eec8917007f/FLAGeb58a111e [2020-07-28 17:53:53,495 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/575e13ef7/e85f1ebd228b4e689d672eec8917007f [2020-07-28 17:53:53,499 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:53,502 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:53,503 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:53,504 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:53,507 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:53,509 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,512 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3cc8aa3a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53, skipping insertion in model container [2020-07-28 17:53:53,513 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,521 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:53,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:53,771 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:53,778 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:53,810 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:53,897 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:53,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53 WrapperNode [2020-07-28 17:53:53,898 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:53,899 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:53,900 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:53,901 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:53,910 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,933 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,961 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:53,961 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:53,961 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:53,961 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:53,972 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,972 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,976 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,977 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,989 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,995 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:53,997 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (1/1) ... [2020-07-28 17:53:54,001 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:54,002 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:54,002 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:54,002 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:54,003 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (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 17:53:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:54,068 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:54,069 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:54,069 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:54,766 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:54,766 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-28 17:53:54,770 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:54 BoogieIcfgContainer [2020-07-28 17:53:54,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:54,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:54,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:54,775 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:54,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:53" (1/3) ... [2020-07-28 17:53:54,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ff490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:54, skipping insertion in model container [2020-07-28 17:53:54,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:53" (2/3) ... [2020-07-28 17:53:54,777 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@228ff490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:54, skipping insertion in model container [2020-07-28 17:53:54,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:54" (3/3) ... [2020-07-28 17:53:54,779 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1091.c [2020-07-28 17:53:54,788 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:54,794 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:54,804 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:54,824 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:54,824 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:54,824 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:54,825 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:54,825 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:54,825 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:54,825 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:54,825 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:54,840 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2020-07-28 17:53:54,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:54,847 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:54,848 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:54,848 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:54,853 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:54,853 INFO L82 PathProgramCache]: Analyzing trace with hash -2022266355, now seen corresponding path program 1 times [2020-07-28 17:53:54,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:54,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [740306881] [2020-07-28 17:53:54,864 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 17:53:54,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:54,981 INFO L263 TraceCheckSpWp]: Trace formula consists of 24 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:54,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:54,996 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:55,028 INFO L280 TraceCheckUtils]: 0: Hoare triple {29#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {29#true} is VALID [2020-07-28 17:53:55,029 INFO L280 TraceCheckUtils]: 1: Hoare triple {29#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {29#true} is VALID [2020-07-28 17:53:55,030 INFO L280 TraceCheckUtils]: 2: Hoare triple {29#true} assume !true; {30#false} is VALID [2020-07-28 17:53:55,030 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#false} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {30#false} is VALID [2020-07-28 17:53:55,031 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#false} assume !~bvslt32(ceil_float_~j0~0, 23bv32); {30#false} is VALID [2020-07-28 17:53:55,031 INFO L280 TraceCheckUtils]: 5: Hoare triple {30#false} assume !!~bvult32(ceil_float_~ix~0, 2139095040bv32);ceil_float_#res := ceil_float_~x; {30#false} is VALID [2020-07-28 17:53:55,031 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#false} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {30#false} is VALID [2020-07-28 17:53:55,032 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#false} main_#t~ret5 := isnan_float_#res; {30#false} is VALID [2020-07-28 17:53:55,032 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {30#false} is VALID [2020-07-28 17:53:55,032 INFO L280 TraceCheckUtils]: 9: Hoare triple {30#false} assume !false; {30#false} is VALID [2020-07-28 17:53:55,034 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 17:53:55,035 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:55,060 INFO L280 TraceCheckUtils]: 9: Hoare triple {30#false} assume !false; {30#false} is VALID [2020-07-28 17:53:55,060 INFO L280 TraceCheckUtils]: 8: Hoare triple {30#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {30#false} is VALID [2020-07-28 17:53:55,060 INFO L280 TraceCheckUtils]: 7: Hoare triple {30#false} main_#t~ret5 := isnan_float_#res; {30#false} is VALID [2020-07-28 17:53:55,061 INFO L280 TraceCheckUtils]: 6: Hoare triple {30#false} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {30#false} is VALID [2020-07-28 17:53:55,061 INFO L280 TraceCheckUtils]: 5: Hoare triple {30#false} assume !!~bvult32(ceil_float_~ix~0, 2139095040bv32);ceil_float_#res := ceil_float_~x; {30#false} is VALID [2020-07-28 17:53:55,061 INFO L280 TraceCheckUtils]: 4: Hoare triple {30#false} assume !~bvslt32(ceil_float_~j0~0, 23bv32); {30#false} is VALID [2020-07-28 17:53:55,062 INFO L280 TraceCheckUtils]: 3: Hoare triple {30#false} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {30#false} is VALID [2020-07-28 17:53:55,063 INFO L280 TraceCheckUtils]: 2: Hoare triple {29#true} assume !true; {30#false} is VALID [2020-07-28 17:53:55,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {29#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {29#true} is VALID [2020-07-28 17:53:55,063 INFO L280 TraceCheckUtils]: 0: Hoare triple {29#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {29#true} is VALID [2020-07-28 17:53:55,064 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 17:53:55,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [740306881] [2020-07-28 17:53:55,066 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:55,066 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:55,067 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966551156] [2020-07-28 17:53:55,073 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:55,075 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:55,079 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:55,108 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 17:53:55,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:55,108 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:55,118 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:55,119 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:55,121 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 2 states. [2020-07-28 17:53:55,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,497 INFO L93 Difference]: Finished difference Result 50 states and 76 transitions. [2020-07-28 17:53:55,497 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:55,497 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:55,498 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:55,499 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:55,512 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 76 transitions. [2020-07-28 17:53:55,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:55,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 76 transitions. [2020-07-28 17:53:55,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 76 transitions. [2020-07-28 17:53:55,770 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 76 edges. 76 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:55,780 INFO L225 Difference]: With dead ends: 50 [2020-07-28 17:53:55,780 INFO L226 Difference]: Without dead ends: 23 [2020-07-28 17:53:55,783 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 17:53:55,800 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2020-07-28 17:53:55,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2020-07-28 17:53:55,817 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:55,818 INFO L82 GeneralOperation]: Start isEquivalent. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:55,819 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:55,819 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:55,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,823 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-07-28 17:53:55,823 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:55,823 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:55,824 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:55,824 INFO L74 IsIncluded]: Start isIncluded. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:55,824 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 23 states. [2020-07-28 17:53:55,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:55,827 INFO L93 Difference]: Finished difference Result 23 states and 31 transitions. [2020-07-28 17:53:55,828 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:55,828 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:55,828 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:55,829 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:55,829 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:55,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-07-28 17:53:55,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 31 transitions. [2020-07-28 17:53:55,833 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 31 transitions. Word has length 10 [2020-07-28 17:53:55,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:55,834 INFO L479 AbstractCegarLoop]: Abstraction has 23 states and 31 transitions. [2020-07-28 17:53:55,834 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:55,834 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 31 transitions. [2020-07-28 17:53:55,835 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:55,835 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:55,835 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:56,057 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:56,058 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:56,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:56,059 INFO L82 PathProgramCache]: Analyzing trace with hash -62606256, now seen corresponding path program 1 times [2020-07-28 17:53:56,060 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:56,060 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [125292414] [2020-07-28 17:53:56,061 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 17:53:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:56,152 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-28 17:53:56,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:56,166 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:56,350 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:53:56,426 INFO L280 TraceCheckUtils]: 0: Hoare triple {217#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {217#true} is VALID [2020-07-28 17:53:56,429 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,431 INFO L280 TraceCheckUtils]: 2: Hoare triple {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(ceil_float_~x, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);call ceil_float_#t~mem0 := read~intINTTYPE4(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);ceil_float_~i0~0 := ceil_float_#t~mem0;call write~intFLOATTYPE4(ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);havoc ceil_float_#t~mem0;havoc ceil_float_#t~union1;call ULTIMATE.dealloc(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset);havoc ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset; {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,432 INFO L280 TraceCheckUtils]: 3: Hoare triple {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,434 INFO L280 TraceCheckUtils]: 4: Hoare triple {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,435 INFO L280 TraceCheckUtils]: 5: Hoare triple {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} assume !~bvslt32(ceil_float_~j0~0, 23bv32); {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,436 INFO L280 TraceCheckUtils]: 6: Hoare triple {225#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} assume !!~bvult32(ceil_float_~ix~0, 2139095040bv32);ceil_float_#res := ceil_float_~x; {241#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_float_#res| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:56,440 INFO L280 TraceCheckUtils]: 7: Hoare triple {241#(exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_float_#res| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {245#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:53:56,441 INFO L280 TraceCheckUtils]: 8: Hoare triple {245#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret5 := isnan_float_#res; {249#(= (bvadd |ULTIMATE.start_main_#t~ret5| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:56,442 INFO L280 TraceCheckUtils]: 9: Hoare triple {249#(= (bvadd |ULTIMATE.start_main_#t~ret5| (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {218#false} is VALID [2020-07-28 17:53:56,443 INFO L280 TraceCheckUtils]: 10: Hoare triple {218#false} assume !false; {218#false} is VALID [2020-07-28 17:53:56,447 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 17:53:56,447 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:56,603 INFO L280 TraceCheckUtils]: 10: Hoare triple {218#false} assume !false; {218#false} is VALID [2020-07-28 17:53:56,604 INFO L280 TraceCheckUtils]: 9: Hoare triple {259#(not (= |ULTIMATE.start_main_#t~ret5| (_ bv0 32)))} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {218#false} is VALID [2020-07-28 17:53:56,605 INFO L280 TraceCheckUtils]: 8: Hoare triple {263#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret5 := isnan_float_#res; {259#(not (= |ULTIMATE.start_main_#t~ret5| (_ bv0 32)))} is VALID [2020-07-28 17:53:56,605 INFO L280 TraceCheckUtils]: 7: Hoare triple {267#(not (fp.eq |ULTIMATE.start_ceil_float_#res| |ULTIMATE.start_ceil_float_#res|))} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {263#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:53:56,606 INFO L280 TraceCheckUtils]: 6: Hoare triple {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} assume !!~bvult32(ceil_float_~ix~0, 2139095040bv32);ceil_float_#res := ceil_float_~x; {267#(not (fp.eq |ULTIMATE.start_ceil_float_#res| |ULTIMATE.start_ceil_float_#res|))} is VALID [2020-07-28 17:53:56,607 INFO L280 TraceCheckUtils]: 5: Hoare triple {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} assume !~bvslt32(ceil_float_~j0~0, 23bv32); {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} is VALID [2020-07-28 17:53:56,608 INFO L280 TraceCheckUtils]: 4: Hoare triple {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} is VALID [2020-07-28 17:53:56,611 INFO L280 TraceCheckUtils]: 3: Hoare triple {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} goto; {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} is VALID [2020-07-28 17:53:56,618 INFO L280 TraceCheckUtils]: 2: Hoare triple {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} call ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(ceil_float_~x, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);call ceil_float_#t~mem0 := read~intINTTYPE4(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);ceil_float_~i0~0 := ceil_float_#t~mem0;call write~intFLOATTYPE4(ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);havoc ceil_float_#t~mem0;havoc ceil_float_#t~union1;call ULTIMATE.dealloc(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset);havoc ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset; {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} is VALID [2020-07-28 17:53:56,622 INFO L280 TraceCheckUtils]: 1: Hoare triple {217#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {271#(not (fp.eq ULTIMATE.start_ceil_float_~x ULTIMATE.start_ceil_float_~x))} is VALID [2020-07-28 17:53:56,622 INFO L280 TraceCheckUtils]: 0: Hoare triple {217#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {217#true} is VALID [2020-07-28 17:53:56,623 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 17:53:56,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [125292414] [2020-07-28 17:53:56,624 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:56,624 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-07-28 17:53:56,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1944810872] [2020-07-28 17:53:56,629 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:53:56,629 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:56,630 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:53:56,681 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:56,681 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:53:56,681 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:56,682 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:53:56,682 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:53:56,682 INFO L87 Difference]: Start difference. First operand 23 states and 31 transitions. Second operand 10 states. [2020-07-28 17:53:58,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,517 INFO L93 Difference]: Finished difference Result 34 states and 41 transitions. [2020-07-28 17:53:58,517 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:53:58,517 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:53:58,518 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:58,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:58,520 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2020-07-28 17:53:58,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:58,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 41 transitions. [2020-07-28 17:53:58,522 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 41 transitions. [2020-07-28 17:53:58,717 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:58,718 INFO L225 Difference]: With dead ends: 34 [2020-07-28 17:53:58,718 INFO L226 Difference]: Without dead ends: 18 [2020-07-28 17:53:58,719 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=106, Unknown=0, NotChecked=0, Total=156 [2020-07-28 17:53:58,720 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-28 17:53:58,727 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-28 17:53:58,727 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:58,727 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:58,728 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:58,728 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:58,729 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,730 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-07-28 17:53:58,730 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-07-28 17:53:58,730 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:58,731 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:58,731 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:58,731 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:58,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:58,733 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-07-28 17:53:58,733 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-07-28 17:53:58,734 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:58,734 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:58,734 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:58,734 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:58,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:58,735 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2020-07-28 17:53:58,736 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 11 [2020-07-28 17:53:58,736 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:58,736 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2020-07-28 17:53:58,736 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:53:58,737 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2020-07-28 17:53:58,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:53:58,737 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:58,737 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:58,951 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:58,952 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:58,953 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:58,953 INFO L82 PathProgramCache]: Analyzing trace with hash 1612289523, now seen corresponding path program 1 times [2020-07-28 17:53:58,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:58,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1955127449] [2020-07-28 17:53:58,955 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 17:53:59,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:59,056 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 17:53:59,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:59,071 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:59,227 INFO L280 TraceCheckUtils]: 0: Hoare triple {394#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {394#true} is VALID [2020-07-28 17:53:59,230 INFO L280 TraceCheckUtils]: 1: Hoare triple {394#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {402#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:59,240 INFO L280 TraceCheckUtils]: 2: Hoare triple {402#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(ceil_float_~x, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);call ceil_float_#t~mem0 := read~intINTTYPE4(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);ceil_float_~i0~0 := ceil_float_#t~mem0;call write~intFLOATTYPE4(ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);havoc ceil_float_#t~mem0;havoc ceil_float_#t~union1;call ULTIMATE.dealloc(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset);havoc ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset; {406#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:59,241 INFO L280 TraceCheckUtils]: 3: Hoare triple {406#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {406#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:59,247 INFO L280 TraceCheckUtils]: 4: Hoare triple {406#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {413#(exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0)))} is VALID [2020-07-28 17:53:59,251 INFO L280 TraceCheckUtils]: 5: Hoare triple {413#(exists ((ULTIMATE.start_ceil_float_~i0~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (fp ((_ extract 31 31) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 30 23) ULTIMATE.start_ceil_float_~i0~0) ((_ extract 22 0) ULTIMATE.start_ceil_float_~i0~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_ceil_float_~j0~0)))} assume ~bvslt32(ceil_float_~j0~0, 23bv32); {395#false} is VALID [2020-07-28 17:53:59,252 INFO L280 TraceCheckUtils]: 6: Hoare triple {395#false} assume ~bvslt32(ceil_float_~j0~0, 0bv32); {395#false} is VALID [2020-07-28 17:53:59,252 INFO L280 TraceCheckUtils]: 7: Hoare triple {395#false} assume !~fp.gt~FLOAT(~fp.add~FLOAT(currentRoundingMode, ~huge_ceil~0, ceil_float_~x), ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE())); {395#false} is VALID [2020-07-28 17:53:59,253 INFO L280 TraceCheckUtils]: 8: Hoare triple {395#false} call ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(ceil_float_~i0~0, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);call ceil_float_#t~mem2 := read~intFLOATTYPE4(ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);ceil_float_~x := ceil_float_#t~mem2;call write~intINTTYPE4(ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);havoc ceil_float_#t~union3;havoc ceil_float_#t~mem2;call ULTIMATE.dealloc(ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset);havoc ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset; {395#false} is VALID [2020-07-28 17:53:59,253 INFO L280 TraceCheckUtils]: 9: Hoare triple {395#false} goto; {395#false} is VALID [2020-07-28 17:53:59,253 INFO L280 TraceCheckUtils]: 10: Hoare triple {395#false} ceil_float_#res := ceil_float_~x; {395#false} is VALID [2020-07-28 17:53:59,254 INFO L280 TraceCheckUtils]: 11: Hoare triple {395#false} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {395#false} is VALID [2020-07-28 17:53:59,254 INFO L280 TraceCheckUtils]: 12: Hoare triple {395#false} main_#t~ret5 := isnan_float_#res; {395#false} is VALID [2020-07-28 17:53:59,255 INFO L280 TraceCheckUtils]: 13: Hoare triple {395#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {395#false} is VALID [2020-07-28 17:53:59,255 INFO L280 TraceCheckUtils]: 14: Hoare triple {395#false} assume !false; {395#false} is VALID [2020-07-28 17:53:59,256 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 17:53:59,257 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:59,446 INFO L280 TraceCheckUtils]: 14: Hoare triple {395#false} assume !false; {395#false} is VALID [2020-07-28 17:53:59,447 INFO L280 TraceCheckUtils]: 13: Hoare triple {395#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {395#false} is VALID [2020-07-28 17:53:59,447 INFO L280 TraceCheckUtils]: 12: Hoare triple {395#false} main_#t~ret5 := isnan_float_#res; {395#false} is VALID [2020-07-28 17:53:59,447 INFO L280 TraceCheckUtils]: 11: Hoare triple {395#false} main_#t~ret4 := ceil_float_#res;main_~res~0 := main_#t~ret4;havoc main_#t~ret4;isnan_float_#in~x := main_~res~0;havoc isnan_float_#res;havoc isnan_float_~x;isnan_float_~x := isnan_float_#in~x;isnan_float_#res := (if !~fp.eq~FLOAT(isnan_float_~x, isnan_float_~x) then 1bv32 else 0bv32); {395#false} is VALID [2020-07-28 17:53:59,448 INFO L280 TraceCheckUtils]: 10: Hoare triple {395#false} ceil_float_#res := ceil_float_~x; {395#false} is VALID [2020-07-28 17:53:59,448 INFO L280 TraceCheckUtils]: 9: Hoare triple {395#false} goto; {395#false} is VALID [2020-07-28 17:53:59,448 INFO L280 TraceCheckUtils]: 8: Hoare triple {395#false} call ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(ceil_float_~i0~0, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);call ceil_float_#t~mem2 := read~intFLOATTYPE4(ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);ceil_float_~x := ceil_float_#t~mem2;call write~intINTTYPE4(ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, 4bv32);havoc ceil_float_#t~union3;havoc ceil_float_#t~mem2;call ULTIMATE.dealloc(ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset);havoc ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset; {395#false} is VALID [2020-07-28 17:53:59,449 INFO L280 TraceCheckUtils]: 7: Hoare triple {395#false} assume !~fp.gt~FLOAT(~fp.add~FLOAT(currentRoundingMode, ~huge_ceil~0, ceil_float_~x), ~convertDOUBLEToFLOAT(currentRoundingMode, ~Pluszero~DOUBLE())); {395#false} is VALID [2020-07-28 17:53:59,449 INFO L280 TraceCheckUtils]: 6: Hoare triple {395#false} assume ~bvslt32(ceil_float_~j0~0, 0bv32); {395#false} is VALID [2020-07-28 17:53:59,450 INFO L280 TraceCheckUtils]: 5: Hoare triple {471#(not (bvslt ULTIMATE.start_ceil_float_~j0~0 (_ bv23 32)))} assume ~bvslt32(ceil_float_~j0~0, 23bv32); {395#false} is VALID [2020-07-28 17:53:59,453 INFO L280 TraceCheckUtils]: 4: Hoare triple {475#(not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} ceil_float_~ix~0 := ~bvand32(2147483647bv32, ceil_float_~i0~0);ceil_float_~j0~0 := ~bvsub32(~bvlshr32(ceil_float_~ix~0, 23bv32), 127bv32); {471#(not (bvslt ULTIMATE.start_ceil_float_~j0~0 (_ bv23 32)))} is VALID [2020-07-28 17:53:59,454 INFO L280 TraceCheckUtils]: 3: Hoare triple {475#(not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} goto; {475#(not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:59,459 INFO L280 TraceCheckUtils]: 2: Hoare triple {482#(forall ((v_ULTIMATE.start_ceil_float_~i0~0_19 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) v_ULTIMATE.start_ceil_float_~i0~0_19) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_ceil_float_~x (fp ((_ extract 31 31) v_ULTIMATE.start_ceil_float_~i0~0_19) ((_ extract 30 23) v_ULTIMATE.start_ceil_float_~i0~0_19) ((_ extract 22 0) v_ULTIMATE.start_ceil_float_~i0~0_19))))))} call ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(ceil_float_~x, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);call ceil_float_#t~mem0 := read~intINTTYPE4(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);ceil_float_~i0~0 := ceil_float_#t~mem0;call write~intFLOATTYPE4(ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, 4bv32);havoc ceil_float_#t~mem0;havoc ceil_float_#t~union1;call ULTIMATE.dealloc(ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset);havoc ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset; {475#(not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) ULTIMATE.start_ceil_float_~i0~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:59,464 INFO L280 TraceCheckUtils]: 1: Hoare triple {394#true} havoc main_#res;havoc main_#t~ret4, main_#t~ret5, main_~x~0, main_~res~0;main_~x~0 := ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~FLOAT(), ~Pluszero~FLOAT());ceil_float_#in~x := main_~x~0;havoc ceil_float_#res;havoc ceil_float_#t~mem0, ceil_float_#t~union1, ceil_float_~#gf_u~0.base, ceil_float_~#gf_u~0.offset, ceil_float_#t~mem2, ceil_float_#t~union3, ceil_float_~#sf_u~0.base, ceil_float_~#sf_u~0.offset, ceil_float_~x, ceil_float_~i0~0, ceil_float_~j0~0, ceil_float_~i~0, ceil_float_~ix~0;ceil_float_~x := ceil_float_#in~x;havoc ceil_float_~i0~0;havoc ceil_float_~j0~0;havoc ceil_float_~i~0;havoc ceil_float_~ix~0; {482#(forall ((v_ULTIMATE.start_ceil_float_~i0~0_19 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2147483647 32) v_ULTIMATE.start_ceil_float_~i0~0_19) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_ceil_float_~x (fp ((_ extract 31 31) v_ULTIMATE.start_ceil_float_~i0~0_19) ((_ extract 30 23) v_ULTIMATE.start_ceil_float_~i0~0_19) ((_ extract 22 0) v_ULTIMATE.start_ceil_float_~i0~0_19))))))} is VALID [2020-07-28 17:53:59,464 INFO L280 TraceCheckUtils]: 0: Hoare triple {394#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven;~huge_ceil~0 := ~convertDOUBLEToFLOAT(currentRoundingMode, ~to_fp~DOUBLE(currentRoundingMode, 1.0E30)); {394#true} is VALID [2020-07-28 17:53:59,465 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 17:53:59,466 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1955127449] [2020-07-28 17:53:59,466 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:59,466 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:53:59,467 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1610909752] [2020-07-28 17:53:59,467 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:53:59,467 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:59,468 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:53:59,525 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:59,526 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:53:59,526 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:59,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:53:59,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:53:59,527 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 8 states. [2020-07-28 17:53:59,750 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:59,750 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2020-07-28 17:53:59,750 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:53:59,750 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:53:59,750 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:59,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:59,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:53:59,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:59,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:53:59,755 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 18 transitions. [2020-07-28 17:53:59,823 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 17:53:59,824 INFO L225 Difference]: With dead ends: 18 [2020-07-28 17:53:59,824 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:59,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:53:59,825 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:59,825 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:59,825 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:59,825 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:59,825 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:59,826 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:59,826 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:59,826 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:59,826 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:59,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:59,826 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:59,827 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:59,827 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:59,827 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:59,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:59,827 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:59,828 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:59,828 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:59,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:59,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:59,828 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 17:53:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:59,828 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:59,829 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:53:59,829 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:59,829 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:00,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:54:00,033 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L23(lines 23 47) no Hoare annotation was computed. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L48(lines 48 52) no Hoare annotation was computed. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L48-1(lines 13 54) no Hoare annotation was computed. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L48-2(lines 48 52) no Hoare annotation was computed. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L36(lines 36 40) no Hoare annotation was computed. [2020-07-28 17:54:00,174 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:54:00,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:54:00,175 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:54:00,175 INFO L268 CegarLoopResult]: For program point L28(lines 28 30) no Hoare annotation was computed. [2020-07-28 17:54:00,175 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_float_#res| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2020-07-28 17:54:00,175 INFO L268 CegarLoopResult]: For program point L24(lines 24 41) no Hoare annotation was computed. [2020-07-28 17:54:00,176 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 72) no Hoare annotation was computed. [2020-07-28 17:54:00,176 INFO L264 CegarLoopResult]: At program point L53(lines 13 54) the Hoare annotation is: (and (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) (exists ((currentRoundingMode RoundingMode)) (= |ULTIMATE.start_ceil_float_#res| (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2020-07-28 17:54:00,176 INFO L268 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:54:00,177 INFO L264 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_ceil_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))) [2020-07-28 17:54:00,177 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:54:00,177 INFO L268 CegarLoopResult]: For program point L37(lines 37 38) no Hoare annotation was computed. [2020-07-28 17:54:00,178 INFO L268 CegarLoopResult]: For program point L37-2(lines 37 38) no Hoare annotation was computed. [2020-07-28 17:54:00,178 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:54:00,178 INFO L268 CegarLoopResult]: For program point L25(lines 25 31) no Hoare annotation was computed. [2020-07-28 17:54:00,178 INFO L268 CegarLoopResult]: For program point L71(lines 71 74) no Hoare annotation was computed. [2020-07-28 17:54:00,178 INFO L268 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2020-07-28 17:54:00,179 INFO L268 CegarLoopResult]: For program point L26(lines 26 30) no Hoare annotation was computed. [2020-07-28 17:54:00,179 INFO L271 CegarLoopResult]: At program point L76(lines 59 77) the Hoare annotation is: true [2020-07-28 17:54:00,179 INFO L268 CegarLoopResult]: For program point L43(lines 43 46) no Hoare annotation was computed. [2020-07-28 17:54:00,179 INFO L268 CegarLoopResult]: For program point L72(line 72) no Hoare annotation was computed. [2020-07-28 17:54:00,184 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:54:00,184 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:54:00,185 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:54:00,185 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:54:00,185 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:54:00,185 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:54:00,185 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:54:00,186 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:54:00,186 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:54:00,186 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:54:00,186 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:54:00,186 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:54:00,187 WARN L170 areAnnotationChecker]: L43 has no Hoare annotation [2020-07-28 17:54:00,187 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:54:00,187 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:54:00,187 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:54:00,187 WARN L170 areAnnotationChecker]: L34 has no Hoare annotation [2020-07-28 17:54:00,193 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:54:00,193 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:54:00,193 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:54:00,193 WARN L170 areAnnotationChecker]: L48-1 has no Hoare annotation [2020-07-28 17:54:00,193 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:54:00,194 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:54:00,194 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:54:00,194 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:54:00,197 WARN L170 areAnnotationChecker]: L28 has no Hoare annotation [2020-07-28 17:54:00,197 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L48 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L48-2 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L37 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L71 has no Hoare annotation [2020-07-28 17:54:00,198 WARN L170 areAnnotationChecker]: L37-2 has no Hoare annotation [2020-07-28 17:54:00,199 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:54:00,199 WARN L170 areAnnotationChecker]: L72 has no Hoare annotation [2020-07-28 17:54:00,199 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:54:00,199 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:54:00,202 INFO L163 areAnnotationChecker]: CFG has 1 edges. 1 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. 0 times interpolants missing. [2020-07-28 17:54:00,207 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,208 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,216 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,219 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,222 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,226 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,227 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,228 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:54:00 BoogieIcfgContainer [2020-07-28 17:54:00,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:54:00,231 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:54:00,231 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:54:00,232 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:54:00,232 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:54" (3/4) ... [2020-07-28 17:54:00,236 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:54:00,247 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-07-28 17:54:00,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-07-28 17:54:00,248 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:54:00,274 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2020-07-28 17:54:00,275 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2020-07-28 17:54:00,276 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2020-07-28 17:54:00,313 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:54:00,314 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:54:00,316 INFO L168 Benchmark]: Toolchain (without parser) took 6815.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.9 MB in the beginning and 881.9 MB in the end (delta: 73.0 MB). Peak memory consumption was 217.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:00,317 INFO L168 Benchmark]: CDTParser took 0.17 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 17:54:00,318 INFO L168 Benchmark]: CACSL2BoogieTranslator took 395.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:00,318 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:54:00,318 INFO L168 Benchmark]: Boogie Preprocessor took 40.27 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 17:54:00,319 INFO L168 Benchmark]: RCFGBuilder took 769.12 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 17:54:00,320 INFO L168 Benchmark]: TraceAbstraction took 5459.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.9 MB in the end (delta: 220.0 MB). Peak memory consumption was 220.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:00,320 INFO L168 Benchmark]: Witness Printer took 82.27 ms. Allocated memory is still 1.2 GB. Free memory is still 881.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:54:00,323 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 0.17 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 395.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.39 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.27 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 769.12 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 5459.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 881.9 MB in the end (delta: 220.0 MB). Peak memory consumption was 220.0 MB. Max. memory is 11.5 GB. * Witness Printer took 82.27 ms. Allocated memory is still 1.2 GB. Free memory is still 881.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 72]: 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: 13]: Loop Invariant [2020-07-28 17:54:00,330 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,331 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 16]: Loop Invariant [2020-07-28 17:54:00,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,332 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - InvariantResult [Line: 57]: Loop Invariant [2020-07-28 17:54:00,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:54:00,333 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] Derived loop invariant: (1bv32 == \result && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && (\exists currentRoundingMode : FloatRoundingMode :: \result == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 26 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.2s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 3.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 51 SDtfs, 18 SDslu, 65 SDs, 0 SdLazy, 47 SolverSat, 4 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 72 GetRequests, 52 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 2 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 8 NumberOfFragments, 41 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 5 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 11 QuantifiedInterpolants, 2730 SizeOfPredicates, 19 NumberOfNonLiveVariables, 101 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...