./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1031.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_1031.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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 ......................................................................................................................................................................................................................................................................................................................................................... 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_1031.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 20ebedc7025deba0ba6b1d81eeaced9b389ea599 .................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 17:53:09,163 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:09,166 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:09,185 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:09,185 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:09,188 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:09,190 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:09,200 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:09,205 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:09,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:09,211 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:09,212 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:09,213 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:09,215 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:09,216 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:09,217 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:09,219 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:09,220 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:09,222 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:09,226 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:09,232 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:09,235 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:09,237 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:09,239 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:09,241 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:09,242 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:09,242 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:09,244 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:09,244 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:09,245 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:09,245 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:09,246 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:09,247 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:09,248 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:09,250 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:09,250 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:09,251 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:09,251 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:09,251 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:09,252 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:09,254 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:09,254 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:53:09,295 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:09,296 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:09,297 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:09,298 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:09,298 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:09,299 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:09,300 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:09,300 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:53:09,300 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:09,301 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:09,302 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:09,302 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:09,303 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:09,303 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:09,303 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:09,304 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:09,304 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:09,304 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:09,305 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:09,305 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:09,305 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:09,305 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:09,306 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:09,306 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:09,307 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:09,307 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:53:09,307 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:53:09,307 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:09,308 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:09,308 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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2020-07-28 17:53:09,608 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:09,623 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:09,629 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:09,631 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:09,632 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:09,636 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-07-28 17:53:09,711 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a509da50/3d304b1f01004f1d8c7d8370ecabee26/FLAG5452da66f [2020-07-28 17:53:10,217 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:10,218 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-07-28 17:53:10,225 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a509da50/3d304b1f01004f1d8c7d8370ecabee26/FLAG5452da66f [2020-07-28 17:53:10,571 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7a509da50/3d304b1f01004f1d8c7d8370ecabee26 [2020-07-28 17:53:10,575 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:10,578 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:10,579 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:10,579 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:10,583 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:10,585 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:10,588 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@41884872 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10, skipping insertion in model container [2020-07-28 17:53:10,588 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:10,597 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:10,617 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:10,844 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:10,848 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:10,874 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:10,896 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:10,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10 WrapperNode [2020-07-28 17:53:10,897 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:10,898 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:10,898 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:10,898 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:10,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:10,978 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,013 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:11,014 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:11,014 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:11,014 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:11,023 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,023 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,025 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,037 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,043 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,045 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (1/1) ... [2020-07-28 17:53:11,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:11,049 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:11,049 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:11,049 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:11,050 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (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 17:53:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2020-07-28 17:53:11,125 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 17:53:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:53:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:11,126 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:53:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:11,126 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:11,546 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:11,547 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-28 17:53:11,550 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:11 BoogieIcfgContainer [2020-07-28 17:53:11,550 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:11,552 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:11,552 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:11,555 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:11,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:10" (1/3) ... [2020-07-28 17:53:11,556 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692a7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:11, skipping insertion in model container [2020-07-28 17:53:11,556 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:10" (2/3) ... [2020-07-28 17:53:11,557 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7692a7af and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:11, skipping insertion in model container [2020-07-28 17:53:11,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:11" (3/3) ... [2020-07-28 17:53:11,559 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-07-28 17:53:11,571 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:11,579 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:11,594 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:11,615 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:11,615 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:11,615 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:11,616 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:11,616 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:11,616 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:11,616 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:11,616 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:11,630 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-28 17:53:11,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:11,636 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:11,637 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:11,637 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:11,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:11,642 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2020-07-28 17:53:11,650 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:11,651 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1694488771] [2020-07-28 17:53:11,651 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:11,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:11,771 INFO L280 TraceCheckUtils]: 0: Hoare triple {24#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {24#true} is VALID [2020-07-28 17:53:11,772 INFO L280 TraceCheckUtils]: 1: Hoare triple {24#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);round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {24#true} is VALID [2020-07-28 17:53:11,773 INFO L280 TraceCheckUtils]: 2: Hoare triple {24#true} assume !true; {25#false} is VALID [2020-07-28 17:53:11,774 INFO L280 TraceCheckUtils]: 3: Hoare triple {25#false} round_float_~exponent_less_127~0 := (if ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 <= 2147483647 then ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 else ~bitwiseAnd(round_float_~w~0, 2139095040) / 8388608 % 4294967296 % 4294967296 - 4294967296) - 127; {25#false} is VALID [2020-07-28 17:53:11,774 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#false} assume !(round_float_~exponent_less_127~0 < 23); {25#false} is VALID [2020-07-28 17:53:11,775 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#false} assume 128 == round_float_~exponent_less_127~0;round_float_#res := ~someBinaryArithmeticFLOAToperation(round_float_~x, round_float_~x); {25#false} is VALID [2020-07-28 17:53:11,775 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#false} main_#t~ret4 := round_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); {25#false} is VALID [2020-07-28 17:53:11,775 INFO L280 TraceCheckUtils]: 7: Hoare triple {25#false} main_#t~ret5 := isnan_float_#res;assume -2147483648 <= main_#t~ret5 && main_#t~ret5 <= 2147483647; {25#false} is VALID [2020-07-28 17:53:11,776 INFO L280 TraceCheckUtils]: 8: Hoare triple {25#false} assume 0 == main_#t~ret5;havoc main_#t~ret5; {25#false} is VALID [2020-07-28 17:53:11,776 INFO L280 TraceCheckUtils]: 9: Hoare triple {25#false} assume !false; {25#false} is VALID [2020-07-28 17:53:11,780 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 17:53:11,781 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1694488771] [2020-07-28 17:53:11,782 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:11,782 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 17:53:11,783 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [562416764] [2020-07-28 17:53:11,790 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:11,792 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:11,796 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:11,822 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 17:53:11,823 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:11,823 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:53:11,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:11,833 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:11,835 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-07-28 17:53:11,901 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:11,901 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2020-07-28 17:53:11,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:11,902 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:11,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:11,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:11,910 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 58 transitions. [2020-07-28 17:53:11,911 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:11,914 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 58 transitions. [2020-07-28 17:53:11,914 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 58 transitions. [2020-07-28 17:53:12,011 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:12,023 INFO L225 Difference]: With dead ends: 40 [2020-07-28 17:53:12,023 INFO L226 Difference]: Without dead ends: 18 [2020-07-28 17:53:12,027 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 17:53:12,047 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-28 17:53:12,063 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-28 17:53:12,064 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:12,064 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:12,065 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:12,065 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:12,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:12,068 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-07-28 17:53:12,069 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:12,069 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:12,069 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:12,070 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:12,070 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:12,072 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:12,072 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-07-28 17:53:12,073 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:12,073 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:12,073 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:12,074 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:12,074 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:12,074 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:12,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-07-28 17:53:12,078 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2020-07-28 17:53:12,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:12,079 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-07-28 17:53:12,079 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:12,079 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:12,082 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:12,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:12,082 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:12,084 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:53:12,084 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:12,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:12,084 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2020-07-28 17:53:12,085 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:53:12,085 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051603400] [2020-07-28 17:53:12,085 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:53:12,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:12,149 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:12,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:53:12,182 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:53:12,207 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:53:12,207 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:53:12,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:53:12,234 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:12,234 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:12,234 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-28 17:53:12,234 WARN L170 areAnnotationChecker]: L16-2 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:12,235 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:12,236 WARN L170 areAnnotationChecker]: L51 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L55 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:53:12,237 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:53:12,238 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:53:12,238 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:53:12,238 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:53:12,238 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:12,238 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 17:53:12,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:12 BoogieIcfgContainer [2020-07-28 17:53:12,241 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:12,241 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:12,241 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:12,242 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:12,242 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:11" (3/4) ... [2020-07-28 17:53:12,247 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:53:12,247 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:12,250 INFO L168 Benchmark]: Toolchain (without parser) took 1673.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 954.9 MB in the beginning and 1.1 GB in the end (delta: -96.5 MB). Peak memory consumption was 37.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:12,251 INFO L168 Benchmark]: CDTParser took 0.79 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:12,252 INFO L168 Benchmark]: CACSL2BoogieTranslator took 318.75 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:12,253 INFO L168 Benchmark]: Boogie Procedure Inliner took 115.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:12,253 INFO L168 Benchmark]: Boogie Preprocessor took 34.88 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 17:53:12,254 INFO L168 Benchmark]: RCFGBuilder took 501.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:12,255 INFO L168 Benchmark]: TraceAbstraction took 689.31 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: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:12,255 INFO L168 Benchmark]: Witness Printer took 5.52 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 17:53:12,259 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 0.79 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 318.75 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 944.1 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 115.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 9.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 34.88 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 501.71 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.9 MB). Peak memory consumption was 25.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 689.31 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: 46.3 MB). Peak memory consumption was 46.3 MB. Max. memory is 11.5 GB. * Witness Printer took 5.52 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 70]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 55, overapproximation of someBinaryArithmeticFLOAToperation at line 42, overapproximation of bitwiseAnd at line 22. Possible FailurePath: [L65] float x = 0.0f / 0.0f; [L12] __uint32_t w; [L14] int exponent_less_127; [L17] ieee_float_shape_type gf_u; [L18] gf_u.value = (x) [L19] EXPR gf_u.word [L19] (w) = gf_u.word [L22] exponent_less_127 = (int)((w & 0x7f800000) >> 23) - 127 [L24] COND FALSE !(exponent_less_127 < 23) [L40] COND TRUE exponent_less_127 == 128 [L42] return x + x; [L66] float res = round_float(x); [L55] return x != x; [L69] COND TRUE !isnan_float(res) [L70] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 25 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=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 81 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 17:53:14,360 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:53:14,362 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:53:14,375 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:53:14,376 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:53:14,377 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:53:14,379 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:53:14,381 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:53:14,384 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:53:14,385 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:53:14,386 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:53:14,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:53:14,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:53:14,389 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:53:14,390 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:53:14,392 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:53:14,393 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:53:14,394 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:53:14,396 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:53:14,398 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:53:14,400 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:53:14,402 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:53:14,403 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:53:14,404 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:53:14,407 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:53:14,407 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:53:14,408 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:53:14,409 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:53:14,409 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:53:14,410 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:53:14,411 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:53:14,412 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:53:14,413 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:53:14,414 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:53:14,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:53:14,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:53:14,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:53:14,417 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:53:14,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:53:14,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:53:14,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:53:14,420 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:53:14,435 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:53:14,436 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:53:14,437 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:53:14,438 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:53:14,438 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:53:14,438 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:53:14,438 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:53:14,439 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:53:14,439 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:53:14,439 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:53:14,440 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:53:14,440 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:53:14,440 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:53:14,440 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:53:14,441 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:53:14,441 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:53:14,441 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:53:14,441 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:53:14,442 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:53:14,442 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:53:14,442 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:53:14,443 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:53:14,443 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:53:14,443 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:53:14,444 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:53:14,444 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:53:14,444 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:53:14,444 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:53:14,445 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:53:14,445 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:53:14,445 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:53:14,446 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 -> 20ebedc7025deba0ba6b1d81eeaced9b389ea599 [2020-07-28 17:53:14,744 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:53:14,760 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:53:14,765 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:53:14,767 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:53:14,768 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:53:14,769 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-07-28 17:53:14,836 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc2894/eea441a8b25248e69fde861460918e9b/FLAGd4a7efc8d [2020-07-28 17:53:15,284 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:53:15,285 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1031.c [2020-07-28 17:53:15,294 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc2894/eea441a8b25248e69fde861460918e9b/FLAGd4a7efc8d [2020-07-28 17:53:15,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/987fc2894/eea441a8b25248e69fde861460918e9b [2020-07-28 17:53:15,647 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:53:15,651 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:53:15,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:15,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:53:15,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:53:15,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:15" (1/1) ... [2020-07-28 17:53:15,665 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@921c29e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:15, skipping insertion in model container [2020-07-28 17:53:15,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:53:15" (1/1) ... [2020-07-28 17:53:15,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:53:15,702 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:53:15,947 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:15,955 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:53:15,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:53:16,074 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:53:16,075 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16 WrapperNode [2020-07-28 17:53:16,075 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:53:16,076 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:16,076 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:53:16,076 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:53:16,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,098 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,128 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:53:16,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:53:16,129 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:53:16,129 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:53:16,139 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,139 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,144 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,145 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,157 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,163 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,166 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (1/1) ... [2020-07-28 17:53:16,170 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:53:16,171 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:53:16,171 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:53:16,172 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:53:16,173 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (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 17:53:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:53:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2020-07-28 17:53:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:53:16,242 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:53:16,242 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:53:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:53:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2020-07-28 17:53:16,243 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:53:16,681 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:53:16,681 INFO L295 CfgBuilder]: Removed 12 assume(true) statements. [2020-07-28 17:53:16,685 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:16 BoogieIcfgContainer [2020-07-28 17:53:16,686 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:53:16,687 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:53:16,687 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:53:16,691 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:53:16,691 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:53:15" (1/3) ... [2020-07-28 17:53:16,692 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa9cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:16, skipping insertion in model container [2020-07-28 17:53:16,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:53:16" (2/3) ... [2020-07-28 17:53:16,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7aa9cd7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:53:16, skipping insertion in model container [2020-07-28 17:53:16,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:16" (3/3) ... [2020-07-28 17:53:16,696 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1031.c [2020-07-28 17:53:16,708 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:53:16,715 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 17:53:16,726 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-28 17:53:16,745 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:53:16,745 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:53:16,745 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:53:16,745 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:53:16,746 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:53:16,746 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:53:16,746 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:53:16,746 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:53:16,760 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2020-07-28 17:53:16,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 17:53:16,766 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:16,767 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:16,767 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:16,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:16,773 INFO L82 PathProgramCache]: Analyzing trace with hash 1590434411, now seen corresponding path program 1 times [2020-07-28 17:53:16,784 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:16,784 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1654958954] [2020-07-28 17:53:16,785 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 17:53:16,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:16,888 INFO L263 TraceCheckSpWp]: Trace formula consists of 22 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:53:16,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:16,907 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:16,949 INFO L280 TraceCheckUtils]: 0: Hoare triple {24#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {24#true} is VALID [2020-07-28 17:53:16,949 INFO L280 TraceCheckUtils]: 1: Hoare triple {24#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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {24#true} is VALID [2020-07-28 17:53:16,951 INFO L280 TraceCheckUtils]: 2: Hoare triple {24#true} assume !true; {25#false} is VALID [2020-07-28 17:53:16,952 INFO L280 TraceCheckUtils]: 3: Hoare triple {25#false} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {25#false} is VALID [2020-07-28 17:53:16,952 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#false} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {25#false} is VALID [2020-07-28 17:53:16,953 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#false} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {25#false} is VALID [2020-07-28 17:53:16,953 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#false} main_#t~ret4 := round_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); {25#false} is VALID [2020-07-28 17:53:16,953 INFO L280 TraceCheckUtils]: 7: Hoare triple {25#false} main_#t~ret5 := isnan_float_#res; {25#false} is VALID [2020-07-28 17:53:16,954 INFO L280 TraceCheckUtils]: 8: Hoare triple {25#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {25#false} is VALID [2020-07-28 17:53:16,954 INFO L280 TraceCheckUtils]: 9: Hoare triple {25#false} assume !false; {25#false} is VALID [2020-07-28 17:53:16,957 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 17:53:16,957 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:16,977 INFO L280 TraceCheckUtils]: 9: Hoare triple {25#false} assume !false; {25#false} is VALID [2020-07-28 17:53:16,978 INFO L280 TraceCheckUtils]: 8: Hoare triple {25#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {25#false} is VALID [2020-07-28 17:53:16,978 INFO L280 TraceCheckUtils]: 7: Hoare triple {25#false} main_#t~ret5 := isnan_float_#res; {25#false} is VALID [2020-07-28 17:53:16,979 INFO L280 TraceCheckUtils]: 6: Hoare triple {25#false} main_#t~ret4 := round_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); {25#false} is VALID [2020-07-28 17:53:16,979 INFO L280 TraceCheckUtils]: 5: Hoare triple {25#false} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {25#false} is VALID [2020-07-28 17:53:16,979 INFO L280 TraceCheckUtils]: 4: Hoare triple {25#false} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {25#false} is VALID [2020-07-28 17:53:16,979 INFO L280 TraceCheckUtils]: 3: Hoare triple {25#false} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {25#false} is VALID [2020-07-28 17:53:16,980 INFO L280 TraceCheckUtils]: 2: Hoare triple {24#true} assume !true; {25#false} is VALID [2020-07-28 17:53:16,981 INFO L280 TraceCheckUtils]: 1: Hoare triple {24#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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {24#true} is VALID [2020-07-28 17:53:16,981 INFO L280 TraceCheckUtils]: 0: Hoare triple {24#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {24#true} is VALID [2020-07-28 17:53:16,982 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 17:53:16,983 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1654958954] [2020-07-28 17:53:16,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:16,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:53:16,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1110005141] [2020-07-28 17:53:16,995 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:16,997 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:17,000 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:53:17,045 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 17:53:17,045 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:53:17,045 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:17,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:53:17,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:53:17,057 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 2 states. [2020-07-28 17:53:17,155 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:17,155 INFO L93 Difference]: Finished difference Result 40 states and 58 transitions. [2020-07-28 17:53:17,155 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:53:17,156 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 10 [2020-07-28 17:53:17,156 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:17,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:17,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 58 transitions. [2020-07-28 17:53:17,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:53:17,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 58 transitions. [2020-07-28 17:53:17,167 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 58 transitions. [2020-07-28 17:53:17,340 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 58 edges. 58 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:17,361 INFO L225 Difference]: With dead ends: 40 [2020-07-28 17:53:17,361 INFO L226 Difference]: Without dead ends: 18 [2020-07-28 17:53:17,367 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 17:53:17,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2020-07-28 17:53:17,425 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2020-07-28 17:53:17,425 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:17,426 INFO L82 GeneralOperation]: Start isEquivalent. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:17,426 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:17,427 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:17,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:17,430 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-07-28 17:53:17,430 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:17,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:17,431 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:17,431 INFO L74 IsIncluded]: Start isIncluded. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:17,439 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 18 states. [2020-07-28 17:53:17,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:17,442 INFO L93 Difference]: Finished difference Result 18 states and 22 transitions. [2020-07-28 17:53:17,443 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:17,443 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:17,444 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:17,444 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:17,444 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:17,445 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2020-07-28 17:53:17,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 22 transitions. [2020-07-28 17:53:17,450 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 22 transitions. Word has length 10 [2020-07-28 17:53:17,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:17,451 INFO L479 AbstractCegarLoop]: Abstraction has 18 states and 22 transitions. [2020-07-28 17:53:17,451 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:53:17,452 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 22 transitions. [2020-07-28 17:53:17,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 17:53:17,453 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:17,453 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:17,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:53:17,669 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:17,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:17,669 INFO L82 PathProgramCache]: Analyzing trace with hash -744872786, now seen corresponding path program 1 times [2020-07-28 17:53:17,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:17,670 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [399205946] [2020-07-28 17:53:17,670 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 17:53:17,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:17,762 INFO L263 TraceCheckSpWp]: Trace formula consists of 32 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-28 17:53:17,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:17,779 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:17,936 INFO L280 TraceCheckUtils]: 0: Hoare triple {187#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {192#(= currentRoundingMode roundNearestTiesToEven)} is VALID [2020-07-28 17:53:17,938 INFO L280 TraceCheckUtils]: 1: Hoare triple {192#(= currentRoundingMode roundNearestTiesToEven)} 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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:17,939 INFO L280 TraceCheckUtils]: 2: Hoare triple {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:17,941 INFO L280 TraceCheckUtils]: 3: Hoare triple {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} goto; {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:17,942 INFO L280 TraceCheckUtils]: 4: Hoare triple {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:17,943 INFO L280 TraceCheckUtils]: 5: Hoare triple {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} is VALID [2020-07-28 17:53:17,945 INFO L280 TraceCheckUtils]: 6: Hoare triple {196#(and (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven))} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {212#(= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:17,946 INFO L280 TraceCheckUtils]: 7: Hoare triple {212#(= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} main_#t~ret4 := round_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); {216#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:53:17,947 INFO L280 TraceCheckUtils]: 8: Hoare triple {216#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret5 := isnan_float_#res; {220#(= (bvadd |ULTIMATE.start_main_#t~ret5| (_ bv4294967295 32)) (_ bv0 32))} is VALID [2020-07-28 17:53:17,948 INFO L280 TraceCheckUtils]: 9: Hoare triple {220#(= (bvadd |ULTIMATE.start_main_#t~ret5| (_ bv4294967295 32)) (_ bv0 32))} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {188#false} is VALID [2020-07-28 17:53:17,948 INFO L280 TraceCheckUtils]: 10: Hoare triple {188#false} assume !false; {188#false} is VALID [2020-07-28 17:53:17,950 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 17:53:17,951 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:18,534 INFO L280 TraceCheckUtils]: 10: Hoare triple {188#false} assume !false; {188#false} is VALID [2020-07-28 17:53:18,535 INFO L280 TraceCheckUtils]: 9: Hoare triple {230#(not (= |ULTIMATE.start_main_#t~ret5| (_ bv0 32)))} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {188#false} is VALID [2020-07-28 17:53:18,537 INFO L280 TraceCheckUtils]: 8: Hoare triple {234#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret5 := isnan_float_#res; {230#(not (= |ULTIMATE.start_main_#t~ret5| (_ bv0 32)))} is VALID [2020-07-28 17:53:18,538 INFO L280 TraceCheckUtils]: 7: Hoare triple {212#(= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} main_#t~ret4 := round_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); {234#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:53:18,539 INFO L280 TraceCheckUtils]: 6: Hoare triple {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} assume 128bv32 == round_float_~exponent_less_127~0;round_float_#res := ~fp.add~FLOAT(currentRoundingMode, round_float_~x, round_float_~x); {212#(= |ULTIMATE.start_round_float_#res| (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,540 INFO L280 TraceCheckUtils]: 5: Hoare triple {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} assume !~bvslt32(round_float_~exponent_less_127~0, 23bv32); {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,541 INFO L280 TraceCheckUtils]: 4: Hoare triple {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,542 INFO L280 TraceCheckUtils]: 3: Hoare triple {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} goto; {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,548 INFO L280 TraceCheckUtils]: 2: Hoare triple {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,564 INFO L280 TraceCheckUtils]: 1: Hoare triple {187#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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {241#(= (fp.add currentRoundingMode ULTIMATE.start_round_float_~x ULTIMATE.start_round_float_~x) (fp.add roundNearestTiesToEven (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)) (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:18,564 INFO L280 TraceCheckUtils]: 0: Hoare triple {187#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {187#true} is VALID [2020-07-28 17:53:18,566 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 17:53:18,566 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [399205946] [2020-07-28 17:53:18,566 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:18,566 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-07-28 17:53:18,567 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1893718383] [2020-07-28 17:53:18,569 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:53:18,570 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:18,570 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:53:18,698 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:18,698 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:53:18,699 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:18,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:53:18,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:53:18,700 INFO L87 Difference]: Start difference. First operand 18 states and 22 transitions. Second operand 10 states. [2020-07-28 17:53:19,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:19,530 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2020-07-28 17:53:19,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 17:53:19,530 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 11 [2020-07-28 17:53:19,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:19,531 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:19,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2020-07-28 17:53:19,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:53:19,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 26 transitions. [2020-07-28 17:53:19,534 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 26 transitions. [2020-07-28 17:53:19,620 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 26 edges. 26 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:53:19,621 INFO L225 Difference]: With dead ends: 23 [2020-07-28 17:53:19,621 INFO L226 Difference]: Without dead ends: 17 [2020-07-28 17:53:19,623 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-28 17:53:19,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-07-28 17:53:19,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-07-28 17:53:19,629 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:19,630 INFO L82 GeneralOperation]: Start isEquivalent. First operand 17 states. Second operand 17 states. [2020-07-28 17:53:19,630 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2020-07-28 17:53:19,630 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2020-07-28 17:53:19,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:19,632 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-07-28 17:53:19,632 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-28 17:53:19,632 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:19,632 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:19,633 INFO L74 IsIncluded]: Start isIncluded. First operand 17 states. Second operand 17 states. [2020-07-28 17:53:19,633 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 17 states. [2020-07-28 17:53:19,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:19,635 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-07-28 17:53:19,635 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-28 17:53:19,635 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:19,635 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:19,636 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:19,636 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:19,636 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-07-28 17:53:19,637 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-07-28 17:53:19,637 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 11 [2020-07-28 17:53:19,638 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:19,638 INFO L479 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-07-28 17:53:19,638 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:53:19,638 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-07-28 17:53:19,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2020-07-28 17:53:19,639 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:53:19,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:53:19,842 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:53:19,843 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:53:19,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:53:19,845 INFO L82 PathProgramCache]: Analyzing trace with hash 812423977, now seen corresponding path program 1 times [2020-07-28 17:53:19,847 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:53:19,847 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1368399439] [2020-07-28 17:53:19,847 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 17:53:19,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:19,903 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-28 17:53:19,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:53:19,917 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:53:20,076 INFO L280 TraceCheckUtils]: 0: Hoare triple {347#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {347#true} is VALID [2020-07-28 17:53:20,080 INFO L280 TraceCheckUtils]: 1: Hoare triple {347#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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {355#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:20,586 INFO L280 TraceCheckUtils]: 2: Hoare triple {355#(exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {359#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:20,587 INFO L280 TraceCheckUtils]: 3: Hoare triple {359#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} goto; {359#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} is VALID [2020-07-28 17:53:20,594 INFO L280 TraceCheckUtils]: 4: Hoare triple {359#(exists ((currentRoundingMode RoundingMode)) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {366#(exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))))} is VALID [2020-07-28 17:53:20,598 INFO L280 TraceCheckUtils]: 5: Hoare triple {366#(exists ((ULTIMATE.start_round_float_~w~0 (_ BitVec 32)) (currentRoundingMode RoundingMode)) (and (= (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) ULTIMATE.start_round_float_~exponent_less_127~0) (= (fp ((_ extract 31 31) ULTIMATE.start_round_float_~w~0) ((_ extract 30 23) ULTIMATE.start_round_float_~w~0) ((_ extract 22 0) ULTIMATE.start_round_float_~w~0)) (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24)))))} assume ~bvslt32(round_float_~exponent_less_127~0, 23bv32); {348#false} is VALID [2020-07-28 17:53:20,598 INFO L280 TraceCheckUtils]: 6: Hoare triple {348#false} assume ~bvslt32(round_float_~exponent_less_127~0, 0bv32);round_float_~w~0 := ~bvand32(2147483648bv32, round_float_~w~0); {348#false} is VALID [2020-07-28 17:53:20,598 INFO L280 TraceCheckUtils]: 7: Hoare triple {348#false} assume 4294967295bv32 == round_float_~exponent_less_127~0;round_float_~w~0 := ~bvor32(1065353216bv32, round_float_~w~0); {348#false} is VALID [2020-07-28 17:53:20,599 INFO L280 TraceCheckUtils]: 8: Hoare triple {348#false} call round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(round_float_~w~0, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);call round_float_#t~mem2 := read~intFLOATTYPE4(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);round_float_~x := round_float_#t~mem2;call write~intINTTYPE4(round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);havoc round_float_#t~union3;havoc round_float_#t~mem2;call ULTIMATE.dealloc(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset);havoc round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset; {348#false} is VALID [2020-07-28 17:53:20,599 INFO L280 TraceCheckUtils]: 9: Hoare triple {348#false} goto; {348#false} is VALID [2020-07-28 17:53:20,599 INFO L280 TraceCheckUtils]: 10: Hoare triple {348#false} round_float_#res := round_float_~x; {348#false} is VALID [2020-07-28 17:53:20,600 INFO L280 TraceCheckUtils]: 11: Hoare triple {348#false} main_#t~ret4 := round_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); {348#false} is VALID [2020-07-28 17:53:20,600 INFO L280 TraceCheckUtils]: 12: Hoare triple {348#false} main_#t~ret5 := isnan_float_#res; {348#false} is VALID [2020-07-28 17:53:20,600 INFO L280 TraceCheckUtils]: 13: Hoare triple {348#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {348#false} is VALID [2020-07-28 17:53:20,601 INFO L280 TraceCheckUtils]: 14: Hoare triple {348#false} assume !false; {348#false} is VALID [2020-07-28 17:53:20,602 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 17:53:20,603 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:53:20,790 INFO L280 TraceCheckUtils]: 14: Hoare triple {348#false} assume !false; {348#false} is VALID [2020-07-28 17:53:20,790 INFO L280 TraceCheckUtils]: 13: Hoare triple {348#false} assume 0bv32 == main_#t~ret5;havoc main_#t~ret5; {348#false} is VALID [2020-07-28 17:53:20,791 INFO L280 TraceCheckUtils]: 12: Hoare triple {348#false} main_#t~ret5 := isnan_float_#res; {348#false} is VALID [2020-07-28 17:53:20,791 INFO L280 TraceCheckUtils]: 11: Hoare triple {348#false} main_#t~ret4 := round_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); {348#false} is VALID [2020-07-28 17:53:20,791 INFO L280 TraceCheckUtils]: 10: Hoare triple {348#false} round_float_#res := round_float_~x; {348#false} is VALID [2020-07-28 17:53:20,792 INFO L280 TraceCheckUtils]: 9: Hoare triple {348#false} goto; {348#false} is VALID [2020-07-28 17:53:20,792 INFO L280 TraceCheckUtils]: 8: Hoare triple {348#false} call round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intINTTYPE4(round_float_~w~0, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);call round_float_#t~mem2 := read~intFLOATTYPE4(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);round_float_~x := round_float_#t~mem2;call write~intINTTYPE4(round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, 4bv32);havoc round_float_#t~union3;havoc round_float_#t~mem2;call ULTIMATE.dealloc(round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset);havoc round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset; {348#false} is VALID [2020-07-28 17:53:20,793 INFO L280 TraceCheckUtils]: 7: Hoare triple {348#false} assume 4294967295bv32 == round_float_~exponent_less_127~0;round_float_~w~0 := ~bvor32(1065353216bv32, round_float_~w~0); {348#false} is VALID [2020-07-28 17:53:20,793 INFO L280 TraceCheckUtils]: 6: Hoare triple {348#false} assume ~bvslt32(round_float_~exponent_less_127~0, 0bv32);round_float_~w~0 := ~bvand32(2147483648bv32, round_float_~w~0); {348#false} is VALID [2020-07-28 17:53:20,794 INFO L280 TraceCheckUtils]: 5: Hoare triple {424#(not (bvslt ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv23 32)))} assume ~bvslt32(round_float_~exponent_less_127~0, 23bv32); {348#false} is VALID [2020-07-28 17:53:20,795 INFO L280 TraceCheckUtils]: 4: Hoare triple {428#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} round_float_~exponent_less_127~0 := ~bvsub32(~bvlshr32(~bvand32(2139095040bv32, round_float_~w~0), 23bv32), 127bv32); {424#(not (bvslt ULTIMATE.start_round_float_~exponent_less_127~0 (_ bv23 32)))} is VALID [2020-07-28 17:53:20,796 INFO L280 TraceCheckUtils]: 3: Hoare triple {428#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} goto; {428#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:20,803 INFO L280 TraceCheckUtils]: 2: Hoare triple {435#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_1_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_round_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3))))))} call round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(round_float_~x, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);call round_float_#t~mem0 := read~intINTTYPE4(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);round_float_~w~0 := round_float_#t~mem0;call write~intFLOATTYPE4(round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, 4bv32);havoc round_float_#t~mem0;havoc round_float_#t~union1;call ULTIMATE.dealloc(round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset);havoc round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset; {428#(not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) ULTIMATE.start_round_float_~w~0) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32)))} is VALID [2020-07-28 17:53:20,808 INFO L280 TraceCheckUtils]: 1: Hoare triple {347#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());round_float_#in~x := main_~x~0;havoc round_float_#res;havoc round_float_#t~mem0, round_float_#t~union1, round_float_~#gf_u~0.base, round_float_~#gf_u~0.offset, round_float_~exponent_mask~0, round_float_#t~mem2, round_float_#t~union3, round_float_~#sf_u~0.base, round_float_~#sf_u~0.offset, round_float_~x, round_float_~w~0, round_float_~exponent_less_127~0;round_float_~x := round_float_#in~x;havoc round_float_~w~0;havoc round_float_~exponent_less_127~0; {435#(forall ((v_skolemized_v_prenex_1_3 (_ BitVec 32))) (or (not (bvslt (bvadd (bvlshr (bvand (_ bv2139095040 32) v_skolemized_v_prenex_1_3) (_ bv23 32)) (_ bv4294967169 32)) (_ bv23 32))) (not (= ULTIMATE.start_round_float_~x (fp ((_ extract 31 31) v_skolemized_v_prenex_1_3) ((_ extract 30 23) v_skolemized_v_prenex_1_3) ((_ extract 22 0) v_skolemized_v_prenex_1_3))))))} is VALID [2020-07-28 17:53:20,808 INFO L280 TraceCheckUtils]: 0: Hoare triple {347#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {347#true} is VALID [2020-07-28 17:53:20,809 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 17:53:20,810 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1368399439] [2020-07-28 17:53:20,810 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:53:20,810 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2020-07-28 17:53:20,811 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1496683827] [2020-07-28 17:53:20,812 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:53:20,812 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:53:20,812 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states. [2020-07-28 17:53:20,870 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 17:53:20,871 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-28 17:53:20,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:53:20,871 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-28 17:53:20,871 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:53:20,872 INFO L87 Difference]: Start difference. First operand 17 states and 18 transitions. Second operand 8 states. [2020-07-28 17:53:21,086 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:21,087 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2020-07-28 17:53:21,087 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:53:21,087 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 15 [2020-07-28 17:53:21,087 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:53:21,087 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:21,088 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:53:21,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2020-07-28 17:53:21,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 18 transitions. [2020-07-28 17:53:21,090 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 18 transitions. [2020-07-28 17:53:21,136 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 17:53:21,136 INFO L225 Difference]: With dead ends: 17 [2020-07-28 17:53:21,136 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:53:21,137 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 17:53:21,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:53:21,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:53:21,138 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:53:21,138 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:21,139 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:21,139 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:21,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:21,139 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:21,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:21,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:21,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:21,140 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:21,140 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:53:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:53:21,140 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:53:21,141 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:21,141 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:21,141 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:53:21,141 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:53:21,141 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:53:21,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:53:21,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:53:21,142 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2020-07-28 17:53:21,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:53:21,142 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:53:21,142 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-28 17:53:21,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:53:21,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:53:21,343 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:53:21,347 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:53:21,470 INFO L268 CegarLoopResult]: For program point L27(lines 27 29) no Hoare annotation was computed. [2020-07-28 17:53:21,470 INFO L268 CegarLoopResult]: For program point L40(lines 40 44) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point L69(lines 69 72) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point L32(lines 32 34) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point L24(lines 24 45) no Hoare annotation was computed. [2020-07-28 17:53:21,471 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 70) no Hoare annotation was computed. [2020-07-28 17:53:21,472 INFO L268 CegarLoopResult]: For program point L16-1(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:53:21,472 INFO L264 CegarLoopResult]: At program point L16-2(lines 16 20) the Hoare annotation is: (and (= currentRoundingMode roundNearestTiesToEven) (exists ((currentRoundingMode RoundingMode)) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))))) [2020-07-28 17:53:21,472 INFO L268 CegarLoopResult]: For program point L16-3(lines 16 20) no Hoare annotation was computed. [2020-07-28 17:53:21,473 INFO L271 CegarLoopResult]: At program point L74(lines 57 75) the Hoare annotation is: true [2020-07-28 17:53:21,473 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-07-28 17:53:21,473 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:53:21,474 INFO L268 CegarLoopResult]: For program point L25(lines 25 38) no Hoare annotation was computed. [2020-07-28 17:53:21,474 INFO L268 CegarLoopResult]: For program point L46(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:21,474 INFO L268 CegarLoopResult]: For program point L46-1(lines 11 52) no Hoare annotation was computed. [2020-07-28 17:53:21,474 INFO L268 CegarLoopResult]: For program point L46-2(lines 46 50) no Hoare annotation was computed. [2020-07-28 17:53:21,474 INFO L264 CegarLoopResult]: At program point L55(line 55) the Hoare annotation is: (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:53:21,474 INFO L264 CegarLoopResult]: At program point L51(lines 11 52) the Hoare annotation is: (and (= |ULTIMATE.start_round_float_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven .cse0 .cse0))) (= ULTIMATE.start_round_float_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2020-07-28 17:53:21,480 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:53:21,480 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:53:21,480 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:21,481 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:21,481 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:21,481 WARN L170 areAnnotationChecker]: L16-1 has no Hoare annotation [2020-07-28 17:53:21,481 WARN L170 areAnnotationChecker]: L16-3 has no Hoare annotation [2020-07-28 17:53:21,481 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L24 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L25 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L40 has no Hoare annotation [2020-07-28 17:53:21,482 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:21,483 WARN L170 areAnnotationChecker]: L27 has no Hoare annotation [2020-07-28 17:53:21,483 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:21,483 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:53:21,487 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L46-1 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L46 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L46-2 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:53:21,488 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:53:21,489 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:53:21,489 WARN L170 areAnnotationChecker]: L70 has no Hoare annotation [2020-07-28 17:53:21,489 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:21,489 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:53:21,489 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 17:53:21,500 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,503 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,504 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,506 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,511 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,512 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,515 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,517 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,517 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,522 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,525 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,526 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,527 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,529 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,530 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,532 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,533 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,533 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,534 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,535 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,537 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:21,538 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,540 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,541 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:21,541 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,545 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:53:21 BoogieIcfgContainer [2020-07-28 17:53:21,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:53:21,546 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:53:21,546 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:53:21,547 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:53:21,547 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:53:16" (3/4) ... [2020-07-28 17:53:21,551 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:53:21,561 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-07-28 17:53:21,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-07-28 17:53:21,562 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:53:21,591 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) [2020-07-28 17:53:21,592 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:53:21,592 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2020-07-28 17:53:21,622 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:53:21,622 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:53:21,627 INFO L168 Benchmark]: Toolchain (without parser) took 5975.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 957.5 MB in the beginning and 873.3 MB in the end (delta: 84.3 MB). Peak memory consumption was 212.2 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:21,628 INFO L168 Benchmark]: CDTParser took 0.27 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 17:53:21,628 INFO L168 Benchmark]: CACSL2BoogieTranslator took 419.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:21,635 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:21,635 INFO L168 Benchmark]: Boogie Preprocessor took 42.20 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 17:53:21,635 INFO L168 Benchmark]: RCFGBuilder took 514.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:21,636 INFO L168 Benchmark]: TraceAbstraction took 4858.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.3 MB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 11.5 GB. [2020-07-28 17:53:21,636 INFO L168 Benchmark]: Witness Printer took 75.84 ms. Allocated memory is still 1.2 GB. Free memory is still 873.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:53:21,640 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 0.27 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 419.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 127.9 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -164.6 MB). Peak memory consumption was 20.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.22 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 42.20 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 514.97 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 24.7 MB). Peak memory consumption was 24.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4858.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 873.3 MB in the end (delta: 217.5 MB). Peak memory consumption was 217.5 MB. Max. memory is 11.5 GB. * Witness Printer took 75.84 ms. Allocated memory is still 1.2 GB. Free memory is still 873.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 70]: 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: 57]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 55]: Loop Invariant [2020-07-28 17:53:21,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,648 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,649 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,649 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,650 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,651 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((1bv32 == \result && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()))) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 11]: Loop Invariant [2020-07-28 17:53:21,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,651 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,652 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,652 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,653 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,654 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 16]: Loop Invariant [2020-07-28 17:53:21,654 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,654 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:21,655 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2020-07-28 17:53:21,655 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2020-07-28 17:53:21,655 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[currentRoundingMode,QUANTIFIED] [2020-07-28 17:53:21,656 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven && (\exists currentRoundingMode : FloatRoundingMode :: x == ~fp.div~FLOAT(currentRoundingMode, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 21 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.6s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 43 SDtfs, 52 SDslu, 70 SDs, 0 SdLazy, 42 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 71 GetRequests, 50 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred 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, 59 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 6 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 66 ConstructedInterpolants, 5 QuantifiedInterpolants, 3580 SizeOfPredicates, 17 NumberOfNonLiveVariables, 97 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...