./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_1231.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_1231.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 65a8838494b0fa2a560742eb829642f08a5d8cc8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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_1231.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 65a8838494b0fa2a560742eb829642f08a5d8cc8 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ 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 17:54:12,341 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:54:12,344 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:54:12,362 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:54:12,362 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:54:12,365 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:54:12,367 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:54:12,378 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:54:12,380 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:54:12,383 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:54:12,385 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:54:12,387 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:54:12,388 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:54:12,391 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:54:12,392 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:54:12,394 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:54:12,396 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:54:12,398 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:54:12,401 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:54:12,407 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:54:12,413 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:54:12,416 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:54:12,418 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:54:12,419 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:54:12,422 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:54:12,423 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:54:12,423 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:54:12,425 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:54:12,426 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:54:12,427 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:54:12,427 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:54:12,428 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:54:12,429 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:54:12,430 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:54:12,431 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:54:12,432 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:54:12,432 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:54:12,433 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:54:12,433 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:54:12,434 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:54:12,435 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:54:12,436 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 17:54:12,473 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:54:12,474 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:54:12,475 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:54:12,475 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:54:12,476 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:54:12,476 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:54:12,480 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:54:12,481 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 17:54:12,481 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:54:12,481 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:54:12,481 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:54:12,481 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:54:12,482 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:54:12,482 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:54:12,482 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:54:12,482 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:54:12,482 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:54:12,483 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:54:12,483 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:54:12,484 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:54:12,485 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:54:12,485 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:54:12,485 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:54:12,485 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:54:12,485 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:54:12,486 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 17:54:12,486 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 17:54:12,486 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:54:12,486 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:54:12,486 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 -> 65a8838494b0fa2a560742eb829642f08a5d8cc8 [2020-07-28 17:54:12,823 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:54:12,839 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:54:12,843 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:54:12,845 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:54:12,845 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:54:12,846 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2020-07-28 17:54:12,913 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146146fad/fe4fb44b377a43e3ab5c4ebd3df53497/FLAG39ad9404d [2020-07-28 17:54:13,434 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:54:13,435 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2020-07-28 17:54:13,444 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146146fad/fe4fb44b377a43e3ab5c4ebd3df53497/FLAG39ad9404d [2020-07-28 17:54:13,809 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/146146fad/fe4fb44b377a43e3ab5c4ebd3df53497 [2020-07-28 17:54:13,812 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:54:13,815 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:54:13,817 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:54:13,817 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:54:13,821 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:54:13,823 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:54:13" (1/1) ... [2020-07-28 17:54:13,827 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2fb1bcc7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:13, skipping insertion in model container [2020-07-28 17:54:13,827 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:54:13" (1/1) ... [2020-07-28 17:54:13,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:54:13,857 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:54:14,078 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:54:14,083 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:54:14,118 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:54:14,209 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:54:14,210 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14 WrapperNode [2020-07-28 17:54:14,210 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:54:14,211 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:54:14,212 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:54:14,212 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:54:14,224 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,236 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,284 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:54:14,285 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:54:14,285 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:54:14,285 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:54:14,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,300 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,315 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,323 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,326 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (1/1) ... [2020-07-28 17:54:14,330 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:54:14,331 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:54:14,331 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:54:14,332 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:54:14,333 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (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 17:54:14,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:54:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2020-07-28 17:54:14,411 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:54:14,412 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:54:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-28 17:54:14,413 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:54:15,142 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:54:15,143 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-07-28 17:54:15,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:15 BoogieIcfgContainer [2020-07-28 17:54:15,148 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:54:15,149 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:54:15,149 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:54:15,153 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:54:15,153 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:54:13" (1/3) ... [2020-07-28 17:54:15,154 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b194b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:54:15, skipping insertion in model container [2020-07-28 17:54:15,154 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:14" (2/3) ... [2020-07-28 17:54:15,155 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@21b194b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:54:15, skipping insertion in model container [2020-07-28 17:54:15,155 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:15" (3/3) ... [2020-07-28 17:54:15,157 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1231.c [2020-07-28 17:54:15,169 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:54:15,178 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-28 17:54:15,193 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-28 17:54:15,220 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:54:15,221 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:54:15,221 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:54:15,221 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:54:15,221 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:54:15,221 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:54:15,222 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:54:15,222 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:54:15,241 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-07-28 17:54:15,250 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 17:54:15,251 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:15,252 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:15,253 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:15,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:15,261 INFO L82 PathProgramCache]: Analyzing trace with hash 1204154757, now seen corresponding path program 1 times [2020-07-28 17:54:15,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:54:15,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1521517930] [2020-07-28 17:54:15,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:54:15,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:15,469 INFO L280 TraceCheckUtils]: 0: Hoare triple {50#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {50#true} is VALID [2020-07-28 17:54:15,470 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {50#true} is VALID [2020-07-28 17:54:15,471 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#true} main_#t~ret9 := isnan_float_#res;assume -2147483648 <= main_#t~ret9 && main_#t~ret9 <= 2147483647;main_#t~short11 := 0 != main_#t~ret9; {50#true} is VALID [2020-07-28 17:54:15,472 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#true} assume !main_#t~short11; {52#(not |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:54:15,473 INFO L280 TraceCheckUtils]: 4: Hoare triple {52#(not |ULTIMATE.start_main_#t~short11|)} main_#t~short15 := main_#t~short11; {53#(not |ULTIMATE.start_main_#t~short15|)} is VALID [2020-07-28 17:54:15,475 INFO L280 TraceCheckUtils]: 5: Hoare triple {53#(not |ULTIMATE.start_main_#t~short15|)} assume main_#t~short15; {51#false} is VALID [2020-07-28 17:54:15,475 INFO L280 TraceCheckUtils]: 6: Hoare triple {51#false} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret9;havoc main_#t~ret12;havoc main_#t~short14;havoc main_#t~short15;havoc main_#t~ret10;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {51#false} is VALID [2020-07-28 17:54:15,476 INFO L280 TraceCheckUtils]: 7: Hoare triple {51#false} assume !true; {51#false} is VALID [2020-07-28 17:54:15,476 INFO L280 TraceCheckUtils]: 8: Hoare triple {51#false} assume 0 == __fpclassify_float_~w~0 % 4294967296 || 2147483648 == __fpclassify_float_~w~0 % 4294967296;__fpclassify_float_#res := 2; {51#false} is VALID [2020-07-28 17:54:15,477 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#false} fmin_float_#t~ret2 := __fpclassify_float_#res;assume -2147483648 <= fmin_float_#t~ret2 && fmin_float_#t~ret2 <= 2147483647; {51#false} is VALID [2020-07-28 17:54:15,477 INFO L280 TraceCheckUtils]: 10: Hoare triple {51#false} assume 0 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {51#false} is VALID [2020-07-28 17:54:15,478 INFO L280 TraceCheckUtils]: 11: Hoare triple {51#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {51#false} is VALID [2020-07-28 17:54:15,478 INFO L280 TraceCheckUtils]: 12: Hoare triple {51#false} main_#t~ret17 := isnan_float_#res;assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647;main_#t~short19 := 0 != main_#t~ret17; {51#false} is VALID [2020-07-28 17:54:15,478 INFO L280 TraceCheckUtils]: 13: Hoare triple {51#false} assume !main_#t~short19; {51#false} is VALID [2020-07-28 17:54:15,479 INFO L280 TraceCheckUtils]: 14: Hoare triple {51#false} assume main_#t~short19 && ~someBinaryFLOATComparisonOperation(main_~res~0, main_~y~0);havoc main_#t~short19;havoc main_#t~ret18;havoc main_#t~ret17; {51#false} is VALID [2020-07-28 17:54:15,479 INFO L280 TraceCheckUtils]: 15: Hoare triple {51#false} assume !false; {51#false} is VALID [2020-07-28 17:54:15,483 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 17:54:15,484 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1521517930] [2020-07-28 17:54:15,485 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:15,485 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 17:54:15,486 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011194225] [2020-07-28 17:54:15,493 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 17:54:15,494 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:15,499 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:54:15,528 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:15,529 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:54:15,529 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:54:15,538 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:54:15,539 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:54:15,542 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 4 states. [2020-07-28 17:54:15,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:15,876 INFO L93 Difference]: Finished difference Result 90 states and 134 transitions. [2020-07-28 17:54:15,876 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:54:15,877 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 17:54:15,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:15,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:15,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2020-07-28 17:54:15,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:15,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 134 transitions. [2020-07-28 17:54:15,912 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 134 transitions. [2020-07-28 17:54:16,125 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 134 edges. 134 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:16,140 INFO L225 Difference]: With dead ends: 90 [2020-07-28 17:54:16,140 INFO L226 Difference]: Without dead ends: 50 [2020-07-28 17:54:16,145 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:54:16,166 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-28 17:54:16,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2020-07-28 17:54:16,192 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:16,193 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:16,194 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:16,194 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:16,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:16,200 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-07-28 17:54:16,201 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2020-07-28 17:54:16,202 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:16,202 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:16,203 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 50 states. [2020-07-28 17:54:16,203 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 50 states. [2020-07-28 17:54:16,207 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:16,210 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-07-28 17:54:16,211 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2020-07-28 17:54:16,211 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:16,212 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:16,212 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:16,212 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:16,212 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 17:54:16,216 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-07-28 17:54:16,218 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 16 [2020-07-28 17:54:16,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:16,219 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-07-28 17:54:16,220 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:54:16,222 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-07-28 17:54:16,223 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 17:54:16,224 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:16,225 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:16,225 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 17:54:16,226 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:16,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:16,228 INFO L82 PathProgramCache]: Analyzing trace with hash 44236684, now seen corresponding path program 1 times [2020-07-28 17:54:16,229 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:54:16,229 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1613171352] [2020-07-28 17:54:16,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:54:16,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:16,406 INFO L280 TraceCheckUtils]: 0: Hoare triple {332#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {332#true} is VALID [2020-07-28 17:54:16,407 INFO L280 TraceCheckUtils]: 1: Hoare triple {332#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {332#true} is VALID [2020-07-28 17:54:16,407 INFO L280 TraceCheckUtils]: 2: Hoare triple {332#true} main_#t~ret9 := isnan_float_#res;assume -2147483648 <= main_#t~ret9 && main_#t~ret9 <= 2147483647;main_#t~short11 := 0 != main_#t~ret9; {332#true} is VALID [2020-07-28 17:54:16,407 INFO L280 TraceCheckUtils]: 3: Hoare triple {332#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {332#true} is VALID [2020-07-28 17:54:16,408 INFO L280 TraceCheckUtils]: 4: Hoare triple {332#true} main_#t~ret10 := isnan_float_#res;assume -2147483648 <= main_#t~ret10 && main_#t~ret10 <= 2147483647;main_#t~short11 := 0 == main_#t~ret10; {332#true} is VALID [2020-07-28 17:54:16,408 INFO L280 TraceCheckUtils]: 5: Hoare triple {332#true} main_#t~short15 := main_#t~short11; {332#true} is VALID [2020-07-28 17:54:16,409 INFO L280 TraceCheckUtils]: 6: Hoare triple {332#true} assume main_#t~short15; {332#true} is VALID [2020-07-28 17:54:16,409 INFO L280 TraceCheckUtils]: 7: Hoare triple {332#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret9;havoc main_#t~ret12;havoc main_#t~short14;havoc main_#t~short15;havoc main_#t~ret10;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {332#true} is VALID [2020-07-28 17:54:16,409 INFO L280 TraceCheckUtils]: 8: Hoare triple {332#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4);call write~real(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);call __fpclassify_float_#t~mem0 := read~int(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~real(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {332#true} is VALID [2020-07-28 17:54:16,410 INFO L280 TraceCheckUtils]: 9: Hoare triple {332#true} goto; {332#true} is VALID [2020-07-28 17:54:16,411 INFO L280 TraceCheckUtils]: 10: Hoare triple {332#true} assume 0 == __fpclassify_float_~w~0 % 4294967296 || 2147483648 == __fpclassify_float_~w~0 % 4294967296;__fpclassify_float_#res := 2; {334#(<= 2 |ULTIMATE.start___fpclassify_float_#res|)} is VALID [2020-07-28 17:54:16,412 INFO L280 TraceCheckUtils]: 11: Hoare triple {334#(<= 2 |ULTIMATE.start___fpclassify_float_#res|)} fmin_float_#t~ret2 := __fpclassify_float_#res;assume -2147483648 <= fmin_float_#t~ret2 && fmin_float_#t~ret2 <= 2147483647; {335#(<= 2 |ULTIMATE.start_fmin_float_#t~ret2|)} is VALID [2020-07-28 17:54:16,413 INFO L280 TraceCheckUtils]: 12: Hoare triple {335#(<= 2 |ULTIMATE.start_fmin_float_#t~ret2|)} assume 0 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {333#false} is VALID [2020-07-28 17:54:16,413 INFO L280 TraceCheckUtils]: 13: Hoare triple {333#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {333#false} is VALID [2020-07-28 17:54:16,414 INFO L280 TraceCheckUtils]: 14: Hoare triple {333#false} main_#t~ret17 := isnan_float_#res;assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647;main_#t~short19 := 0 != main_#t~ret17; {333#false} is VALID [2020-07-28 17:54:16,414 INFO L280 TraceCheckUtils]: 15: Hoare triple {333#false} assume !main_#t~short19; {333#false} is VALID [2020-07-28 17:54:16,414 INFO L280 TraceCheckUtils]: 16: Hoare triple {333#false} assume main_#t~short19 && ~someBinaryFLOATComparisonOperation(main_~res~0, main_~y~0);havoc main_#t~short19;havoc main_#t~ret18;havoc main_#t~ret17; {333#false} is VALID [2020-07-28 17:54:16,415 INFO L280 TraceCheckUtils]: 17: Hoare triple {333#false} assume !false; {333#false} is VALID [2020-07-28 17:54:16,417 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 17:54:16,417 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1613171352] [2020-07-28 17:54:16,417 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:16,418 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 17:54:16,418 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [470938508] [2020-07-28 17:54:16,420 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 17:54:16,420 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:16,421 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:54:16,446 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 17:54:16,447 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:54:16,447 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:54:16,447 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:54:16,448 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:54:16,448 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 4 states. [2020-07-28 17:54:16,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:16,714 INFO L93 Difference]: Finished difference Result 77 states and 97 transitions. [2020-07-28 17:54:16,715 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 17:54:16,715 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 18 [2020-07-28 17:54:16,715 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:16,716 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:16,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2020-07-28 17:54:16,719 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:16,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 95 transitions. [2020-07-28 17:54:16,722 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 95 transitions. [2020-07-28 17:54:16,884 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 95 edges. 95 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:16,887 INFO L225 Difference]: With dead ends: 77 [2020-07-28 17:54:16,887 INFO L226 Difference]: Without dead ends: 64 [2020-07-28 17:54:16,888 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:54:16,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-28 17:54:16,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 47. [2020-07-28 17:54:16,911 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:16,911 INFO L82 GeneralOperation]: Start isEquivalent. First operand 64 states. Second operand 47 states. [2020-07-28 17:54:16,912 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 47 states. [2020-07-28 17:54:16,912 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 47 states. [2020-07-28 17:54:16,920 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:16,921 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2020-07-28 17:54:16,921 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2020-07-28 17:54:16,923 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:16,923 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:16,924 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 64 states. [2020-07-28 17:54:16,924 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 64 states. [2020-07-28 17:54:16,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:16,930 INFO L93 Difference]: Finished difference Result 64 states and 82 transitions. [2020-07-28 17:54:16,930 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 82 transitions. [2020-07-28 17:54:16,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:16,933 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:16,933 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:16,934 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:16,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-28 17:54:16,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-07-28 17:54:16,938 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 18 [2020-07-28 17:54:16,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:16,939 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-07-28 17:54:16,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:54:16,939 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-07-28 17:54:16,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-28 17:54:16,942 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:16,942 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:16,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 17:54:16,943 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:16,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:16,944 INFO L82 PathProgramCache]: Analyzing trace with hash -1380709804, now seen corresponding path program 1 times [2020-07-28 17:54:16,945 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:54:16,946 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1691575211] [2020-07-28 17:54:16,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:54:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:17,043 INFO L280 TraceCheckUtils]: 0: Hoare triple {631#true} #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier; {631#true} is VALID [2020-07-28 17:54:17,044 INFO L280 TraceCheckUtils]: 1: Hoare triple {631#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {631#true} is VALID [2020-07-28 17:54:17,044 INFO L280 TraceCheckUtils]: 2: Hoare triple {631#true} main_#t~ret9 := isnan_float_#res;assume -2147483648 <= main_#t~ret9 && main_#t~ret9 <= 2147483647;main_#t~short11 := 0 != main_#t~ret9; {631#true} is VALID [2020-07-28 17:54:17,044 INFO L280 TraceCheckUtils]: 3: Hoare triple {631#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {631#true} is VALID [2020-07-28 17:54:17,045 INFO L280 TraceCheckUtils]: 4: Hoare triple {631#true} main_#t~ret10 := isnan_float_#res;assume -2147483648 <= main_#t~ret10 && main_#t~ret10 <= 2147483647;main_#t~short11 := 0 == main_#t~ret10; {631#true} is VALID [2020-07-28 17:54:17,045 INFO L280 TraceCheckUtils]: 5: Hoare triple {631#true} main_#t~short15 := main_#t~short11; {631#true} is VALID [2020-07-28 17:54:17,046 INFO L280 TraceCheckUtils]: 6: Hoare triple {631#true} assume main_#t~short15; {631#true} is VALID [2020-07-28 17:54:17,046 INFO L280 TraceCheckUtils]: 7: Hoare triple {631#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret9;havoc main_#t~ret12;havoc main_#t~short14;havoc main_#t~short15;havoc main_#t~ret10;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {631#true} is VALID [2020-07-28 17:54:17,046 INFO L280 TraceCheckUtils]: 8: Hoare triple {631#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4);call write~real(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);call __fpclassify_float_#t~mem0 := read~int(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~real(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {631#true} is VALID [2020-07-28 17:54:17,046 INFO L280 TraceCheckUtils]: 9: Hoare triple {631#true} goto; {631#true} is VALID [2020-07-28 17:54:17,047 INFO L280 TraceCheckUtils]: 10: Hoare triple {631#true} assume !(0 == __fpclassify_float_~w~0 % 4294967296 || 2147483648 == __fpclassify_float_~w~0 % 4294967296); {631#true} is VALID [2020-07-28 17:54:17,047 INFO L280 TraceCheckUtils]: 11: Hoare triple {631#true} assume !((__fpclassify_float_~w~0 % 4294967296 >= 8388608 && __fpclassify_float_~w~0 % 4294967296 <= 2139095039) || (__fpclassify_float_~w~0 % 4294967296 >= 2155872256 && __fpclassify_float_~w~0 % 4294967296 <= 4286578687)); {631#true} is VALID [2020-07-28 17:54:17,048 INFO L280 TraceCheckUtils]: 12: Hoare triple {631#true} assume !((__fpclassify_float_~w~0 % 4294967296 >= 1 && __fpclassify_float_~w~0 % 4294967296 <= 8388607) || (__fpclassify_float_~w~0 % 4294967296 >= 2147483649 && __fpclassify_float_~w~0 % 4294967296 <= 2155872255)); {631#true} is VALID [2020-07-28 17:54:17,048 INFO L280 TraceCheckUtils]: 13: Hoare triple {631#true} assume !(2139095040 == __fpclassify_float_~w~0 % 4294967296 || 4286578688 == __fpclassify_float_~w~0 % 4294967296);__fpclassify_float_#res := 0; {631#true} is VALID [2020-07-28 17:54:17,048 INFO L280 TraceCheckUtils]: 14: Hoare triple {631#true} fmin_float_#t~ret2 := __fpclassify_float_#res;assume -2147483648 <= fmin_float_#t~ret2 && fmin_float_#t~ret2 <= 2147483647; {631#true} is VALID [2020-07-28 17:54:17,049 INFO L280 TraceCheckUtils]: 15: Hoare triple {631#true} assume 0 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {631#true} is VALID [2020-07-28 17:54:17,049 INFO L280 TraceCheckUtils]: 16: Hoare triple {631#true} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {631#true} is VALID [2020-07-28 17:54:17,049 INFO L280 TraceCheckUtils]: 17: Hoare triple {631#true} main_#t~ret17 := isnan_float_#res;assume -2147483648 <= main_#t~ret17 && main_#t~ret17 <= 2147483647;main_#t~short19 := 0 != main_#t~ret17; {631#true} is VALID [2020-07-28 17:54:17,051 INFO L280 TraceCheckUtils]: 18: Hoare triple {631#true} assume !main_#t~short19; {633#(not |ULTIMATE.start_main_#t~short19|)} is VALID [2020-07-28 17:54:17,052 INFO L280 TraceCheckUtils]: 19: Hoare triple {633#(not |ULTIMATE.start_main_#t~short19|)} assume main_#t~short19 && ~someBinaryFLOATComparisonOperation(main_~res~0, main_~y~0);havoc main_#t~short19;havoc main_#t~ret18;havoc main_#t~ret17; {632#false} is VALID [2020-07-28 17:54:17,053 INFO L280 TraceCheckUtils]: 20: Hoare triple {632#false} assume !false; {632#false} is VALID [2020-07-28 17:54:17,054 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 17:54:17,054 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1691575211] [2020-07-28 17:54:17,054 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:17,055 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 17:54:17,055 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [333792139] [2020-07-28 17:54:17,056 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-28 17:54:17,056 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:17,056 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:54:17,088 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 17:54:17,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:54:17,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 17:54:17,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:54:17,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:54:17,090 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 3 states. [2020-07-28 17:54:17,214 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:17,215 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2020-07-28 17:54:17,215 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:54:17,215 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 21 [2020-07-28 17:54:17,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:17,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:54:17,217 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2020-07-28 17:54:17,218 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:54:17,219 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2020-07-28 17:54:17,219 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 61 transitions. [2020-07-28 17:54:17,318 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:17,321 INFO L225 Difference]: With dead ends: 50 [2020-07-28 17:54:17,322 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 17:54:17,322 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:54:17,323 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 17:54:17,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-07-28 17:54:17,343 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:17,343 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2020-07-28 17:54:17,343 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 17:54:17,343 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 17:54:17,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:17,346 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2020-07-28 17:54:17,346 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2020-07-28 17:54:17,347 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:17,347 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:17,347 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 17:54:17,348 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 17:54:17,350 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:17,351 INFO L93 Difference]: Finished difference Result 48 states and 63 transitions. [2020-07-28 17:54:17,351 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2020-07-28 17:54:17,352 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:17,352 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:17,352 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:17,352 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:17,353 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-28 17:54:17,355 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 63 transitions. [2020-07-28 17:54:17,356 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 63 transitions. Word has length 21 [2020-07-28 17:54:17,356 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:17,356 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 63 transitions. [2020-07-28 17:54:17,356 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:54:17,357 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 63 transitions. [2020-07-28 17:54:17,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 17:54:17,358 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:17,358 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:17,358 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 17:54:17,358 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:17,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:17,359 INFO L82 PathProgramCache]: Analyzing trace with hash 147544209, now seen corresponding path program 1 times [2020-07-28 17:54:17,359 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 17:54:17,360 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [251592348] [2020-07-28 17:54:17,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 17:54:17,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:54:17,596 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:54:17,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-28 17:54:17,751 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-28 17:54:17,803 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-07-28 17:54:17,803 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-28 17:54:17,804 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: L57 has no Hoare annotation [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:54:17,866 WARN L170 areAnnotationChecker]: L57-1 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L68-2 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L68-3 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L68-3 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L68-5 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L68-5 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L57-2 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 17:54:17,867 WARN L170 areAnnotationChecker]: L15-2 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L68-7 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 17:54:17,868 WARN L170 areAnnotationChecker]: L86 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L57-3 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L32 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:54:17,869 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L41-3 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L15-6 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L15-6 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:54:17,870 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:54:17,871 WARN L170 areAnnotationChecker]: L57-4 has no Hoare annotation [2020-07-28 17:54:17,871 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 17:54:17,871 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 17:54:17,871 WARN L170 areAnnotationChecker]: L15-7 has no Hoare annotation [2020-07-28 17:54:17,872 WARN L170 areAnnotationChecker]: L15-7 has no Hoare annotation [2020-07-28 17:54:17,872 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:54:17,872 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:54:17,872 WARN L170 areAnnotationChecker]: L32-1 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L57-5 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:54:17,873 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 17:54:17,874 WARN L170 areAnnotationChecker]: L57-6 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-28 17:54:17,875 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2020-07-28 17:54:17,876 WARN L170 areAnnotationChecker]: L57-7 has no Hoare annotation [2020-07-28 17:54:17,876 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-28 17:54:17,876 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-28 17:54:17,876 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-28 17:54:17,877 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-28 17:54:17,877 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 17:54:17,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:54:17 BoogieIcfgContainer [2020-07-28 17:54:17,883 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:54:17,884 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:54:17,884 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:54:17,884 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:54:17,885 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:15" (3/4) ... [2020-07-28 17:54:17,890 INFO L140 WitnessPrinter]: No result that supports witness generation found [2020-07-28 17:54:17,890 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:54:17,894 INFO L168 Benchmark]: Toolchain (without parser) took 4079.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 962.9 MB in the beginning and 849.6 MB in the end (delta: 113.3 MB). Peak memory consumption was 248.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:17,895 INFO L168 Benchmark]: CDTParser took 0.45 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 17:54:17,896 INFO L168 Benchmark]: CACSL2BoogieTranslator took 394.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 962.9 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:17,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.88 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 17:54:17,900 INFO L168 Benchmark]: Boogie Preprocessor took 46.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:54:17,901 INFO L168 Benchmark]: RCFGBuilder took 816.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:17,907 INFO L168 Benchmark]: TraceAbstraction took 2734.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.6 MB in the end (delta: 227.9 MB). Peak memory consumption was 227.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:54:17,907 INFO L168 Benchmark]: Witness Printer took 6.93 ms. Allocated memory is still 1.2 GB. Free memory is still 849.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:54:17,919 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 0.45 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 394.23 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 962.9 MB in the beginning and 1.1 GB in the end (delta: -166.5 MB). Peak memory consumption was 21.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.88 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 46.05 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 816.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 45.3 MB). Peak memory consumption was 45.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2734.18 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 849.6 MB in the end (delta: 227.9 MB). Peak memory consumption was 227.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.93 ms. Allocated memory is still 1.2 GB. Free memory is still 849.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 75]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 74. Possible FailurePath: [L66] float x = __VERIFIER_nondet_float(); [L67] float y = __VERIFIER_nondet_float(); [L57] return x != x; [L68] EXPR isnan_float(x) && !isnan_float(y) [L57] return x != x; [L68] EXPR isnan_float(x) && !isnan_float(y) [L68-L69] (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L68-L69] COND TRUE (isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y)) [L13] __uint32_t w; [L16] ieee_float_shape_type gf_u; [L17] gf_u.value = (x) [L18] EXPR gf_u.word [L18] (w) = gf_u.word [L21] COND FALSE !(w == 0x00000000 || w == 0x80000000) [L23-L24] COND FALSE !((w >= 0x00800000 && w <= 0x7f7fffff) || (w >= 0x80800000 && w <= 0xff7fffff)) [L26-L27] COND FALSE !((w >= 0x00000001 && w <= 0x007fffff) || (w >= 0x80000001 && w <= 0x807fffff)) [L29] COND FALSE !(w == 0x7f800000 || w == 0xff800000) [L32] return 0; [L36] COND TRUE __fpclassify_float(x) == 0 [L37] return y; [L71] float res = fmin_float(x, y); [L57] return x != x; [L74] EXPR isnan_float(x) && !isnan_float(y) [L57] return x != x; [L74] EXPR isnan_float(x) && !isnan_float(y) [L74] COND TRUE isnan_float(x) && !isnan_float(y) && res != y [L75] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 2.5s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 1.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 189 SDtfs, 37 SDslu, 269 SDs, 0 SdLazy, 42 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=48occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 3 MinimizatonAttempts, 22 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1032 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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 17:54:19,873 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 17:54:19,876 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 17:54:19,896 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 17:54:19,896 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 17:54:19,899 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 17:54:19,901 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 17:54:19,912 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 17:54:19,918 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 17:54:19,921 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 17:54:19,923 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 17:54:19,925 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 17:54:19,925 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 17:54:19,927 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 17:54:19,928 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 17:54:19,931 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 17:54:19,933 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 17:54:19,934 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 17:54:19,936 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 17:54:19,940 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 17:54:19,945 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 17:54:19,949 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 17:54:19,951 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 17:54:19,952 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 17:54:19,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 17:54:19,955 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 17:54:19,955 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 17:54:19,957 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 17:54:19,957 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 17:54:19,958 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 17:54:19,958 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 17:54:19,960 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 17:54:19,960 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 17:54:19,961 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 17:54:19,962 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 17:54:19,963 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 17:54:19,963 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 17:54:19,964 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 17:54:19,964 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 17:54:19,965 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 17:54:19,966 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 17:54:19,967 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2020-07-28 17:54:20,003 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 17:54:20,006 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 17:54:20,008 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 17:54:20,008 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 17:54:20,008 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 17:54:20,009 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 17:54:20,009 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 17:54:20,011 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 17:54:20,011 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 17:54:20,012 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 17:54:20,012 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 17:54:20,012 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 17:54:20,012 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2020-07-28 17:54:20,013 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2020-07-28 17:54:20,013 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 17:54:20,013 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 17:54:20,013 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 17:54:20,013 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 17:54:20,014 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 17:54:20,014 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 17:54:20,014 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 17:54:20,017 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 17:54:20,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 17:54:20,017 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 17:54:20,018 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 17:54:20,018 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 17:54:20,018 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2020-07-28 17:54:20,018 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2020-07-28 17:54:20,018 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 17:54:20,019 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 17:54:20,019 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-07-28 17:54:20,019 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 -> 65a8838494b0fa2a560742eb829642f08a5d8cc8 [2020-07-28 17:54:20,362 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 17:54:20,380 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 17:54:20,384 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 17:54:20,386 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 17:54:20,387 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 17:54:20,388 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2020-07-28 17:54:20,470 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fff2122a/663556a4d12c434398d6033b4d1f44c9/FLAG8d3768496 [2020-07-28 17:54:20,896 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 17:54:20,897 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_1231.c [2020-07-28 17:54:20,905 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fff2122a/663556a4d12c434398d6033b4d1f44c9/FLAG8d3768496 [2020-07-28 17:54:21,267 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4fff2122a/663556a4d12c434398d6033b4d1f44c9 [2020-07-28 17:54:21,271 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 17:54:21,275 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 17:54:21,276 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 17:54:21,276 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 17:54:21,282 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 17:54:21,284 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,288 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@40176bfd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21, skipping insertion in model container [2020-07-28 17:54:21,288 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,298 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 17:54:21,325 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 17:54:21,603 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:54:21,611 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 17:54:21,646 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 17:54:21,676 INFO L208 MainTranslator]: Completed translation [2020-07-28 17:54:21,677 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21 WrapperNode [2020-07-28 17:54:21,677 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 17:54:21,678 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 17:54:21,678 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 17:54:21,678 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 17:54:21,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,769 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,816 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 17:54:21,823 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 17:54:21,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 17:54:21,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 17:54:21,831 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,831 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,836 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,836 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,849 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,856 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,858 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (1/1) ... [2020-07-28 17:54:21,863 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 17:54:21,863 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 17:54:21,863 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 17:54:21,864 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 17:54:21,865 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (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 17:54:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 17:54:21,934 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2020-07-28 17:54:21,939 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 17:54:21,939 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 17:54:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2020-07-28 17:54:21,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 17:54:22,562 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 17:54:22,563 INFO L295 CfgBuilder]: Removed 30 assume(true) statements. [2020-07-28 17:54:22,567 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:22 BoogieIcfgContainer [2020-07-28 17:54:22,568 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 17:54:22,569 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 17:54:22,569 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 17:54:22,572 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 17:54:22,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 05:54:21" (1/3) ... [2020-07-28 17:54:22,574 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a26e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:54:22, skipping insertion in model container [2020-07-28 17:54:22,574 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 05:54:21" (2/3) ... [2020-07-28 17:54:22,575 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@36a26e6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 05:54:22, skipping insertion in model container [2020-07-28 17:54:22,575 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:22" (3/3) ... [2020-07-28 17:54:22,577 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_1231.c [2020-07-28 17:54:22,588 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 17:54:22,596 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2020-07-28 17:54:22,608 INFO L251 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2020-07-28 17:54:22,628 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 17:54:22,628 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 17:54:22,628 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 17:54:22,629 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 17:54:22,629 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 17:54:22,629 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 17:54:22,629 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 17:54:22,630 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 17:54:22,644 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states. [2020-07-28 17:54:22,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 17:54:22,651 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:22,652 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:22,652 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:22,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:22,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1204154757, now seen corresponding path program 1 times [2020-07-28 17:54:22,671 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:22,672 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1195990621] [2020-07-28 17:54:22,672 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 17:54:22,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:22,759 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-28 17:54:22,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:22,778 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:22,821 INFO L280 TraceCheckUtils]: 0: Hoare triple {50#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {50#true} is VALID [2020-07-28 17:54:22,822 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {50#true} is VALID [2020-07-28 17:54:22,823 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {50#true} is VALID [2020-07-28 17:54:22,823 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#true} assume !main_#t~short11; {50#true} is VALID [2020-07-28 17:54:22,824 INFO L280 TraceCheckUtils]: 4: Hoare triple {50#true} main_#t~short15 := main_#t~short11; {50#true} is VALID [2020-07-28 17:54:22,824 INFO L280 TraceCheckUtils]: 5: Hoare triple {50#true} assume main_#t~short15; {50#true} is VALID [2020-07-28 17:54:22,825 INFO L280 TraceCheckUtils]: 6: Hoare triple {50#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {50#true} is VALID [2020-07-28 17:54:22,827 INFO L280 TraceCheckUtils]: 7: Hoare triple {50#true} assume !true; {51#false} is VALID [2020-07-28 17:54:22,827 INFO L280 TraceCheckUtils]: 8: Hoare triple {51#false} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {51#false} is VALID [2020-07-28 17:54:22,828 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {51#false} is VALID [2020-07-28 17:54:22,828 INFO L280 TraceCheckUtils]: 10: Hoare triple {51#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {51#false} is VALID [2020-07-28 17:54:22,829 INFO L280 TraceCheckUtils]: 11: Hoare triple {51#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {51#false} is VALID [2020-07-28 17:54:22,829 INFO L280 TraceCheckUtils]: 12: Hoare triple {51#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {51#false} is VALID [2020-07-28 17:54:22,829 INFO L280 TraceCheckUtils]: 13: Hoare triple {51#false} assume !main_#t~short19; {51#false} is VALID [2020-07-28 17:54:22,830 INFO L280 TraceCheckUtils]: 14: Hoare triple {51#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {51#false} is VALID [2020-07-28 17:54:22,830 INFO L280 TraceCheckUtils]: 15: Hoare triple {51#false} assume !false; {51#false} is VALID [2020-07-28 17:54:22,834 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 17:54:22,834 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:22,856 INFO L280 TraceCheckUtils]: 15: Hoare triple {51#false} assume !false; {51#false} is VALID [2020-07-28 17:54:22,857 INFO L280 TraceCheckUtils]: 14: Hoare triple {51#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {51#false} is VALID [2020-07-28 17:54:22,857 INFO L280 TraceCheckUtils]: 13: Hoare triple {51#false} assume !main_#t~short19; {51#false} is VALID [2020-07-28 17:54:22,857 INFO L280 TraceCheckUtils]: 12: Hoare triple {51#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {51#false} is VALID [2020-07-28 17:54:22,858 INFO L280 TraceCheckUtils]: 11: Hoare triple {51#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {51#false} is VALID [2020-07-28 17:54:22,858 INFO L280 TraceCheckUtils]: 10: Hoare triple {51#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {51#false} is VALID [2020-07-28 17:54:22,859 INFO L280 TraceCheckUtils]: 9: Hoare triple {51#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {51#false} is VALID [2020-07-28 17:54:22,859 INFO L280 TraceCheckUtils]: 8: Hoare triple {51#false} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {51#false} is VALID [2020-07-28 17:54:22,860 INFO L280 TraceCheckUtils]: 7: Hoare triple {50#true} assume !true; {51#false} is VALID [2020-07-28 17:54:22,860 INFO L280 TraceCheckUtils]: 6: Hoare triple {50#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {50#true} is VALID [2020-07-28 17:54:22,861 INFO L280 TraceCheckUtils]: 5: Hoare triple {50#true} assume main_#t~short15; {50#true} is VALID [2020-07-28 17:54:22,861 INFO L280 TraceCheckUtils]: 4: Hoare triple {50#true} main_#t~short15 := main_#t~short11; {50#true} is VALID [2020-07-28 17:54:22,862 INFO L280 TraceCheckUtils]: 3: Hoare triple {50#true} assume !main_#t~short11; {50#true} is VALID [2020-07-28 17:54:22,862 INFO L280 TraceCheckUtils]: 2: Hoare triple {50#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {50#true} is VALID [2020-07-28 17:54:22,862 INFO L280 TraceCheckUtils]: 1: Hoare triple {50#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {50#true} is VALID [2020-07-28 17:54:22,863 INFO L280 TraceCheckUtils]: 0: Hoare triple {50#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {50#true} is VALID [2020-07-28 17:54:22,864 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 17:54:22,865 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1195990621] [2020-07-28 17:54:22,866 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:22,866 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2020-07-28 17:54:22,867 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [206938410] [2020-07-28 17:54:22,874 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 17:54:22,875 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:22,880 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states. [2020-07-28 17:54:22,914 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:22,914 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-28 17:54:22,914 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:22,924 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-28 17:54:22,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-28 17:54:22,927 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 2 states. [2020-07-28 17:54:23,076 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:23,076 INFO L93 Difference]: Finished difference Result 82 states and 122 transitions. [2020-07-28 17:54:23,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-28 17:54:23,077 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 16 [2020-07-28 17:54:23,077 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:23,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:54:23,089 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 122 transitions. [2020-07-28 17:54:23,090 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2 states. [2020-07-28 17:54:23,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2 states to 2 states and 122 transitions. [2020-07-28 17:54:23,096 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 2 states and 122 transitions. [2020-07-28 17:54:23,306 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 122 edges. 122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:23,320 INFO L225 Difference]: With dead ends: 82 [2020-07-28 17:54:23,320 INFO L226 Difference]: Without dead ends: 43 [2020-07-28 17:54:23,324 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 30 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 17:54:23,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2020-07-28 17:54:23,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 43. [2020-07-28 17:54:23,367 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:23,368 INFO L82 GeneralOperation]: Start isEquivalent. First operand 43 states. Second operand 43 states. [2020-07-28 17:54:23,369 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2020-07-28 17:54:23,369 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2020-07-28 17:54:23,374 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:23,375 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2020-07-28 17:54:23,375 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-07-28 17:54:23,376 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:23,376 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:23,377 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 43 states. [2020-07-28 17:54:23,377 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 43 states. [2020-07-28 17:54:23,381 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:23,381 INFO L93 Difference]: Finished difference Result 43 states and 58 transitions. [2020-07-28 17:54:23,382 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-07-28 17:54:23,382 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:23,383 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:23,383 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:23,384 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:23,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-28 17:54:23,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 58 transitions. [2020-07-28 17:54:23,389 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 58 transitions. Word has length 16 [2020-07-28 17:54:23,390 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:23,390 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 58 transitions. [2020-07-28 17:54:23,390 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-28 17:54:23,390 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 58 transitions. [2020-07-28 17:54:23,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2020-07-28 17:54:23,392 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:23,392 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:23,606 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2020-07-28 17:54:23,607 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:23,607 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:23,608 INFO L82 PathProgramCache]: Analyzing trace with hash 1262247077, now seen corresponding path program 1 times [2020-07-28 17:54:23,609 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:23,610 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1449444237] [2020-07-28 17:54:23,610 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 17:54:23,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:23,686 INFO L263 TraceCheckSpWp]: Trace formula consists of 50 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 17:54:23,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:23,701 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:23,746 INFO L280 TraceCheckUtils]: 0: Hoare triple {392#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {392#true} is VALID [2020-07-28 17:54:23,746 INFO L280 TraceCheckUtils]: 1: Hoare triple {392#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {392#true} is VALID [2020-07-28 17:54:23,747 INFO L280 TraceCheckUtils]: 2: Hoare triple {392#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {392#true} is VALID [2020-07-28 17:54:23,747 INFO L280 TraceCheckUtils]: 3: Hoare triple {392#true} assume !main_#t~short11; {406#(not |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:54:23,748 INFO L280 TraceCheckUtils]: 4: Hoare triple {406#(not |ULTIMATE.start_main_#t~short11|)} main_#t~short15 := main_#t~short11; {410#(not |ULTIMATE.start_main_#t~short15|)} is VALID [2020-07-28 17:54:23,749 INFO L280 TraceCheckUtils]: 5: Hoare triple {410#(not |ULTIMATE.start_main_#t~short15|)} assume main_#t~short15; {393#false} is VALID [2020-07-28 17:54:23,749 INFO L280 TraceCheckUtils]: 6: Hoare triple {393#false} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {393#false} is VALID [2020-07-28 17:54:23,750 INFO L280 TraceCheckUtils]: 7: Hoare triple {393#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {393#false} is VALID [2020-07-28 17:54:23,750 INFO L280 TraceCheckUtils]: 8: Hoare triple {393#false} goto; {393#false} is VALID [2020-07-28 17:54:23,751 INFO L280 TraceCheckUtils]: 9: Hoare triple {393#false} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {393#false} is VALID [2020-07-28 17:54:23,751 INFO L280 TraceCheckUtils]: 10: Hoare triple {393#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {393#false} is VALID [2020-07-28 17:54:23,751 INFO L280 TraceCheckUtils]: 11: Hoare triple {393#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {393#false} is VALID [2020-07-28 17:54:23,752 INFO L280 TraceCheckUtils]: 12: Hoare triple {393#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {393#false} is VALID [2020-07-28 17:54:23,752 INFO L280 TraceCheckUtils]: 13: Hoare triple {393#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {393#false} is VALID [2020-07-28 17:54:23,752 INFO L280 TraceCheckUtils]: 14: Hoare triple {393#false} assume !main_#t~short19; {393#false} is VALID [2020-07-28 17:54:23,753 INFO L280 TraceCheckUtils]: 15: Hoare triple {393#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {393#false} is VALID [2020-07-28 17:54:23,753 INFO L280 TraceCheckUtils]: 16: Hoare triple {393#false} assume !false; {393#false} is VALID [2020-07-28 17:54:23,754 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 17:54:23,754 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:23,771 INFO L280 TraceCheckUtils]: 16: Hoare triple {393#false} assume !false; {393#false} is VALID [2020-07-28 17:54:23,771 INFO L280 TraceCheckUtils]: 15: Hoare triple {393#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {393#false} is VALID [2020-07-28 17:54:23,771 INFO L280 TraceCheckUtils]: 14: Hoare triple {393#false} assume !main_#t~short19; {393#false} is VALID [2020-07-28 17:54:23,772 INFO L280 TraceCheckUtils]: 13: Hoare triple {393#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {393#false} is VALID [2020-07-28 17:54:23,772 INFO L280 TraceCheckUtils]: 12: Hoare triple {393#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {393#false} is VALID [2020-07-28 17:54:23,773 INFO L280 TraceCheckUtils]: 11: Hoare triple {393#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {393#false} is VALID [2020-07-28 17:54:23,773 INFO L280 TraceCheckUtils]: 10: Hoare triple {393#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {393#false} is VALID [2020-07-28 17:54:23,773 INFO L280 TraceCheckUtils]: 9: Hoare triple {393#false} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {393#false} is VALID [2020-07-28 17:54:23,773 INFO L280 TraceCheckUtils]: 8: Hoare triple {393#false} goto; {393#false} is VALID [2020-07-28 17:54:23,774 INFO L280 TraceCheckUtils]: 7: Hoare triple {393#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {393#false} is VALID [2020-07-28 17:54:23,774 INFO L280 TraceCheckUtils]: 6: Hoare triple {393#false} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {393#false} is VALID [2020-07-28 17:54:23,775 INFO L280 TraceCheckUtils]: 5: Hoare triple {410#(not |ULTIMATE.start_main_#t~short15|)} assume main_#t~short15; {393#false} is VALID [2020-07-28 17:54:23,776 INFO L280 TraceCheckUtils]: 4: Hoare triple {406#(not |ULTIMATE.start_main_#t~short11|)} main_#t~short15 := main_#t~short11; {410#(not |ULTIMATE.start_main_#t~short15|)} is VALID [2020-07-28 17:54:23,777 INFO L280 TraceCheckUtils]: 3: Hoare triple {392#true} assume !main_#t~short11; {406#(not |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:54:23,777 INFO L280 TraceCheckUtils]: 2: Hoare triple {392#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {392#true} is VALID [2020-07-28 17:54:23,777 INFO L280 TraceCheckUtils]: 1: Hoare triple {392#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {392#true} is VALID [2020-07-28 17:54:23,778 INFO L280 TraceCheckUtils]: 0: Hoare triple {392#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {392#true} is VALID [2020-07-28 17:54:23,778 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 17:54:23,779 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1449444237] [2020-07-28 17:54:23,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:23,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-07-28 17:54:23,780 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284253652] [2020-07-28 17:54:23,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 17:54:23,782 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:23,782 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:54:23,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 17 edges. 17 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:23,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:54:23,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:23,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:54:23,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:54:23,811 INFO L87 Difference]: Start difference. First operand 43 states and 58 transitions. Second operand 4 states. [2020-07-28 17:54:24,139 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:24,139 INFO L93 Difference]: Finished difference Result 82 states and 111 transitions. [2020-07-28 17:54:24,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 17:54:24,140 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2020-07-28 17:54:24,140 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:24,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:24,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-28 17:54:24,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:54:24,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 111 transitions. [2020-07-28 17:54:24,146 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 111 transitions. [2020-07-28 17:54:24,326 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 111 edges. 111 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:24,328 INFO L225 Difference]: With dead ends: 82 [2020-07-28 17:54:24,328 INFO L226 Difference]: Without dead ends: 50 [2020-07-28 17:54:24,330 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:54:24,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50 states. [2020-07-28 17:54:24,343 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50 to 45. [2020-07-28 17:54:24,343 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:24,344 INFO L82 GeneralOperation]: Start isEquivalent. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:24,344 INFO L74 IsIncluded]: Start isIncluded. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:24,344 INFO L87 Difference]: Start difference. First operand 50 states. Second operand 45 states. [2020-07-28 17:54:24,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:24,348 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-07-28 17:54:24,349 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2020-07-28 17:54:24,349 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:24,350 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:24,350 INFO L74 IsIncluded]: Start isIncluded. First operand 45 states. Second operand 50 states. [2020-07-28 17:54:24,350 INFO L87 Difference]: Start difference. First operand 45 states. Second operand 50 states. [2020-07-28 17:54:24,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:24,354 INFO L93 Difference]: Finished difference Result 50 states and 66 transitions. [2020-07-28 17:54:24,354 INFO L276 IsEmpty]: Start isEmpty. Operand 50 states and 66 transitions. [2020-07-28 17:54:24,355 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:24,356 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:24,356 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:24,356 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:24,356 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 45 states. [2020-07-28 17:54:24,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 45 states to 45 states and 60 transitions. [2020-07-28 17:54:24,360 INFO L78 Accepts]: Start accepts. Automaton has 45 states and 60 transitions. Word has length 17 [2020-07-28 17:54:24,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:24,360 INFO L479 AbstractCegarLoop]: Abstraction has 45 states and 60 transitions. [2020-07-28 17:54:24,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:54:24,361 INFO L276 IsEmpty]: Start isEmpty. Operand 45 states and 60 transitions. [2020-07-28 17:54:24,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-07-28 17:54:24,362 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:24,363 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:24,576 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2020-07-28 17:54:24,577 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:24,577 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:24,578 INFO L82 PathProgramCache]: Analyzing trace with hash 44236684, now seen corresponding path program 1 times [2020-07-28 17:54:24,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:24,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1921251530] [2020-07-28 17:54:24,580 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 17:54:24,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:24,637 INFO L263 TraceCheckSpWp]: Trace formula consists of 55 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 17:54:24,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:24,651 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:24,701 INFO L280 TraceCheckUtils]: 0: Hoare triple {760#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {760#true} is VALID [2020-07-28 17:54:24,702 INFO L280 TraceCheckUtils]: 1: Hoare triple {760#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {760#true} is VALID [2020-07-28 17:54:24,702 INFO L280 TraceCheckUtils]: 2: Hoare triple {760#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {760#true} is VALID [2020-07-28 17:54:24,703 INFO L280 TraceCheckUtils]: 3: Hoare triple {760#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {760#true} is VALID [2020-07-28 17:54:24,703 INFO L280 TraceCheckUtils]: 4: Hoare triple {760#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {760#true} is VALID [2020-07-28 17:54:24,703 INFO L280 TraceCheckUtils]: 5: Hoare triple {760#true} main_#t~short15 := main_#t~short11; {760#true} is VALID [2020-07-28 17:54:24,704 INFO L280 TraceCheckUtils]: 6: Hoare triple {760#true} assume main_#t~short15; {760#true} is VALID [2020-07-28 17:54:24,704 INFO L280 TraceCheckUtils]: 7: Hoare triple {760#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {760#true} is VALID [2020-07-28 17:54:24,705 INFO L280 TraceCheckUtils]: 8: Hoare triple {760#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {760#true} is VALID [2020-07-28 17:54:24,705 INFO L280 TraceCheckUtils]: 9: Hoare triple {760#true} goto; {760#true} is VALID [2020-07-28 17:54:24,706 INFO L280 TraceCheckUtils]: 10: Hoare triple {760#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {795#(= (_ bv2 32) |ULTIMATE.start___fpclassify_float_#res|)} is VALID [2020-07-28 17:54:24,708 INFO L280 TraceCheckUtils]: 11: Hoare triple {795#(= (_ bv2 32) |ULTIMATE.start___fpclassify_float_#res|)} fmin_float_#t~ret2 := __fpclassify_float_#res; {799#(= (bvadd |ULTIMATE.start_fmin_float_#t~ret2| (_ bv4294967294 32)) (_ bv0 32))} is VALID [2020-07-28 17:54:24,709 INFO L280 TraceCheckUtils]: 12: Hoare triple {799#(= (bvadd |ULTIMATE.start_fmin_float_#t~ret2| (_ bv4294967294 32)) (_ bv0 32))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {761#false} is VALID [2020-07-28 17:54:24,710 INFO L280 TraceCheckUtils]: 13: Hoare triple {761#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {761#false} is VALID [2020-07-28 17:54:24,710 INFO L280 TraceCheckUtils]: 14: Hoare triple {761#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {761#false} is VALID [2020-07-28 17:54:24,710 INFO L280 TraceCheckUtils]: 15: Hoare triple {761#false} assume !main_#t~short19; {761#false} is VALID [2020-07-28 17:54:24,711 INFO L280 TraceCheckUtils]: 16: Hoare triple {761#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {761#false} is VALID [2020-07-28 17:54:24,711 INFO L280 TraceCheckUtils]: 17: Hoare triple {761#false} assume !false; {761#false} is VALID [2020-07-28 17:54:24,712 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 17:54:24,712 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:24,746 INFO L280 TraceCheckUtils]: 17: Hoare triple {761#false} assume !false; {761#false} is VALID [2020-07-28 17:54:24,746 INFO L280 TraceCheckUtils]: 16: Hoare triple {761#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {761#false} is VALID [2020-07-28 17:54:24,746 INFO L280 TraceCheckUtils]: 15: Hoare triple {761#false} assume !main_#t~short19; {761#false} is VALID [2020-07-28 17:54:24,747 INFO L280 TraceCheckUtils]: 14: Hoare triple {761#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {761#false} is VALID [2020-07-28 17:54:24,747 INFO L280 TraceCheckUtils]: 13: Hoare triple {761#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {761#false} is VALID [2020-07-28 17:54:24,748 INFO L280 TraceCheckUtils]: 12: Hoare triple {833#(not (= |ULTIMATE.start_fmin_float_#t~ret2| (_ bv0 32)))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {761#false} is VALID [2020-07-28 17:54:24,749 INFO L280 TraceCheckUtils]: 11: Hoare triple {837#(not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))} fmin_float_#t~ret2 := __fpclassify_float_#res; {833#(not (= |ULTIMATE.start_fmin_float_#t~ret2| (_ bv0 32)))} is VALID [2020-07-28 17:54:24,750 INFO L280 TraceCheckUtils]: 10: Hoare triple {760#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {837#(not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))} is VALID [2020-07-28 17:54:24,750 INFO L280 TraceCheckUtils]: 9: Hoare triple {760#true} goto; {760#true} is VALID [2020-07-28 17:54:24,751 INFO L280 TraceCheckUtils]: 8: Hoare triple {760#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {760#true} is VALID [2020-07-28 17:54:24,751 INFO L280 TraceCheckUtils]: 7: Hoare triple {760#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {760#true} is VALID [2020-07-28 17:54:24,751 INFO L280 TraceCheckUtils]: 6: Hoare triple {760#true} assume main_#t~short15; {760#true} is VALID [2020-07-28 17:54:24,752 INFO L280 TraceCheckUtils]: 5: Hoare triple {760#true} main_#t~short15 := main_#t~short11; {760#true} is VALID [2020-07-28 17:54:24,752 INFO L280 TraceCheckUtils]: 4: Hoare triple {760#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {760#true} is VALID [2020-07-28 17:54:24,753 INFO L280 TraceCheckUtils]: 3: Hoare triple {760#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {760#true} is VALID [2020-07-28 17:54:24,753 INFO L280 TraceCheckUtils]: 2: Hoare triple {760#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {760#true} is VALID [2020-07-28 17:54:24,753 INFO L280 TraceCheckUtils]: 1: Hoare triple {760#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {760#true} is VALID [2020-07-28 17:54:24,754 INFO L280 TraceCheckUtils]: 0: Hoare triple {760#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {760#true} is VALID [2020-07-28 17:54:24,755 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 17:54:24,755 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1921251530] [2020-07-28 17:54:24,755 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:24,755 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 17:54:24,756 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [370819838] [2020-07-28 17:54:24,756 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-28 17:54:24,757 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:24,757 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 17:54:24,785 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 17:54:24,785 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 17:54:24,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:24,786 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 17:54:24,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:54:24,786 INFO L87 Difference]: Start difference. First operand 45 states and 60 transitions. Second operand 6 states. [2020-07-28 17:54:25,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:25,288 INFO L93 Difference]: Finished difference Result 96 states and 120 transitions. [2020-07-28 17:54:25,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:54:25,289 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 18 [2020-07-28 17:54:25,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:25,289 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:54:25,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2020-07-28 17:54:25,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:54:25,296 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 118 transitions. [2020-07-28 17:54:25,296 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 118 transitions. [2020-07-28 17:54:25,486 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 118 edges. 118 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:25,490 INFO L225 Difference]: With dead ends: 96 [2020-07-28 17:54:25,491 INFO L226 Difference]: Without dead ends: 83 [2020-07-28 17:54:25,491 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:54:25,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 83 states. [2020-07-28 17:54:25,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 83 to 47. [2020-07-28 17:54:25,508 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:25,508 INFO L82 GeneralOperation]: Start isEquivalent. First operand 83 states. Second operand 47 states. [2020-07-28 17:54:25,509 INFO L74 IsIncluded]: Start isIncluded. First operand 83 states. Second operand 47 states. [2020-07-28 17:54:25,509 INFO L87 Difference]: Start difference. First operand 83 states. Second operand 47 states. [2020-07-28 17:54:25,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:25,513 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2020-07-28 17:54:25,513 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 104 transitions. [2020-07-28 17:54:25,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:25,514 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:25,514 INFO L74 IsIncluded]: Start isIncluded. First operand 47 states. Second operand 83 states. [2020-07-28 17:54:25,515 INFO L87 Difference]: Start difference. First operand 47 states. Second operand 83 states. [2020-07-28 17:54:25,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:25,519 INFO L93 Difference]: Finished difference Result 83 states and 104 transitions. [2020-07-28 17:54:25,519 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 104 transitions. [2020-07-28 17:54:25,520 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:25,520 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:25,520 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:25,520 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:25,521 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 47 states. [2020-07-28 17:54:25,523 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 47 states to 47 states and 62 transitions. [2020-07-28 17:54:25,523 INFO L78 Accepts]: Start accepts. Automaton has 47 states and 62 transitions. Word has length 18 [2020-07-28 17:54:25,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:25,523 INFO L479 AbstractCegarLoop]: Abstraction has 47 states and 62 transitions. [2020-07-28 17:54:25,524 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 17:54:25,524 INFO L276 IsEmpty]: Start isEmpty. Operand 47 states and 62 transitions. [2020-07-28 17:54:25,524 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2020-07-28 17:54:25,525 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:25,525 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:25,743 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2020-07-28 17:54:25,744 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:25,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:25,744 INFO L82 PathProgramCache]: Analyzing trace with hash -1380709804, now seen corresponding path program 1 times [2020-07-28 17:54:25,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:25,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1799568830] [2020-07-28 17:54:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 5 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:25,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:25,802 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:25,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:25,817 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:25,861 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:25,862 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:25,940 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:25,967 INFO L280 TraceCheckUtils]: 0: Hoare triple {1229#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {1229#true} is VALID [2020-07-28 17:54:25,969 INFO L280 TraceCheckUtils]: 1: Hoare triple {1229#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {1237#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:25,970 INFO L280 TraceCheckUtils]: 2: Hoare triple {1237#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {1241#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:25,971 INFO L280 TraceCheckUtils]: 3: Hoare triple {1241#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,971 INFO L280 TraceCheckUtils]: 4: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,976 INFO L280 TraceCheckUtils]: 5: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,977 INFO L280 TraceCheckUtils]: 6: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,978 INFO L280 TraceCheckUtils]: 7: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,979 INFO L280 TraceCheckUtils]: 8: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,979 INFO L280 TraceCheckUtils]: 9: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} goto; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,980 INFO L280 TraceCheckUtils]: 10: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,980 INFO L280 TraceCheckUtils]: 11: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,981 INFO L280 TraceCheckUtils]: 12: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,981 INFO L280 TraceCheckUtils]: 13: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,982 INFO L280 TraceCheckUtils]: 14: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,982 INFO L280 TraceCheckUtils]: 15: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:25,983 INFO L280 TraceCheckUtils]: 16: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {1285#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:25,983 INFO L280 TraceCheckUtils]: 17: Hoare triple {1285#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {1289#|ULTIMATE.start_main_#t~short19|} is VALID [2020-07-28 17:54:25,992 INFO L280 TraceCheckUtils]: 18: Hoare triple {1289#|ULTIMATE.start_main_#t~short19|} assume !main_#t~short19; {1230#false} is VALID [2020-07-28 17:54:25,992 INFO L280 TraceCheckUtils]: 19: Hoare triple {1230#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {1230#false} is VALID [2020-07-28 17:54:25,992 INFO L280 TraceCheckUtils]: 20: Hoare triple {1230#false} assume !false; {1230#false} is VALID [2020-07-28 17:54:25,994 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 17:54:25,994 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:26,129 INFO L280 TraceCheckUtils]: 20: Hoare triple {1230#false} assume !false; {1230#false} is VALID [2020-07-28 17:54:26,129 INFO L280 TraceCheckUtils]: 19: Hoare triple {1230#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {1230#false} is VALID [2020-07-28 17:54:26,130 INFO L280 TraceCheckUtils]: 18: Hoare triple {1289#|ULTIMATE.start_main_#t~short19|} assume !main_#t~short19; {1230#false} is VALID [2020-07-28 17:54:26,132 INFO L280 TraceCheckUtils]: 17: Hoare triple {1308#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {1289#|ULTIMATE.start_main_#t~short19|} is VALID [2020-07-28 17:54:26,132 INFO L280 TraceCheckUtils]: 16: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {1308#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:26,137 INFO L280 TraceCheckUtils]: 15: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,138 INFO L280 TraceCheckUtils]: 14: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,139 INFO L280 TraceCheckUtils]: 13: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,139 INFO L280 TraceCheckUtils]: 12: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,140 INFO L280 TraceCheckUtils]: 11: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,141 INFO L280 TraceCheckUtils]: 10: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,141 INFO L280 TraceCheckUtils]: 9: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} goto; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,142 INFO L280 TraceCheckUtils]: 8: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,142 INFO L280 TraceCheckUtils]: 7: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,142 INFO L280 TraceCheckUtils]: 6: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,143 INFO L280 TraceCheckUtils]: 5: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,144 INFO L280 TraceCheckUtils]: 4: Hoare triple {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,144 INFO L280 TraceCheckUtils]: 3: Hoare triple {1351#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {1245#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:26,152 INFO L280 TraceCheckUtils]: 2: Hoare triple {1355#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {1351#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} is VALID [2020-07-28 17:54:26,153 INFO L280 TraceCheckUtils]: 1: Hoare triple {1229#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {1355#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:26,153 INFO L280 TraceCheckUtils]: 0: Hoare triple {1229#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {1229#true} is VALID [2020-07-28 17:54:26,155 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 17:54:26,156 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1799568830] [2020-07-28 17:54:26,156 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:26,156 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2020-07-28 17:54:26,157 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230360714] [2020-07-28 17:54:26,157 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-07-28 17:54:26,157 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:26,158 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:54:26,198 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 17:54:26,198 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:54:26,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:26,199 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:54:26,199 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:54:26,199 INFO L87 Difference]: Start difference. First operand 47 states and 62 transitions. Second operand 10 states. [2020-07-28 17:54:28,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:28,198 INFO L93 Difference]: Finished difference Result 149 states and 197 transitions. [2020-07-28 17:54:28,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-28 17:54:28,198 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 21 [2020-07-28 17:54:28,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:28,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:28,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2020-07-28 17:54:28,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:28,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 189 transitions. [2020-07-28 17:54:28,206 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 189 transitions. [2020-07-28 17:54:28,529 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 189 edges. 189 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:28,534 INFO L225 Difference]: With dead ends: 149 [2020-07-28 17:54:28,534 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 17:54:28,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 45 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:54:28,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 17:54:28,591 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 75. [2020-07-28 17:54:28,591 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:28,592 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 75 states. [2020-07-28 17:54:28,592 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 75 states. [2020-07-28 17:54:28,592 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 75 states. [2020-07-28 17:54:28,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:28,603 INFO L93 Difference]: Finished difference Result 140 states and 187 transitions. [2020-07-28 17:54:28,603 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 187 transitions. [2020-07-28 17:54:28,604 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:28,605 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:28,605 INFO L74 IsIncluded]: Start isIncluded. First operand 75 states. Second operand 140 states. [2020-07-28 17:54:28,605 INFO L87 Difference]: Start difference. First operand 75 states. Second operand 140 states. [2020-07-28 17:54:28,621 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:28,622 INFO L93 Difference]: Finished difference Result 140 states and 187 transitions. [2020-07-28 17:54:28,622 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 187 transitions. [2020-07-28 17:54:28,622 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:28,622 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:28,623 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:28,623 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:28,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 75 states. [2020-07-28 17:54:28,626 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 75 states to 75 states and 102 transitions. [2020-07-28 17:54:28,626 INFO L78 Accepts]: Start accepts. Automaton has 75 states and 102 transitions. Word has length 21 [2020-07-28 17:54:28,627 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:28,627 INFO L479 AbstractCegarLoop]: Abstraction has 75 states and 102 transitions. [2020-07-28 17:54:28,627 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:54:28,627 INFO L276 IsEmpty]: Start isEmpty. Operand 75 states and 102 transitions. [2020-07-28 17:54:28,628 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2020-07-28 17:54:28,628 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:28,629 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:28,844 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2020-07-28 17:54:28,844 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:28,844 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:28,844 INFO L82 PathProgramCache]: Analyzing trace with hash 147544209, now seen corresponding path program 1 times [2020-07-28 17:54:28,845 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:28,845 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1635009071] [2020-07-28 17:54:28,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 6 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:28,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:28,911 INFO L263 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:28,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:28,923 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:28,955 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:28,957 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:28,990 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:29,192 INFO L280 TraceCheckUtils]: 0: Hoare triple {1938#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {1938#true} is VALID [2020-07-28 17:54:29,193 INFO L280 TraceCheckUtils]: 1: Hoare triple {1938#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {1938#true} is VALID [2020-07-28 17:54:29,193 INFO L280 TraceCheckUtils]: 2: Hoare triple {1938#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {1938#true} is VALID [2020-07-28 17:54:29,195 INFO L280 TraceCheckUtils]: 3: Hoare triple {1938#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {1952#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:29,196 INFO L280 TraceCheckUtils]: 4: Hoare triple {1952#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {1956#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (not |ULTIMATE.start_main_#t~short11|)) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short11|))} is VALID [2020-07-28 17:54:29,197 INFO L280 TraceCheckUtils]: 5: Hoare triple {1956#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (not |ULTIMATE.start_main_#t~short11|)) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short11|))} main_#t~short15 := main_#t~short11; {1960#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short15|) (and (not |ULTIMATE.start_main_#t~short15|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))))} is VALID [2020-07-28 17:54:29,197 INFO L280 TraceCheckUtils]: 6: Hoare triple {1960#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short15|) (and (not |ULTIMATE.start_main_#t~short15|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))))} assume main_#t~short15; {1964#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,198 INFO L280 TraceCheckUtils]: 7: Hoare triple {1964#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,199 INFO L280 TraceCheckUtils]: 8: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,199 INFO L280 TraceCheckUtils]: 9: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} goto; {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,200 INFO L280 TraceCheckUtils]: 10: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,201 INFO L280 TraceCheckUtils]: 11: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,201 INFO L280 TraceCheckUtils]: 12: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,202 INFO L280 TraceCheckUtils]: 13: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,202 INFO L280 TraceCheckUtils]: 14: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:29,203 INFO L280 TraceCheckUtils]: 15: Hoare triple {1968#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {1993#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|))} is VALID [2020-07-28 17:54:29,206 INFO L280 TraceCheckUtils]: 16: Hoare triple {1993#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:29,212 INFO L280 TraceCheckUtils]: 17: Hoare triple {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:29,213 INFO L280 TraceCheckUtils]: 18: Hoare triple {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:29,213 INFO L280 TraceCheckUtils]: 19: Hoare triple {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:29,214 INFO L280 TraceCheckUtils]: 20: Hoare triple {1997#(and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {1939#false} is VALID [2020-07-28 17:54:29,214 INFO L280 TraceCheckUtils]: 21: Hoare triple {1939#false} assume !false; {1939#false} is VALID [2020-07-28 17:54:29,216 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 17:54:29,216 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:29,393 INFO L280 TraceCheckUtils]: 21: Hoare triple {1939#false} assume !false; {1939#false} is VALID [2020-07-28 17:54:29,394 INFO L280 TraceCheckUtils]: 20: Hoare triple {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {1939#false} is VALID [2020-07-28 17:54:29,394 INFO L280 TraceCheckUtils]: 19: Hoare triple {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,395 INFO L280 TraceCheckUtils]: 18: Hoare triple {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,395 INFO L280 TraceCheckUtils]: 17: Hoare triple {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,396 INFO L280 TraceCheckUtils]: 16: Hoare triple {2029#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {2016#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,396 INFO L280 TraceCheckUtils]: 15: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {2029#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,397 INFO L280 TraceCheckUtils]: 14: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} fmin_float_#t~ret2 := __fpclassify_float_#res; {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,397 INFO L280 TraceCheckUtils]: 13: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,398 INFO L280 TraceCheckUtils]: 12: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,398 INFO L280 TraceCheckUtils]: 11: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,399 INFO L280 TraceCheckUtils]: 10: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,399 INFO L280 TraceCheckUtils]: 9: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} goto; {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,400 INFO L280 TraceCheckUtils]: 8: Hoare triple {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,400 INFO L280 TraceCheckUtils]: 7: Hoare triple {1964#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {2033#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,401 INFO L280 TraceCheckUtils]: 6: Hoare triple {2061#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15; {1964#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:29,402 INFO L280 TraceCheckUtils]: 5: Hoare triple {2065#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short11|))} main_#t~short15 := main_#t~short11; {2061#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:54:29,403 INFO L280 TraceCheckUtils]: 4: Hoare triple {2069#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {2065#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short11|))} is VALID [2020-07-28 17:54:29,403 INFO L280 TraceCheckUtils]: 3: Hoare triple {1938#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {2069#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:29,404 INFO L280 TraceCheckUtils]: 2: Hoare triple {1938#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {1938#true} is VALID [2020-07-28 17:54:29,404 INFO L280 TraceCheckUtils]: 1: Hoare triple {1938#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {1938#true} is VALID [2020-07-28 17:54:29,404 INFO L280 TraceCheckUtils]: 0: Hoare triple {1938#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {1938#true} is VALID [2020-07-28 17:54:29,406 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 17:54:29,406 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1635009071] [2020-07-28 17:54:29,406 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:29,407 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 15 [2020-07-28 17:54:29,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770476156] [2020-07-28 17:54:29,407 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 22 [2020-07-28 17:54:29,408 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:29,408 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-28 17:54:29,471 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 40 edges. 40 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:29,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-28 17:54:29,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:29,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-28 17:54:29,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:54:29,472 INFO L87 Difference]: Start difference. First operand 75 states and 102 transitions. Second operand 15 states. [2020-07-28 17:54:32,528 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:32,528 INFO L93 Difference]: Finished difference Result 180 states and 237 transitions. [2020-07-28 17:54:32,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-07-28 17:54:32,528 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 22 [2020-07-28 17:54:32,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:32,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:54:32,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 165 transitions. [2020-07-28 17:54:32,532 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:54:32,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 165 transitions. [2020-07-28 17:54:32,536 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 17 states and 165 transitions. [2020-07-28 17:54:32,809 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 165 edges. 165 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:32,815 INFO L225 Difference]: With dead ends: 180 [2020-07-28 17:54:32,815 INFO L226 Difference]: Without dead ends: 178 [2020-07-28 17:54:32,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 128 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=185, Invalid=465, Unknown=0, NotChecked=0, Total=650 [2020-07-28 17:54:32,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2020-07-28 17:54:32,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 89. [2020-07-28 17:54:32,881 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:32,881 INFO L82 GeneralOperation]: Start isEquivalent. First operand 178 states. Second operand 89 states. [2020-07-28 17:54:32,882 INFO L74 IsIncluded]: Start isIncluded. First operand 178 states. Second operand 89 states. [2020-07-28 17:54:32,882 INFO L87 Difference]: Start difference. First operand 178 states. Second operand 89 states. [2020-07-28 17:54:32,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:32,889 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2020-07-28 17:54:32,889 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 235 transitions. [2020-07-28 17:54:32,890 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:32,890 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:32,890 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 178 states. [2020-07-28 17:54:32,890 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 178 states. [2020-07-28 17:54:32,896 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:32,896 INFO L93 Difference]: Finished difference Result 178 states and 235 transitions. [2020-07-28 17:54:32,897 INFO L276 IsEmpty]: Start isEmpty. Operand 178 states and 235 transitions. [2020-07-28 17:54:32,897 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:32,897 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:32,897 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:32,898 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:32,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-07-28 17:54:32,901 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 121 transitions. [2020-07-28 17:54:32,901 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 121 transitions. Word has length 22 [2020-07-28 17:54:32,901 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:32,901 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 121 transitions. [2020-07-28 17:54:32,901 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-28 17:54:32,901 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 121 transitions. [2020-07-28 17:54:32,902 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2020-07-28 17:54:32,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:32,902 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:33,115 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 mathsat -unsat_core_generation=3 [2020-07-28 17:54:33,116 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:33,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:33,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1845695531, now seen corresponding path program 1 times [2020-07-28 17:54:33,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:33,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [92364150] [2020-07-28 17:54:33,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 7 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:33,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:33,183 INFO L263 TraceCheckSpWp]: Trace formula consists of 64 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:33,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:33,201 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:33,229 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:33,230 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:33,268 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:33,302 INFO L280 TraceCheckUtils]: 0: Hoare triple {2806#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {2806#true} is VALID [2020-07-28 17:54:33,304 INFO L280 TraceCheckUtils]: 1: Hoare triple {2806#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {2814#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:33,305 INFO L280 TraceCheckUtils]: 2: Hoare triple {2814#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {2818#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:33,306 INFO L280 TraceCheckUtils]: 3: Hoare triple {2818#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume !main_#t~short11; {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:33,308 INFO L280 TraceCheckUtils]: 4: Hoare triple {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:33,308 INFO L280 TraceCheckUtils]: 5: Hoare triple {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {2829#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:33,309 INFO L280 TraceCheckUtils]: 6: Hoare triple {2829#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {2833#|ULTIMATE.start_main_#t~short14|} is VALID [2020-07-28 17:54:33,310 INFO L280 TraceCheckUtils]: 7: Hoare triple {2833#|ULTIMATE.start_main_#t~short14|} assume !main_#t~short14; {2807#false} is VALID [2020-07-28 17:54:33,310 INFO L280 TraceCheckUtils]: 8: Hoare triple {2807#false} main_#t~short15 := main_#t~short14; {2807#false} is VALID [2020-07-28 17:54:33,311 INFO L280 TraceCheckUtils]: 9: Hoare triple {2807#false} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {2807#false} is VALID [2020-07-28 17:54:33,311 INFO L280 TraceCheckUtils]: 10: Hoare triple {2807#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {2807#false} is VALID [2020-07-28 17:54:33,311 INFO L280 TraceCheckUtils]: 11: Hoare triple {2807#false} goto; {2807#false} is VALID [2020-07-28 17:54:33,311 INFO L280 TraceCheckUtils]: 12: Hoare triple {2807#false} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {2807#false} is VALID [2020-07-28 17:54:33,311 INFO L280 TraceCheckUtils]: 13: Hoare triple {2807#false} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {2807#false} is VALID [2020-07-28 17:54:33,312 INFO L280 TraceCheckUtils]: 14: Hoare triple {2807#false} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {2807#false} is VALID [2020-07-28 17:54:33,312 INFO L280 TraceCheckUtils]: 15: Hoare triple {2807#false} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {2807#false} is VALID [2020-07-28 17:54:33,312 INFO L280 TraceCheckUtils]: 16: Hoare triple {2807#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {2807#false} is VALID [2020-07-28 17:54:33,313 INFO L280 TraceCheckUtils]: 17: Hoare triple {2807#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {2807#false} is VALID [2020-07-28 17:54:33,313 INFO L280 TraceCheckUtils]: 18: Hoare triple {2807#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {2807#false} is VALID [2020-07-28 17:54:33,313 INFO L280 TraceCheckUtils]: 19: Hoare triple {2807#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {2807#false} is VALID [2020-07-28 17:54:33,313 INFO L280 TraceCheckUtils]: 20: Hoare triple {2807#false} assume !main_#t~short19; {2807#false} is VALID [2020-07-28 17:54:33,313 INFO L280 TraceCheckUtils]: 21: Hoare triple {2807#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {2807#false} is VALID [2020-07-28 17:54:33,314 INFO L280 TraceCheckUtils]: 22: Hoare triple {2807#false} assume !false; {2807#false} is VALID [2020-07-28 17:54:33,319 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 17:54:33,320 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:33,375 INFO L342 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-28 17:54:33,375 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:54:33,422 INFO L280 TraceCheckUtils]: 22: Hoare triple {2807#false} assume !false; {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 21: Hoare triple {2807#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 20: Hoare triple {2807#false} assume !main_#t~short19; {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 19: Hoare triple {2807#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 18: Hoare triple {2807#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 17: Hoare triple {2807#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {2807#false} is VALID [2020-07-28 17:54:33,423 INFO L280 TraceCheckUtils]: 16: Hoare triple {2807#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {2807#false} is VALID [2020-07-28 17:54:33,424 INFO L280 TraceCheckUtils]: 15: Hoare triple {2807#false} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {2807#false} is VALID [2020-07-28 17:54:33,424 INFO L280 TraceCheckUtils]: 14: Hoare triple {2807#false} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {2807#false} is VALID [2020-07-28 17:54:33,424 INFO L280 TraceCheckUtils]: 13: Hoare triple {2807#false} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {2807#false} is VALID [2020-07-28 17:54:33,424 INFO L280 TraceCheckUtils]: 12: Hoare triple {2807#false} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {2807#false} is VALID [2020-07-28 17:54:33,424 INFO L280 TraceCheckUtils]: 11: Hoare triple {2807#false} goto; {2807#false} is VALID [2020-07-28 17:54:33,425 INFO L280 TraceCheckUtils]: 10: Hoare triple {2807#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {2807#false} is VALID [2020-07-28 17:54:33,425 INFO L280 TraceCheckUtils]: 9: Hoare triple {2807#false} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {2807#false} is VALID [2020-07-28 17:54:33,425 INFO L280 TraceCheckUtils]: 8: Hoare triple {2807#false} main_#t~short15 := main_#t~short14; {2807#false} is VALID [2020-07-28 17:54:33,426 INFO L280 TraceCheckUtils]: 7: Hoare triple {2833#|ULTIMATE.start_main_#t~short14|} assume !main_#t~short14; {2807#false} is VALID [2020-07-28 17:54:33,426 INFO L280 TraceCheckUtils]: 6: Hoare triple {2829#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {2833#|ULTIMATE.start_main_#t~short14|} is VALID [2020-07-28 17:54:33,427 INFO L280 TraceCheckUtils]: 5: Hoare triple {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {2829#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:33,427 INFO L280 TraceCheckUtils]: 4: Hoare triple {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:33,428 INFO L280 TraceCheckUtils]: 3: Hoare triple {2939#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} assume !main_#t~short11; {2822#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:33,428 INFO L280 TraceCheckUtils]: 2: Hoare triple {2943#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {2939#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:54:33,429 INFO L280 TraceCheckUtils]: 1: Hoare triple {2806#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {2943#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:33,429 INFO L280 TraceCheckUtils]: 0: Hoare triple {2806#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {2806#true} is VALID [2020-07-28 17:54:33,430 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 17:54:33,430 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [92364150] [2020-07-28 17:54:33,430 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:33,430 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2020-07-28 17:54:33,431 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1618890171] [2020-07-28 17:54:33,431 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-07-28 17:54:33,431 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:33,431 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 17:54:33,463 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 17:54:33,463 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 17:54:33,463 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:33,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 17:54:33,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-28 17:54:33,464 INFO L87 Difference]: Start difference. First operand 89 states and 121 transitions. Second operand 9 states. [2020-07-28 17:54:35,442 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:35,442 INFO L93 Difference]: Finished difference Result 166 states and 219 transitions. [2020-07-28 17:54:35,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 17:54:35,443 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 23 [2020-07-28 17:54:35,443 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:35,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:54:35,450 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 192 transitions. [2020-07-28 17:54:35,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:54:35,453 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 192 transitions. [2020-07-28 17:54:35,453 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 192 transitions. [2020-07-28 17:54:35,745 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 192 edges. 192 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:35,749 INFO L225 Difference]: With dead ends: 166 [2020-07-28 17:54:35,749 INFO L226 Difference]: Without dead ends: 131 [2020-07-28 17:54:35,750 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 37 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=71, Invalid=139, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:54:35,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-28 17:54:35,819 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 89. [2020-07-28 17:54:35,819 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:35,819 INFO L82 GeneralOperation]: Start isEquivalent. First operand 131 states. Second operand 89 states. [2020-07-28 17:54:35,819 INFO L74 IsIncluded]: Start isIncluded. First operand 131 states. Second operand 89 states. [2020-07-28 17:54:35,819 INFO L87 Difference]: Start difference. First operand 131 states. Second operand 89 states. [2020-07-28 17:54:35,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:35,825 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2020-07-28 17:54:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2020-07-28 17:54:35,825 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:35,826 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:35,826 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 131 states. [2020-07-28 17:54:35,826 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 131 states. [2020-07-28 17:54:35,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:35,831 INFO L93 Difference]: Finished difference Result 131 states and 171 transitions. [2020-07-28 17:54:35,831 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 171 transitions. [2020-07-28 17:54:35,831 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:35,832 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:35,832 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:35,832 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:35,832 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-07-28 17:54:35,835 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 120 transitions. [2020-07-28 17:54:35,835 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 120 transitions. Word has length 23 [2020-07-28 17:54:35,836 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:35,836 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 120 transitions. [2020-07-28 17:54:35,836 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 17:54:35,836 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 120 transitions. [2020-07-28 17:54:35,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 17:54:35,837 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:35,837 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:36,050 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 mathsat -unsat_core_generation=3 [2020-07-28 17:54:36,051 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:36,051 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:36,051 INFO L82 PathProgramCache]: Analyzing trace with hash 156888005, now seen corresponding path program 1 times [2020-07-28 17:54:36,052 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:36,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [428657137] [2020-07-28 17:54:36,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 8 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 8 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:36,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:36,136 INFO L263 TraceCheckSpWp]: Trace formula consists of 77 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 17:54:36,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:36,151 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:36,188 INFO L280 TraceCheckUtils]: 0: Hoare triple {3553#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {3553#true} is VALID [2020-07-28 17:54:36,188 INFO L280 TraceCheckUtils]: 1: Hoare triple {3553#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {3553#true} is VALID [2020-07-28 17:54:36,189 INFO L280 TraceCheckUtils]: 2: Hoare triple {3553#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {3553#true} is VALID [2020-07-28 17:54:36,189 INFO L280 TraceCheckUtils]: 3: Hoare triple {3553#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {3553#true} is VALID [2020-07-28 17:54:36,189 INFO L280 TraceCheckUtils]: 4: Hoare triple {3553#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {3553#true} is VALID [2020-07-28 17:54:36,190 INFO L280 TraceCheckUtils]: 5: Hoare triple {3553#true} main_#t~short15 := main_#t~short11; {3553#true} is VALID [2020-07-28 17:54:36,190 INFO L280 TraceCheckUtils]: 6: Hoare triple {3553#true} assume main_#t~short15; {3553#true} is VALID [2020-07-28 17:54:36,190 INFO L280 TraceCheckUtils]: 7: Hoare triple {3553#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {3553#true} is VALID [2020-07-28 17:54:36,190 INFO L280 TraceCheckUtils]: 8: Hoare triple {3553#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {3553#true} is VALID [2020-07-28 17:54:36,191 INFO L280 TraceCheckUtils]: 9: Hoare triple {3553#true} goto; {3553#true} is VALID [2020-07-28 17:54:36,191 INFO L280 TraceCheckUtils]: 10: Hoare triple {3553#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {3553#true} is VALID [2020-07-28 17:54:36,191 INFO L280 TraceCheckUtils]: 11: Hoare triple {3553#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {3553#true} is VALID [2020-07-28 17:54:36,191 INFO L280 TraceCheckUtils]: 12: Hoare triple {3553#true} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {3553#true} is VALID [2020-07-28 17:54:36,192 INFO L280 TraceCheckUtils]: 13: Hoare triple {3553#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {3553#true} is VALID [2020-07-28 17:54:36,192 INFO L280 TraceCheckUtils]: 14: Hoare triple {3553#true} goto; {3553#true} is VALID [2020-07-28 17:54:36,194 INFO L280 TraceCheckUtils]: 15: Hoare triple {3553#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {3603#(= (_ bv2 32) |ULTIMATE.start___fpclassify_float_#res|)} is VALID [2020-07-28 17:54:36,195 INFO L280 TraceCheckUtils]: 16: Hoare triple {3603#(= (_ bv2 32) |ULTIMATE.start___fpclassify_float_#res|)} fmin_float_#t~ret3 := __fpclassify_float_#res; {3607#(= (bvadd |ULTIMATE.start_fmin_float_#t~ret3| (_ bv4294967294 32)) (_ bv0 32))} is VALID [2020-07-28 17:54:36,211 INFO L280 TraceCheckUtils]: 17: Hoare triple {3607#(= (bvadd |ULTIMATE.start_fmin_float_#t~ret3| (_ bv4294967294 32)) (_ bv0 32))} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {3554#false} is VALID [2020-07-28 17:54:36,212 INFO L280 TraceCheckUtils]: 18: Hoare triple {3554#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {3554#false} is VALID [2020-07-28 17:54:36,212 INFO L280 TraceCheckUtils]: 19: Hoare triple {3554#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {3554#false} is VALID [2020-07-28 17:54:36,212 INFO L280 TraceCheckUtils]: 20: Hoare triple {3554#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {3554#false} is VALID [2020-07-28 17:54:36,212 INFO L280 TraceCheckUtils]: 21: Hoare triple {3554#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {3554#false} is VALID [2020-07-28 17:54:36,213 INFO L280 TraceCheckUtils]: 22: Hoare triple {3554#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {3554#false} is VALID [2020-07-28 17:54:36,213 INFO L280 TraceCheckUtils]: 23: Hoare triple {3554#false} assume !false; {3554#false} is VALID [2020-07-28 17:54:36,213 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 17:54:36,214 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:36,247 INFO L280 TraceCheckUtils]: 23: Hoare triple {3554#false} assume !false; {3554#false} is VALID [2020-07-28 17:54:36,248 INFO L280 TraceCheckUtils]: 22: Hoare triple {3554#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {3554#false} is VALID [2020-07-28 17:54:36,248 INFO L280 TraceCheckUtils]: 21: Hoare triple {3554#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {3554#false} is VALID [2020-07-28 17:54:36,248 INFO L280 TraceCheckUtils]: 20: Hoare triple {3554#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {3554#false} is VALID [2020-07-28 17:54:36,248 INFO L280 TraceCheckUtils]: 19: Hoare triple {3554#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {3554#false} is VALID [2020-07-28 17:54:36,249 INFO L280 TraceCheckUtils]: 18: Hoare triple {3554#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {3554#false} is VALID [2020-07-28 17:54:36,249 INFO L280 TraceCheckUtils]: 17: Hoare triple {3647#(not (= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32)))} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {3554#false} is VALID [2020-07-28 17:54:36,250 INFO L280 TraceCheckUtils]: 16: Hoare triple {3651#(not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))} fmin_float_#t~ret3 := __fpclassify_float_#res; {3647#(not (= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32)))} is VALID [2020-07-28 17:54:36,251 INFO L280 TraceCheckUtils]: 15: Hoare triple {3553#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {3651#(not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))} is VALID [2020-07-28 17:54:36,251 INFO L280 TraceCheckUtils]: 14: Hoare triple {3553#true} goto; {3553#true} is VALID [2020-07-28 17:54:36,251 INFO L280 TraceCheckUtils]: 13: Hoare triple {3553#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {3553#true} is VALID [2020-07-28 17:54:36,251 INFO L280 TraceCheckUtils]: 12: Hoare triple {3553#true} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {3553#true} is VALID [2020-07-28 17:54:36,251 INFO L280 TraceCheckUtils]: 11: Hoare triple {3553#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {3553#true} is VALID [2020-07-28 17:54:36,252 INFO L280 TraceCheckUtils]: 10: Hoare triple {3553#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {3553#true} is VALID [2020-07-28 17:54:36,252 INFO L280 TraceCheckUtils]: 9: Hoare triple {3553#true} goto; {3553#true} is VALID [2020-07-28 17:54:36,252 INFO L280 TraceCheckUtils]: 8: Hoare triple {3553#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {3553#true} is VALID [2020-07-28 17:54:36,252 INFO L280 TraceCheckUtils]: 7: Hoare triple {3553#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {3553#true} is VALID [2020-07-28 17:54:36,253 INFO L280 TraceCheckUtils]: 6: Hoare triple {3553#true} assume main_#t~short15; {3553#true} is VALID [2020-07-28 17:54:36,253 INFO L280 TraceCheckUtils]: 5: Hoare triple {3553#true} main_#t~short15 := main_#t~short11; {3553#true} is VALID [2020-07-28 17:54:36,253 INFO L280 TraceCheckUtils]: 4: Hoare triple {3553#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {3553#true} is VALID [2020-07-28 17:54:36,254 INFO L280 TraceCheckUtils]: 3: Hoare triple {3553#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {3553#true} is VALID [2020-07-28 17:54:36,254 INFO L280 TraceCheckUtils]: 2: Hoare triple {3553#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {3553#true} is VALID [2020-07-28 17:54:36,254 INFO L280 TraceCheckUtils]: 1: Hoare triple {3553#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {3553#true} is VALID [2020-07-28 17:54:36,254 INFO L280 TraceCheckUtils]: 0: Hoare triple {3553#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {3553#true} is VALID [2020-07-28 17:54:36,255 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 17:54:36,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [428657137] [2020-07-28 17:54:36,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:36,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 6 [2020-07-28 17:54:36,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638034401] [2020-07-28 17:54:36,256 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 17:54:36,256 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:36,256 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 17:54:36,288 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:36,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 17:54:36,289 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:36,289 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 17:54:36,290 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-28 17:54:36,290 INFO L87 Difference]: Start difference. First operand 89 states and 120 transitions. Second operand 6 states. [2020-07-28 17:54:36,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:36,828 INFO L93 Difference]: Finished difference Result 157 states and 199 transitions. [2020-07-28 17:54:36,828 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 17:54:36,828 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 24 [2020-07-28 17:54:36,829 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:36,829 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:54:36,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2020-07-28 17:54:36,830 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 17:54:36,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 116 transitions. [2020-07-28 17:54:36,832 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 116 transitions. [2020-07-28 17:54:36,990 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 116 edges. 116 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:36,993 INFO L225 Difference]: With dead ends: 157 [2020-07-28 17:54:36,994 INFO L226 Difference]: Without dead ends: 141 [2020-07-28 17:54:36,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2020-07-28 17:54:36,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 141 states. [2020-07-28 17:54:37,059 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 141 to 93. [2020-07-28 17:54:37,060 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:37,060 INFO L82 GeneralOperation]: Start isEquivalent. First operand 141 states. Second operand 93 states. [2020-07-28 17:54:37,060 INFO L74 IsIncluded]: Start isIncluded. First operand 141 states. Second operand 93 states. [2020-07-28 17:54:37,060 INFO L87 Difference]: Start difference. First operand 141 states. Second operand 93 states. [2020-07-28 17:54:37,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:37,065 INFO L93 Difference]: Finished difference Result 141 states and 178 transitions. [2020-07-28 17:54:37,065 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2020-07-28 17:54:37,066 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:37,066 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:37,066 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 141 states. [2020-07-28 17:54:37,067 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 141 states. [2020-07-28 17:54:37,071 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:37,071 INFO L93 Difference]: Finished difference Result 141 states and 178 transitions. [2020-07-28 17:54:37,072 INFO L276 IsEmpty]: Start isEmpty. Operand 141 states and 178 transitions. [2020-07-28 17:54:37,072 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:37,072 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:37,073 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:37,073 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:37,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-28 17:54:37,076 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 124 transitions. [2020-07-28 17:54:37,076 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 124 transitions. Word has length 24 [2020-07-28 17:54:37,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:37,077 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 124 transitions. [2020-07-28 17:54:37,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 17:54:37,077 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2020-07-28 17:54:37,078 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2020-07-28 17:54:37,078 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:37,078 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:37,291 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 mathsat -unsat_core_generation=3 [2020-07-28 17:54:37,292 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:37,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:37,293 INFO L82 PathProgramCache]: Analyzing trace with hash -1621213116, now seen corresponding path program 1 times [2020-07-28 17:54:37,293 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:37,294 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1062805113] [2020-07-28 17:54:37,294 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 9 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 9 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:37,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:37,361 INFO L263 TraceCheckSpWp]: Trace formula consists of 69 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-28 17:54:37,375 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:37,377 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:37,401 INFO L280 TraceCheckUtils]: 0: Hoare triple {4320#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {4320#true} is VALID [2020-07-28 17:54:37,401 INFO L280 TraceCheckUtils]: 1: Hoare triple {4320#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,402 INFO L280 TraceCheckUtils]: 2: Hoare triple {4320#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {4320#true} is VALID [2020-07-28 17:54:37,402 INFO L280 TraceCheckUtils]: 3: Hoare triple {4320#true} assume !main_#t~short11; {4320#true} is VALID [2020-07-28 17:54:37,402 INFO L280 TraceCheckUtils]: 4: Hoare triple {4320#true} main_#t~short15 := main_#t~short11; {4320#true} is VALID [2020-07-28 17:54:37,402 INFO L280 TraceCheckUtils]: 5: Hoare triple {4320#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,403 INFO L280 TraceCheckUtils]: 6: Hoare triple {4320#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {4320#true} is VALID [2020-07-28 17:54:37,403 INFO L280 TraceCheckUtils]: 7: Hoare triple {4320#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {4320#true} is VALID [2020-07-28 17:54:37,403 INFO L280 TraceCheckUtils]: 8: Hoare triple {4320#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {4320#true} is VALID [2020-07-28 17:54:37,404 INFO L280 TraceCheckUtils]: 9: Hoare triple {4320#true} main_#t~short15 := main_#t~short14; {4320#true} is VALID [2020-07-28 17:54:37,404 INFO L280 TraceCheckUtils]: 10: Hoare triple {4320#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {4320#true} is VALID [2020-07-28 17:54:37,404 INFO L280 TraceCheckUtils]: 11: Hoare triple {4320#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {4320#true} is VALID [2020-07-28 17:54:37,404 INFO L280 TraceCheckUtils]: 12: Hoare triple {4320#true} goto; {4320#true} is VALID [2020-07-28 17:54:37,405 INFO L280 TraceCheckUtils]: 13: Hoare triple {4320#true} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {4320#true} is VALID [2020-07-28 17:54:37,405 INFO L280 TraceCheckUtils]: 14: Hoare triple {4320#true} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {4320#true} is VALID [2020-07-28 17:54:37,405 INFO L280 TraceCheckUtils]: 15: Hoare triple {4320#true} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {4320#true} is VALID [2020-07-28 17:54:37,405 INFO L280 TraceCheckUtils]: 16: Hoare triple {4320#true} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {4320#true} is VALID [2020-07-28 17:54:37,406 INFO L280 TraceCheckUtils]: 17: Hoare triple {4320#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {4320#true} is VALID [2020-07-28 17:54:37,406 INFO L280 TraceCheckUtils]: 18: Hoare triple {4320#true} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {4320#true} is VALID [2020-07-28 17:54:37,406 INFO L280 TraceCheckUtils]: 19: Hoare triple {4320#true} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,406 INFO L280 TraceCheckUtils]: 20: Hoare triple {4320#true} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {4320#true} is VALID [2020-07-28 17:54:37,407 INFO L280 TraceCheckUtils]: 21: Hoare triple {4320#true} assume !main_#t~short19; {4388#(not |ULTIMATE.start_main_#t~short19|)} is VALID [2020-07-28 17:54:37,408 INFO L280 TraceCheckUtils]: 22: Hoare triple {4388#(not |ULTIMATE.start_main_#t~short19|)} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {4321#false} is VALID [2020-07-28 17:54:37,408 INFO L280 TraceCheckUtils]: 23: Hoare triple {4321#false} assume !false; {4321#false} is VALID [2020-07-28 17:54:37,409 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 17:54:37,409 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:37,427 INFO L280 TraceCheckUtils]: 23: Hoare triple {4321#false} assume !false; {4321#false} is VALID [2020-07-28 17:54:37,428 INFO L280 TraceCheckUtils]: 22: Hoare triple {4388#(not |ULTIMATE.start_main_#t~short19|)} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {4321#false} is VALID [2020-07-28 17:54:37,428 INFO L280 TraceCheckUtils]: 21: Hoare triple {4320#true} assume !main_#t~short19; {4388#(not |ULTIMATE.start_main_#t~short19|)} is VALID [2020-07-28 17:54:37,428 INFO L280 TraceCheckUtils]: 20: Hoare triple {4320#true} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {4320#true} is VALID [2020-07-28 17:54:37,429 INFO L280 TraceCheckUtils]: 19: Hoare triple {4320#true} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,429 INFO L280 TraceCheckUtils]: 18: Hoare triple {4320#true} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {4320#true} is VALID [2020-07-28 17:54:37,429 INFO L280 TraceCheckUtils]: 17: Hoare triple {4320#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {4320#true} is VALID [2020-07-28 17:54:37,429 INFO L280 TraceCheckUtils]: 16: Hoare triple {4320#true} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {4320#true} is VALID [2020-07-28 17:54:37,429 INFO L280 TraceCheckUtils]: 15: Hoare triple {4320#true} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {4320#true} is VALID [2020-07-28 17:54:37,430 INFO L280 TraceCheckUtils]: 14: Hoare triple {4320#true} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {4320#true} is VALID [2020-07-28 17:54:37,430 INFO L280 TraceCheckUtils]: 13: Hoare triple {4320#true} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {4320#true} is VALID [2020-07-28 17:54:37,430 INFO L280 TraceCheckUtils]: 12: Hoare triple {4320#true} goto; {4320#true} is VALID [2020-07-28 17:54:37,430 INFO L280 TraceCheckUtils]: 11: Hoare triple {4320#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {4320#true} is VALID [2020-07-28 17:54:37,431 INFO L280 TraceCheckUtils]: 10: Hoare triple {4320#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {4320#true} is VALID [2020-07-28 17:54:37,431 INFO L280 TraceCheckUtils]: 9: Hoare triple {4320#true} main_#t~short15 := main_#t~short14; {4320#true} is VALID [2020-07-28 17:54:37,431 INFO L280 TraceCheckUtils]: 8: Hoare triple {4320#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {4320#true} is VALID [2020-07-28 17:54:37,431 INFO L280 TraceCheckUtils]: 7: Hoare triple {4320#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {4320#true} is VALID [2020-07-28 17:54:37,432 INFO L280 TraceCheckUtils]: 6: Hoare triple {4320#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {4320#true} is VALID [2020-07-28 17:54:37,432 INFO L280 TraceCheckUtils]: 5: Hoare triple {4320#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,432 INFO L280 TraceCheckUtils]: 4: Hoare triple {4320#true} main_#t~short15 := main_#t~short11; {4320#true} is VALID [2020-07-28 17:54:37,432 INFO L280 TraceCheckUtils]: 3: Hoare triple {4320#true} assume !main_#t~short11; {4320#true} is VALID [2020-07-28 17:54:37,433 INFO L280 TraceCheckUtils]: 2: Hoare triple {4320#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {4320#true} is VALID [2020-07-28 17:54:37,433 INFO L280 TraceCheckUtils]: 1: Hoare triple {4320#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {4320#true} is VALID [2020-07-28 17:54:37,433 INFO L280 TraceCheckUtils]: 0: Hoare triple {4320#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {4320#true} is VALID [2020-07-28 17:54:37,434 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 17:54:37,434 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1062805113] [2020-07-28 17:54:37,434 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:37,435 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 3 [2020-07-28 17:54:37,435 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1673951098] [2020-07-28 17:54:37,435 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 17:54:37,436 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:37,436 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 17:54:37,466 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 24 edges. 24 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:37,467 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 17:54:37,467 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:37,467 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 17:54:37,467 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:54:37,467 INFO L87 Difference]: Start difference. First operand 93 states and 124 transitions. Second operand 3 states. [2020-07-28 17:54:37,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:37,658 INFO L93 Difference]: Finished difference Result 96 states and 127 transitions. [2020-07-28 17:54:37,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 17:54:37,658 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 24 [2020-07-28 17:54:37,658 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:37,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:54:37,659 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2020-07-28 17:54:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 17:54:37,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 61 transitions. [2020-07-28 17:54:37,661 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 61 transitions. [2020-07-28 17:54:37,731 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:37,733 INFO L225 Difference]: With dead ends: 96 [2020-07-28 17:54:37,734 INFO L226 Difference]: Without dead ends: 94 [2020-07-28 17:54:37,734 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 45 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 17:54:37,735 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2020-07-28 17:54:37,801 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 93. [2020-07-28 17:54:37,801 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:37,802 INFO L82 GeneralOperation]: Start isEquivalent. First operand 94 states. Second operand 93 states. [2020-07-28 17:54:37,802 INFO L74 IsIncluded]: Start isIncluded. First operand 94 states. Second operand 93 states. [2020-07-28 17:54:37,802 INFO L87 Difference]: Start difference. First operand 94 states. Second operand 93 states. [2020-07-28 17:54:37,807 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:37,807 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2020-07-28 17:54:37,808 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 125 transitions. [2020-07-28 17:54:37,808 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:37,808 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:37,808 INFO L74 IsIncluded]: Start isIncluded. First operand 93 states. Second operand 94 states. [2020-07-28 17:54:37,808 INFO L87 Difference]: Start difference. First operand 93 states. Second operand 94 states. [2020-07-28 17:54:37,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:37,812 INFO L93 Difference]: Finished difference Result 94 states and 125 transitions. [2020-07-28 17:54:37,813 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 125 transitions. [2020-07-28 17:54:37,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:37,813 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:37,813 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:37,814 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:37,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 93 states. [2020-07-28 17:54:37,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93 states to 93 states and 124 transitions. [2020-07-28 17:54:37,817 INFO L78 Accepts]: Start accepts. Automaton has 93 states and 124 transitions. Word has length 24 [2020-07-28 17:54:37,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:37,817 INFO L479 AbstractCegarLoop]: Abstraction has 93 states and 124 transitions. [2020-07-28 17:54:37,818 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 17:54:37,818 INFO L276 IsEmpty]: Start isEmpty. Operand 93 states and 124 transitions. [2020-07-28 17:54:37,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 17:54:37,820 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:37,821 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:38,035 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 mathsat -unsat_core_generation=3 [2020-07-28 17:54:38,036 INFO L427 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:38,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:38,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1741974657, now seen corresponding path program 1 times [2020-07-28 17:54:38,037 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:38,037 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1049223581] [2020-07-28 17:54:38,038 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 10 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 10 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:38,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:38,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:38,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:38,119 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:38,153 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:38,154 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:38,206 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:38,231 INFO L280 TraceCheckUtils]: 0: Hoare triple {4900#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {4900#true} is VALID [2020-07-28 17:54:38,233 INFO L280 TraceCheckUtils]: 1: Hoare triple {4900#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {4908#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:38,235 INFO L280 TraceCheckUtils]: 2: Hoare triple {4908#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {4912#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:38,236 INFO L280 TraceCheckUtils]: 3: Hoare triple {4912#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,236 INFO L280 TraceCheckUtils]: 4: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,236 INFO L280 TraceCheckUtils]: 5: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,237 INFO L280 TraceCheckUtils]: 6: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,237 INFO L280 TraceCheckUtils]: 7: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,238 INFO L280 TraceCheckUtils]: 8: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,238 INFO L280 TraceCheckUtils]: 9: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} goto; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,238 INFO L280 TraceCheckUtils]: 10: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,239 INFO L280 TraceCheckUtils]: 11: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,239 INFO L280 TraceCheckUtils]: 12: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,240 INFO L280 TraceCheckUtils]: 13: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,240 INFO L280 TraceCheckUtils]: 14: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,240 INFO L280 TraceCheckUtils]: 15: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,245 INFO L280 TraceCheckUtils]: 16: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,248 INFO L280 TraceCheckUtils]: 17: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,252 INFO L280 TraceCheckUtils]: 18: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,253 INFO L280 TraceCheckUtils]: 19: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,254 INFO L280 TraceCheckUtils]: 20: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {4968#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:38,254 INFO L280 TraceCheckUtils]: 21: Hoare triple {4968#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {4972#(not |ULTIMATE.start_main_#t~short22|)} is VALID [2020-07-28 17:54:38,255 INFO L280 TraceCheckUtils]: 22: Hoare triple {4972#(not |ULTIMATE.start_main_#t~short22|)} assume !main_#t~short22; {4972#(not |ULTIMATE.start_main_#t~short22|)} is VALID [2020-07-28 17:54:38,265 INFO L280 TraceCheckUtils]: 23: Hoare triple {4972#(not |ULTIMATE.start_main_#t~short22|)} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {4901#false} is VALID [2020-07-28 17:54:38,265 INFO L280 TraceCheckUtils]: 24: Hoare triple {4901#false} assume !false; {4901#false} is VALID [2020-07-28 17:54:38,266 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 17:54:38,267 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:38,375 INFO L280 TraceCheckUtils]: 24: Hoare triple {4901#false} assume !false; {4901#false} is VALID [2020-07-28 17:54:38,375 INFO L280 TraceCheckUtils]: 23: Hoare triple {4972#(not |ULTIMATE.start_main_#t~short22|)} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {4901#false} is VALID [2020-07-28 17:54:38,376 INFO L280 TraceCheckUtils]: 22: Hoare triple {4972#(not |ULTIMATE.start_main_#t~short22|)} assume !main_#t~short22; {4972#(not |ULTIMATE.start_main_#t~short22|)} is VALID [2020-07-28 17:54:38,377 INFO L280 TraceCheckUtils]: 21: Hoare triple {4991#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {4972#(not |ULTIMATE.start_main_#t~short22|)} is VALID [2020-07-28 17:54:38,378 INFO L280 TraceCheckUtils]: 20: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {4991#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:38,378 INFO L280 TraceCheckUtils]: 19: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,379 INFO L280 TraceCheckUtils]: 18: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,379 INFO L280 TraceCheckUtils]: 17: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,380 INFO L280 TraceCheckUtils]: 16: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,381 INFO L280 TraceCheckUtils]: 15: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,381 INFO L280 TraceCheckUtils]: 14: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,382 INFO L280 TraceCheckUtils]: 13: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,383 INFO L280 TraceCheckUtils]: 12: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,383 INFO L280 TraceCheckUtils]: 11: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,384 INFO L280 TraceCheckUtils]: 10: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,385 INFO L280 TraceCheckUtils]: 9: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} goto; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,385 INFO L280 TraceCheckUtils]: 8: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,386 INFO L280 TraceCheckUtils]: 7: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,386 INFO L280 TraceCheckUtils]: 6: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,387 INFO L280 TraceCheckUtils]: 5: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,387 INFO L280 TraceCheckUtils]: 4: Hoare triple {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,388 INFO L280 TraceCheckUtils]: 3: Hoare triple {5046#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {4916#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:38,389 INFO L280 TraceCheckUtils]: 2: Hoare triple {5050#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {5046#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} is VALID [2020-07-28 17:54:38,390 INFO L280 TraceCheckUtils]: 1: Hoare triple {4900#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {5050#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:38,390 INFO L280 TraceCheckUtils]: 0: Hoare triple {4900#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {4900#true} is VALID [2020-07-28 17:54:38,391 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 17:54:38,391 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1049223581] [2020-07-28 17:54:38,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:38,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 10 [2020-07-28 17:54:38,392 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [800172371] [2020-07-28 17:54:38,392 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-07-28 17:54:38,392 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:38,392 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:54:38,436 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:38,436 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:54:38,436 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:38,436 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:54:38,437 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:54:38,437 INFO L87 Difference]: Start difference. First operand 93 states and 124 transitions. Second operand 10 states. [2020-07-28 17:54:40,189 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:40,190 INFO L93 Difference]: Finished difference Result 131 states and 173 transitions. [2020-07-28 17:54:40,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 17:54:40,190 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 25 [2020-07-28 17:54:40,191 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:40,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:40,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 142 transitions. [2020-07-28 17:54:40,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:40,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 142 transitions. [2020-07-28 17:54:40,195 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 142 transitions. [2020-07-28 17:54:40,442 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 142 edges. 142 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:40,445 INFO L225 Difference]: With dead ends: 131 [2020-07-28 17:54:40,445 INFO L226 Difference]: Without dead ends: 118 [2020-07-28 17:54:40,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=152, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:54:40,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118 states. [2020-07-28 17:54:40,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118 to 89. [2020-07-28 17:54:40,505 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:40,505 INFO L82 GeneralOperation]: Start isEquivalent. First operand 118 states. Second operand 89 states. [2020-07-28 17:54:40,505 INFO L74 IsIncluded]: Start isIncluded. First operand 118 states. Second operand 89 states. [2020-07-28 17:54:40,505 INFO L87 Difference]: Start difference. First operand 118 states. Second operand 89 states. [2020-07-28 17:54:40,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:40,510 INFO L93 Difference]: Finished difference Result 118 states and 157 transitions. [2020-07-28 17:54:40,510 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2020-07-28 17:54:40,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:40,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:40,511 INFO L74 IsIncluded]: Start isIncluded. First operand 89 states. Second operand 118 states. [2020-07-28 17:54:40,511 INFO L87 Difference]: Start difference. First operand 89 states. Second operand 118 states. [2020-07-28 17:54:40,514 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:40,515 INFO L93 Difference]: Finished difference Result 118 states and 157 transitions. [2020-07-28 17:54:40,515 INFO L276 IsEmpty]: Start isEmpty. Operand 118 states and 157 transitions. [2020-07-28 17:54:40,515 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:40,515 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:40,515 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:40,516 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:40,516 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 89 states. [2020-07-28 17:54:40,519 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 118 transitions. [2020-07-28 17:54:40,519 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 118 transitions. Word has length 25 [2020-07-28 17:54:40,519 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:40,519 INFO L479 AbstractCegarLoop]: Abstraction has 89 states and 118 transitions. [2020-07-28 17:54:40,519 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:54:40,519 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 118 transitions. [2020-07-28 17:54:40,520 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 17:54:40,520 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:40,520 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:40,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 mathsat -unsat_core_generation=3 [2020-07-28 17:54:40,724 INFO L427 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:40,724 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:40,725 INFO L82 PathProgramCache]: Analyzing trace with hash 839729769, now seen corresponding path program 1 times [2020-07-28 17:54:40,726 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:40,726 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [93535778] [2020-07-28 17:54:40,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 11 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 11 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:40,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:40,779 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 13 conjunts are in the unsatisfiable core [2020-07-28 17:54:40,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:40,797 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:40,826 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:40,847 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:40,889 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:40,933 INFO L280 TraceCheckUtils]: 0: Hoare triple {5589#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {5589#true} is VALID [2020-07-28 17:54:40,935 INFO L280 TraceCheckUtils]: 1: Hoare triple {5589#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {5597#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:40,936 INFO L280 TraceCheckUtils]: 2: Hoare triple {5597#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {5601#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:40,938 INFO L280 TraceCheckUtils]: 3: Hoare triple {5601#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:40,939 INFO L280 TraceCheckUtils]: 4: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:40,941 INFO L280 TraceCheckUtils]: 5: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:40,942 INFO L280 TraceCheckUtils]: 6: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {5615#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:40,943 INFO L280 TraceCheckUtils]: 7: Hoare triple {5615#(= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {5619#(not |ULTIMATE.start_main_#t~short14|)} is VALID [2020-07-28 17:54:40,943 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#(not |ULTIMATE.start_main_#t~short14|)} assume !main_#t~short14; {5619#(not |ULTIMATE.start_main_#t~short14|)} is VALID [2020-07-28 17:54:40,944 INFO L280 TraceCheckUtils]: 9: Hoare triple {5619#(not |ULTIMATE.start_main_#t~short14|)} main_#t~short15 := main_#t~short14; {5626#(not |ULTIMATE.start_main_#t~short15|)} is VALID [2020-07-28 17:54:40,944 INFO L280 TraceCheckUtils]: 10: Hoare triple {5626#(not |ULTIMATE.start_main_#t~short15|)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {5590#false} is VALID [2020-07-28 17:54:40,944 INFO L280 TraceCheckUtils]: 11: Hoare triple {5590#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {5590#false} is VALID [2020-07-28 17:54:40,944 INFO L280 TraceCheckUtils]: 12: Hoare triple {5590#false} goto; {5590#false} is VALID [2020-07-28 17:54:40,945 INFO L280 TraceCheckUtils]: 13: Hoare triple {5590#false} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {5590#false} is VALID [2020-07-28 17:54:40,945 INFO L280 TraceCheckUtils]: 14: Hoare triple {5590#false} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {5590#false} is VALID [2020-07-28 17:54:40,945 INFO L280 TraceCheckUtils]: 15: Hoare triple {5590#false} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {5590#false} is VALID [2020-07-28 17:54:40,945 INFO L280 TraceCheckUtils]: 16: Hoare triple {5590#false} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {5590#false} is VALID [2020-07-28 17:54:40,946 INFO L280 TraceCheckUtils]: 17: Hoare triple {5590#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {5590#false} is VALID [2020-07-28 17:54:40,946 INFO L280 TraceCheckUtils]: 18: Hoare triple {5590#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {5590#false} is VALID [2020-07-28 17:54:40,946 INFO L280 TraceCheckUtils]: 19: Hoare triple {5590#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {5590#false} is VALID [2020-07-28 17:54:40,946 INFO L280 TraceCheckUtils]: 20: Hoare triple {5590#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {5590#false} is VALID [2020-07-28 17:54:40,947 INFO L280 TraceCheckUtils]: 21: Hoare triple {5590#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {5590#false} is VALID [2020-07-28 17:54:40,947 INFO L280 TraceCheckUtils]: 22: Hoare triple {5590#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {5590#false} is VALID [2020-07-28 17:54:40,947 INFO L280 TraceCheckUtils]: 23: Hoare triple {5590#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {5590#false} is VALID [2020-07-28 17:54:40,947 INFO L280 TraceCheckUtils]: 24: Hoare triple {5590#false} assume !false; {5590#false} is VALID [2020-07-28 17:54:40,948 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 17:54:40,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:41,054 INFO L280 TraceCheckUtils]: 24: Hoare triple {5590#false} assume !false; {5590#false} is VALID [2020-07-28 17:54:41,054 INFO L280 TraceCheckUtils]: 23: Hoare triple {5590#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {5590#false} is VALID [2020-07-28 17:54:41,054 INFO L280 TraceCheckUtils]: 22: Hoare triple {5590#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {5590#false} is VALID [2020-07-28 17:54:41,054 INFO L280 TraceCheckUtils]: 21: Hoare triple {5590#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {5590#false} is VALID [2020-07-28 17:54:41,054 INFO L280 TraceCheckUtils]: 20: Hoare triple {5590#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 19: Hoare triple {5590#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 18: Hoare triple {5590#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 17: Hoare triple {5590#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 16: Hoare triple {5590#false} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 15: Hoare triple {5590#false} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {5590#false} is VALID [2020-07-28 17:54:41,055 INFO L280 TraceCheckUtils]: 14: Hoare triple {5590#false} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {5590#false} is VALID [2020-07-28 17:54:41,056 INFO L280 TraceCheckUtils]: 13: Hoare triple {5590#false} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {5590#false} is VALID [2020-07-28 17:54:41,056 INFO L280 TraceCheckUtils]: 12: Hoare triple {5590#false} goto; {5590#false} is VALID [2020-07-28 17:54:41,056 INFO L280 TraceCheckUtils]: 11: Hoare triple {5590#false} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {5590#false} is VALID [2020-07-28 17:54:41,057 INFO L280 TraceCheckUtils]: 10: Hoare triple {5626#(not |ULTIMATE.start_main_#t~short15|)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {5590#false} is VALID [2020-07-28 17:54:41,058 INFO L280 TraceCheckUtils]: 9: Hoare triple {5619#(not |ULTIMATE.start_main_#t~short14|)} main_#t~short15 := main_#t~short14; {5626#(not |ULTIMATE.start_main_#t~short15|)} is VALID [2020-07-28 17:54:41,058 INFO L280 TraceCheckUtils]: 8: Hoare triple {5619#(not |ULTIMATE.start_main_#t~short14|)} assume !main_#t~short14; {5619#(not |ULTIMATE.start_main_#t~short14|)} is VALID [2020-07-28 17:54:41,059 INFO L280 TraceCheckUtils]: 7: Hoare triple {5723#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {5619#(not |ULTIMATE.start_main_#t~short14|)} is VALID [2020-07-28 17:54:41,060 INFO L280 TraceCheckUtils]: 6: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {5723#(not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:41,060 INFO L280 TraceCheckUtils]: 5: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:41,061 INFO L280 TraceCheckUtils]: 4: Hoare triple {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:41,062 INFO L280 TraceCheckUtils]: 3: Hoare triple {5736#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {5605#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:41,062 INFO L280 TraceCheckUtils]: 2: Hoare triple {5740#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {5736#(or (not |ULTIMATE.start_main_#t~short11|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))} is VALID [2020-07-28 17:54:41,063 INFO L280 TraceCheckUtils]: 1: Hoare triple {5589#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {5740#(or (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:41,063 INFO L280 TraceCheckUtils]: 0: Hoare triple {5589#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {5589#true} is VALID [2020-07-28 17:54:41,064 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 17:54:41,064 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [93535778] [2020-07-28 17:54:41,064 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:41,064 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 11 [2020-07-28 17:54:41,064 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [227563476] [2020-07-28 17:54:41,065 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-07-28 17:54:41,065 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:41,065 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states. [2020-07-28 17:54:41,100 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:41,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-07-28 17:54:41,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:41,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-07-28 17:54:41,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=86, Unknown=0, NotChecked=0, Total=110 [2020-07-28 17:54:41,101 INFO L87 Difference]: Start difference. First operand 89 states and 118 transitions. Second operand 11 states. [2020-07-28 17:54:42,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:42,461 INFO L93 Difference]: Finished difference Result 114 states and 147 transitions. [2020-07-28 17:54:42,461 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 17:54:42,461 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 25 [2020-07-28 17:54:42,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:42,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-28 17:54:42,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 137 transitions. [2020-07-28 17:54:42,463 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-07-28 17:54:42,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 137 transitions. [2020-07-28 17:54:42,464 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 137 transitions. [2020-07-28 17:54:42,647 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 137 edges. 137 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:42,649 INFO L225 Difference]: With dead ends: 114 [2020-07-28 17:54:42,649 INFO L226 Difference]: Without dead ends: 78 [2020-07-28 17:54:42,650 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 55 GetRequests, 39 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=80, Invalid=226, Unknown=0, NotChecked=0, Total=306 [2020-07-28 17:54:42,651 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 78 states. [2020-07-28 17:54:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 78 to 76. [2020-07-28 17:54:42,701 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:42,701 INFO L82 GeneralOperation]: Start isEquivalent. First operand 78 states. Second operand 76 states. [2020-07-28 17:54:42,701 INFO L74 IsIncluded]: Start isIncluded. First operand 78 states. Second operand 76 states. [2020-07-28 17:54:42,701 INFO L87 Difference]: Start difference. First operand 78 states. Second operand 76 states. [2020-07-28 17:54:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:42,703 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2020-07-28 17:54:42,703 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2020-07-28 17:54:42,703 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:42,704 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:42,704 INFO L74 IsIncluded]: Start isIncluded. First operand 76 states. Second operand 78 states. [2020-07-28 17:54:42,704 INFO L87 Difference]: Start difference. First operand 76 states. Second operand 78 states. [2020-07-28 17:54:42,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:42,706 INFO L93 Difference]: Finished difference Result 78 states and 99 transitions. [2020-07-28 17:54:42,706 INFO L276 IsEmpty]: Start isEmpty. Operand 78 states and 99 transitions. [2020-07-28 17:54:42,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:42,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:42,706 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:42,706 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 76 states. [2020-07-28 17:54:42,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 98 transitions. [2020-07-28 17:54:42,708 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 98 transitions. Word has length 25 [2020-07-28 17:54:42,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:42,708 INFO L479 AbstractCegarLoop]: Abstraction has 76 states and 98 transitions. [2020-07-28 17:54:42,708 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-07-28 17:54:42,708 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 98 transitions. [2020-07-28 17:54:42,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2020-07-28 17:54:42,709 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:42,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:42,919 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 mathsat -unsat_core_generation=3 [2020-07-28 17:54:42,921 INFO L427 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:42,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:42,922 INFO L82 PathProgramCache]: Analyzing trace with hash 1281876129, now seen corresponding path program 1 times [2020-07-28 17:54:42,922 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:42,923 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1292244204] [2020-07-28 17:54:42,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 12 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 12 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:42,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:42,975 INFO L263 TraceCheckSpWp]: Trace formula consists of 74 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:42,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:42,986 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:43,008 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:43,009 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:43,056 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:43,081 INFO L280 TraceCheckUtils]: 0: Hoare triple {6163#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {6163#true} is VALID [2020-07-28 17:54:43,083 INFO L280 TraceCheckUtils]: 1: Hoare triple {6163#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {6171#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:43,084 INFO L280 TraceCheckUtils]: 2: Hoare triple {6171#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {6175#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:43,084 INFO L280 TraceCheckUtils]: 3: Hoare triple {6175#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume !main_#t~short11; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,085 INFO L280 TraceCheckUtils]: 4: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,085 INFO L280 TraceCheckUtils]: 5: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,085 INFO L280 TraceCheckUtils]: 6: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,086 INFO L280 TraceCheckUtils]: 7: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,086 INFO L280 TraceCheckUtils]: 8: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,087 INFO L280 TraceCheckUtils]: 9: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short14; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,088 INFO L280 TraceCheckUtils]: 10: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,088 INFO L280 TraceCheckUtils]: 11: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,089 INFO L280 TraceCheckUtils]: 12: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} goto; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,090 INFO L280 TraceCheckUtils]: 13: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,090 INFO L280 TraceCheckUtils]: 14: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,091 INFO L280 TraceCheckUtils]: 15: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,091 INFO L280 TraceCheckUtils]: 16: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,091 INFO L280 TraceCheckUtils]: 17: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} fmin_float_#t~ret2 := __fpclassify_float_#res; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,092 INFO L280 TraceCheckUtils]: 18: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,092 INFO L280 TraceCheckUtils]: 19: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {6228#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:43,093 INFO L280 TraceCheckUtils]: 20: Hoare triple {6228#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {6232#(not |ULTIMATE.start_main_#t~short19|)} is VALID [2020-07-28 17:54:43,093 INFO L280 TraceCheckUtils]: 21: Hoare triple {6232#(not |ULTIMATE.start_main_#t~short19|)} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {6164#false} is VALID [2020-07-28 17:54:43,093 INFO L280 TraceCheckUtils]: 22: Hoare triple {6164#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {6164#false} is VALID [2020-07-28 17:54:43,093 INFO L280 TraceCheckUtils]: 23: Hoare triple {6164#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {6164#false} is VALID [2020-07-28 17:54:43,094 INFO L280 TraceCheckUtils]: 24: Hoare triple {6164#false} assume !false; {6164#false} is VALID [2020-07-28 17:54:43,094 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 17:54:43,094 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:43,124 INFO L342 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-28 17:54:43,124 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:54:43,188 INFO L280 TraceCheckUtils]: 24: Hoare triple {6164#false} assume !false; {6164#false} is VALID [2020-07-28 17:54:43,189 INFO L280 TraceCheckUtils]: 23: Hoare triple {6164#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {6164#false} is VALID [2020-07-28 17:54:43,189 INFO L280 TraceCheckUtils]: 22: Hoare triple {6164#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {6164#false} is VALID [2020-07-28 17:54:43,189 INFO L280 TraceCheckUtils]: 21: Hoare triple {6232#(not |ULTIMATE.start_main_#t~short19|)} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {6164#false} is VALID [2020-07-28 17:54:43,190 INFO L280 TraceCheckUtils]: 20: Hoare triple {6228#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {6232#(not |ULTIMATE.start_main_#t~short19|)} is VALID [2020-07-28 17:54:43,190 INFO L280 TraceCheckUtils]: 19: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {6228#(= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)} is VALID [2020-07-28 17:54:43,191 INFO L280 TraceCheckUtils]: 18: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,191 INFO L280 TraceCheckUtils]: 17: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} fmin_float_#t~ret2 := __fpclassify_float_#res; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,192 INFO L280 TraceCheckUtils]: 16: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,192 INFO L280 TraceCheckUtils]: 15: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,192 INFO L280 TraceCheckUtils]: 14: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,193 INFO L280 TraceCheckUtils]: 13: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,193 INFO L280 TraceCheckUtils]: 12: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} goto; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,194 INFO L280 TraceCheckUtils]: 11: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,194 INFO L280 TraceCheckUtils]: 10: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,194 INFO L280 TraceCheckUtils]: 9: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short14; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,195 INFO L280 TraceCheckUtils]: 8: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,195 INFO L280 TraceCheckUtils]: 7: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,196 INFO L280 TraceCheckUtils]: 6: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,202 INFO L280 TraceCheckUtils]: 5: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,202 INFO L280 TraceCheckUtils]: 4: Hoare triple {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,203 INFO L280 TraceCheckUtils]: 3: Hoare triple {6308#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} assume !main_#t~short11; {6179#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:54:43,203 INFO L280 TraceCheckUtils]: 2: Hoare triple {6312#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {6308#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:54:43,204 INFO L280 TraceCheckUtils]: 1: Hoare triple {6163#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {6312#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:43,204 INFO L280 TraceCheckUtils]: 0: Hoare triple {6163#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {6163#true} is VALID [2020-07-28 17:54:43,205 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 17:54:43,206 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1292244204] [2020-07-28 17:54:43,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:43,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 9 [2020-07-28 17:54:43,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1822259584] [2020-07-28 17:54:43,207 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-07-28 17:54:43,207 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:43,207 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states. [2020-07-28 17:54:43,245 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:43,246 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-28 17:54:43,246 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:43,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-28 17:54:43,247 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=53, Unknown=0, NotChecked=0, Total=72 [2020-07-28 17:54:43,247 INFO L87 Difference]: Start difference. First operand 76 states and 98 transitions. Second operand 9 states. [2020-07-28 17:54:44,397 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:44,397 INFO L93 Difference]: Finished difference Result 84 states and 104 transitions. [2020-07-28 17:54:44,397 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-28 17:54:44,397 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 25 [2020-07-28 17:54:44,398 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:44,398 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:54:44,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 98 transitions. [2020-07-28 17:54:44,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2020-07-28 17:54:44,400 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 98 transitions. [2020-07-28 17:54:44,401 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states and 98 transitions. [2020-07-28 17:54:44,543 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 98 edges. 98 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:44,545 INFO L225 Difference]: With dead ends: 84 [2020-07-28 17:54:44,545 INFO L226 Difference]: Without dead ends: 74 [2020-07-28 17:54:44,546 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-07-28 17:54:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-28 17:54:44,593 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-28 17:54:44,593 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:44,593 INFO L82 GeneralOperation]: Start isEquivalent. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:44,593 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:44,593 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:44,595 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:44,595 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-07-28 17:54:44,595 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2020-07-28 17:54:44,596 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:44,596 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:44,596 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:44,596 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:44,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:44,597 INFO L93 Difference]: Finished difference Result 74 states and 94 transitions. [2020-07-28 17:54:44,597 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2020-07-28 17:54:44,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:44,598 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:44,598 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:44,598 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:44,598 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-28 17:54:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 94 transitions. [2020-07-28 17:54:44,599 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 94 transitions. Word has length 25 [2020-07-28 17:54:44,599 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:44,599 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 94 transitions. [2020-07-28 17:54:44,599 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-28 17:54:44,600 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 94 transitions. [2020-07-28 17:54:44,600 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 17:54:44,600 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:44,600 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:44,809 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 mathsat -unsat_core_generation=3 [2020-07-28 17:54:44,810 INFO L427 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:44,810 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:44,811 INFO L82 PathProgramCache]: Analyzing trace with hash -144403189, now seen corresponding path program 1 times [2020-07-28 17:54:44,812 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:44,812 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2039565338] [2020-07-28 17:54:44,812 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 13 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 13 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:44,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:44,891 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 9 conjunts are in the unsatisfiable core [2020-07-28 17:54:44,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:44,909 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:44,932 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:44,933 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:44,991 INFO L280 TraceCheckUtils]: 0: Hoare triple {6681#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {6681#true} is VALID [2020-07-28 17:54:44,993 INFO L280 TraceCheckUtils]: 1: Hoare triple {6681#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {6689#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:54:44,994 INFO L280 TraceCheckUtils]: 2: Hoare triple {6689#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {6693#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:54:44,994 INFO L280 TraceCheckUtils]: 3: Hoare triple {6693#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:44,995 INFO L280 TraceCheckUtils]: 4: Hoare triple {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:44,995 INFO L280 TraceCheckUtils]: 5: Hoare triple {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} main_#t~short15 := main_#t~short11; {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:44,996 INFO L280 TraceCheckUtils]: 6: Hoare triple {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15; {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:54:44,996 INFO L280 TraceCheckUtils]: 7: Hoare triple {6697#(not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,996 INFO L280 TraceCheckUtils]: 8: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,997 INFO L280 TraceCheckUtils]: 9: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} goto; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,997 INFO L280 TraceCheckUtils]: 10: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,998 INFO L280 TraceCheckUtils]: 11: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} fmin_float_#t~ret2 := __fpclassify_float_#res; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,998 INFO L280 TraceCheckUtils]: 12: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,998 INFO L280 TraceCheckUtils]: 13: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,999 INFO L280 TraceCheckUtils]: 14: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} goto; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:44,999 INFO L280 TraceCheckUtils]: 15: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:45,000 INFO L280 TraceCheckUtils]: 16: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} fmin_float_#t~ret3 := __fpclassify_float_#res; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:45,001 INFO L280 TraceCheckUtils]: 17: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:54:45,002 INFO L280 TraceCheckUtils]: 18: Hoare triple {6710#(not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x))} assume ~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~x; {6682#false} is VALID [2020-07-28 17:54:45,003 INFO L280 TraceCheckUtils]: 19: Hoare triple {6682#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {6682#false} is VALID [2020-07-28 17:54:45,003 INFO L280 TraceCheckUtils]: 20: Hoare triple {6682#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {6682#false} is VALID [2020-07-28 17:54:45,003 INFO L280 TraceCheckUtils]: 21: Hoare triple {6682#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {6682#false} is VALID [2020-07-28 17:54:45,003 INFO L280 TraceCheckUtils]: 22: Hoare triple {6682#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {6682#false} is VALID [2020-07-28 17:54:45,004 INFO L280 TraceCheckUtils]: 23: Hoare triple {6682#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {6682#false} is VALID [2020-07-28 17:54:45,004 INFO L280 TraceCheckUtils]: 24: Hoare triple {6682#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {6682#false} is VALID [2020-07-28 17:54:45,004 INFO L280 TraceCheckUtils]: 25: Hoare triple {6682#false} assume !false; {6682#false} is VALID [2020-07-28 17:54:45,005 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 17:54:45,005 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:45,517 INFO L280 TraceCheckUtils]: 25: Hoare triple {6682#false} assume !false; {6682#false} is VALID [2020-07-28 17:54:45,517 INFO L280 TraceCheckUtils]: 24: Hoare triple {6682#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {6682#false} is VALID [2020-07-28 17:54:45,517 INFO L280 TraceCheckUtils]: 23: Hoare triple {6682#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {6682#false} is VALID [2020-07-28 17:54:45,518 INFO L280 TraceCheckUtils]: 22: Hoare triple {6682#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {6682#false} is VALID [2020-07-28 17:54:45,518 INFO L280 TraceCheckUtils]: 21: Hoare triple {6682#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {6682#false} is VALID [2020-07-28 17:54:45,518 INFO L280 TraceCheckUtils]: 20: Hoare triple {6682#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {6682#false} is VALID [2020-07-28 17:54:45,518 INFO L280 TraceCheckUtils]: 19: Hoare triple {6682#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {6682#false} is VALID [2020-07-28 17:54:45,545 INFO L280 TraceCheckUtils]: 18: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume ~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~x; {6682#false} is VALID [2020-07-28 17:54:45,546 INFO L280 TraceCheckUtils]: 17: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,547 INFO L280 TraceCheckUtils]: 16: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} fmin_float_#t~ret3 := __fpclassify_float_#res; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,547 INFO L280 TraceCheckUtils]: 15: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,548 INFO L280 TraceCheckUtils]: 14: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} goto; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,548 INFO L280 TraceCheckUtils]: 13: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,548 INFO L280 TraceCheckUtils]: 12: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,549 INFO L280 TraceCheckUtils]: 11: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} fmin_float_#t~ret2 := __fpclassify_float_#res; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,549 INFO L280 TraceCheckUtils]: 10: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,550 INFO L280 TraceCheckUtils]: 9: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} goto; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,550 INFO L280 TraceCheckUtils]: 8: Hoare triple {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,551 INFO L280 TraceCheckUtils]: 7: Hoare triple {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {6786#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,552 INFO L280 TraceCheckUtils]: 6: Hoare triple {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} assume main_#t~short15; {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,553 INFO L280 TraceCheckUtils]: 5: Hoare triple {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} main_#t~short15 := main_#t~short11; {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,553 INFO L280 TraceCheckUtils]: 4: Hoare triple {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,554 INFO L280 TraceCheckUtils]: 3: Hoare triple {6833#(or (forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y))) (not |ULTIMATE.start_main_#t~short11|))} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {6820#(forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:45,555 INFO L280 TraceCheckUtils]: 2: Hoare triple {6837#(or (forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {6833#(or (forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y))) (not |ULTIMATE.start_main_#t~short11|))} is VALID [2020-07-28 17:54:45,557 INFO L280 TraceCheckUtils]: 1: Hoare triple {6681#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {6837#(or (forall ((ULTIMATE.start_fmin_float_~y (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~y))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:54:45,557 INFO L280 TraceCheckUtils]: 0: Hoare triple {6681#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {6681#true} is VALID [2020-07-28 17:54:45,558 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 17:54:45,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2039565338] [2020-07-28 17:54:45,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:45,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-07-28 17:54:45,559 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1401480482] [2020-07-28 17:54:45,560 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-28 17:54:45,560 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:45,560 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:54:45,898 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:45,899 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:54:45,899 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:45,899 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:54:45,900 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=65, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:54:45,900 INFO L87 Difference]: Start difference. First operand 74 states and 94 transitions. Second operand 10 states. [2020-07-28 17:54:47,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:47,383 INFO L93 Difference]: Finished difference Result 82 states and 101 transitions. [2020-07-28 17:54:47,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-28 17:54:47,383 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 26 [2020-07-28 17:54:47,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:47,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2020-07-28 17:54:47,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:54:47,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 95 transitions. [2020-07-28 17:54:47,385 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 9 states and 95 transitions. [2020-07-28 17:54:47,611 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 95 edges. 95 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:47,613 INFO L225 Difference]: With dead ends: 82 [2020-07-28 17:54:47,613 INFO L226 Difference]: Without dead ends: 74 [2020-07-28 17:54:47,614 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 42 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=56, Invalid=126, Unknown=0, NotChecked=0, Total=182 [2020-07-28 17:54:47,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2020-07-28 17:54:47,670 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2020-07-28 17:54:47,671 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:47,671 INFO L82 GeneralOperation]: Start isEquivalent. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:47,671 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:47,671 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:47,673 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:47,673 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2020-07-28 17:54:47,673 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2020-07-28 17:54:47,674 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:47,674 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:47,674 INFO L74 IsIncluded]: Start isIncluded. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:47,674 INFO L87 Difference]: Start difference. First operand 74 states. Second operand 74 states. [2020-07-28 17:54:47,676 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:47,676 INFO L93 Difference]: Finished difference Result 74 states and 93 transitions. [2020-07-28 17:54:47,676 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2020-07-28 17:54:47,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:47,677 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:47,677 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:47,677 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:47,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 74 states. [2020-07-28 17:54:47,678 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 93 transitions. [2020-07-28 17:54:47,679 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 93 transitions. Word has length 26 [2020-07-28 17:54:47,679 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:47,679 INFO L479 AbstractCegarLoop]: Abstraction has 74 states and 93 transitions. [2020-07-28 17:54:47,679 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:54:47,679 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 93 transitions. [2020-07-28 17:54:47,679 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 27 [2020-07-28 17:54:47,680 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:47,680 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:47,890 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 mathsat -unsat_core_generation=3 [2020-07-28 17:54:47,891 INFO L427 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:47,891 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:47,891 INFO L82 PathProgramCache]: Analyzing trace with hash -953749815, now seen corresponding path program 1 times [2020-07-28 17:54:47,891 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:47,892 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [397188750] [2020-07-28 17:54:47,892 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 14 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 14 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:47,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:47,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 79 conjuncts, 12 conjunts are in the unsatisfiable core [2020-07-28 17:54:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:47,966 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:48,044 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:48,170 INFO L280 TraceCheckUtils]: 0: Hoare triple {7202#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {7202#true} is VALID [2020-07-28 17:54:48,170 INFO L280 TraceCheckUtils]: 1: Hoare triple {7202#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {7202#true} is VALID [2020-07-28 17:54:48,170 INFO L280 TraceCheckUtils]: 2: Hoare triple {7202#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {7202#true} is VALID [2020-07-28 17:54:48,171 INFO L280 TraceCheckUtils]: 3: Hoare triple {7202#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {7202#true} is VALID [2020-07-28 17:54:48,171 INFO L280 TraceCheckUtils]: 4: Hoare triple {7202#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {7202#true} is VALID [2020-07-28 17:54:48,171 INFO L280 TraceCheckUtils]: 5: Hoare triple {7202#true} main_#t~short15 := main_#t~short11; {7202#true} is VALID [2020-07-28 17:54:48,171 INFO L280 TraceCheckUtils]: 6: Hoare triple {7202#true} assume main_#t~short15; {7202#true} is VALID [2020-07-28 17:54:48,172 INFO L280 TraceCheckUtils]: 7: Hoare triple {7202#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:48,172 INFO L280 TraceCheckUtils]: 8: Hoare triple {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:48,172 INFO L280 TraceCheckUtils]: 9: Hoare triple {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} goto; {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:48,173 INFO L280 TraceCheckUtils]: 10: Hoare triple {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:48,173 INFO L280 TraceCheckUtils]: 11: Hoare triple {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} fmin_float_#t~ret2 := __fpclassify_float_#res; {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:48,174 INFO L280 TraceCheckUtils]: 12: Hoare triple {7228#(= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7244#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x))} is VALID [2020-07-28 17:54:48,182 INFO L280 TraceCheckUtils]: 13: Hoare triple {7244#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7248#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} is VALID [2020-07-28 17:54:48,183 INFO L280 TraceCheckUtils]: 14: Hoare triple {7248#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} goto; {7248#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} is VALID [2020-07-28 17:54:48,185 INFO L280 TraceCheckUtils]: 15: Hoare triple {7248#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:48,186 INFO L280 TraceCheckUtils]: 16: Hoare triple {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} fmin_float_#t~ret3 := __fpclassify_float_#res; {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:48,187 INFO L280 TraceCheckUtils]: 17: Hoare triple {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:54:48,189 INFO L280 TraceCheckUtils]: 18: Hoare triple {7255#(and (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (or (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)))} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {7265#(and (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#t~ite4|) (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:54:48,190 INFO L280 TraceCheckUtils]: 19: Hoare triple {7265#(and (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#t~ite4|) (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {7269#(and (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|) (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:54:48,191 INFO L280 TraceCheckUtils]: 20: Hoare triple {7269#(and (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|) (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:48,192 INFO L280 TraceCheckUtils]: 21: Hoare triple {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:48,193 INFO L280 TraceCheckUtils]: 22: Hoare triple {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:48,194 INFO L280 TraceCheckUtils]: 23: Hoare triple {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} is VALID [2020-07-28 17:54:48,196 INFO L280 TraceCheckUtils]: 24: Hoare triple {7273#(and (or (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0))} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {7203#false} is VALID [2020-07-28 17:54:48,196 INFO L280 TraceCheckUtils]: 25: Hoare triple {7203#false} assume !false; {7203#false} is VALID [2020-07-28 17:54:48,198 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 17:54:48,198 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:48,369 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:54:48,496 INFO L280 TraceCheckUtils]: 25: Hoare triple {7203#false} assume !false; {7203#false} is VALID [2020-07-28 17:54:48,497 INFO L280 TraceCheckUtils]: 24: Hoare triple {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {7203#false} is VALID [2020-07-28 17:54:48,498 INFO L280 TraceCheckUtils]: 23: Hoare triple {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,498 INFO L280 TraceCheckUtils]: 22: Hoare triple {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,499 INFO L280 TraceCheckUtils]: 21: Hoare triple {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,499 INFO L280 TraceCheckUtils]: 20: Hoare triple {7305#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {7292#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,500 INFO L280 TraceCheckUtils]: 19: Hoare triple {7309#(fp.eq |ULTIMATE.start_fmin_float_#t~ite4| ULTIMATE.start_main_~y~0)} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {7305#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,501 INFO L280 TraceCheckUtils]: 18: Hoare triple {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {7309#(fp.eq |ULTIMATE.start_fmin_float_#t~ite4| ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,501 INFO L280 TraceCheckUtils]: 17: Hoare triple {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,502 INFO L280 TraceCheckUtils]: 16: Hoare triple {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} fmin_float_#t~ret3 := __fpclassify_float_#res; {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,503 INFO L280 TraceCheckUtils]: 15: Hoare triple {7323#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7313#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:48,504 INFO L280 TraceCheckUtils]: 14: Hoare triple {7323#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} goto; {7323#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,508 INFO L280 TraceCheckUtils]: 13: Hoare triple {7330#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7323#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,510 INFO L280 TraceCheckUtils]: 12: Hoare triple {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7330#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,510 INFO L280 TraceCheckUtils]: 11: Hoare triple {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} fmin_float_#t~ret2 := __fpclassify_float_#res; {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,511 INFO L280 TraceCheckUtils]: 10: Hoare triple {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,512 INFO L280 TraceCheckUtils]: 9: Hoare triple {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} goto; {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,512 INFO L280 TraceCheckUtils]: 8: Hoare triple {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 7: Hoare triple {7202#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7334#(or (and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))))) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0))} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 6: Hoare triple {7202#true} assume main_#t~short15; {7202#true} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 5: Hoare triple {7202#true} main_#t~short15 := main_#t~short11; {7202#true} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 4: Hoare triple {7202#true} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {7202#true} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 3: Hoare triple {7202#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {7202#true} is VALID [2020-07-28 17:54:48,515 INFO L280 TraceCheckUtils]: 2: Hoare triple {7202#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {7202#true} is VALID [2020-07-28 17:54:48,516 INFO L280 TraceCheckUtils]: 1: Hoare triple {7202#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {7202#true} is VALID [2020-07-28 17:54:48,516 INFO L280 TraceCheckUtils]: 0: Hoare triple {7202#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {7202#true} is VALID [2020-07-28 17:54:48,517 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 17:54:48,518 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [397188750] [2020-07-28 17:54:48,518 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:48,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9, 9] imperfect sequences [] total 16 [2020-07-28 17:54:48,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732133477] [2020-07-28 17:54:48,519 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2020-07-28 17:54:48,519 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:48,519 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 16 states. [2020-07-28 17:54:48,701 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:48,701 INFO L459 AbstractCegarLoop]: Interpolant automaton has 16 states [2020-07-28 17:54:48,702 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:48,702 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 16 interpolants. [2020-07-28 17:54:48,702 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=190, Unknown=0, NotChecked=0, Total=240 [2020-07-28 17:54:48,703 INFO L87 Difference]: Start difference. First operand 74 states and 93 transitions. Second operand 16 states. [2020-07-28 17:54:52,529 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 21 [2020-07-28 17:54:56,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:56,363 INFO L93 Difference]: Finished difference Result 154 states and 169 transitions. [2020-07-28 17:54:56,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-28 17:54:56,364 INFO L78 Accepts]: Start accepts. Automaton has 16 states. Word has length 26 [2020-07-28 17:54:56,364 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:54:56,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:54:56,365 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 122 transitions. [2020-07-28 17:54:56,365 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2020-07-28 17:54:56,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 122 transitions. [2020-07-28 17:54:56,366 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states and 122 transitions. [2020-07-28 17:54:56,636 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 122 edges. 122 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:56,639 INFO L225 Difference]: With dead ends: 154 [2020-07-28 17:54:56,639 INFO L226 Difference]: Without dead ends: 134 [2020-07-28 17:54:56,640 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=186, Invalid=464, Unknown=0, NotChecked=0, Total=650 [2020-07-28 17:54:56,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 134 states. [2020-07-28 17:54:56,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 134 to 72. [2020-07-28 17:54:56,690 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:54:56,691 INFO L82 GeneralOperation]: Start isEquivalent. First operand 134 states. Second operand 72 states. [2020-07-28 17:54:56,691 INFO L74 IsIncluded]: Start isIncluded. First operand 134 states. Second operand 72 states. [2020-07-28 17:54:56,691 INFO L87 Difference]: Start difference. First operand 134 states. Second operand 72 states. [2020-07-28 17:54:56,694 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:56,694 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-07-28 17:54:56,694 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2020-07-28 17:54:56,694 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:56,695 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:56,695 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 134 states. [2020-07-28 17:54:56,695 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 134 states. [2020-07-28 17:54:56,697 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:54:56,697 INFO L93 Difference]: Finished difference Result 134 states and 146 transitions. [2020-07-28 17:54:56,697 INFO L276 IsEmpty]: Start isEmpty. Operand 134 states and 146 transitions. [2020-07-28 17:54:56,698 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:54:56,698 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:54:56,698 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:54:56,698 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:54:56,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-28 17:54:56,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 87 transitions. [2020-07-28 17:54:56,700 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 87 transitions. Word has length 26 [2020-07-28 17:54:56,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:54:56,700 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 87 transitions. [2020-07-28 17:54:56,700 INFO L480 AbstractCegarLoop]: Interpolant automaton has 16 states. [2020-07-28 17:54:56,700 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 87 transitions. [2020-07-28 17:54:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2020-07-28 17:54:56,701 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:54:56,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:54:56,915 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 mathsat -unsat_core_generation=3 [2020-07-28 17:54:56,915 INFO L427 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:54:56,916 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:54:56,916 INFO L82 PathProgramCache]: Analyzing trace with hash -1548503636, now seen corresponding path program 1 times [2020-07-28 17:54:56,916 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:54:56,916 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [329203789] [2020-07-28 17:54:56,917 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 15 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 15 with mathsat -unsat_core_generation=3 [2020-07-28 17:54:56,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:57,002 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 22 conjunts are in the unsatisfiable core [2020-07-28 17:54:57,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:54:57,030 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:54:57,064 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:57,066 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:57,097 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:54:57,446 INFO L280 TraceCheckUtils]: 0: Hoare triple {7957#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {7957#true} is VALID [2020-07-28 17:54:57,447 INFO L280 TraceCheckUtils]: 1: Hoare triple {7957#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {7957#true} is VALID [2020-07-28 17:54:57,447 INFO L280 TraceCheckUtils]: 2: Hoare triple {7957#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {7957#true} is VALID [2020-07-28 17:54:57,448 INFO L280 TraceCheckUtils]: 3: Hoare triple {7957#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {7971#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:57,449 INFO L280 TraceCheckUtils]: 4: Hoare triple {7971#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {7975#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (not |ULTIMATE.start_main_#t~short11|)) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short11|))} is VALID [2020-07-28 17:54:57,450 INFO L280 TraceCheckUtils]: 5: Hoare triple {7975#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) (not |ULTIMATE.start_main_#t~short11|)) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short11|))} main_#t~short15 := main_#t~short11; {7979#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short15|) (and (not |ULTIMATE.start_main_#t~short15|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))))} is VALID [2020-07-28 17:54:57,451 INFO L280 TraceCheckUtils]: 6: Hoare triple {7979#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) |ULTIMATE.start_main_#t~short15|) (and (not |ULTIMATE.start_main_#t~short15|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))))} assume main_#t~short15; {7983#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:57,452 INFO L280 TraceCheckUtils]: 7: Hoare triple {7983#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,452 INFO L280 TraceCheckUtils]: 8: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,453 INFO L280 TraceCheckUtils]: 9: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} goto; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,453 INFO L280 TraceCheckUtils]: 10: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,454 INFO L280 TraceCheckUtils]: 11: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} fmin_float_#t~ret2 := __fpclassify_float_#res; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,454 INFO L280 TraceCheckUtils]: 12: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {8003#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} is VALID [2020-07-28 17:54:57,457 INFO L280 TraceCheckUtils]: 13: Hoare triple {8003#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,457 INFO L280 TraceCheckUtils]: 14: Hoare triple {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} goto; {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,458 INFO L280 TraceCheckUtils]: 15: Hoare triple {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {8014#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:54:57,459 INFO L280 TraceCheckUtils]: 16: Hoare triple {8014#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {8018#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} is VALID [2020-07-28 17:54:57,463 INFO L280 TraceCheckUtils]: 17: Hoare triple {8018#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {8022#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,465 INFO L280 TraceCheckUtils]: 18: Hoare triple {8022#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {7958#false} is VALID [2020-07-28 17:54:57,465 INFO L280 TraceCheckUtils]: 19: Hoare triple {7958#false} fmin_float_#t~ret3 := __fpclassify_float_#res; {7958#false} is VALID [2020-07-28 17:54:57,465 INFO L280 TraceCheckUtils]: 20: Hoare triple {7958#false} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 21: Hoare triple {7958#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 22: Hoare triple {7958#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 23: Hoare triple {7958#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 24: Hoare triple {7958#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 25: Hoare triple {7958#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {7958#false} is VALID [2020-07-28 17:54:57,466 INFO L280 TraceCheckUtils]: 26: Hoare triple {7958#false} assume !false; {7958#false} is VALID [2020-07-28 17:54:57,470 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 17:54:57,470 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:54:57,764 INFO L280 TraceCheckUtils]: 26: Hoare triple {7958#false} assume !false; {7958#false} is VALID [2020-07-28 17:54:57,765 INFO L280 TraceCheckUtils]: 25: Hoare triple {7958#false} assume main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0);havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18; {7958#false} is VALID [2020-07-28 17:54:57,765 INFO L280 TraceCheckUtils]: 24: Hoare triple {7958#false} main_#t~ret18 := isnan_float_#res;main_#t~short19 := 0bv32 == main_#t~ret18; {7958#false} is VALID [2020-07-28 17:54:57,765 INFO L280 TraceCheckUtils]: 23: Hoare triple {7958#false} assume main_#t~short19;isnan_float_#in~x := main_~y~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); {7958#false} is VALID [2020-07-28 17:54:57,765 INFO L280 TraceCheckUtils]: 22: Hoare triple {7958#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {7958#false} is VALID [2020-07-28 17:54:57,765 INFO L280 TraceCheckUtils]: 21: Hoare triple {7958#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {7958#false} is VALID [2020-07-28 17:54:57,766 INFO L280 TraceCheckUtils]: 20: Hoare triple {7958#false} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {7958#false} is VALID [2020-07-28 17:54:57,766 INFO L280 TraceCheckUtils]: 19: Hoare triple {7958#false} fmin_float_#t~ret3 := __fpclassify_float_#res; {7958#false} is VALID [2020-07-28 17:54:57,769 INFO L280 TraceCheckUtils]: 18: Hoare triple {8022#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {7958#false} is VALID [2020-07-28 17:54:57,771 INFO L280 TraceCheckUtils]: 17: Hoare triple {8018#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {8022#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,773 INFO L280 TraceCheckUtils]: 16: Hoare triple {8014#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {8018#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} is VALID [2020-07-28 17:54:57,773 INFO L280 TraceCheckUtils]: 15: Hoare triple {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {8014#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:54:57,774 INFO L280 TraceCheckUtils]: 14: Hoare triple {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} goto; {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,777 INFO L280 TraceCheckUtils]: 13: Hoare triple {8003#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {8007#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:54:57,778 INFO L280 TraceCheckUtils]: 12: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {8003#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} is VALID [2020-07-28 17:54:57,779 INFO L280 TraceCheckUtils]: 11: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} fmin_float_#t~ret2 := __fpclassify_float_#res; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,779 INFO L280 TraceCheckUtils]: 10: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,780 INFO L280 TraceCheckUtils]: 9: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} goto; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,780 INFO L280 TraceCheckUtils]: 8: Hoare triple {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,781 INFO L280 TraceCheckUtils]: 7: Hoare triple {7983#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {7987#(fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)} is VALID [2020-07-28 17:54:57,782 INFO L280 TraceCheckUtils]: 6: Hoare triple {8110#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15; {7983#(fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)} is VALID [2020-07-28 17:54:57,782 INFO L280 TraceCheckUtils]: 5: Hoare triple {8114#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short11|))} main_#t~short15 := main_#t~short11; {8110#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:54:57,783 INFO L280 TraceCheckUtils]: 4: Hoare triple {8118#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret10 := isnan_float_#res;main_#t~short11 := 0bv32 == main_#t~ret10; {8114#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short11|))} is VALID [2020-07-28 17:54:57,783 INFO L280 TraceCheckUtils]: 3: Hoare triple {7957#true} assume main_#t~short11;isnan_float_#in~x := main_~y~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); {8118#(or (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:54:57,783 INFO L280 TraceCheckUtils]: 2: Hoare triple {7957#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {7957#true} is VALID [2020-07-28 17:54:57,784 INFO L280 TraceCheckUtils]: 1: Hoare triple {7957#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {7957#true} is VALID [2020-07-28 17:54:57,784 INFO L280 TraceCheckUtils]: 0: Hoare triple {7957#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {7957#true} is VALID [2020-07-28 17:54:57,785 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 17:54:57,786 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [329203789] [2020-07-28 17:54:57,786 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:54:57,786 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12, 12] imperfect sequences [] total 15 [2020-07-28 17:54:57,786 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197232653] [2020-07-28 17:54:57,787 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-07-28 17:54:57,787 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:54:57,787 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 15 states. [2020-07-28 17:54:57,843 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:54:57,844 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-07-28 17:54:57,844 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:54:57,844 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-07-28 17:54:57,844 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=171, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:54:57,845 INFO L87 Difference]: Start difference. First operand 72 states and 87 transitions. Second operand 15 states. [2020-07-28 17:55:03,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:03,131 INFO L93 Difference]: Finished difference Result 195 states and 205 transitions. [2020-07-28 17:55:03,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 38 states. [2020-07-28 17:55:03,131 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 27 [2020-07-28 17:55:03,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:03,132 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:55:03,134 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 205 transitions. [2020-07-28 17:55:03,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-07-28 17:55:03,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38 states to 38 states and 205 transitions. [2020-07-28 17:55:03,136 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 38 states and 205 transitions. [2020-07-28 17:55:03,642 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 205 edges. 205 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:03,645 INFO L225 Difference]: With dead ends: 195 [2020-07-28 17:55:03,645 INFO L226 Difference]: Without dead ends: 158 [2020-07-28 17:55:03,646 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 81 GetRequests, 34 SyntacticMatches, 5 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 444 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=455, Invalid=1437, Unknown=0, NotChecked=0, Total=1892 [2020-07-28 17:55:03,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 158 states. [2020-07-28 17:55:03,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 158 to 43. [2020-07-28 17:55:03,701 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:03,702 INFO L82 GeneralOperation]: Start isEquivalent. First operand 158 states. Second operand 43 states. [2020-07-28 17:55:03,702 INFO L74 IsIncluded]: Start isIncluded. First operand 158 states. Second operand 43 states. [2020-07-28 17:55:03,702 INFO L87 Difference]: Start difference. First operand 158 states. Second operand 43 states. [2020-07-28 17:55:03,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:03,705 INFO L93 Difference]: Finished difference Result 158 states and 163 transitions. [2020-07-28 17:55:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 163 transitions. [2020-07-28 17:55:03,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:03,706 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:03,706 INFO L74 IsIncluded]: Start isIncluded. First operand 43 states. Second operand 158 states. [2020-07-28 17:55:03,706 INFO L87 Difference]: Start difference. First operand 43 states. Second operand 158 states. [2020-07-28 17:55:03,709 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:03,709 INFO L93 Difference]: Finished difference Result 158 states and 163 transitions. [2020-07-28 17:55:03,710 INFO L276 IsEmpty]: Start isEmpty. Operand 158 states and 163 transitions. [2020-07-28 17:55:03,710 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:03,710 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:03,710 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:03,710 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:03,711 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 43 states. [2020-07-28 17:55:03,711 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 43 states to 43 states and 53 transitions. [2020-07-28 17:55:03,711 INFO L78 Accepts]: Start accepts. Automaton has 43 states and 53 transitions. Word has length 27 [2020-07-28 17:55:03,712 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:03,712 INFO L479 AbstractCegarLoop]: Abstraction has 43 states and 53 transitions. [2020-07-28 17:55:03,712 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-07-28 17:55:03,712 INFO L276 IsEmpty]: Start isEmpty. Operand 43 states and 53 transitions. [2020-07-28 17:55:03,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 29 [2020-07-28 17:55:03,712 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:55:03,713 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:55:03,925 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 15 mathsat -unsat_core_generation=3 [2020-07-28 17:55:03,926 INFO L427 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:55:03,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:55:03,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1364791880, now seen corresponding path program 1 times [2020-07-28 17:55:03,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:55:03,927 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1315355837] [2020-07-28 17:55:03,927 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 16 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 16 with mathsat -unsat_core_generation=3 [2020-07-28 17:55:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:04,000 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 21 conjunts are in the unsatisfiable core [2020-07-28 17:55:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:04,014 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:55:04,038 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:04,039 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:04,352 INFO L280 TraceCheckUtils]: 0: Hoare triple {8822#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {8822#true} is VALID [2020-07-28 17:55:04,354 INFO L280 TraceCheckUtils]: 1: Hoare triple {8822#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {8830#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} is VALID [2020-07-28 17:55:04,356 INFO L280 TraceCheckUtils]: 2: Hoare triple {8830#(or (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {8834#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} is VALID [2020-07-28 17:55:04,357 INFO L280 TraceCheckUtils]: 3: Hoare triple {8834#(or (and |ULTIMATE.start_main_#t~short11| (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short11|)))} assume !main_#t~short11; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,358 INFO L280 TraceCheckUtils]: 4: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,358 INFO L280 TraceCheckUtils]: 5: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,359 INFO L280 TraceCheckUtils]: 6: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,360 INFO L280 TraceCheckUtils]: 7: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,360 INFO L280 TraceCheckUtils]: 8: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,361 INFO L280 TraceCheckUtils]: 9: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short14; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,362 INFO L280 TraceCheckUtils]: 10: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {8860#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} is VALID [2020-07-28 17:55:04,365 INFO L280 TraceCheckUtils]: 11: Hoare triple {8860#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,366 INFO L280 TraceCheckUtils]: 12: Hoare triple {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} goto; {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,366 INFO L280 TraceCheckUtils]: 13: Hoare triple {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {8871#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:55:04,368 INFO L280 TraceCheckUtils]: 14: Hoare triple {8871#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {8875#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} is VALID [2020-07-28 17:55:04,370 INFO L280 TraceCheckUtils]: 15: Hoare triple {8875#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {8879#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,373 INFO L280 TraceCheckUtils]: 16: Hoare triple {8879#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {8823#false} is VALID [2020-07-28 17:55:04,373 INFO L280 TraceCheckUtils]: 17: Hoare triple {8823#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {8823#false} is VALID [2020-07-28 17:55:04,373 INFO L280 TraceCheckUtils]: 18: Hoare triple {8823#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {8823#false} is VALID [2020-07-28 17:55:04,374 INFO L280 TraceCheckUtils]: 19: Hoare triple {8823#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {8823#false} is VALID [2020-07-28 17:55:04,374 INFO L280 TraceCheckUtils]: 20: Hoare triple {8823#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {8823#false} is VALID [2020-07-28 17:55:04,374 INFO L280 TraceCheckUtils]: 21: Hoare triple {8823#false} assume !main_#t~short19; {8823#false} is VALID [2020-07-28 17:55:04,375 INFO L280 TraceCheckUtils]: 22: Hoare triple {8823#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {8823#false} is VALID [2020-07-28 17:55:04,375 INFO L280 TraceCheckUtils]: 23: Hoare triple {8823#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {8823#false} is VALID [2020-07-28 17:55:04,375 INFO L280 TraceCheckUtils]: 24: Hoare triple {8823#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {8823#false} is VALID [2020-07-28 17:55:04,375 INFO L280 TraceCheckUtils]: 25: Hoare triple {8823#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {8823#false} is VALID [2020-07-28 17:55:04,376 INFO L280 TraceCheckUtils]: 26: Hoare triple {8823#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {8823#false} is VALID [2020-07-28 17:55:04,376 INFO L280 TraceCheckUtils]: 27: Hoare triple {8823#false} assume !false; {8823#false} is VALID [2020-07-28 17:55:04,379 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 17:55:04,379 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:55:04,617 INFO L280 TraceCheckUtils]: 27: Hoare triple {8823#false} assume !false; {8823#false} is VALID [2020-07-28 17:55:04,617 INFO L280 TraceCheckUtils]: 26: Hoare triple {8823#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {8823#false} is VALID [2020-07-28 17:55:04,617 INFO L280 TraceCheckUtils]: 25: Hoare triple {8823#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {8823#false} is VALID [2020-07-28 17:55:04,618 INFO L280 TraceCheckUtils]: 24: Hoare triple {8823#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {8823#false} is VALID [2020-07-28 17:55:04,618 INFO L280 TraceCheckUtils]: 23: Hoare triple {8823#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {8823#false} is VALID [2020-07-28 17:55:04,618 INFO L280 TraceCheckUtils]: 22: Hoare triple {8823#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {8823#false} is VALID [2020-07-28 17:55:04,618 INFO L280 TraceCheckUtils]: 21: Hoare triple {8823#false} assume !main_#t~short19; {8823#false} is VALID [2020-07-28 17:55:04,618 INFO L280 TraceCheckUtils]: 20: Hoare triple {8823#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {8823#false} is VALID [2020-07-28 17:55:04,619 INFO L280 TraceCheckUtils]: 19: Hoare triple {8823#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {8823#false} is VALID [2020-07-28 17:55:04,619 INFO L280 TraceCheckUtils]: 18: Hoare triple {8823#false} assume 0bv32 == fmin_float_#t~ret2;havoc fmin_float_#t~ret2;fmin_float_#res := fmin_float_~y; {8823#false} is VALID [2020-07-28 17:55:04,619 INFO L280 TraceCheckUtils]: 17: Hoare triple {8823#false} fmin_float_#t~ret2 := __fpclassify_float_#res; {8823#false} is VALID [2020-07-28 17:55:04,627 INFO L280 TraceCheckUtils]: 16: Hoare triple {8879#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {8823#false} is VALID [2020-07-28 17:55:04,629 INFO L280 TraceCheckUtils]: 15: Hoare triple {8875#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {8879#(and (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32))) (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (or (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872255 32))) (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483649 32)))) (not (= (_ bv2147483648 32) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,631 INFO L280 TraceCheckUtils]: 14: Hoare triple {8871#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {8875#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv2155872256 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv4286578687 32)))) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))) (or (not (bvuge ULTIMATE.start___fpclassify_float_~w~0 (_ bv8388608 32))) (not (bvule ULTIMATE.start___fpclassify_float_~w~0 (_ bv2139095039 32)))))} is VALID [2020-07-28 17:55:04,632 INFO L280 TraceCheckUtils]: 13: Hoare triple {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {8871#(and (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:55:04,632 INFO L280 TraceCheckUtils]: 12: Hoare triple {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} goto; {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,636 INFO L280 TraceCheckUtils]: 11: Hoare triple {8860#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {8864#(fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))} is VALID [2020-07-28 17:55:04,637 INFO L280 TraceCheckUtils]: 10: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {8860#(fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)} is VALID [2020-07-28 17:55:04,637 INFO L280 TraceCheckUtils]: 9: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short14; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,638 INFO L280 TraceCheckUtils]: 8: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,638 INFO L280 TraceCheckUtils]: 7: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,639 INFO L280 TraceCheckUtils]: 6: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,639 INFO L280 TraceCheckUtils]: 5: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,640 INFO L280 TraceCheckUtils]: 4: Hoare triple {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} main_#t~short15 := main_#t~short11; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,640 INFO L280 TraceCheckUtils]: 3: Hoare triple {8988#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} assume !main_#t~short11; {8838#(fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:04,641 INFO L280 TraceCheckUtils]: 2: Hoare triple {8992#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {8988#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) |ULTIMATE.start_main_#t~short11|)} is VALID [2020-07-28 17:55:04,642 INFO L280 TraceCheckUtils]: 1: Hoare triple {8822#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {8992#(or (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:55:04,642 INFO L280 TraceCheckUtils]: 0: Hoare triple {8822#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {8822#true} is VALID [2020-07-28 17:55:04,644 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 17:55:04,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1315355837] [2020-07-28 17:55:04,645 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:55:04,645 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10, 10] imperfect sequences [] total 12 [2020-07-28 17:55:04,645 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1656241455] [2020-07-28 17:55:04,646 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-07-28 17:55:04,646 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:55:04,646 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-28 17:55:04,710 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 31 edges. 31 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:04,710 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-28 17:55:04,710 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:55:04,711 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-28 17:55:04,711 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=101, Unknown=0, NotChecked=0, Total=132 [2020-07-28 17:55:04,711 INFO L87 Difference]: Start difference. First operand 43 states and 53 transitions. Second operand 12 states. [2020-07-28 17:55:07,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:07,099 INFO L93 Difference]: Finished difference Result 125 states and 140 transitions. [2020-07-28 17:55:07,099 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-07-28 17:55:07,099 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 28 [2020-07-28 17:55:07,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:07,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-28 17:55:07,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 138 transitions. [2020-07-28 17:55:07,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-28 17:55:07,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 138 transitions. [2020-07-28 17:55:07,102 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 21 states and 138 transitions. [2020-07-28 17:55:07,416 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 138 edges. 138 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:07,418 INFO L225 Difference]: With dead ends: 125 [2020-07-28 17:55:07,418 INFO L226 Difference]: Without dead ends: 101 [2020-07-28 17:55:07,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 39 SyntacticMatches, 5 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 147 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=209, Invalid=603, Unknown=0, NotChecked=0, Total=812 [2020-07-28 17:55:07,419 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 101 states. [2020-07-28 17:55:07,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 101 to 41. [2020-07-28 17:55:07,461 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:07,461 INFO L82 GeneralOperation]: Start isEquivalent. First operand 101 states. Second operand 41 states. [2020-07-28 17:55:07,462 INFO L74 IsIncluded]: Start isIncluded. First operand 101 states. Second operand 41 states. [2020-07-28 17:55:07,462 INFO L87 Difference]: Start difference. First operand 101 states. Second operand 41 states. [2020-07-28 17:55:07,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:07,464 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2020-07-28 17:55:07,464 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2020-07-28 17:55:07,464 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:07,464 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:07,464 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 101 states. [2020-07-28 17:55:07,464 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 101 states. [2020-07-28 17:55:07,466 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:07,466 INFO L93 Difference]: Finished difference Result 101 states and 109 transitions. [2020-07-28 17:55:07,466 INFO L276 IsEmpty]: Start isEmpty. Operand 101 states and 109 transitions. [2020-07-28 17:55:07,467 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:07,467 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:07,467 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:07,467 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:07,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-28 17:55:07,468 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 49 transitions. [2020-07-28 17:55:07,468 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 49 transitions. Word has length 28 [2020-07-28 17:55:07,468 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:07,468 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 49 transitions. [2020-07-28 17:55:07,468 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-28 17:55:07,469 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 49 transitions. [2020-07-28 17:55:07,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 17:55:07,470 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:55:07,470 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:55:07,680 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 16 mathsat -unsat_core_generation=3 [2020-07-28 17:55:07,681 INFO L427 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:55:07,681 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:55:07,682 INFO L82 PathProgramCache]: Analyzing trace with hash 430789518, now seen corresponding path program 1 times [2020-07-28 17:55:07,682 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:55:07,683 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [95319061] [2020-07-28 17:55:07,683 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 17 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 17 with mathsat -unsat_core_generation=3 [2020-07-28 17:55:07,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:07,752 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 10 conjunts are in the unsatisfiable core [2020-07-28 17:55:07,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:07,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:55:07,790 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:07,808 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:07,861 INFO L280 TraceCheckUtils]: 0: Hoare triple {9454#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {9454#true} is VALID [2020-07-28 17:55:07,861 INFO L280 TraceCheckUtils]: 1: Hoare triple {9454#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {9454#true} is VALID [2020-07-28 17:55:07,861 INFO L280 TraceCheckUtils]: 2: Hoare triple {9454#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {9454#true} is VALID [2020-07-28 17:55:07,861 INFO L280 TraceCheckUtils]: 3: Hoare triple {9454#true} assume !main_#t~short11; {9454#true} is VALID [2020-07-28 17:55:07,861 INFO L280 TraceCheckUtils]: 4: Hoare triple {9454#true} main_#t~short15 := main_#t~short11; {9454#true} is VALID [2020-07-28 17:55:07,862 INFO L280 TraceCheckUtils]: 5: Hoare triple {9454#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {9454#true} is VALID [2020-07-28 17:55:07,862 INFO L280 TraceCheckUtils]: 6: Hoare triple {9454#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {9454#true} is VALID [2020-07-28 17:55:07,863 INFO L280 TraceCheckUtils]: 7: Hoare triple {9454#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {9480#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:55:07,864 INFO L280 TraceCheckUtils]: 8: Hoare triple {9480#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {9484#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short14|) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short14|)))} is VALID [2020-07-28 17:55:07,864 INFO L280 TraceCheckUtils]: 9: Hoare triple {9484#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short14|) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short14|)))} main_#t~short15 := main_#t~short14; {9488#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|)) (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:55:07,865 INFO L280 TraceCheckUtils]: 10: Hoare triple {9488#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|)) (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,865 INFO L280 TraceCheckUtils]: 11: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,866 INFO L280 TraceCheckUtils]: 12: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} goto; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,866 INFO L280 TraceCheckUtils]: 13: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,866 INFO L280 TraceCheckUtils]: 14: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} fmin_float_#t~ret2 := __fpclassify_float_#res; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,867 INFO L280 TraceCheckUtils]: 15: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,867 INFO L280 TraceCheckUtils]: 16: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,868 INFO L280 TraceCheckUtils]: 17: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} goto; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,868 INFO L280 TraceCheckUtils]: 18: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,868 INFO L280 TraceCheckUtils]: 19: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} fmin_float_#t~ret3 := __fpclassify_float_#res; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,869 INFO L280 TraceCheckUtils]: 20: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 21: Hoare triple {9492#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume ~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~x; {9455#false} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 22: Hoare triple {9455#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {9455#false} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 23: Hoare triple {9455#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {9455#false} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 24: Hoare triple {9455#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {9455#false} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 25: Hoare triple {9455#false} assume !main_#t~short19; {9455#false} is VALID [2020-07-28 17:55:07,870 INFO L280 TraceCheckUtils]: 26: Hoare triple {9455#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {9455#false} is VALID [2020-07-28 17:55:07,871 INFO L280 TraceCheckUtils]: 27: Hoare triple {9455#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {9455#false} is VALID [2020-07-28 17:55:07,871 INFO L280 TraceCheckUtils]: 28: Hoare triple {9455#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {9455#false} is VALID [2020-07-28 17:55:07,871 INFO L280 TraceCheckUtils]: 29: Hoare triple {9455#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {9455#false} is VALID [2020-07-28 17:55:07,871 INFO L280 TraceCheckUtils]: 30: Hoare triple {9455#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {9455#false} is VALID [2020-07-28 17:55:07,872 INFO L280 TraceCheckUtils]: 31: Hoare triple {9455#false} assume !false; {9455#false} is VALID [2020-07-28 17:55:07,873 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 17:55:07,873 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:55:08,334 INFO L342 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-28 17:55:08,334 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:55:08,339 INFO L280 TraceCheckUtils]: 31: Hoare triple {9455#false} assume !false; {9455#false} is VALID [2020-07-28 17:55:08,339 INFO L280 TraceCheckUtils]: 30: Hoare triple {9455#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 29: Hoare triple {9455#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 28: Hoare triple {9455#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 27: Hoare triple {9455#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 26: Hoare triple {9455#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 25: Hoare triple {9455#false} assume !main_#t~short19; {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 24: Hoare triple {9455#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {9455#false} is VALID [2020-07-28 17:55:08,340 INFO L280 TraceCheckUtils]: 23: Hoare triple {9455#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {9455#false} is VALID [2020-07-28 17:55:08,341 INFO L280 TraceCheckUtils]: 22: Hoare triple {9455#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {9455#false} is VALID [2020-07-28 17:55:08,378 INFO L280 TraceCheckUtils]: 21: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume ~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~x; {9455#false} is VALID [2020-07-28 17:55:08,379 INFO L280 TraceCheckUtils]: 20: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,379 INFO L280 TraceCheckUtils]: 19: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} fmin_float_#t~ret3 := __fpclassify_float_#res; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,380 INFO L280 TraceCheckUtils]: 18: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,380 INFO L280 TraceCheckUtils]: 17: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} goto; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,381 INFO L280 TraceCheckUtils]: 16: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,381 INFO L280 TraceCheckUtils]: 15: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,381 INFO L280 TraceCheckUtils]: 14: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} fmin_float_#t~ret2 := __fpclassify_float_#res; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,382 INFO L280 TraceCheckUtils]: 13: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,382 INFO L280 TraceCheckUtils]: 12: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} goto; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,382 INFO L280 TraceCheckUtils]: 11: Hoare triple {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,383 INFO L280 TraceCheckUtils]: 10: Hoare triple {9620#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (not |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9586#(forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~y)))} is VALID [2020-07-28 17:55:08,384 INFO L280 TraceCheckUtils]: 9: Hoare triple {9624#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (not |ULTIMATE.start_main_#t~short14|))} main_#t~short15 := main_#t~short14; {9620#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (not |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:55:08,384 INFO L280 TraceCheckUtils]: 8: Hoare triple {9628#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {9624#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (not |ULTIMATE.start_main_#t~short14|))} is VALID [2020-07-28 17:55:08,386 INFO L280 TraceCheckUtils]: 7: Hoare triple {9454#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {9628#(or (forall ((ULTIMATE.start_fmin_float_~x (_ FloatingPoint 8 24))) (not (fp.lt ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~y~0))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:55:08,386 INFO L280 TraceCheckUtils]: 6: Hoare triple {9454#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {9454#true} is VALID [2020-07-28 17:55:08,386 INFO L280 TraceCheckUtils]: 5: Hoare triple {9454#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {9454#true} is VALID [2020-07-28 17:55:08,386 INFO L280 TraceCheckUtils]: 4: Hoare triple {9454#true} main_#t~short15 := main_#t~short11; {9454#true} is VALID [2020-07-28 17:55:08,386 INFO L280 TraceCheckUtils]: 3: Hoare triple {9454#true} assume !main_#t~short11; {9454#true} is VALID [2020-07-28 17:55:08,387 INFO L280 TraceCheckUtils]: 2: Hoare triple {9454#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {9454#true} is VALID [2020-07-28 17:55:08,387 INFO L280 TraceCheckUtils]: 1: Hoare triple {9454#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {9454#true} is VALID [2020-07-28 17:55:08,387 INFO L280 TraceCheckUtils]: 0: Hoare triple {9454#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {9454#true} is VALID [2020-07-28 17:55:08,388 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 17:55:08,389 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [95319061] [2020-07-28 17:55:08,389 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:55:08,389 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2020-07-28 17:55:08,389 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [603158308] [2020-07-28 17:55:08,390 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-07-28 17:55:08,390 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:55:08,390 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 10 states. [2020-07-28 17:55:08,732 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:08,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-07-28 17:55:08,733 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:55:08,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-07-28 17:55:08,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2020-07-28 17:55:08,733 INFO L87 Difference]: Start difference. First operand 41 states and 49 transitions. Second operand 10 states. [2020-07-28 17:55:10,146 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:10,146 INFO L93 Difference]: Finished difference Result 52 states and 59 transitions. [2020-07-28 17:55:10,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-07-28 17:55:10,146 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 32 [2020-07-28 17:55:10,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:55:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 57 transitions. [2020-07-28 17:55:10,147 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-07-28 17:55:10,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 57 transitions. [2020-07-28 17:55:10,147 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 8 states and 57 transitions. [2020-07-28 17:55:11,082 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 57 edges. 57 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:11,083 INFO L225 Difference]: With dead ends: 52 [2020-07-28 17:55:11,083 INFO L226 Difference]: Without dead ends: 41 [2020-07-28 17:55:11,084 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-07-28 17:55:11,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-28 17:55:11,129 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 41. [2020-07-28 17:55:11,129 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:11,129 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 41 states. [2020-07-28 17:55:11,129 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2020-07-28 17:55:11,130 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2020-07-28 17:55:11,131 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:11,131 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-07-28 17:55:11,131 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-07-28 17:55:11,132 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:11,132 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:11,132 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 41 states. [2020-07-28 17:55:11,132 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 41 states. [2020-07-28 17:55:11,134 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:11,134 INFO L93 Difference]: Finished difference Result 41 states and 48 transitions. [2020-07-28 17:55:11,134 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-07-28 17:55:11,134 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:11,134 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:11,135 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:11,135 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:11,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 41 states. [2020-07-28 17:55:11,135 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 48 transitions. [2020-07-28 17:55:11,136 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 48 transitions. Word has length 32 [2020-07-28 17:55:11,136 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:11,136 INFO L479 AbstractCegarLoop]: Abstraction has 41 states and 48 transitions. [2020-07-28 17:55:11,136 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-07-28 17:55:11,136 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 48 transitions. [2020-07-28 17:55:11,136 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2020-07-28 17:55:11,137 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:55:11,137 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:55:11,348 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 mathsat -unsat_core_generation=3 [2020-07-28 17:55:11,348 INFO L427 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:55:11,348 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:55:11,348 INFO L82 PathProgramCache]: Analyzing trace with hash 1131854096, now seen corresponding path program 1 times [2020-07-28 17:55:11,349 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:55:11,349 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [847277764] [2020-07-28 17:55:11,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 18 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 18 with mathsat -unsat_core_generation=3 [2020-07-28 17:55:11,430 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:11,435 INFO L263 TraceCheckSpWp]: Trace formula consists of 93 conjuncts, 15 conjunts are in the unsatisfiable core [2020-07-28 17:55:11,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:11,454 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:55:11,498 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:11,518 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:11,600 INFO L280 TraceCheckUtils]: 0: Hoare triple {9865#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {9865#true} is VALID [2020-07-28 17:55:11,601 INFO L280 TraceCheckUtils]: 1: Hoare triple {9865#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {9865#true} is VALID [2020-07-28 17:55:11,601 INFO L280 TraceCheckUtils]: 2: Hoare triple {9865#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {9865#true} is VALID [2020-07-28 17:55:11,601 INFO L280 TraceCheckUtils]: 3: Hoare triple {9865#true} assume !main_#t~short11; {9865#true} is VALID [2020-07-28 17:55:11,601 INFO L280 TraceCheckUtils]: 4: Hoare triple {9865#true} main_#t~short15 := main_#t~short11; {9865#true} is VALID [2020-07-28 17:55:11,602 INFO L280 TraceCheckUtils]: 5: Hoare triple {9865#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {9865#true} is VALID [2020-07-28 17:55:11,602 INFO L280 TraceCheckUtils]: 6: Hoare triple {9865#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {9865#true} is VALID [2020-07-28 17:55:11,603 INFO L280 TraceCheckUtils]: 7: Hoare triple {9865#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {9891#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} is VALID [2020-07-28 17:55:11,604 INFO L280 TraceCheckUtils]: 8: Hoare triple {9891#(or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {9895#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short14|) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short14|)))} is VALID [2020-07-28 17:55:11,605 INFO L280 TraceCheckUtils]: 9: Hoare triple {9895#(or (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short14|) (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short14|)))} main_#t~short15 := main_#t~short14; {9899#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|)) (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:55:11,606 INFO L280 TraceCheckUtils]: 10: Hoare triple {9899#(or (and (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (not |ULTIMATE.start_main_#t~short15|)) (and (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:11,606 INFO L280 TraceCheckUtils]: 11: Hoare triple {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:11,607 INFO L280 TraceCheckUtils]: 12: Hoare triple {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} goto; {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:11,607 INFO L280 TraceCheckUtils]: 13: Hoare triple {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:11,607 INFO L280 TraceCheckUtils]: 14: Hoare triple {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} fmin_float_#t~ret2 := __fpclassify_float_#res; {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} is VALID [2020-07-28 17:55:11,608 INFO L280 TraceCheckUtils]: 15: Hoare triple {9903#(not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {9919#(not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x))} is VALID [2020-07-28 17:55:11,610 INFO L280 TraceCheckUtils]: 16: Hoare triple {9919#(not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {9923#(not (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} is VALID [2020-07-28 17:55:11,611 INFO L280 TraceCheckUtils]: 17: Hoare triple {9923#(not (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} goto; {9923#(not (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} is VALID [2020-07-28 17:55:11,617 INFO L280 TraceCheckUtils]: 18: Hoare triple {9923#(not (fp.eq (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)) (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9866#false} is VALID [2020-07-28 17:55:11,617 INFO L280 TraceCheckUtils]: 19: Hoare triple {9866#false} fmin_float_#t~ret3 := __fpclassify_float_#res; {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 20: Hoare triple {9866#false} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 21: Hoare triple {9866#false} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 22: Hoare triple {9866#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 23: Hoare triple {9866#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 24: Hoare triple {9866#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {9866#false} is VALID [2020-07-28 17:55:11,618 INFO L280 TraceCheckUtils]: 25: Hoare triple {9866#false} assume !main_#t~short19; {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 26: Hoare triple {9866#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 27: Hoare triple {9866#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 28: Hoare triple {9866#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 29: Hoare triple {9866#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 30: Hoare triple {9866#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {9866#false} is VALID [2020-07-28 17:55:11,619 INFO L280 TraceCheckUtils]: 31: Hoare triple {9866#false} assume !false; {9866#false} is VALID [2020-07-28 17:55:11,621 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 17:55:11,621 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:55:11,678 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:55:11,865 INFO L342 QuantifierPusher]: Applying distributivity to a DISJUNCTION[2, 2, 2, 1] term [2020-07-28 17:55:11,866 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:55:11,871 INFO L280 TraceCheckUtils]: 31: Hoare triple {9866#false} assume !false; {9866#false} is VALID [2020-07-28 17:55:11,872 INFO L280 TraceCheckUtils]: 30: Hoare triple {9866#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {9866#false} is VALID [2020-07-28 17:55:11,872 INFO L280 TraceCheckUtils]: 29: Hoare triple {9866#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {9866#false} is VALID [2020-07-28 17:55:11,872 INFO L280 TraceCheckUtils]: 28: Hoare triple {9866#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {9866#false} is VALID [2020-07-28 17:55:11,872 INFO L280 TraceCheckUtils]: 27: Hoare triple {9866#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {9866#false} is VALID [2020-07-28 17:55:11,872 INFO L280 TraceCheckUtils]: 26: Hoare triple {9866#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {9866#false} is VALID [2020-07-28 17:55:11,873 INFO L280 TraceCheckUtils]: 25: Hoare triple {9866#false} assume !main_#t~short19; {9866#false} is VALID [2020-07-28 17:55:11,873 INFO L280 TraceCheckUtils]: 24: Hoare triple {9866#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {9866#false} is VALID [2020-07-28 17:55:11,873 INFO L280 TraceCheckUtils]: 23: Hoare triple {9866#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {9866#false} is VALID [2020-07-28 17:55:11,873 INFO L280 TraceCheckUtils]: 22: Hoare triple {9866#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {9866#false} is VALID [2020-07-28 17:55:11,873 INFO L280 TraceCheckUtils]: 21: Hoare triple {9866#false} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {9866#false} is VALID [2020-07-28 17:55:11,874 INFO L280 TraceCheckUtils]: 20: Hoare triple {9866#false} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {9866#false} is VALID [2020-07-28 17:55:11,874 INFO L280 TraceCheckUtils]: 19: Hoare triple {9866#false} fmin_float_#t~ret3 := __fpclassify_float_#res; {9866#false} is VALID [2020-07-28 17:55:11,875 INFO L280 TraceCheckUtils]: 18: Hoare triple {10008#(and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {9866#false} is VALID [2020-07-28 17:55:11,875 INFO L280 TraceCheckUtils]: 17: Hoare triple {10008#(and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} goto; {10008#(and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:55:11,878 INFO L280 TraceCheckUtils]: 16: Hoare triple {10015#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10008#(and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32))))} is VALID [2020-07-28 17:55:11,879 INFO L280 TraceCheckUtils]: 15: Hoare triple {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10015#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)))} is VALID [2020-07-28 17:55:11,880 INFO L280 TraceCheckUtils]: 14: Hoare triple {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} fmin_float_#t~ret2 := __fpclassify_float_#res; {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:11,880 INFO L280 TraceCheckUtils]: 13: Hoare triple {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:11,881 INFO L280 TraceCheckUtils]: 12: Hoare triple {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} goto; {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:11,882 INFO L280 TraceCheckUtils]: 11: Hoare triple {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:11,883 INFO L280 TraceCheckUtils]: 10: Hoare triple {10035#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (not |ULTIMATE.start_main_#t~short15|))} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10019#(and (not (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~y)) (not (= ULTIMATE.start_fmin_float_~y (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:11,884 INFO L280 TraceCheckUtils]: 9: Hoare triple {10039#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (not |ULTIMATE.start_main_#t~short14|))} main_#t~short15 := main_#t~short14; {10035#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (not |ULTIMATE.start_main_#t~short15|))} is VALID [2020-07-28 17:55:11,885 INFO L280 TraceCheckUtils]: 8: Hoare triple {10043#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {10039#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (not |ULTIMATE.start_main_#t~short14|))} is VALID [2020-07-28 17:55:11,886 INFO L280 TraceCheckUtils]: 7: Hoare triple {9865#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {10043#(or (and (not (= ULTIMATE.start_main_~y~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))) (not (= ULTIMATE.start_main_~y~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23))))) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 6: Hoare triple {9865#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 5: Hoare triple {9865#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 4: Hoare triple {9865#true} main_#t~short15 := main_#t~short11; {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 3: Hoare triple {9865#true} assume !main_#t~short11; {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 2: Hoare triple {9865#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 1: Hoare triple {9865#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {9865#true} is VALID [2020-07-28 17:55:11,887 INFO L280 TraceCheckUtils]: 0: Hoare triple {9865#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {9865#true} is VALID [2020-07-28 17:55:11,889 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 17:55:11,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [847277764] [2020-07-28 17:55:11,890 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:55:11,890 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8, 8] imperfect sequences [] total 14 [2020-07-28 17:55:11,890 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596074911] [2020-07-28 17:55:11,890 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2020-07-28 17:55:11,891 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:55:11,891 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 14 states. [2020-07-28 17:55:11,960 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 44 edges. 44 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:11,960 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-07-28 17:55:11,960 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:55:11,960 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-07-28 17:55:11,961 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=31, Invalid=151, Unknown=0, NotChecked=0, Total=182 [2020-07-28 17:55:11,961 INFO L87 Difference]: Start difference. First operand 41 states and 48 transitions. Second operand 14 states. [2020-07-28 17:55:13,930 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:13,930 INFO L93 Difference]: Finished difference Result 55 states and 61 transitions. [2020-07-28 17:55:13,931 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-28 17:55:13,931 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 32 [2020-07-28 17:55:13,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:13,931 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-28 17:55:13,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 61 transitions. [2020-07-28 17:55:13,932 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-07-28 17:55:13,932 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 61 transitions. [2020-07-28 17:55:13,932 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 11 states and 61 transitions. [2020-07-28 17:55:14,069 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 61 edges. 61 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:14,070 INFO L225 Difference]: With dead ends: 55 [2020-07-28 17:55:14,070 INFO L226 Difference]: Without dead ends: 41 [2020-07-28 17:55:14,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 50 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=113, Invalid=349, Unknown=0, NotChecked=0, Total=462 [2020-07-28 17:55:14,071 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 41 states. [2020-07-28 17:55:14,107 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 41 to 39. [2020-07-28 17:55:14,108 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:14,108 INFO L82 GeneralOperation]: Start isEquivalent. First operand 41 states. Second operand 39 states. [2020-07-28 17:55:14,108 INFO L74 IsIncluded]: Start isIncluded. First operand 41 states. Second operand 39 states. [2020-07-28 17:55:14,108 INFO L87 Difference]: Start difference. First operand 41 states. Second operand 39 states. [2020-07-28 17:55:14,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:14,109 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-07-28 17:55:14,110 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-07-28 17:55:14,110 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:14,110 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:14,110 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 41 states. [2020-07-28 17:55:14,110 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 41 states. [2020-07-28 17:55:14,111 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:14,111 INFO L93 Difference]: Finished difference Result 41 states and 44 transitions. [2020-07-28 17:55:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 44 transitions. [2020-07-28 17:55:14,111 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:14,111 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:14,111 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:14,111 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:14,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-28 17:55:14,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 42 transitions. [2020-07-28 17:55:14,112 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 42 transitions. Word has length 32 [2020-07-28 17:55:14,112 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:14,112 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 42 transitions. [2020-07-28 17:55:14,112 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-07-28 17:55:14,113 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 42 transitions. [2020-07-28 17:55:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2020-07-28 17:55:14,113 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:55:14,113 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:55:14,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 mathsat -unsat_core_generation=3 [2020-07-28 17:55:14,321 INFO L427 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:55:14,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:55:14,322 INFO L82 PathProgramCache]: Analyzing trace with hash -1713269395, now seen corresponding path program 1 times [2020-07-28 17:55:14,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:55:14,323 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2027500621] [2020-07-28 17:55:14,323 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 19 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 19 with mathsat -unsat_core_generation=3 [2020-07-28 17:55:14,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:14,392 INFO L263 TraceCheckSpWp]: Trace formula consists of 98 conjuncts, 11 conjunts are in the unsatisfiable core [2020-07-28 17:55:14,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:14,409 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:55:14,453 INFO L523 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-07-28 17:55:14,574 INFO L280 TraceCheckUtils]: 0: Hoare triple {10287#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {10287#true} is VALID [2020-07-28 17:55:14,574 INFO L280 TraceCheckUtils]: 1: Hoare triple {10287#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {10287#true} is VALID [2020-07-28 17:55:14,574 INFO L280 TraceCheckUtils]: 2: Hoare triple {10287#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {10287#true} is VALID [2020-07-28 17:55:14,575 INFO L280 TraceCheckUtils]: 3: Hoare triple {10287#true} assume !main_#t~short11; {10287#true} is VALID [2020-07-28 17:55:14,575 INFO L280 TraceCheckUtils]: 4: Hoare triple {10287#true} main_#t~short15 := main_#t~short11; {10287#true} is VALID [2020-07-28 17:55:14,575 INFO L280 TraceCheckUtils]: 5: Hoare triple {10287#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {10287#true} is VALID [2020-07-28 17:55:14,576 INFO L280 TraceCheckUtils]: 6: Hoare triple {10287#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {10287#true} is VALID [2020-07-28 17:55:14,576 INFO L280 TraceCheckUtils]: 7: Hoare triple {10287#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {10287#true} is VALID [2020-07-28 17:55:14,576 INFO L280 TraceCheckUtils]: 8: Hoare triple {10287#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {10287#true} is VALID [2020-07-28 17:55:14,576 INFO L280 TraceCheckUtils]: 9: Hoare triple {10287#true} main_#t~short15 := main_#t~short14; {10287#true} is VALID [2020-07-28 17:55:14,577 INFO L280 TraceCheckUtils]: 10: Hoare triple {10287#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10322#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x ULTIMATE.start___fpclassify_float_~x))} is VALID [2020-07-28 17:55:14,587 INFO L280 TraceCheckUtils]: 11: Hoare triple {10322#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x ULTIMATE.start___fpclassify_float_~x))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10326#(and (= ULTIMATE.start_fmin_float_~x (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:55:14,588 INFO L280 TraceCheckUtils]: 12: Hoare triple {10326#(and (= ULTIMATE.start_fmin_float_~x (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x))} goto; {10326#(and (= ULTIMATE.start_fmin_float_~x (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x))} is VALID [2020-07-28 17:55:14,592 INFO L280 TraceCheckUtils]: 13: Hoare triple {10326#(and (= ULTIMATE.start_fmin_float_~x (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,593 INFO L280 TraceCheckUtils]: 14: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} fmin_float_#t~ret2 := __fpclassify_float_#res; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,594 INFO L280 TraceCheckUtils]: 15: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,595 INFO L280 TraceCheckUtils]: 16: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,595 INFO L280 TraceCheckUtils]: 17: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} goto; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,596 INFO L280 TraceCheckUtils]: 18: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,596 INFO L280 TraceCheckUtils]: 19: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,597 INFO L280 TraceCheckUtils]: 20: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,598 INFO L280 TraceCheckUtils]: 21: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,599 INFO L280 TraceCheckUtils]: 22: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} fmin_float_#t~ret3 := __fpclassify_float_#res; {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,601 INFO L280 TraceCheckUtils]: 23: Hoare triple {10333#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (or (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start_fmin_float_~x) (= ULTIMATE.start_fmin_float_~x (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)))))} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {10364#(and (= ULTIMATE.start_main_~x~0 |ULTIMATE.start_fmin_float_#res|) (or (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_fmin_float_#res|) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_fmin_float_#res|)))} is VALID [2020-07-28 17:55:14,603 INFO L280 TraceCheckUtils]: 24: Hoare triple {10364#(and (= ULTIMATE.start_main_~x~0 |ULTIMATE.start_fmin_float_#res|) (or (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_fmin_float_#res|) (= (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)) |ULTIMATE.start_fmin_float_#res|)))} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,603 INFO L280 TraceCheckUtils]: 25: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,604 INFO L280 TraceCheckUtils]: 26: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} assume !main_#t~short19; {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,604 INFO L280 TraceCheckUtils]: 27: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,605 INFO L280 TraceCheckUtils]: 28: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,605 INFO L280 TraceCheckUtils]: 29: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,606 INFO L280 TraceCheckUtils]: 30: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} is VALID [2020-07-28 17:55:14,607 INFO L280 TraceCheckUtils]: 31: Hoare triple {10368#(and (= ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~res~0) (or (= ULTIMATE.start_main_~x~0 (fp (_ bv0 1) (_ bv0 8) (_ bv0 23))) (= ULTIMATE.start_main_~x~0 (fp (_ bv1 1) (_ bv0 8) (_ bv0 23)))))} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {10288#false} is VALID [2020-07-28 17:55:14,607 INFO L280 TraceCheckUtils]: 32: Hoare triple {10288#false} assume !false; {10288#false} is VALID [2020-07-28 17:55:14,610 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 17:55:14,610 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:55:14,753 INFO L523 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-07-28 17:55:14,849 INFO L280 TraceCheckUtils]: 32: Hoare triple {10288#false} assume !false; {10288#false} is VALID [2020-07-28 17:55:14,850 INFO L280 TraceCheckUtils]: 31: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {10288#false} is VALID [2020-07-28 17:55:14,851 INFO L280 TraceCheckUtils]: 30: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,851 INFO L280 TraceCheckUtils]: 29: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,852 INFO L280 TraceCheckUtils]: 28: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,852 INFO L280 TraceCheckUtils]: 27: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,853 INFO L280 TraceCheckUtils]: 26: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} assume !main_#t~short19; {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,853 INFO L280 TraceCheckUtils]: 25: Hoare triple {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,854 INFO L280 TraceCheckUtils]: 24: Hoare triple {10418#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0)} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {10396#(fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,854 INFO L280 TraceCheckUtils]: 23: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume 0bv32 == fmin_float_#t~ret3;havoc fmin_float_#t~ret3;fmin_float_#res := fmin_float_~x; {10418#(fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,855 INFO L280 TraceCheckUtils]: 22: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} fmin_float_#t~ret3 := __fpclassify_float_#res; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,855 INFO L280 TraceCheckUtils]: 21: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,855 INFO L280 TraceCheckUtils]: 20: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,856 INFO L280 TraceCheckUtils]: 19: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,856 INFO L280 TraceCheckUtils]: 18: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,857 INFO L280 TraceCheckUtils]: 17: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} goto; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,857 INFO L280 TraceCheckUtils]: 16: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,858 INFO L280 TraceCheckUtils]: 15: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,858 INFO L280 TraceCheckUtils]: 14: Hoare triple {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} fmin_float_#t~ret2 := __fpclassify_float_#res; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,859 INFO L280 TraceCheckUtils]: 13: Hoare triple {10453#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0))} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {10422#(fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)} is VALID [2020-07-28 17:55:14,860 INFO L280 TraceCheckUtils]: 12: Hoare triple {10453#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0))} goto; {10453#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:55:14,862 INFO L280 TraceCheckUtils]: 11: Hoare triple {10460#(and (or (forall ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)) ULTIMATE.start___fpclassify_float_~x)) (not (= (_ bv2147483648 32) |v_skolemized_q#valueAsBitvector_6|)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)) (or (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)))} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10453#(or (and (not (= (_ bv0 32) ULTIMATE.start___fpclassify_float_~w~0)) (not (= (bvadd ULTIMATE.start___fpclassify_float_~w~0 (_ bv2147483648 32)) (_ bv0 32)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0))} is VALID [2020-07-28 17:55:14,864 INFO L280 TraceCheckUtils]: 10: Hoare triple {10287#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10460#(and (or (forall ((|v_skolemized_q#valueAsBitvector_6| (_ BitVec 32))) (or (not (= (fp ((_ extract 31 31) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 30 23) |v_skolemized_q#valueAsBitvector_6|) ((_ extract 22 0) |v_skolemized_q#valueAsBitvector_6|)) ULTIMATE.start___fpclassify_float_~x)) (not (= (_ bv2147483648 32) |v_skolemized_q#valueAsBitvector_6|)))) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)) (or (not (= (fp (_ bv0 1) (_ bv0 8) (_ bv0 23)) ULTIMATE.start___fpclassify_float_~x)) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0)))} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 9: Hoare triple {10287#true} main_#t~short15 := main_#t~short14; {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 8: Hoare triple {10287#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 7: Hoare triple {10287#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 6: Hoare triple {10287#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 5: Hoare triple {10287#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 4: Hoare triple {10287#true} main_#t~short15 := main_#t~short11; {10287#true} is VALID [2020-07-28 17:55:14,865 INFO L280 TraceCheckUtils]: 3: Hoare triple {10287#true} assume !main_#t~short11; {10287#true} is VALID [2020-07-28 17:55:14,866 INFO L280 TraceCheckUtils]: 2: Hoare triple {10287#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {10287#true} is VALID [2020-07-28 17:55:14,866 INFO L280 TraceCheckUtils]: 1: Hoare triple {10287#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {10287#true} is VALID [2020-07-28 17:55:14,866 INFO L280 TraceCheckUtils]: 0: Hoare triple {10287#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {10287#true} is VALID [2020-07-28 17:55:14,867 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 17:55:14,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2027500621] [2020-07-28 17:55:14,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:55:14,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7, 7] imperfect sequences [] total 12 [2020-07-28 17:55:14,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48936878] [2020-07-28 17:55:14,868 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-07-28 17:55:14,868 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:55:14,868 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states. [2020-07-28 17:55:15,088 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:15,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-07-28 17:55:15,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:55:15,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-07-28 17:55:15,089 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=102, Unknown=0, NotChecked=0, Total=132 [2020-07-28 17:55:15,090 INFO L87 Difference]: Start difference. First operand 39 states and 42 transitions. Second operand 12 states. [2020-07-28 17:55:16,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:16,575 INFO L93 Difference]: Finished difference Result 79 states and 81 transitions. [2020-07-28 17:55:16,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-28 17:55:16,575 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 33 [2020-07-28 17:55:16,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:16,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-28 17:55:16,576 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 81 transitions. [2020-07-28 17:55:16,576 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-07-28 17:55:16,577 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 81 transitions. [2020-07-28 17:55:16,577 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 12 states and 81 transitions. [2020-07-28 17:55:16,730 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 81 edges. 81 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:16,731 INFO L225 Difference]: With dead ends: 79 [2020-07-28 17:55:16,731 INFO L226 Difference]: Without dead ends: 61 [2020-07-28 17:55:16,732 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 53 SyntacticMatches, 1 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=90, Invalid=252, Unknown=0, NotChecked=0, Total=342 [2020-07-28 17:55:16,732 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2020-07-28 17:55:16,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 39. [2020-07-28 17:55:16,771 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:16,772 INFO L82 GeneralOperation]: Start isEquivalent. First operand 61 states. Second operand 39 states. [2020-07-28 17:55:16,772 INFO L74 IsIncluded]: Start isIncluded. First operand 61 states. Second operand 39 states. [2020-07-28 17:55:16,772 INFO L87 Difference]: Start difference. First operand 61 states. Second operand 39 states. [2020-07-28 17:55:16,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:16,773 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-07-28 17:55:16,773 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-07-28 17:55:16,773 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:16,773 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:16,774 INFO L74 IsIncluded]: Start isIncluded. First operand 39 states. Second operand 61 states. [2020-07-28 17:55:16,774 INFO L87 Difference]: Start difference. First operand 39 states. Second operand 61 states. [2020-07-28 17:55:16,774 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:16,775 INFO L93 Difference]: Finished difference Result 61 states and 62 transitions. [2020-07-28 17:55:16,775 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 62 transitions. [2020-07-28 17:55:16,775 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:16,775 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:16,775 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:16,775 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:16,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 39 states. [2020-07-28 17:55:16,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 39 states to 39 states and 41 transitions. [2020-07-28 17:55:16,776 INFO L78 Accepts]: Start accepts. Automaton has 39 states and 41 transitions. Word has length 33 [2020-07-28 17:55:16,776 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:16,776 INFO L479 AbstractCegarLoop]: Abstraction has 39 states and 41 transitions. [2020-07-28 17:55:16,777 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-07-28 17:55:16,777 INFO L276 IsEmpty]: Start isEmpty. Operand 39 states and 41 transitions. [2020-07-28 17:55:16,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-07-28 17:55:16,778 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 17:55:16,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 17:55:16,986 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 mathsat -unsat_core_generation=3 [2020-07-28 17:55:16,987 INFO L427 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 17:55:16,987 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 17:55:16,987 INFO L82 PathProgramCache]: Analyzing trace with hash 739407273, now seen corresponding path program 1 times [2020-07-28 17:55:16,987 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2020-07-28 17:55:16,988 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1401093417] [2020-07-28 17:55:16,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 20 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 20 with mathsat -unsat_core_generation=3 [2020-07-28 17:55:17,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:17,054 INFO L263 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 3 conjunts are in the unsatisfiable core [2020-07-28 17:55:17,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 17:55:17,065 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-28 17:55:17,098 INFO L280 TraceCheckUtils]: 0: Hoare triple {10784#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {10784#true} is VALID [2020-07-28 17:55:17,099 INFO L280 TraceCheckUtils]: 1: Hoare triple {10784#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {10784#true} is VALID [2020-07-28 17:55:17,099 INFO L280 TraceCheckUtils]: 2: Hoare triple {10784#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {10784#true} is VALID [2020-07-28 17:55:17,099 INFO L280 TraceCheckUtils]: 3: Hoare triple {10784#true} assume !main_#t~short11; {10784#true} is VALID [2020-07-28 17:55:17,100 INFO L280 TraceCheckUtils]: 4: Hoare triple {10784#true} main_#t~short15 := main_#t~short11; {10784#true} is VALID [2020-07-28 17:55:17,100 INFO L280 TraceCheckUtils]: 5: Hoare triple {10784#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {10784#true} is VALID [2020-07-28 17:55:17,100 INFO L280 TraceCheckUtils]: 6: Hoare triple {10784#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {10784#true} is VALID [2020-07-28 17:55:17,100 INFO L280 TraceCheckUtils]: 7: Hoare triple {10784#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {10784#true} is VALID [2020-07-28 17:55:17,100 INFO L280 TraceCheckUtils]: 8: Hoare triple {10784#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 9: Hoare triple {10784#true} main_#t~short15 := main_#t~short14; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 10: Hoare triple {10784#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 11: Hoare triple {10784#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 12: Hoare triple {10784#true} goto; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 13: Hoare triple {10784#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 14: Hoare triple {10784#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 15: Hoare triple {10784#true} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10784#true} is VALID [2020-07-28 17:55:17,101 INFO L280 TraceCheckUtils]: 16: Hoare triple {10784#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10784#true} is VALID [2020-07-28 17:55:17,102 INFO L280 TraceCheckUtils]: 17: Hoare triple {10784#true} goto; {10784#true} is VALID [2020-07-28 17:55:17,102 INFO L280 TraceCheckUtils]: 18: Hoare triple {10784#true} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {10784#true} is VALID [2020-07-28 17:55:17,102 INFO L280 TraceCheckUtils]: 19: Hoare triple {10784#true} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {10784#true} is VALID [2020-07-28 17:55:17,102 INFO L280 TraceCheckUtils]: 20: Hoare triple {10784#true} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {10784#true} is VALID [2020-07-28 17:55:17,103 INFO L280 TraceCheckUtils]: 21: Hoare triple {10784#true} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {10852#(= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)} is VALID [2020-07-28 17:55:17,103 INFO L280 TraceCheckUtils]: 22: Hoare triple {10852#(= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)} fmin_float_#t~ret3 := __fpclassify_float_#res; {10856#(= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32))} is VALID [2020-07-28 17:55:17,103 INFO L280 TraceCheckUtils]: 23: Hoare triple {10856#(= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {10785#false} is VALID [2020-07-28 17:55:17,103 INFO L280 TraceCheckUtils]: 24: Hoare triple {10785#false} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 25: Hoare triple {10785#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 26: Hoare triple {10785#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 27: Hoare triple {10785#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 28: Hoare triple {10785#false} assume !main_#t~short19; {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 29: Hoare triple {10785#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {10785#false} is VALID [2020-07-28 17:55:17,104 INFO L280 TraceCheckUtils]: 30: Hoare triple {10785#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {10785#false} is VALID [2020-07-28 17:55:17,105 INFO L280 TraceCheckUtils]: 31: Hoare triple {10785#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {10785#false} is VALID [2020-07-28 17:55:17,105 INFO L280 TraceCheckUtils]: 32: Hoare triple {10785#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {10785#false} is VALID [2020-07-28 17:55:17,105 INFO L280 TraceCheckUtils]: 33: Hoare triple {10785#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {10785#false} is VALID [2020-07-28 17:55:17,105 INFO L280 TraceCheckUtils]: 34: Hoare triple {10785#false} assume !false; {10785#false} is VALID [2020-07-28 17:55:17,106 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 17:55:17,106 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-07-28 17:55:17,129 INFO L280 TraceCheckUtils]: 34: Hoare triple {10785#false} assume !false; {10785#false} is VALID [2020-07-28 17:55:17,129 INFO L280 TraceCheckUtils]: 33: Hoare triple {10785#false} assume main_#t~short22 && !~fp.eq~FLOAT(main_~res~0, main_~x~0);havoc main_#t~ret20;havoc main_#t~short22;havoc main_#t~ret21; {10785#false} is VALID [2020-07-28 17:55:17,130 INFO L280 TraceCheckUtils]: 32: Hoare triple {10785#false} main_#t~ret21 := isnan_float_#res;main_#t~short22 := 0bv32 != main_#t~ret21; {10785#false} is VALID [2020-07-28 17:55:17,130 INFO L280 TraceCheckUtils]: 31: Hoare triple {10785#false} assume main_#t~short22;isnan_float_#in~x := main_~y~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); {10785#false} is VALID [2020-07-28 17:55:17,130 INFO L280 TraceCheckUtils]: 30: Hoare triple {10785#false} main_#t~ret20 := isnan_float_#res;main_#t~short22 := 0bv32 == main_#t~ret20; {10785#false} is VALID [2020-07-28 17:55:17,130 INFO L280 TraceCheckUtils]: 29: Hoare triple {10785#false} assume !(main_#t~short19 && !~fp.eq~FLOAT(main_~res~0, main_~y~0));havoc main_#t~ret17;havoc main_#t~short19;havoc main_#t~ret18;isnan_float_#in~x := main_~x~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); {10785#false} is VALID [2020-07-28 17:55:17,131 INFO L280 TraceCheckUtils]: 28: Hoare triple {10785#false} assume !main_#t~short19; {10785#false} is VALID [2020-07-28 17:55:17,131 INFO L280 TraceCheckUtils]: 27: Hoare triple {10785#false} main_#t~ret17 := isnan_float_#res;main_#t~short19 := 0bv32 != main_#t~ret17; {10785#false} is VALID [2020-07-28 17:55:17,131 INFO L280 TraceCheckUtils]: 26: Hoare triple {10785#false} main_#t~ret16 := fmin_float_#res;main_~res~0 := main_#t~ret16;havoc main_#t~ret16;isnan_float_#in~x := main_~x~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); {10785#false} is VALID [2020-07-28 17:55:17,131 INFO L280 TraceCheckUtils]: 25: Hoare triple {10785#false} fmin_float_#res := fmin_float_#t~ite4;havoc fmin_float_#t~ite4; {10785#false} is VALID [2020-07-28 17:55:17,131 INFO L280 TraceCheckUtils]: 24: Hoare triple {10785#false} assume !~fp.lt~FLOAT(fmin_float_~x, fmin_float_~y);fmin_float_#t~ite4 := fmin_float_~y; {10785#false} is VALID [2020-07-28 17:55:17,132 INFO L280 TraceCheckUtils]: 23: Hoare triple {10856#(= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32))} assume !(0bv32 == fmin_float_#t~ret3);havoc fmin_float_#t~ret3; {10785#false} is VALID [2020-07-28 17:55:17,133 INFO L280 TraceCheckUtils]: 22: Hoare triple {10852#(= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)} fmin_float_#t~ret3 := __fpclassify_float_#res; {10856#(= |ULTIMATE.start_fmin_float_#t~ret3| (_ bv0 32))} is VALID [2020-07-28 17:55:17,133 INFO L280 TraceCheckUtils]: 21: Hoare triple {10784#true} assume !(2139095040bv32 == __fpclassify_float_~w~0 || 4286578688bv32 == __fpclassify_float_~w~0);__fpclassify_float_#res := 0bv32; {10852#(= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)} is VALID [2020-07-28 17:55:17,133 INFO L280 TraceCheckUtils]: 20: Hoare triple {10784#true} assume !((~bvuge32(__fpclassify_float_~w~0, 1bv32) && ~bvule32(__fpclassify_float_~w~0, 8388607bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2147483649bv32) && ~bvule32(__fpclassify_float_~w~0, 2155872255bv32))); {10784#true} is VALID [2020-07-28 17:55:17,133 INFO L280 TraceCheckUtils]: 19: Hoare triple {10784#true} assume !((~bvuge32(__fpclassify_float_~w~0, 8388608bv32) && ~bvule32(__fpclassify_float_~w~0, 2139095039bv32)) || (~bvuge32(__fpclassify_float_~w~0, 2155872256bv32) && ~bvule32(__fpclassify_float_~w~0, 4286578687bv32))); {10784#true} is VALID [2020-07-28 17:55:17,133 INFO L280 TraceCheckUtils]: 18: Hoare triple {10784#true} assume !(0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0); {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 17: Hoare triple {10784#true} goto; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 16: Hoare triple {10784#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 15: Hoare triple {10784#true} assume !(0bv32 == fmin_float_#t~ret2);havoc fmin_float_#t~ret2;__fpclassify_float_#in~x := fmin_float_~y;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 14: Hoare triple {10784#true} fmin_float_#t~ret2 := __fpclassify_float_#res; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 13: Hoare triple {10784#true} assume 0bv32 == __fpclassify_float_~w~0 || 2147483648bv32 == __fpclassify_float_~w~0;__fpclassify_float_#res := 2bv32; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 12: Hoare triple {10784#true} goto; {10784#true} is VALID [2020-07-28 17:55:17,134 INFO L280 TraceCheckUtils]: 11: Hoare triple {10784#true} call __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset := #Ultimate.allocOnStack(4bv32);call write~intFLOATTYPE4(__fpclassify_float_~x, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);call __fpclassify_float_#t~mem0 := read~intINTTYPE4(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);__fpclassify_float_~w~0 := __fpclassify_float_#t~mem0;call write~intFLOATTYPE4(__fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, 4bv32);havoc __fpclassify_float_#t~union1;havoc __fpclassify_float_#t~mem0;call ULTIMATE.dealloc(__fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset);havoc __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 10: Hoare triple {10784#true} assume main_#t~short15;havoc main_#t~short11;havoc main_#t~ret13;havoc main_#t~ret10;havoc main_#t~short14;havoc main_#t~ret12;havoc main_#t~ret9;havoc main_#t~short15;fmin_float_#in~x, fmin_float_#in~y := main_~x~0, main_~y~0;havoc fmin_float_#res;havoc fmin_float_#t~ret2, fmin_float_#t~ret3, fmin_float_#t~ite4, fmin_float_~x, fmin_float_~y;fmin_float_~x := fmin_float_#in~x;fmin_float_~y := fmin_float_#in~y;__fpclassify_float_#in~x := fmin_float_~x;havoc __fpclassify_float_#res;havoc __fpclassify_float_#t~mem0, __fpclassify_float_#t~union1, __fpclassify_float_~#gf_u~0.base, __fpclassify_float_~#gf_u~0.offset, __fpclassify_float_~x, __fpclassify_float_~w~0;__fpclassify_float_~x := __fpclassify_float_#in~x;havoc __fpclassify_float_~w~0; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 9: Hoare triple {10784#true} main_#t~short15 := main_#t~short14; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 8: Hoare triple {10784#true} main_#t~ret13 := isnan_float_#res;main_#t~short14 := 0bv32 != main_#t~ret13; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 7: Hoare triple {10784#true} assume main_#t~short14;isnan_float_#in~x := main_~y~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); {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 6: Hoare triple {10784#true} main_#t~ret12 := isnan_float_#res;main_#t~short14 := 0bv32 == main_#t~ret12; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 5: Hoare triple {10784#true} assume !main_#t~short15;isnan_float_#in~x := main_~x~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); {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 4: Hoare triple {10784#true} main_#t~short15 := main_#t~short11; {10784#true} is VALID [2020-07-28 17:55:17,135 INFO L280 TraceCheckUtils]: 3: Hoare triple {10784#true} assume !main_#t~short11; {10784#true} is VALID [2020-07-28 17:55:17,136 INFO L280 TraceCheckUtils]: 2: Hoare triple {10784#true} main_#t~ret9 := isnan_float_#res;main_#t~short11 := 0bv32 != main_#t~ret9; {10784#true} is VALID [2020-07-28 17:55:17,136 INFO L280 TraceCheckUtils]: 1: Hoare triple {10784#true} havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~ret9, main_#t~ret10, main_#t~short11, main_#t~ret12, main_#t~ret13, main_#t~short14, main_#t~short15, main_#t~ret16, main_#t~ret17, main_#t~ret18, main_#t~short19, main_#t~ret20, main_#t~ret21, main_#t~short22, main_~res~0, main_~x~0, main_~y~0;main_~x~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~y~0 := main_#t~nondet8;havoc main_#t~nondet8;isnan_float_#in~x := main_~x~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); {10784#true} is VALID [2020-07-28 17:55:17,136 INFO L280 TraceCheckUtils]: 0: Hoare triple {10784#true} #NULL.base, #NULL.offset := 0bv32, 0bv32;#valid := #valid[0bv32 := 0bv1];assume ~bvult32(0bv32, #StackHeapBarrier);currentRoundingMode := ~roundNearestTiesToEven; {10784#true} is VALID [2020-07-28 17:55:17,136 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 17:55:17,137 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1401093417] [2020-07-28 17:55:17,137 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2020-07-28 17:55:17,137 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2020-07-28 17:55:17,137 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697538345] [2020-07-28 17:55:17,138 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-28 17:55:17,138 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 17:55:17,138 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 17:55:17,177 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 35 edges. 35 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:17,177 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 17:55:17,178 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2020-07-28 17:55:17,178 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 17:55:17,178 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 17:55:17,178 INFO L87 Difference]: Start difference. First operand 39 states and 41 transitions. Second operand 4 states. [2020-07-28 17:55:17,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:17,310 INFO L93 Difference]: Finished difference Result 39 states and 41 transitions. [2020-07-28 17:55:17,310 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 17:55:17,310 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-07-28 17:55:17,310 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 17:55:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:55:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2020-07-28 17:55:17,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 17:55:17,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 41 transitions. [2020-07-28 17:55:17,312 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 41 transitions. [2020-07-28 17:55:17,360 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 41 edges. 41 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 17:55:17,360 INFO L225 Difference]: With dead ends: 39 [2020-07-28 17:55:17,360 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 17:55:17,361 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 17:55:17,361 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 17:55:17,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 17:55:17,361 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 17:55:17,362 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 17:55:17,362 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:55:17,362 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:55:17,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:17,362 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:55:17,362 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:55:17,362 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:17,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:17,363 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 17:55:17,363 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 17:55:17,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 17:55:17,363 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 17:55:17,363 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:55:17,363 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:17,363 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 17:55:17,363 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 17:55:17,364 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 17:55:17,364 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 17:55:17,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 17:55:17,364 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 35 [2020-07-28 17:55:17,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 17:55:17,364 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 17:55:17,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 17:55:17,364 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 17:55:17,364 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 17:55:17,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 20 mathsat -unsat_core_generation=3 [2020-07-28 17:55:17,569 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-28 17:55:17,816 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 87 [2020-07-28 17:55:18,003 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 142 DAG size of output: 135 [2020-07-28 17:55:18,111 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification. DAG size of input: 143 DAG size of output: 78 [2020-07-28 17:55:18,997 WARN L193 SmtUtils]: Spent 630.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 38 [2020-07-28 17:55:19,792 WARN L193 SmtUtils]: Spent 780.00 ms on a formula simplification. DAG size of input: 135 DAG size of output: 27 [2020-07-28 17:55:21,256 WARN L193 SmtUtils]: Spent 1.46 s on a formula simplification. DAG size of input: 77 DAG size of output: 32 [2020-07-28 17:55:21,618 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 24 [2020-07-28 17:55:21,839 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification. DAG size of input: 47 DAG size of output: 32 [2020-07-28 17:55:22,249 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 32 [2020-07-28 17:55:22,773 WARN L193 SmtUtils]: Spent 520.00 ms on a formula simplification. DAG size of input: 92 DAG size of output: 42 [2020-07-28 17:55:23,321 WARN L193 SmtUtils]: Spent 544.00 ms on a formula simplification. DAG size of input: 115 DAG size of output: 34 [2020-07-28 17:55:23,589 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 50 DAG size of output: 23 [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L68-3(lines 68 69) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L68-5(lines 68 84) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L68-7(lines 68 84) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 81) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L69(line 69) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L36(lines 36 37) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point L69-2(line 69) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-07-28 17:55:23,631 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L271 CegarLoopResult]: At program point L86(lines 59 87) the Hoare annotation is: true [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L29(lines 29 32) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L29-1(lines 29 32) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L38(lines 38 39) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L80(line 80) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L80-2(lines 80 83) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L23(lines 23 32) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L23-1(lines 23 32) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L81(line 81) no Hoare annotation was computed. [2020-07-28 17:55:23,632 INFO L268 CegarLoopResult]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2020-07-28 17:55:23,633 INFO L264 CegarLoopResult]: At program point L15-2(lines 15 19) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse1 (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))) (or (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (not .cse1) (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_fmin_float_~x ULTIMATE.start___fpclassify_float_~x)) (and .cse0 (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse1 (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))) [2020-07-28 17:55:23,633 INFO L268 CegarLoopResult]: For program point L15-3(lines 12 33) no Hoare annotation was computed. [2020-07-28 17:55:23,633 INFO L268 CegarLoopResult]: For program point L15-5(lines 15 19) no Hoare annotation was computed. [2020-07-28 17:55:23,633 INFO L264 CegarLoopResult]: At program point L15-6(lines 15 19) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse1 (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y))) (or (and .cse0 (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not .cse1) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x))) (and .cse0 (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse1 (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))) [2020-07-28 17:55:23,633 INFO L268 CegarLoopResult]: For program point L15-7(lines 12 33) no Hoare annotation was computed. [2020-07-28 17:55:23,633 INFO L264 CegarLoopResult]: At program point L32(lines 12 33) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse2 (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (.cse1 (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 (= ULTIMATE.start_fmin_float_~x (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) .cse1 (not (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|)) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start_main_~x~0 ULTIMATE.start_fmin_float_~x) (not .cse2) (= ULTIMATE.start_fmin_float_~x ULTIMATE.start___fpclassify_float_~x)) (and .cse0 (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse2 (not .cse1) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))) [2020-07-28 17:55:23,633 INFO L268 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-07-28 17:55:23,634 INFO L264 CegarLoopResult]: At program point L32-1(lines 12 33) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse1 (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x)) (.cse2 (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))) (.cse3 (= (_ bv0 32) |ULTIMATE.start___fpclassify_float_#res|))) (or (and .cse0 .cse1 .cse2 (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) .cse3 (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x))) (and .cse0 .cse1 .cse2 (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) (not .cse3) (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_main_~y~0) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))))) [2020-07-28 17:55:23,634 INFO L264 CegarLoopResult]: At program point L57(line 57) the Hoare annotation is: (let ((.cse0 (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not .cse0)))) [2020-07-28 17:55:23,634 INFO L264 CegarLoopResult]: At program point L57-1(line 57) the Hoare annotation is: (and |ULTIMATE.start_main_#t~short11| (let ((.cse0 (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not .cse0)) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) [2020-07-28 17:55:23,634 INFO L268 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 75) no Hoare annotation was computed. [2020-07-28 17:55:23,634 INFO L264 CegarLoopResult]: At program point L57-2(line 57) the Hoare annotation is: (let ((.cse1 (not |ULTIMATE.start_main_#t~short15|)) (.cse2 (not |ULTIMATE.start_main_#t~short11|)) (.cse0 (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (or (and .cse0 .cse1 .cse2 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) .cse1 (not (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0)) .cse2 (not .cse0)))) [2020-07-28 17:55:23,634 INFO L264 CegarLoopResult]: At program point L57-3(line 57) the Hoare annotation is: (and (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0) (not |ULTIMATE.start_main_#t~short15|) (not |ULTIMATE.start_main_#t~short11|) (let ((.cse0 (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0))) (or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not .cse0)) (and .cse0 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)))) |ULTIMATE.start_main_#t~short14|) [2020-07-28 17:55:23,635 INFO L264 CegarLoopResult]: At program point L57-4(line 57) the Hoare annotation is: (let ((.cse1 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse2 (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|)) (.cse3 (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0)))) (or (and .cse0 (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x) (fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_fmin_float_~y .cse1) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse2 .cse3 (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)) (and (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0) .cse0 (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)) (not (fp.eq .cse1 .cse1))) (and .cse0 (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|) .cse2 .cse3 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0)))) [2020-07-28 17:55:23,635 INFO L264 CegarLoopResult]: At program point L57-5(line 57) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse1 (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (.cse2 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|))) (or (and .cse0 |ULTIMATE.start_main_#t~short19| (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|) .cse1 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~res~0) .cse2) (and .cse0 (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x) |ULTIMATE.start_main_#t~short19| (fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_fmin_float_~y (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0))) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse1 .cse2 (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)))) [2020-07-28 17:55:23,635 INFO L264 CegarLoopResult]: At program point L57-6(line 57) the Hoare annotation is: (or (and (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (and (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)) (not (let ((.cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))) (fp.eq .cse0 .cse0))))) [2020-07-28 17:55:23,635 INFO L264 CegarLoopResult]: At program point L57-7(line 57) the Hoare annotation is: (and (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0) (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (fp.eq ULTIMATE.start_main_~res~0 ULTIMATE.start_main_~x~0) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)) (not (let ((.cse0 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))) (fp.eq .cse0 .cse0)))) [2020-07-28 17:55:23,635 INFO L268 CegarLoopResult]: For program point L74(line 74) no Hoare annotation was computed. [2020-07-28 17:55:23,635 INFO L268 CegarLoopResult]: For program point L41(line 41) no Hoare annotation was computed. [2020-07-28 17:55:23,636 INFO L268 CegarLoopResult]: For program point L74-2(lines 74 77) no Hoare annotation was computed. [2020-07-28 17:55:23,636 INFO L268 CegarLoopResult]: For program point L41-2(line 41) no Hoare annotation was computed. [2020-07-28 17:55:23,636 INFO L264 CegarLoopResult]: At program point L41-3(lines 35 42) the Hoare annotation is: (let ((.cse1 (not (fp.eq ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~x~0))) (.cse0 (= ULTIMATE.start_main_~y~0 ULTIMATE.start_fmin_float_~y)) (.cse2 (fp ((_ extract 31 31) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 30 23) ULTIMATE.start___fpclassify_float_~w~0) ((_ extract 22 0) ULTIMATE.start___fpclassify_float_~w~0)))) (or (and .cse0 (fp.eq ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~y~0) (= ULTIMATE.start_main_~y~0 |ULTIMATE.start_fmin_float_#res|) .cse1 (= (_ bv0 32) |ULTIMATE.start_isnan_float_#res|)) (and .cse0 (= ULTIMATE.start_fmin_float_~y ULTIMATE.start___fpclassify_float_~x) (= ULTIMATE.start_fmin_float_~y .cse2) (not (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_fmin_float_~x)) .cse1 (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~y~0)) (and (fp.eq |ULTIMATE.start_fmin_float_#res| ULTIMATE.start_main_~x~0) .cse0 (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (not (fp.eq ULTIMATE.start_fmin_float_~y ULTIMATE.start_fmin_float_~y)) (fp.eq ULTIMATE.start_fmin_float_~x ULTIMATE.start_main_~x~0) (not (fp.eq ULTIMATE.start___fpclassify_float_~x ULTIMATE.start___fpclassify_float_~x)) (not (fp.eq .cse2 .cse2))))) [2020-07-28 17:55:23,636 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-07-28 17:55:23,636 INFO L268 CegarLoopResult]: For program point L75(line 75) no Hoare annotation was computed. [2020-07-28 17:55:23,636 INFO L268 CegarLoopResult]: For program point L26(lines 26 32) no Hoare annotation was computed. [2020-07-28 17:55:23,637 INFO L268 CegarLoopResult]: For program point L26-1(lines 26 32) no Hoare annotation was computed. [2020-07-28 17:55:23,637 INFO L268 CegarLoopResult]: For program point L68(line 68) no Hoare annotation was computed. [2020-07-28 17:55:23,637 INFO L268 CegarLoopResult]: For program point L68-2(line 68) no Hoare annotation was computed. [2020-07-28 17:55:23,641 WARN L170 areAnnotationChecker]: ULTIMATE.startENTRY has no Hoare annotation [2020-07-28 17:55:23,641 WARN L170 areAnnotationChecker]: L-1 has no Hoare annotation [2020-07-28 17:55:23,641 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:55:23,641 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-2 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-2 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-3 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-3 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-5 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-5 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L68-7 has no Hoare annotation [2020-07-28 17:55:23,642 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L69 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L15-1 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L15-3 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L69-2 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: L23 has no Hoare annotation [2020-07-28 17:55:23,643 WARN L170 areAnnotationChecker]: ULTIMATE.startFINAL has no Hoare annotation [2020-07-28 17:55:23,644 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:55:23,644 WARN L170 areAnnotationChecker]: L36 has no Hoare annotation [2020-07-28 17:55:23,644 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:55:23,644 WARN L170 areAnnotationChecker]: L26 has no Hoare annotation [2020-07-28 17:55:23,648 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 17:55:23,648 WARN L170 areAnnotationChecker]: L15-7 has no Hoare annotation [2020-07-28 17:55:23,648 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:55:23,648 WARN L170 areAnnotationChecker]: L29 has no Hoare annotation [2020-07-28 17:55:23,648 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L15-5 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L15-7 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L15-7 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L74 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L23-1 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:55:23,649 WARN L170 areAnnotationChecker]: L74-2 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L38 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L26-1 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L75 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L41 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L29-1 has no Hoare annotation [2020-07-28 17:55:23,650 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L80 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L41-2 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L80-2 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-28 17:55:23,651 WARN L170 areAnnotationChecker]: L81 has no Hoare annotation [2020-07-28 17:55:23,651 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 17:55:23,704 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 05:55:23 BoogieIcfgContainer [2020-07-28 17:55:23,705 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 17:55:23,706 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 17:55:23,706 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 17:55:23,706 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 17:55:23,707 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 05:54:22" (3/4) ... [2020-07-28 17:55:23,716 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 17:55:23,735 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 20 nodes and edges [2020-07-28 17:55:23,736 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-07-28 17:55:23,737 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 17:55:23,771 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (~fp.eq~FLOAT(x, x) && 0bv32 == \result) || (1bv32 == \result && !~fp.eq~FLOAT(x, x)) [2020-07-28 17:55:23,771 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (aux-isnan_float(x) && !isnan_float(y)-aux && ((1bv32 == \result && !~fp.eq~FLOAT(y, y)) || (~fp.eq~FLOAT(y, y) && 0bv32 == \result))) && !~fp.eq~FLOAT(x, x) [2020-07-28 17:55:23,772 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.eq~FLOAT(x, x) && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !aux-isnan_float(x) && !isnan_float(y)-aux) && 0bv32 == \result) || ((((1bv32 == \result && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !~fp.eq~FLOAT(y, y)) && !aux-isnan_float(x) && !isnan_float(y)-aux) && !~fp.eq~FLOAT(x, x)) [2020-07-28 17:55:23,772 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((~fp.eq~FLOAT(x, x) && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !aux-isnan_float(x) && !isnan_float(y)-aux) && ((1bv32 == \result && !~fp.eq~FLOAT(y, y)) || (~fp.eq~FLOAT(y, y) && 0bv32 == \result))) && aux-!isnan_float(x) && isnan_float(y)-aux [2020-07-28 17:55:23,773 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((y == y && 1bv32 == \result) && x == x) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && x == x) || ((((y == y && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) [2020-07-28 17:55:23,773 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((((y == y && x == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.eq~FLOAT(x, x)) && !(0bv32 == \result)) && 1bv32 == \result) && x == x) && !~fp.eq~FLOAT(y, y)) && x == x) || ((((y == y && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) [2020-07-28 17:55:23,773 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((((y == y && ~fp.eq~FLOAT(y, y)) && y == \result) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) || (((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(\result, y))) || ((((((~fp.eq~FLOAT(\result, x) && y == y) && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) [2020-07-28 17:55:23,774 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((y == y && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) || (((((y == y && y == x) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) [2020-07-28 17:55:23,774 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((((y == y && y == x) && ~fp.eq~FLOAT(res, y)) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && 1bv32 == \result) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(\result, y)) || (((((((~fp.eq~FLOAT(\result, x) && y == y) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])))) || (((((y == y && ~fp.eq~FLOAT(y, y)) && y == \result) && 1bv32 == \result) && !~fp.eq~FLOAT(x, x)) && y == res) [2020-07-28 17:55:23,774 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && 1bv32 == \result) && 0bv32 == \result) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) || ((((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !(0bv32 == \result)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) [2020-07-28 17:55:23,775 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((y == y && aux-isnan_float(x) && !isnan_float(y)-aux) && ~fp.eq~FLOAT(y, y)) && y == \result) && !~fp.eq~FLOAT(x, x)) && y == res) && 0bv32 == \result) || ((((((((y == y && y == x) && aux-isnan_float(x) && !isnan_float(y)-aux) && ~fp.eq~FLOAT(res, y)) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && ~fp.eq~FLOAT(\result, y)) [2020-07-28 17:55:23,775 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (1bv32 == \result && !~fp.eq~FLOAT(x, x)) || (((((((~fp.eq~FLOAT(\result, x) && y == y) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) [2020-07-28 17:55:23,776 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((((((~fp.eq~FLOAT(\result, x) && y == y) && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) [2020-07-28 17:55:23,807 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 17:55:23,808 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 17:55:23,810 INFO L168 Benchmark]: Toolchain (without parser) took 62537.44 ms. Allocated memory was 1.0 GB in the beginning and 1.4 GB in the end (delta: 403.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -183.9 MB). Peak memory consumption was 219.3 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,810 INFO L168 Benchmark]: CDTParser took 0.22 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 17:55:23,811 INFO L168 Benchmark]: CACSL2BoogieTranslator took 401.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,811 INFO L168 Benchmark]: Boogie Procedure Inliner took 138.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -110.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,812 INFO L168 Benchmark]: Boogie Preprocessor took 45.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 17:55:23,812 INFO L168 Benchmark]: RCFGBuilder took 704.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,813 INFO L168 Benchmark]: TraceAbstraction took 61136.32 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 335.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.9 MB). Peak memory consumption was 192.1 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,813 INFO L168 Benchmark]: Witness Printer took 102.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. [2020-07-28 17:55:23,815 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 0.22 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 401.43 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 944.1 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 138.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 68.2 MB). Free memory was 944.1 MB in the beginning and 1.1 GB in the end (delta: -110.8 MB). Peak memory consumption was 9.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.95 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 704.51 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 40.7 MB). Peak memory consumption was 40.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 61136.32 ms. Allocated memory was 1.1 GB in the beginning and 1.4 GB in the end (delta: 335.0 MB). Free memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: -142.9 MB). Peak memory consumption was 192.1 MB. Max. memory is 11.5 GB. * Witness Printer took 102.15 ms. Allocated memory is still 1.4 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 13.0 MB). Peak memory consumption was 13.0 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 81]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 75]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 2 specifications checked. All of them hold - InvariantResult [Line: 35]: Loop Invariant Derived loop invariant: (((((y == y && ~fp.eq~FLOAT(y, y)) && y == \result) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) || (((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(\result, y))) || ((((((~fp.eq~FLOAT(\result, x) && y == y) && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((~fp.eq~FLOAT(\result, x) && y == y) && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (1bv32 == \result && !~fp.eq~FLOAT(x, x)) || (((((((~fp.eq~FLOAT(\result, x) && y == y) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]))) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: ((((y == y && 1bv32 == \result) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) || (((((y == y && y == x) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((y == y && aux-isnan_float(x) && !isnan_float(y)-aux) && ~fp.eq~FLOAT(y, y)) && y == \result) && !~fp.eq~FLOAT(x, x)) && y == res) && 0bv32 == \result) || ((((((((y == y && y == x) && aux-isnan_float(x) && !isnan_float(y)-aux) && ~fp.eq~FLOAT(res, y)) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && ~fp.eq~FLOAT(\result, y)) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: ((((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && 1bv32 == \result) && 0bv32 == \result) && ~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(x, x)) || ((((((y == y && y == x) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && !(0bv32 == \result)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: ((((((((y == y && y == x) && ~fp.eq~FLOAT(res, y)) && y == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && !~fp.eq~FLOAT(x, x)) && 1bv32 == \result) && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(\result, y)) || (((((((~fp.eq~FLOAT(\result, x) && y == y) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(res, x)) && ~fp.eq~FLOAT(x, x)) && 0bv32 == \result) && !~fp.eq~FLOAT(x, x)) && !~fp.eq~FLOAT(~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0]), ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])))) || (((((y == y && ~fp.eq~FLOAT(y, y)) && y == \result) && 1bv32 == \result) && !~fp.eq~FLOAT(x, x)) && y == res) - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: (((((((y == y && x == ~fp~LONGDOUBLE(w[31:31], w[30:23], w[22:0])) && ~fp.eq~FLOAT(x, x)) && !(0bv32 == \result)) && 1bv32 == \result) && x == x) && !~fp.eq~FLOAT(y, y)) && x == x) || ((((y == y && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) - InvariantResult [Line: 59]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (((~fp.eq~FLOAT(x, x) && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !aux-isnan_float(x) && !isnan_float(y)-aux) && ((1bv32 == \result && !~fp.eq~FLOAT(y, y)) || (~fp.eq~FLOAT(y, y) && 0bv32 == \result))) && aux-!isnan_float(x) && isnan_float(y)-aux - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (((~fp.eq~FLOAT(x, x) && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !aux-isnan_float(x) && !isnan_float(y)-aux) && 0bv32 == \result) || ((((1bv32 == \result && !aux-(isnan_float(x) && !isnan_float(y)) || (!isnan_float(x) && isnan_float(y))-aux) && !~fp.eq~FLOAT(y, y)) && !aux-isnan_float(x) && !isnan_float(y)-aux) && !~fp.eq~FLOAT(x, x)) - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: (((((y == y && 1bv32 == \result) && x == x) && !~fp.eq~FLOAT(y, y)) && ~fp.eq~FLOAT(x, x)) && x == x) || ((((y == y && !~fp.eq~FLOAT(x, x)) && ~fp.eq~FLOAT(y, y)) && !~fp.eq~FLOAT(x, x)) && 0bv32 == \result) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (aux-isnan_float(x) && !isnan_float(y)-aux && ((1bv32 == \result && !~fp.eq~FLOAT(y, y)) || (~fp.eq~FLOAT(y, y) && 0bv32 == \result))) && !~fp.eq~FLOAT(x, x) - InvariantResult [Line: 57]: Loop Invariant Derived loop invariant: (~fp.eq~FLOAT(x, x) && 0bv32 == \result) || (1bv32 == \result && !~fp.eq~FLOAT(x, x)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 47 locations, 2 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 54.9s, OverallIterations: 19, TraceHistogramMax: 1, AutomataDifference: 39.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 6.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1146 SDtfs, 2473 SDslu, 4660 SDs, 0 SdLazy, 2002 SolverSat, 268 SolverUnsat, 1 SolverUnknown, 0 SolverNotchecked, 12.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 1045 GetRequests, 769 SyntacticMatches, 11 SemanticMatches, 265 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 939 ImplicationChecksByTransitivity, 9.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=93occurred in iteration=7, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.0s AutomataMinimizationTime, 19 MinimizatonAttempts, 578 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 14 LocationsWithAnnotation, 14 PreInvPairs, 48 NumberOfFragments, 605 HoareAnnotationTreeSize, 14 FomulaSimplifications, 601236 FormulaSimplificationTreeSizeReduction, 0.7s HoareSimplificationTime, 14 FomulaSimplificationsInter, 63026 FormulaSimplificationTreeSizeReductionInter, 5.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.7s SatisfiabilityAnalysisTime, 6.7s InterpolantComputationTime, 479 NumberOfCodeBlocks, 479 NumberOfCodeBlocksAsserted, 19 NumberOfCheckSat, 920 ConstructedInterpolants, 32 QuantifiedInterpolants, 94762 SizeOfPredicates, 147 NumberOfNonLiveVariables, 1413 ConjunctsInSsa, 188 ConjunctsInUnsatCore, 38 InterpolantComputations, 38 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...