./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.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 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 .............................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -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 /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.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 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:04:04,310 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:04:04,312 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:04:04,324 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:04:04,324 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:04:04,325 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:04:04,326 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:04:04,328 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:04:04,330 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:04:04,331 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:04:04,332 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:04:04,332 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:04:04,333 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:04:04,334 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:04:04,335 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:04:04,336 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:04:04,337 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:04:04,339 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:04:04,341 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:04:04,343 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:04:04,346 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:04:04,348 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:04:04,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:04:04,354 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:04:04,354 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:04:04,358 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:04:04,361 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:04:04,364 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:04:04,365 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:04:04,366 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:04:04,366 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:04:04,367 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:04:04,367 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:04:04,367 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:04:04,368 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:04:04,369 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:04:04,369 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:04:04,391 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:04:04,392 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:04:04,393 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:04:04,393 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:04:04,393 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:04:04,394 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:04:04,394 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:04:04,394 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:04:04,394 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:04:04,394 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:04:04,395 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:04:04,395 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:04:04,395 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:04:04,395 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:04:04,395 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:04:04,396 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:04:04,396 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:04:04,396 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:04:04,396 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:04:04,396 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:04:04,397 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:04:04,397 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:04:04,397 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:04:04,397 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:04,397 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:04:04,398 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:04:04,398 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:04:04,398 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:04:04,398 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:04:04,398 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:04:04,399 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 [2018-11-28 18:04:04,442 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:04:04,458 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:04:04,464 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:04:04,466 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:04:04,467 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:04:04,467 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:04,538 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91fbac16/547b8a697c764d6faffe94912add9929/FLAG507ad6d22 [2018-11-28 18:04:05,056 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:04:05,057 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:05,066 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91fbac16/547b8a697c764d6faffe94912add9929/FLAG507ad6d22 [2018-11-28 18:04:05,387 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d91fbac16/547b8a697c764d6faffe94912add9929 [2018-11-28 18:04:05,391 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:04:05,392 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:04:05,393 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:05,393 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:04:05,397 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:04:05,398 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,402 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@45e4abf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05, skipping insertion in model container [2018-11-28 18:04:05,403 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:04:05,434 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:04:05,689 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:05,708 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:04:05,750 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:05,769 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:04:05,769 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05 WrapperNode [2018-11-28 18:04:05,769 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:05,770 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:05,770 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:04:05,770 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:04:05,778 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,789 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,797 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:05,798 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:04:05,798 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:04:05,798 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:04:05,807 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,807 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,811 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,812 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,896 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,905 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,907 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (1/1) ... [2018-11-28 18:04:05,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:04:05,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:04:05,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:04:05,912 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:04:05,913 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (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 [2018-11-28 18:04:05,970 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:04:05,970 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:04:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-11-28 18:04:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-11-28 18:04:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 18:04:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 18:04:05,971 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:04:05,971 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:04:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:04:05,972 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:04:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 18:04:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:04:05,972 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:04:05,973 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:04:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2018-11-28 18:04:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 18:04:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:04:05,973 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:04:05,973 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:04:06,735 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:04:06,736 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 18:04:06,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:06 BoogieIcfgContainer [2018-11-28 18:04:06,737 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:04:06,738 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:04:06,738 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:04:06,742 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:04:06,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:04:05" (1/3) ... [2018-11-28 18:04:06,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dd82ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:06, skipping insertion in model container [2018-11-28 18:04:06,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:05" (2/3) ... [2018-11-28 18:04:06,744 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78dd82ff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:06, skipping insertion in model container [2018-11-28 18:04:06,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:06" (3/3) ... [2018-11-28 18:04:06,749 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:06,759 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:04:06,767 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:04:06,782 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:04:06,812 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:04:06,813 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:04:06,813 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:04:06,813 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:04:06,814 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:04:06,814 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:04:06,814 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:04:06,814 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:04:06,814 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:04:06,833 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 18:04:06,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 18:04:06,839 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:06,840 INFO L402 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] [2018-11-28 18:04:06,842 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:06,849 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:06,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1328912444, now seen corresponding path program 1 times [2018-11-28 18:04:06,851 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:06,852 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:06,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:06,896 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:06,896 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:06,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:07,001 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:07,004 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:07,006 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:04:07,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:04:07,032 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:04:07,032 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:07,036 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-28 18:04:07,066 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:07,067 INFO L93 Difference]: Finished difference Result 110 states and 158 transitions. [2018-11-28 18:04:07,067 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:04:07,068 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-11-28 18:04:07,069 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:07,079 INFO L225 Difference]: With dead ends: 110 [2018-11-28 18:04:07,079 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:04:07,083 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:07,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:04:07,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-28 18:04:07,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:04:07,126 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-11-28 18:04:07,128 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 27 [2018-11-28 18:04:07,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:07,128 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-11-28 18:04:07,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:04:07,129 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-11-28 18:04:07,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 18:04:07,130 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:07,131 INFO L402 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] [2018-11-28 18:04:07,131 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:07,131 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:07,131 INFO L82 PathProgramCache]: Analyzing trace with hash -2017954314, now seen corresponding path program 1 times [2018-11-28 18:04:07,132 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:07,132 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:07,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:07,133 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:07,133 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:07,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:07,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:07,292 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:07,292 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:04:07,294 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:04:07,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:04:07,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:07,295 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 3 states. [2018-11-28 18:04:07,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:07,341 INFO L93 Difference]: Finished difference Result 58 states and 61 transitions. [2018-11-28 18:04:07,342 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:04:07,342 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 30 [2018-11-28 18:04:07,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:07,344 INFO L225 Difference]: With dead ends: 58 [2018-11-28 18:04:07,344 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:04:07,345 INFO L631 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 [2018-11-28 18:04:07,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:04:07,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-28 18:04:07,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:04:07,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 58 transitions. [2018-11-28 18:04:07,354 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 58 transitions. Word has length 30 [2018-11-28 18:04:07,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:07,354 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 58 transitions. [2018-11-28 18:04:07,355 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:04:07,355 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 58 transitions. [2018-11-28 18:04:07,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 33 [2018-11-28 18:04:07,356 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:07,356 INFO L402 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] [2018-11-28 18:04:07,357 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:07,357 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:07,357 INFO L82 PathProgramCache]: Analyzing trace with hash 2060718957, now seen corresponding path program 1 times [2018-11-28 18:04:07,357 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:04:07,357 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:04:07,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:07,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:07,359 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:04:07,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:04:07,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 18:04:07,515 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 18:04:07,559 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:04:07 BoogieIcfgContainer [2018-11-28 18:04:07,560 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:04:07,560 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:04:07,560 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:04:07,561 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:04:07,561 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:06" (3/4) ... [2018-11-28 18:04:07,567 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 18:04:07,567 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:04:07,568 INFO L168 Benchmark]: Toolchain (without parser) took 2176.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -120.9 MB). Peak memory consumption was 25.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,571 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:07,572 INFO L168 Benchmark]: CACSL2BoogieTranslator took 376.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,573 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.66 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,574 INFO L168 Benchmark]: Boogie Preprocessor took 113.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,575 INFO L168 Benchmark]: RCFGBuilder took 825.13 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,576 INFO L168 Benchmark]: TraceAbstraction took 822.29 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:07,577 INFO L168 Benchmark]: Witness Printer took 6.94 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. [2018-11-28 18:04:07,582 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 376.85 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.66 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 113.26 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -203.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * RCFGBuilder took 825.13 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: 26.9 MB). Peak memory consumption was 26.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 822.29 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: 39.9 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. * Witness Printer took 6.94 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 110]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 109, overapproximation of someBinaryArithmeticFLOAToperation at line 104, overapproximation of bitwiseAnd at line 93. Possible FailurePath: [L12] static const float one_modf = 1.0; VAL [\old(one_modf)=10737418244, one_modf=1] [L104] float x = 1.0f / 0.0f; [L105] float iptr = __VERIFIER_nondet_float(); [L106] CALL, EXPR modf_float(x, &iptr) VAL [\old(x)=10737418242, iptr={10737418256:0}, one_modf=1] [L15] __int32_t i0, j0; [L16] __uint32_t i; VAL [\old(x)=10737418242, iptr={10737418256:0}, iptr={10737418256:0}, one_modf=1, x=10737418242] [L18] ieee_float_shape_type gf_u; [L19] gf_u.value = (x) [L20] EXPR gf_u.word [L20] (i0) = gf_u.word [L22] j0 = ((i0 >> 23) & 0xff) - 0x7f VAL [\old(x)=10737418242, i0=-2147483648, iptr={10737418256:0}, iptr={10737418256:0}, one_modf=1, x=10737418242] [L23] COND TRUE j0 < 23 VAL [\old(x)=10737418242, i0=-2147483648, iptr={10737418256:0}, iptr={10737418256:0}, j0=-1, one_modf=1, x=10737418242] [L24] COND TRUE j0 < 0 VAL [\old(x)=10737418242, i0=-2147483648, iptr={10737418256:0}, iptr={10737418256:0}, j0=-1, one_modf=1, x=10737418242] [L26] ieee_float_shape_type sf_u; [L27] sf_u.word = (i0 & 0x80000000) [L28] EXPR sf_u.value [L28] (*iptr) = sf_u.value [L30] return x; VAL [\old(x)=10737418242, \result=10737418242, i0=-2147483648, iptr={10737418256:0}, iptr={10737418256:0}, j0=-1, one_modf=1, x=10737418242] [L106] RET, EXPR modf_float(x, &iptr) VAL [iptr={10737418256:0}, modf_float(x, &iptr)=10737418242, one_modf=1, x=10737418242] [L106] float res = modf_float(x, &iptr); [L109] EXPR \read(iptr) VAL [\read(iptr)=10737418254, iptr={10737418256:0}, one_modf=1, res=10737418242, x=10737418242] [L109] CALL, EXPR isinf_float(iptr) VAL [\old(x)=10737418254, one_modf=1] [L87] __int32_t ix; VAL [\old(x)=10737418254, one_modf=1, x=10737418254] [L89] ieee_float_shape_type gf_u; [L90] gf_u.value = (x) [L91] EXPR gf_u.word [L91] (ix) = gf_u.word [L93] ix &= 0x7fffffff [L94] return ((ix) == 0x7f800000L); VAL [\old(x)=10737418254, \result=1, ix=2139095040, one_modf=1, x=10737418254] [L109] RET, EXPR isinf_float(iptr) VAL [\read(iptr)=10737418254, iptr={10737418256:0}, isinf_float(iptr)=1, one_modf=1, res=10737418242, x=10737418242] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L109] EXPR res == 0.0f && __signbit_float(res) == 0 VAL [\read(iptr)=10737418254, iptr={10737418256:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=10737418242, res == 0.0f && __signbit_float(res) == 0=0, x=10737418242] [L109] isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) VAL [\read(iptr)=10737418254, iptr={10737418256:0}, isinf_float(iptr)=1, isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0)=1, one_modf=1, res=10737418242, res == 0.0f && __signbit_float(res) == 0=0, x=10737418242] [L109] COND TRUE isinf_float(iptr) && !(res == 0.0f && __signbit_float(res) == 0) [L110] __VERIFIER_error() VAL [iptr={10737418256:0}, one_modf=1, res=10737418242, x=10737418242] - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. UNSAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 122 SDtfs, 0 SDslu, 54 SDs, 0 SdLazy, 4 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 89 NumberOfCodeBlocks, 89 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 55 ConstructedInterpolants, 0 QuantifiedInterpolants, 1546 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: 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 0.1.24-91b1670 [2018-11-28 18:04:09,967 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:04:09,969 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:04:09,987 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2018-11-28 18:04:10,010 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:04:10,011 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:04:10,012 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:04:10,016 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:04:10,017 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:04:10,018 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:04:10,022 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:04:10,025 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:04:10,029 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:04:10,032 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:04:10,034 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:04:10,039 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:04:10,040 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:04:10,041 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:04:10,042 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:04:10,043 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:04:10,044 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:04:10,047 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:04:10,052 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:04:10,052 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:04:10,054 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:04:10,055 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:04:10,055 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:04:10,056 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:04:10,057 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:04:10,057 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 18:04:10,084 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:04:10,085 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:04:10,086 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:04:10,086 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:04:10,086 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:04:10,087 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:04:10,087 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:04:10,088 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:04:10,088 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:04:10,088 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:04:10,088 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:04:10,088 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:04:10,089 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:04:10,090 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:04:10,090 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:04:10,090 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:04:10,090 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:04:10,090 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:04:10,093 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:04:10,093 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:04:10,093 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:04:10,093 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:04:10,093 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:04:10,094 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 18:04:10,095 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:04:10,095 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 18:04:10,095 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 18:04:10,095 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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 -> 0186804fc9e8cef09b3a1cefd7c260de08abc9c3 [2018-11-28 18:04:10,149 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:04:10,167 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:04:10,172 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:04:10,174 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:04:10,175 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:04:10,176 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:10,251 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895457626/2162cf798651415ba8dca5c0323a8fb9/FLAGcb435d020 [2018-11-28 18:04:10,737 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:04:10,738 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-newlib/float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:10,751 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895457626/2162cf798651415ba8dca5c0323a8fb9/FLAGcb435d020 [2018-11-28 18:04:11,086 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/895457626/2162cf798651415ba8dca5c0323a8fb9 [2018-11-28 18:04:11,090 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:04:11,092 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:04:11,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:11,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:04:11,097 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:04:11,098 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,101 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f15231f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11, skipping insertion in model container [2018-11-28 18:04:11,101 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,110 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:04:11,137 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:04:11,369 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:11,408 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:04:11,468 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:04:11,490 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:04:11,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11 WrapperNode [2018-11-28 18:04:11,490 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:04:11,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:11,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:04:11,492 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:04:11,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,517 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,526 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:04:11,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:04:11,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:04:11,527 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:04:11,537 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,538 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,609 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,609 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,636 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,653 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,661 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (1/1) ... [2018-11-28 18:04:11,667 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:04:11,667 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:04:11,668 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:04:11,668 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:04:11,669 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (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 [2018-11-28 18:04:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2018-11-28 18:04:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:04:11,729 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:04:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2018-11-28 18:04:11,729 INFO L130 BoogieDeclarations]: Found specification of procedure modf_float [2018-11-28 18:04:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure modf_float [2018-11-28 18:04:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure isinf_float [2018-11-28 18:04:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure isinf_float [2018-11-28 18:04:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:04:11,730 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:04:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 18:04:11,730 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 18:04:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:04:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:04:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-11-28 18:04:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure __signbit_float [2018-11-28 18:04:11,731 INFO L138 BoogieDeclarations]: Found implementation of procedure __signbit_float [2018-11-28 18:04:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 18:04:11,731 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 18:04:11,900 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,179 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,254 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,275 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,401 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,420 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,446 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,525 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,548 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,622 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 18:04:12,657 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:04:12,657 INFO L280 CfgBuilder]: Removed 18 assue(true) statements. [2018-11-28 18:04:12,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:12 BoogieIcfgContainer [2018-11-28 18:04:12,658 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:04:12,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:04:12,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:04:12,663 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:04:12,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:04:11" (1/3) ... [2018-11-28 18:04:12,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff4d49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:12, skipping insertion in model container [2018-11-28 18:04:12,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:04:11" (2/3) ... [2018-11-28 18:04:12,665 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3ff4d49c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:04:12, skipping insertion in model container [2018-11-28 18:04:12,665 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:12" (3/3) ... [2018-11-28 18:04:12,667 INFO L112 eAbstractionObserver]: Analyzing ICFG float_req_bl_1211a_true-unreach-call.c [2018-11-28 18:04:12,677 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:04:12,684 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:04:12,704 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:04:12,740 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:04:12,741 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:04:12,741 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:04:12,741 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:04:12,741 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:04:12,741 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:04:12,742 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:04:12,742 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:04:12,742 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:04:12,763 INFO L276 IsEmpty]: Start isEmpty. Operand 59 states. [2018-11-28 18:04:12,771 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 28 [2018-11-28 18:04:12,772 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:12,773 INFO L402 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] [2018-11-28 18:04:12,776 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:12,782 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:12,782 INFO L82 PathProgramCache]: Analyzing trace with hash -1328912444, now seen corresponding path program 1 times [2018-11-28 18:04:12,787 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:12,787 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:04:12,794 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:12,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:12,926 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:12,948 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:12,948 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:12,966 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:12,966 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-28 18:04:12,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-28 18:04:12,986 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-28 18:04:12,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:12,989 INFO L87 Difference]: Start difference. First operand 59 states. Second operand 2 states. [2018-11-28 18:04:13,020 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:13,020 INFO L93 Difference]: Finished difference Result 110 states and 158 transitions. [2018-11-28 18:04:13,021 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-28 18:04:13,022 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 27 [2018-11-28 18:04:13,023 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:13,034 INFO L225 Difference]: With dead ends: 110 [2018-11-28 18:04:13,034 INFO L226 Difference]: Without dead ends: 55 [2018-11-28 18:04:13,038 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-28 18:04:13,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2018-11-28 18:04:13,082 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2018-11-28 18:04:13,084 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 55 states. [2018-11-28 18:04:13,086 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 59 transitions. [2018-11-28 18:04:13,088 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 59 transitions. Word has length 27 [2018-11-28 18:04:13,089 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:13,089 INFO L480 AbstractCegarLoop]: Abstraction has 55 states and 59 transitions. [2018-11-28 18:04:13,089 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-28 18:04:13,089 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 59 transitions. [2018-11-28 18:04:13,091 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 31 [2018-11-28 18:04:13,091 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:13,091 INFO L402 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] [2018-11-28 18:04:13,093 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:13,093 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:13,093 INFO L82 PathProgramCache]: Analyzing trace with hash -2017954314, now seen corresponding path program 1 times [2018-11-28 18:04:13,094 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:13,094 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:04:13,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:13,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:13,174 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:13,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:13,548 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:13,566 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:13,566 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2018-11-28 18:04:13,568 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:04:13,569 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:04:13,570 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:04:13,570 INFO L87 Difference]: Start difference. First operand 55 states and 59 transitions. Second operand 7 states. [2018-11-28 18:04:14,327 WARN L180 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 25 [2018-11-28 18:04:15,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:15,080 INFO L93 Difference]: Finished difference Result 82 states and 87 transitions. [2018-11-28 18:04:15,081 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2018-11-28 18:04:15,081 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 30 [2018-11-28 18:04:15,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:15,083 INFO L225 Difference]: With dead ends: 82 [2018-11-28 18:04:15,083 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:04:15,086 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2018-11-28 18:04:15,086 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:04:15,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 18:04:15,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 18:04:15,098 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 43 transitions. [2018-11-28 18:04:15,098 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 43 transitions. Word has length 30 [2018-11-28 18:04:15,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:15,102 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 43 transitions. [2018-11-28 18:04:15,102 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:04:15,102 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 43 transitions. [2018-11-28 18:04:15,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2018-11-28 18:04:15,105 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:15,105 INFO L402 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] [2018-11-28 18:04:15,106 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:15,106 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:15,107 INFO L82 PathProgramCache]: Analyzing trace with hash -1555916386, now seen corresponding path program 1 times [2018-11-28 18:04:15,107 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:15,107 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:04:15,121 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:15,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:15,276 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:15,299 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:15,299 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:15,316 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:15,316 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 18:04:15,317 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 18:04:15,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 18:04:15,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:15,319 INFO L87 Difference]: Start difference. First operand 42 states and 43 transitions. Second operand 3 states. [2018-11-28 18:04:15,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:15,337 INFO L93 Difference]: Finished difference Result 45 states and 45 transitions. [2018-11-28 18:04:15,337 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 18:04:15,338 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 31 [2018-11-28 18:04:15,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:15,339 INFO L225 Difference]: With dead ends: 45 [2018-11-28 18:04:15,339 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:04:15,340 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 18:04:15,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:04:15,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 18:04:15,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 18:04:15,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 42 transitions. [2018-11-28 18:04:15,350 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 42 transitions. Word has length 31 [2018-11-28 18:04:15,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:15,351 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 42 transitions. [2018-11-28 18:04:15,351 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 18:04:15,352 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 42 transitions. [2018-11-28 18:04:15,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2018-11-28 18:04:15,353 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:15,353 INFO L402 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] [2018-11-28 18:04:15,353 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:15,354 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:15,354 INFO L82 PathProgramCache]: Analyzing trace with hash -597431019, now seen corresponding path program 1 times [2018-11-28 18:04:15,354 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:15,354 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:04:15,359 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:15,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:15,506 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:16,107 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:16,107 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:16,123 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:16,123 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2018-11-28 18:04:16,123 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2018-11-28 18:04:16,124 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2018-11-28 18:04:16,124 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2018-11-28 18:04:16,124 INFO L87 Difference]: Start difference. First operand 42 states and 42 transitions. Second operand 10 states. [2018-11-28 18:04:17,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:17,315 INFO L93 Difference]: Finished difference Result 46 states and 45 transitions. [2018-11-28 18:04:17,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2018-11-28 18:04:17,315 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 33 [2018-11-28 18:04:17,316 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:17,317 INFO L225 Difference]: With dead ends: 46 [2018-11-28 18:04:17,317 INFO L226 Difference]: Without dead ends: 42 [2018-11-28 18:04:17,318 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=45, Invalid=195, Unknown=0, NotChecked=0, Total=240 [2018-11-28 18:04:17,319 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2018-11-28 18:04:17,325 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2018-11-28 18:04:17,325 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2018-11-28 18:04:17,326 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 41 transitions. [2018-11-28 18:04:17,326 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 41 transitions. Word has length 33 [2018-11-28 18:04:17,326 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:17,327 INFO L480 AbstractCegarLoop]: Abstraction has 42 states and 41 transitions. [2018-11-28 18:04:17,327 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2018-11-28 18:04:17,327 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 41 transitions. [2018-11-28 18:04:17,328 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2018-11-28 18:04:17,328 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:04:17,328 INFO L402 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, 1, 1, 1, 1, 1, 1] [2018-11-28 18:04:17,329 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:04:17,329 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:04:17,329 INFO L82 PathProgramCache]: Analyzing trace with hash -1539485821, now seen corresponding path program 1 times [2018-11-28 18:04:17,330 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 18:04:17,330 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy 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 [2018-11-28 18:04:17,336 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:04:17,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:04:17,488 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:04:18,076 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:04:18,076 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 18:04:18,089 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:04:18,089 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2018-11-28 18:04:18,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2018-11-28 18:04:18,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2018-11-28 18:04:18,090 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=183, Unknown=0, NotChecked=0, Total=210 [2018-11-28 18:04:18,090 INFO L87 Difference]: Start difference. First operand 42 states and 41 transitions. Second operand 15 states. [2018-11-28 18:04:19,889 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:04:19,889 INFO L93 Difference]: Finished difference Result 42 states and 41 transitions. [2018-11-28 18:04:19,889 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2018-11-28 18:04:19,890 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 41 [2018-11-28 18:04:19,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:04:19,890 INFO L225 Difference]: With dead ends: 42 [2018-11-28 18:04:19,891 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:04:19,893 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=83, Invalid=517, Unknown=0, NotChecked=0, Total=600 [2018-11-28 18:04:19,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:04:19,893 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:04:19,893 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:04:19,894 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:04:19,895 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 41 [2018-11-28 18:04:19,895 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:04:19,895 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:04:19,895 INFO L481 AbstractCegarLoop]: Interpolant automaton has 15 states. [2018-11-28 18:04:19,895 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:04:19,895 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:04:19,902 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:04:20,290 INFO L448 ceAbstractionStarter]: For program point L88-1(lines 88 92) no Hoare annotation was computed. [2018-11-28 18:04:20,291 INFO L451 ceAbstractionStarter]: At program point L88-2(lines 88 92) the Hoare annotation is: true [2018-11-28 18:04:20,291 INFO L448 ceAbstractionStarter]: For program point L88-3(lines 88 92) no Hoare annotation was computed. [2018-11-28 18:04:20,291 INFO L451 ceAbstractionStarter]: At program point isinf_floatENTRY(lines 86 95) the Hoare annotation is: true [2018-11-28 18:04:20,291 INFO L448 ceAbstractionStarter]: For program point isinf_floatEXIT(lines 86 95) no Hoare annotation was computed. [2018-11-28 18:04:20,291 INFO L448 ceAbstractionStarter]: For program point isinf_floatFINAL(lines 86 95) no Hoare annotation was computed. [2018-11-28 18:04:20,291 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:04:20,291 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:04:20,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:04:20,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:04:20,292 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:04:20,292 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:04:20,292 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:04:20,292 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 97 115) no Hoare annotation was computed. [2018-11-28 18:04:20,292 INFO L448 ceAbstractionStarter]: For program point L110(line 110) no Hoare annotation was computed. [2018-11-28 18:04:20,293 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 110) no Hoare annotation was computed. [2018-11-28 18:04:20,293 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 97 115) no Hoare annotation was computed. [2018-11-28 18:04:20,293 INFO L444 ceAbstractionStarter]: At program point L106(line 106) the Hoare annotation is: (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) [2018-11-28 18:04:20,293 INFO L448 ceAbstractionStarter]: For program point L106-1(line 106) no Hoare annotation was computed. [2018-11-28 18:04:20,293 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 97 115) the Hoare annotation is: true [2018-11-28 18:04:20,294 INFO L444 ceAbstractionStarter]: At program point L109(line 109) the Hoare annotation is: (and (exists ((modf_float_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) modf_float_~ix~1) ((_ extract 30 23) modf_float_~ix~1) ((_ extract 22 0) modf_float_~ix~1)) (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (= (let ((.cse0 (bvand (_ bv2147483648 32) modf_float_~ix~1))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0))) (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24)))) [2018-11-28 18:04:20,294 INFO L448 ceAbstractionStarter]: For program point L109-1(line 109) no Hoare annotation was computed. [2018-11-28 18:04:20,294 INFO L448 ceAbstractionStarter]: For program point L109-2(line 109) no Hoare annotation was computed. [2018-11-28 18:04:20,294 INFO L448 ceAbstractionStarter]: For program point L109-3(line 109) no Hoare annotation was computed. [2018-11-28 18:04:20,294 INFO L444 ceAbstractionStarter]: At program point L109-4(line 109) the Hoare annotation is: (and (exists ((modf_float_~ix~1 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) modf_float_~ix~1) ((_ extract 30 23) modf_float_~ix~1) ((_ extract 22 0) modf_float_~ix~1)) (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) (= (let ((.cse0 (bvand (_ bv2147483648 32) modf_float_~ix~1))) (fp ((_ extract 31 31) .cse0) ((_ extract 30 23) .cse0) ((_ extract 22 0) .cse0))) main_~res~0))) (= main_~x~0 (fp.div roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven 1.0) (_ +zero 8 24))) |main_#t~short22|) [2018-11-28 18:04:20,294 INFO L448 ceAbstractionStarter]: For program point L109-5(line 109) no Hoare annotation was computed. [2018-11-28 18:04:20,294 INFO L448 ceAbstractionStarter]: For program point L109-7(line 109) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L109-9(lines 109 112) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L64(lines 64 68) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L64-1(lines 56 70) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L64-2(lines 64 68) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L23(lines 23 70) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point modf_floatEXIT(lines 14 71) no Hoare annotation was computed. [2018-11-28 18:04:20,295 INFO L448 ceAbstractionStarter]: For program point L48-1(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:04:20,296 INFO L444 ceAbstractionStarter]: At program point L48-2(lines 48 52) the Hoare annotation is: (and (= modf_float_~x |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (= (bvadd modf_float_~j0~0 (_ bv127 32)) (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32)))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (bvslt (bvadd (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32))) (_ bv4294967169 32)) (_ bv23 32)) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|)))) [2018-11-28 18:04:20,296 INFO L448 ceAbstractionStarter]: For program point L48-3(lines 48 52) no Hoare annotation was computed. [2018-11-28 18:04:20,296 INFO L448 ceAbstractionStarter]: For program point L36-1(lines 36 40) no Hoare annotation was computed. [2018-11-28 18:04:20,296 INFO L444 ceAbstractionStarter]: At program point L36-2(lines 36 40) the Hoare annotation is: (and (= modf_float_~x |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (= (bvadd modf_float_~j0~0 (_ bv127 32)) (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32)))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (bvslt (bvadd (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32))) (_ bv4294967169 32)) (_ bv23 32)) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|)))) [2018-11-28 18:04:20,296 INFO L448 ceAbstractionStarter]: For program point L24(lines 24 55) no Hoare annotation was computed. [2018-11-28 18:04:20,296 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 45) no Hoare annotation was computed. [2018-11-28 18:04:20,297 INFO L448 ceAbstractionStarter]: For program point L41-1(lines 33 47) no Hoare annotation was computed. [2018-11-28 18:04:20,297 INFO L448 ceAbstractionStarter]: For program point L41-2(lines 41 45) no Hoare annotation was computed. [2018-11-28 18:04:20,297 INFO L448 ceAbstractionStarter]: For program point L33(lines 33 54) no Hoare annotation was computed. [2018-11-28 18:04:20,297 INFO L448 ceAbstractionStarter]: For program point L25-1(lines 25 29) no Hoare annotation was computed. [2018-11-28 18:04:20,297 INFO L444 ceAbstractionStarter]: At program point L25-2(lines 25 29) the Hoare annotation is: (and (= modf_float_~x |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (= (bvadd modf_float_~j0~0 (_ bv127 32)) (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32)))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (bvslt (bvadd (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32))) (_ bv4294967169 32)) (_ bv23 32)) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|)))) [2018-11-28 18:04:20,297 INFO L448 ceAbstractionStarter]: For program point L25-3(lines 25 29) no Hoare annotation was computed. [2018-11-28 18:04:20,298 INFO L448 ceAbstractionStarter]: For program point L17-1(lines 17 21) no Hoare annotation was computed. [2018-11-28 18:04:20,298 INFO L444 ceAbstractionStarter]: At program point L17-2(lines 17 21) the Hoare annotation is: (= modf_float_~x |modf_float_#in~x|) [2018-11-28 18:04:20,298 INFO L448 ceAbstractionStarter]: For program point L17-3(lines 17 21) no Hoare annotation was computed. [2018-11-28 18:04:20,298 INFO L448 ceAbstractionStarter]: For program point L59-1(lines 59 63) no Hoare annotation was computed. [2018-11-28 18:04:20,298 INFO L444 ceAbstractionStarter]: At program point L59-2(lines 59 63) the Hoare annotation is: (and (= modf_float_~x |modf_float_#in~x|) (exists ((modf_float_~i0~0 (_ BitVec 32))) (and (= (bvadd modf_float_~j0~0 (_ bv127 32)) (bvand (_ bv255 32) (bvashr modf_float_~i0~0 (_ bv23 32)))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|))) (= (fp ((_ extract 31 31) modf_float_~i0~0) ((_ extract 30 23) modf_float_~i0~0) ((_ extract 22 0) modf_float_~i0~0)) |modf_float_#in~x|)) [2018-11-28 18:04:20,298 INFO L451 ceAbstractionStarter]: At program point modf_floatENTRY(lines 14 71) the Hoare annotation is: true [2018-11-28 18:04:20,299 INFO L448 ceAbstractionStarter]: For program point modf_floatFINAL(lines 14 71) no Hoare annotation was computed. [2018-11-28 18:04:20,299 INFO L448 ceAbstractionStarter]: For program point __signbit_floatFINAL(lines 73 83) no Hoare annotation was computed. [2018-11-28 18:04:20,299 INFO L451 ceAbstractionStarter]: At program point __signbit_floatENTRY(lines 73 83) the Hoare annotation is: true [2018-11-28 18:04:20,299 INFO L448 ceAbstractionStarter]: For program point __signbit_floatEXIT(lines 73 83) no Hoare annotation was computed. [2018-11-28 18:04:20,299 INFO L448 ceAbstractionStarter]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2018-11-28 18:04:20,299 INFO L444 ceAbstractionStarter]: At program point L76-2(lines 76 80) the Hoare annotation is: (= |__signbit_float_#in~x| __signbit_float_~x) [2018-11-28 18:04:20,299 INFO L448 ceAbstractionStarter]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2018-11-28 18:04:20,314 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,315 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,315 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,316 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,317 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,318 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,318 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,318 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,319 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,319 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,319 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,319 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,319 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,320 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,321 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,321 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,321 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,322 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,322 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,322 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,323 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,323 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,324 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,324 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,324 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,324 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,325 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,325 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,325 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,326 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,326 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,326 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,327 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,328 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,329 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,329 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,329 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,330 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,330 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,330 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,331 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,331 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,336 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,337 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,338 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,338 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,340 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:04:20 BoogieIcfgContainer [2018-11-28 18:04:20,341 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:04:20,341 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:04:20,341 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:04:20,341 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:04:20,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:04:12" (3/4) ... [2018-11-28 18:04:20,353 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:04:20,360 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure isinf_float [2018-11-28 18:04:20,360 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:04:20,361 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:04:20,361 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure modf_float [2018-11-28 18:04:20,361 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure __signbit_float [2018-11-28 18:04:20,368 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 31 nodes and edges [2018-11-28 18:04:20,369 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 14 nodes and edges [2018-11-28 18:04:20,369 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:04:20,400 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: x == \old(x) [2018-11-28 18:04:20,401 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: \old(x) == x [2018-11-28 18:04:20,401 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) [2018-11-28 18:04:20,401 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x) [2018-11-28 18:04:20,402 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) [2018-11-28 18:04:20,402 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) [2018-11-28 18:04:20,452 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:04:20,456 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:04:20,457 INFO L168 Benchmark]: Toolchain (without parser) took 9366.79 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 954.0 MB in the beginning and 819.0 MB in the end (delta: 135.0 MB). Peak memory consumption was 264.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:20,459 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:20,459 INFO L168 Benchmark]: CACSL2BoogieTranslator took 398.13 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 MB in the end (delta: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:20,460 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.95 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:20,460 INFO L168 Benchmark]: Boogie Preprocessor took 140.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:20,462 INFO L168 Benchmark]: RCFGBuilder took 990.81 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:20,463 INFO L168 Benchmark]: TraceAbstraction took 7681.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 819.0 MB in the end (delta: 265.0 MB). Peak memory consumption was 265.0 MB. Max. memory is 11.5 GB. [2018-11-28 18:04:20,464 INFO L168 Benchmark]: Witness Printer took 114.94 ms. Allocated memory is still 1.2 GB. Free memory is still 819.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:04:20,468 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 398.13 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 937.9 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 34.95 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 140.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -180.0 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 990.81 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: 34.0 MB). Peak memory consumption was 34.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7681.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 819.0 MB in the end (delta: 265.0 MB). Peak memory consumption was 265.0 MB. Max. memory is 11.5 GB. * Witness Printer took 114.94 ms. Allocated memory is still 1.2 GB. Free memory is still 819.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 110]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: x == \old(x) - InvariantResult [Line: 48]: Loop Invariant [2018-11-28 18:04:20,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,484 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,485 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,489 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,490 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,490 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,490 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,490 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) - InvariantResult [Line: 59]: Loop Invariant [2018-11-28 18:04:20,493 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,494 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,494 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,494 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,494 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,495 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,495 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,495 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] Derived loop invariant: (x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x) - InvariantResult [Line: 36]: Loop Invariant [2018-11-28 18:04:20,500 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,500 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,500 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,500 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,501 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,501 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,501 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,501 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,502 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,502 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,502 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,503 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,503 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,503 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,503 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,503 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) - InvariantResult [Line: 76]: Loop Invariant Derived loop invariant: \old(x) == x - InvariantResult [Line: 25]: Loop Invariant [2018-11-28 18:04:20,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,512 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,517 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,518 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,518 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,519 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,519 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,519 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,519 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,519 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] [2018-11-28 18:04:20,520 WARN L416 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[modf_float_~i0~0,QUANTIFIED] Derived loop invariant: ((x == \old(x) && (\exists modf_float_~i0~0 : bv32 :: ~bvadd64(j0, 127bv32) == ~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x))) && ~fp~LONGDOUBLE(i0[31:31], i0[30:23], i0[22:0]) == \old(x)) && (\exists modf_float_~i0~0 : bv32 :: ~bvslt32(~bvadd64(~bvand32(255bv32, ~bvashr32(modf_float_~i0~0, 23bv32)), 4294967169bv32), 23bv32) && ~fp~LONGDOUBLE(modf_float_~i0~0[31:31], modf_float_~i0~0[30:23], modf_float_~i0~0[22:0]) == \old(x)) - InvariantResult [Line: 88]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 6 procedures, 59 locations, 1 error locations. SAFE Result, 7.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 4.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 207 SDtfs, 132 SDslu, 711 SDs, 0 SdLazy, 297 SolverSat, 16 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 178 GetRequests, 130 SyntacticMatches, 0 SemanticMatches, 48 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 2.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=59occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 17 LocationsWithAnnotation, 25 PreInvPairs, 34 NumberOfFragments, 295 HoareAnnotationTreeSize, 25 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 17 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 1.6s InterpolantComputationTime, 162 NumberOfCodeBlocks, 162 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 157 ConstructedInterpolants, 27 QuantifiedInterpolants, 34549 SizeOfPredicates, 18 NumberOfNonLiveVariables, 514 ConjunctsInSsa, 43 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...