./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer --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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ........................................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c -s /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer --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 11ee320e5dd60225454ae4b669c3bcedd1b28d2a ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:07,306 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:07,308 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:07,318 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:07,319 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:07,320 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:07,321 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:07,322 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:07,324 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:07,331 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:07,333 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:07,334 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:07,334 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:07,335 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:07,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:07,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:07,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:07,338 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:07,339 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:07,341 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:07,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:07,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:07,344 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:07,344 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:07,346 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:07,346 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:07,347 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:07,349 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:07,349 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:07,350 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:07,350 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:07,351 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:07,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:07,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:07,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:07,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:07,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:07,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:07,354 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:07,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:07,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:07,356 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-10-22 09:01:07,367 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:07,368 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:07,369 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:07,369 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:07,369 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:07,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:07,369 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:07,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:07,370 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:07,371 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:07,371 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:07,375 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:07,375 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:07,375 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:07,375 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:07,375 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:07,376 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:07,376 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer 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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-10-22 09:01:07,403 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:07,413 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:07,416 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:07,418 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:07,418 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:07,418 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-10-22 09:01:07,472 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/24764acd2/aa9ec08785eb4135a367e655ea5e46c8/FLAG9cccf5744 [2019-10-22 09:01:07,834 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:07,835 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-10-22 09:01:07,840 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/24764acd2/aa9ec08785eb4135a367e655ea5e46c8/FLAG9cccf5744 [2019-10-22 09:01:07,850 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/24764acd2/aa9ec08785eb4135a367e655ea5e46c8 [2019-10-22 09:01:07,853 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:07,854 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:07,855 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:07,855 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:07,858 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:07,859 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,861 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@652b64da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:07, skipping insertion in model container [2019-10-22 09:01:07,861 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:07" (1/1) ... [2019-10-22 09:01:07,867 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:07,884 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:08,162 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:08,167 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:08,196 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:08,216 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:08,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08 WrapperNode [2019-10-22 09:01:08,217 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:08,218 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:08,218 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:08,218 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:08,226 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:08,268 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:08,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:08,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:08,279 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,279 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,282 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,282 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,302 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,306 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,312 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... [2019-10-22 09:01:08,314 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:08,314 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:08,315 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:08,315 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:08,327 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:08,385 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:08,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~real [2019-10-22 09:01:08,386 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:08,764 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:08,765 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:01:08,766 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:08 BoogieIcfgContainer [2019-10-22 09:01:08,766 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:08,767 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:08,767 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:08,770 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:08,770 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:07" (1/3) ... [2019-10-22 09:01:08,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@992e0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:08, skipping insertion in model container [2019-10-22 09:01:08,771 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:08" (2/3) ... [2019-10-22 09:01:08,771 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@992e0a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:08, skipping insertion in model container [2019-10-22 09:01:08,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:08" (3/3) ... [2019-10-22 09:01:08,773 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-10-22 09:01:08,783 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:08,790 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:01:08,799 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:01:08,820 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:08,821 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:08,821 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:08,821 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:08,821 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:08,822 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:08,822 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:08,822 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:08,834 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-22 09:01:08,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:01:08,839 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:08,839 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:08,841 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:08,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:08,845 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-10-22 09:01:08,853 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:08,853 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153153668] [2019-10-22 09:01:08,853 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,854 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:08,854 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:08,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:08,967 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:08,968 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153153668] [2019-10-22 09:01:08,969 INFO L223 tionRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:08,970 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-22 09:01:08,970 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1071939965] [2019-10-22 09:01:08,974 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:08,974 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-10-22 09:01:08,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:08,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:08,987 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-22 09:01:09,002 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:09,002 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-10-22 09:01:09,003 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:09,004 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-10-22 09:01:09,004 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:09,019 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:01:09,020 INFO L226 Difference]: Without dead ends: 33 [2019-10-22 09:01:09,022 INFO L600 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 [2019-10-22 09:01:09,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-22 09:01:09,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-10-22 09:01:09,057 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-22 09:01:09,057 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-10-22 09:01:09,059 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-10-22 09:01:09,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:09,059 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-10-22 09:01:09,059 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:09,059 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-10-22 09:01:09,059 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:09,060 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:09,060 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:09,060 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:09,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:09,060 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-10-22 09:01:09,061 INFO L157 tionRefinementEngine]: Executing refinement strategy CAMEL [2019-10-22 09:01:09,061 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309139892] [2019-10-22 09:01:09,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,061 INFO L116 rtionOrderModulation]: Craig_NestedInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 09:01:09,061 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 09:01:09,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 09:01:09,160 INFO L168 tionRefinementEngine]: Strategy CAMEL found a feasible trace [2019-10-22 09:01:09,160 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 09:01:09,196 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:09 BoogieIcfgContainer [2019-10-22 09:01:09,196 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:09,197 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:09,197 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:09,197 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:09,197 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:08" (3/4) ... [2019-10-22 09:01:09,203 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-10-22 09:01:09,203 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:09,205 INFO L168 Benchmark]: Toolchain (without parser) took 1350.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 945.8 MB in the beginning and 1.1 GB in the end (delta: -160.3 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,205 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:09,206 INFO L168 Benchmark]: CACSL2BoogieTranslator took 362.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -224.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,206 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,207 INFO L168 Benchmark]: Boogie Preprocessor took 45.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:09,208 INFO L168 Benchmark]: RCFGBuilder took 451.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,209 INFO L168 Benchmark]: TraceAbstraction took 429.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:09,209 INFO L168 Benchmark]: Witness Printer took 6.22 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. [2019-10-22 09:01:09,212 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 962.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 362.39 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 178.8 MB). Free memory was 945.8 MB in the beginning and 1.2 GB in the end (delta: -224.3 MB). Peak memory consumption was 23.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 50.80 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 45.69 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 451.65 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 30.0 MB). Peak memory consumption was 30.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 429.67 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 6.22 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: 122]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 121, overapproximation of someUnaryDOUBLEoperation at line 19, overapproximation of bitwiseAnd at line 46, overapproximation of someBinaryArithmeticFLOAToperation at line 50. Possible FailurePath: [L15-L34] static const float one_exp = 1.0, halF_exp[2] = { 0.5, -0.5, }, huge_exp = 1.0e+30, twom100_exp = 7.8886090522e-31, ln2HI_exp[2] = { 6.9313812256e-01, -6.9313812256e-01, }, ln2LO_exp[2] = { 9.0580006145e-06, -9.0580006145e-06, }, invln2_exp = 1.4426950216e+00, P1_exp = 1.6666667163e-01, P2_exp = -2.7777778450e-03, P3_exp = 6.6137559770e-05, P4_exp = -1.6533901999e-06, P5_exp = 4.1381369442e-08; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L117] float x = 0.0f; [L37] float y, hi, lo, c, t; [L38] __int32_t k = 0, xsb, sx; [L39] __uint32_t hx; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L42] ieee_float_shape_type gf_u; [L43] gf_u.value = (x) [L44] EXPR gf_u.word [L44] (sx) = gf_u.word [L46] xsb = (sx >> 31) & 1 [L47] hx = sx & 0x7fffffff VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L49] COND TRUE ((hx) > 0x7f800000L) [L50] return x + x; VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L118] float res = __ieee754_expf(x); [L121] COND TRUE res != 1.0f VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] [L122] __VERIFIER_error() VAL [halF_exp={-3:0}, huge_exp=1000000000000000000000000000000, invln2_exp=1803368777/1250000000, ln2HI_exp={-2:0}, ln2LO_exp={1:0}, one_exp=1, P1_exp=16666667163/100000000000, P3_exp=6613755977/100000000000000, P5_exp=20690684721/500000000000000000, twom100_exp=39443045261/50000000000000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.3s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 46 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 49 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-cad4683 [2019-10-22 09:01:11,168 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 09:01:11,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 09:01:11,180 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 09:01:11,180 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 09:01:11,182 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 09:01:11,184 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 09:01:11,186 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 09:01:11,189 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 09:01:11,191 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 09:01:11,193 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 09:01:11,195 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 09:01:11,203 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 09:01:11,204 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 09:01:11,205 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 09:01:11,206 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 09:01:11,206 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 09:01:11,207 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 09:01:11,211 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 09:01:11,212 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 09:01:11,213 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 09:01:11,214 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 09:01:11,215 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 09:01:11,220 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 09:01:11,221 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 09:01:11,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 09:01:11,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 09:01:11,222 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 09:01:11,223 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 09:01:11,225 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 09:01:11,225 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 09:01:11,225 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 09:01:11,226 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 09:01:11,226 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 09:01:11,227 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 09:01:11,227 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 09:01:11,228 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 09:01:11,228 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 09:01:11,228 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 09:01:11,229 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 09:01:11,229 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 09:01:11,230 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-10-22 09:01:11,248 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 09:01:11,249 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 09:01:11,250 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-10-22 09:01:11,250 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-10-22 09:01:11,250 INFO L138 SettingsManager]: * Use SBE=true [2019-10-22 09:01:11,250 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 09:01:11,250 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-22 09:01:11,251 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-22 09:01:11,251 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 09:01:11,251 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 09:01:11,251 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 09:01:11,251 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * Use constant arrays=true [2019-10-22 09:01:11,252 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 09:01:11,253 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 09:01:11,253 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 09:01:11,253 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 09:01:11,253 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 09:01:11,253 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 09:01:11,253 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 09:01:11,254 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer 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 -> 11ee320e5dd60225454ae4b669c3bcedd1b28d2a [2019-10-22 09:01:11,282 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 09:01:11,292 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 09:01:11,295 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 09:01:11,296 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 09:01:11,297 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 09:01:11,298 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/../../sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-10-22 09:01:11,343 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/f8809884c/c9e4c51ca07d4d329555b1633c9bd6cc/FLAG9f4528b8b [2019-10-22 09:01:11,736 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 09:01:11,737 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/sv-benchmarks/c/float-newlib/float_req_bl_0832a.c [2019-10-22 09:01:11,745 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/f8809884c/c9e4c51ca07d4d329555b1633c9bd6cc/FLAG9f4528b8b [2019-10-22 09:01:11,760 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/data/f8809884c/c9e4c51ca07d4d329555b1633c9bd6cc [2019-10-22 09:01:11,765 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 09:01:11,766 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 09:01:11,767 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:11,767 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 09:01:11,771 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 09:01:11,772 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,775 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36b5f703 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:11, skipping insertion in model container [2019-10-22 09:01:11,775 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 09:01:11" (1/1) ... [2019-10-22 09:01:11,782 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 09:01:11,804 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 09:01:12,017 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:12,027 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 09:01:12,122 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 09:01:12,146 INFO L192 MainTranslator]: Completed translation [2019-10-22 09:01:12,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12 WrapperNode [2019-10-22 09:01:12,146 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 09:01:12,147 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:12,147 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 09:01:12,148 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 09:01:12,156 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,167 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,192 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 09:01:12,192 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 09:01:12,192 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 09:01:12,192 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 09:01:12,200 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,200 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,217 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,222 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... [2019-10-22 09:01:12,228 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 09:01:12,229 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 09:01:12,229 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 09:01:12,229 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 09:01:12,235 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~intFLOATTYPE4 [2019-10-22 09:01:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 09:01:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-10-22 09:01:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-10-22 09:01:12,287 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 09:01:12,288 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 09:01:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-10-22 09:01:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-10-22 09:01:12,288 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-22 09:01:21,176 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 09:01:21,176 INFO L284 CfgBuilder]: Removed 16 assume(true) statements. [2019-10-22 09:01:21,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:21 BoogieIcfgContainer [2019-10-22 09:01:21,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 09:01:21,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 09:01:21,179 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 09:01:21,182 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 09:01:21,182 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 09:01:11" (1/3) ... [2019-10-22 09:01:21,183 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e7f538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:21, skipping insertion in model container [2019-10-22 09:01:21,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 09:01:12" (2/3) ... [2019-10-22 09:01:21,184 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@12e7f538 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 09:01:21, skipping insertion in model container [2019-10-22 09:01:21,184 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:21" (3/3) ... [2019-10-22 09:01:21,186 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0832a.c [2019-10-22 09:01:21,196 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 09:01:21,204 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-22 09:01:21,216 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-22 09:01:21,240 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 09:01:21,241 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 09:01:21,241 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 09:01:21,241 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 09:01:21,241 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 09:01:21,241 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 09:01:21,241 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 09:01:21,242 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 09:01:21,256 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2019-10-22 09:01:21,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-10-22 09:01:21,262 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:21,263 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:21,265 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:21,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:21,271 INFO L82 PathProgramCache]: Analyzing trace with hash 354246130, now seen corresponding path program 1 times [2019-10-22 09:01:21,283 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:21,283 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1202077207] [2019-10-22 09:01:21,283 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:21,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:21,422 INFO L256 TraceCheckSpWp]: Trace formula consists of 51 conjuncts, 1 conjunts are in the unsatisfiable core [2019-10-22 09:01:21,427 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:21,439 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:21,440 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:21,442 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:21,443 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1202077207] [2019-10-22 09:01:21,444 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:21,444 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-10-22 09:01:21,445 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2037991354] [2019-10-22 09:01:21,449 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-22 09:01:21,450 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:21,460 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-22 09:01:21,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:21,463 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2019-10-22 09:01:21,484 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:21,485 INFO L93 Difference]: Finished difference Result 70 states and 112 transitions. [2019-10-22 09:01:21,485 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-22 09:01:21,486 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 8 [2019-10-22 09:01:21,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:21,498 INFO L225 Difference]: With dead ends: 70 [2019-10-22 09:01:21,498 INFO L226 Difference]: Without dead ends: 33 [2019-10-22 09:01:21,502 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-22 09:01:21,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2019-10-22 09:01:21,538 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2019-10-22 09:01:21,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2019-10-22 09:01:21,541 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 43 transitions. [2019-10-22 09:01:21,542 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 43 transitions. Word has length 8 [2019-10-22 09:01:21,542 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:21,543 INFO L462 AbstractCegarLoop]: Abstraction has 33 states and 43 transitions. [2019-10-22 09:01:21,543 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-22 09:01:21,543 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 43 transitions. [2019-10-22 09:01:21,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-10-22 09:01:21,544 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:21,544 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:21,751 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-10-22 09:01:21,752 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:21,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:21,752 INFO L82 PathProgramCache]: Analyzing trace with hash 325000437, now seen corresponding path program 1 times [2019-10-22 09:01:21,753 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:21,753 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [350426421] [2019-10-22 09:01:21,753 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:21,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:21,883 INFO L256 TraceCheckSpWp]: Trace formula consists of 61 conjuncts, 8 conjunts are in the unsatisfiable core [2019-10-22 09:01:21,888 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:21,968 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:21,969 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:22,041 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:22,041 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [350426421] [2019-10-22 09:01:22,042 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:22,042 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-10-22 09:01:22,042 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [555336789] [2019-10-22 09:01:22,043 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-22 09:01:22,044 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:22,044 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-22 09:01:22,044 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-10-22 09:01:22,045 INFO L87 Difference]: Start difference. First operand 33 states and 43 transitions. Second operand 8 states. [2019-10-22 09:01:26,812 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:26,813 INFO L93 Difference]: Finished difference Result 50 states and 61 transitions. [2019-10-22 09:01:26,881 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-22 09:01:26,882 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 9 [2019-10-22 09:01:26,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:26,882 INFO L225 Difference]: With dead ends: 50 [2019-10-22 09:01:26,883 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 09:01:26,884 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-10-22 09:01:26,884 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 09:01:26,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 09:01:26,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 09:01:26,889 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2019-10-22 09:01:26,889 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 9 [2019-10-22 09:01:26,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:26,889 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2019-10-22 09:01:26,890 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-22 09:01:26,890 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2019-10-22 09:01:26,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2019-10-22 09:01:26,890 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:26,891 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:27,099 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-10-22 09:01:27,099 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:27,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:27,100 INFO L82 PathProgramCache]: Analyzing trace with hash -239562945, now seen corresponding path program 1 times [2019-10-22 09:01:27,100 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:27,101 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1809060165] [2019-10-22 09:01:27,101 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:27,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:27,256 INFO L256 TraceCheckSpWp]: Trace formula consists of 67 conjuncts, 7 conjunts are in the unsatisfiable core [2019-10-22 09:01:27,257 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:27,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:27,323 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:27,857 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:27,858 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1809060165] [2019-10-22 09:01:27,858 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:27,858 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 6 [2019-10-22 09:01:27,858 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1762073097] [2019-10-22 09:01:27,859 INFO L442 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-22 09:01:27,860 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:27,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-22 09:01:27,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-22 09:01:27,861 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand 7 states. [2019-10-22 09:01:31,714 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:31,715 INFO L93 Difference]: Finished difference Result 33 states and 34 transitions. [2019-10-22 09:01:31,715 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-22 09:01:31,715 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 15 [2019-10-22 09:01:31,716 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:31,716 INFO L225 Difference]: With dead ends: 33 [2019-10-22 09:01:31,716 INFO L226 Difference]: Without dead ends: 29 [2019-10-22 09:01:31,717 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 20 SyntacticMatches, 3 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-10-22 09:01:31,717 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2019-10-22 09:01:31,720 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2019-10-22 09:01:31,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 29 states. [2019-10-22 09:01:31,721 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 30 transitions. [2019-10-22 09:01:31,721 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 30 transitions. Word has length 15 [2019-10-22 09:01:31,723 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:31,723 INFO L462 AbstractCegarLoop]: Abstraction has 29 states and 30 transitions. [2019-10-22 09:01:31,723 INFO L463 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-22 09:01:31,723 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 30 transitions. [2019-10-22 09:01:31,724 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2019-10-22 09:01:31,725 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 09:01:31,725 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-22 09:01:31,926 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-10-22 09:01:31,926 INFO L410 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-22 09:01:31,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 09:01:31,926 INFO L82 PathProgramCache]: Analyzing trace with hash 1708303706, now seen corresponding path program 1 times [2019-10-22 09:01:31,931 INFO L157 tionRefinementEngine]: Executing refinement strategy WOLF [2019-10-22 09:01:31,931 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1728713895] [2019-10-22 09:01:31,931 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/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 [2019-10-22 09:01:32,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-22 09:01:32,797 INFO L256 TraceCheckSpWp]: Trace formula consists of 70 conjuncts, 6 conjunts are in the unsatisfiable core [2019-10-22 09:01:32,798 INFO L279 TraceCheckSpWp]: Computing forward predicates... [2019-10-22 09:01:32,849 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:32,849 INFO L321 TraceCheckSpWp]: Computing backward predicates... [2019-10-22 09:01:33,196 WARN L191 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 6 [2019-10-22 09:01:33,280 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-22 09:01:33,280 INFO L342 tionRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1728713895] [2019-10-22 09:01:33,280 INFO L223 tionRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-10-22 09:01:33,281 INFO L236 tionRefinementEngine]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 5 [2019-10-22 09:01:33,281 INFO L342 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [399861522] [2019-10-22 09:01:33,281 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-22 09:01:33,282 INFO L137 tionRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-10-22 09:01:33,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-22 09:01:33,282 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:33,282 INFO L87 Difference]: Start difference. First operand 29 states and 30 transitions. Second operand 6 states. [2019-10-22 09:01:33,320 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-22 09:01:33,320 INFO L93 Difference]: Finished difference Result 29 states and 30 transitions. [2019-10-22 09:01:33,322 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-22 09:01:33,322 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 17 [2019-10-22 09:01:33,322 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-22 09:01:33,323 INFO L225 Difference]: With dead ends: 29 [2019-10-22 09:01:33,323 INFO L226 Difference]: Without dead ends: 0 [2019-10-22 09:01:33,323 INFO L600 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 27 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2019-10-22 09:01:33,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-22 09:01:33,324 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-22 09:01:33,324 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-22 09:01:33,324 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-22 09:01:33,324 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 17 [2019-10-22 09:01:33,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-22 09:01:33,324 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-22 09:01:33,324 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-22 09:01:33,324 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-22 09:01:33,325 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-22 09:01:33,525 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 mathsat -unsat_core_generation=3 [2019-10-22 09:01:33,530 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-10-22 09:01:33,618 INFO L446 ceAbstractionStarter]: At program point L126(lines 111 127) the Hoare annotation is: true [2019-10-22 09:01:33,618 INFO L443 ceAbstractionStarter]: For program point L52(line 52) no Hoare annotation was computed. [2019-10-22 09:01:33,618 INFO L443 ceAbstractionStarter]: For program point L52-2(line 52) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point L102(lines 102 106) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point L102-1(lines 95 108) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point L102-2(lines 102 106) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point L53(lines 53 54) no Hoare annotation was computed. [2019-10-22 09:01:33,619 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 122) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L78(lines 78 81) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L70(lines 70 73) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L70-2(lines 58 73) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L71(lines 71 72) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L121(lines 121 124) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L55(lines 55 56) no Hoare annotation was computed. [2019-10-22 09:01:33,620 INFO L443 ceAbstractionStarter]: For program point L97-1(lines 97 101) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L439 ceAbstractionStarter]: At program point L97-2(lines 97 101) the Hoare annotation is: false [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L122(line 122) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L89(lines 89 93) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L89-1(lines 82 95) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L89-2(lines 89 93) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-10-22 09:01:33,621 INFO L443 ceAbstractionStarter]: For program point L82(lines 82 108) no Hoare annotation was computed. [2019-10-22 09:01:33,622 INFO L443 ceAbstractionStarter]: For program point L49(lines 49 50) no Hoare annotation was computed. [2019-10-22 09:01:33,622 INFO L439 ceAbstractionStarter]: At program point L107(lines 36 109) the Hoare annotation is: (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) (and (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (_ +zero 8 24)) (= |ULTIMATE.start___ieee754_expf_#res| (fp.add roundNearestTiesToEven .cse0 (_ +zero 8 24))) (= ~one_exp~0 .cse0) (exists ((ULTIMATE.start___ieee754_expf_~sx~0 (_ BitVec 32))) (and (= (fp ((_ extract 31 31) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 30 23) ULTIMATE.start___ieee754_expf_~sx~0) ((_ extract 22 0) ULTIMATE.start___ieee754_expf_~sx~0)) (_ +zero 8 24)) (= ULTIMATE.start___ieee754_expf_~hx~0 (bvand (_ bv2147483647 32) ULTIMATE.start___ieee754_expf_~sx~0)))))) [2019-10-22 09:01:33,622 INFO L443 ceAbstractionStarter]: For program point L41-1(lines 41 45) no Hoare annotation was computed. [2019-10-22 09:01:33,622 INFO L439 ceAbstractionStarter]: At program point L41-2(lines 41 45) the Hoare annotation is: (and (= ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1000000000000000000000000000000.0)) ~huge_exp~0) (= ULTIMATE.start___ieee754_expf_~x (_ +zero 8 24)) (= ~one_exp~0 ((_ to_fp 8 24) roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 1.0)))) [2019-10-22 09:01:33,622 INFO L443 ceAbstractionStarter]: For program point L41-3(lines 41 45) no Hoare annotation was computed. [2019-10-22 09:01:33,623 INFO L443 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-10-22 09:01:33,623 INFO L443 ceAbstractionStarter]: For program point L58(lines 58 73) no Hoare annotation was computed. [2019-10-22 09:01:33,624 INFO L443 ceAbstractionStarter]: For program point L59(lines 59 68) no Hoare annotation was computed. [2019-10-22 09:01:33,624 INFO L443 ceAbstractionStarter]: For program point L59-2(lines 59 68) no Hoare annotation was computed. [2019-10-22 09:01:33,624 INFO L443 ceAbstractionStarter]: For program point L51(lines 51 52) no Hoare annotation was computed. [2019-10-22 09:01:33,624 INFO L443 ceAbstractionStarter]: For program point L84-1(lines 84 88) no Hoare annotation was computed. [2019-10-22 09:01:33,624 INFO L439 ceAbstractionStarter]: At program point L84-2(lines 84 88) the Hoare annotation is: false [2019-10-22 09:01:33,634 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,635 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,636 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,636 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,636 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,637 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,640 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,641 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,642 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,644 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,645 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,646 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,648 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 09:01:33 BoogieIcfgContainer [2019-10-22 09:01:33,648 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 09:01:33,649 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 09:01:33,649 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 09:01:33,649 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 09:01:33,650 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 09:01:21" (3/4) ... [2019-10-22 09:01:33,654 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-10-22 09:01:33,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-10-22 09:01:33,666 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-10-22 09:01:33,699 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (((x == ~Pluszero~LONGDOUBLE() && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~Pluszero~LONGDOUBLE() && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) [2019-10-22 09:01:33,744 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_fdf229fc-251e-461c-8797-f986d8991eee/bin/uautomizer/witness.graphml [2019-10-22 09:01:33,744 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 09:01:33,746 INFO L168 Benchmark]: Toolchain (without parser) took 21979.73 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 947.0 MB in the beginning and 978.1 MB in the end (delta: -31.1 MB). Peak memory consumption was 135.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,746 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:33,746 INFO L168 Benchmark]: CACSL2BoogieTranslator took 380.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,747 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 09:01:33,747 INFO L168 Benchmark]: Boogie Preprocessor took 36.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,748 INFO L168 Benchmark]: RCFGBuilder took 8948.79 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,748 INFO L168 Benchmark]: TraceAbstraction took 12469.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.7 MB in the end (delta: 128.7 MB). Peak memory consumption was 128.7 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,748 INFO L168 Benchmark]: Witness Printer took 95.55 ms. Allocated memory is still 1.2 GB. Free memory was 984.7 MB in the beginning and 978.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-10-22 09:01:33,750 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 972.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 380.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 166.2 MB). Free memory was 947.0 MB in the beginning and 1.2 GB in the end (delta: -208.2 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.65 ms. Allocated memory is still 1.2 GB. Free memory is still 1.2 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 36.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.2 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 8948.79 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: 28.5 MB). Peak memory consumption was 28.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 12469.98 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 984.7 MB in the end (delta: 128.7 MB). Peak memory consumption was 128.7 MB. Max. memory is 11.5 GB. * Witness Printer took 95.55 ms. Allocated memory is still 1.2 GB. Free memory was 984.7 MB in the beginning and 978.1 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 122]: 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: 97]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 36]: Loop Invariant [2019-10-22 09:01:33,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,756 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,757 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,757 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,758 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,758 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,759 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,760 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] [2019-10-22 09:01:33,760 WARN L417 cessorBacktranslator]: Identifier is quantified, using identity as back-translation of IdentifierExpression[ULTIMATE.start___ieee754_expf_~sx~0,QUANTIFIED] Derived loop invariant: (((x == ~Pluszero~LONGDOUBLE() && ~fp~LONGDOUBLE(sx[31:31], sx[30:23], sx[22:0]) == ~Pluszero~LONGDOUBLE()) && \result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)), ~Pluszero~LONGDOUBLE())) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0))) && (\exists ULTIMATE.start___ieee754_expf_~sx~0 : bv32 :: ~fp~LONGDOUBLE(ULTIMATE.start___ieee754_expf_~sx~0[31:31], ULTIMATE.start___ieee754_expf_~sx~0[30:23], ULTIMATE.start___ieee754_expf_~sx~0[22:0]) == ~Pluszero~LONGDOUBLE() && hx == ~bvand32(2147483647bv32, ULTIMATE.start___ieee754_expf_~sx~0)) - InvariantResult [Line: 41]: Loop Invariant [2019-10-22 09:01:33,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,761 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,762 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-10-22 09:01:33,763 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven Derived loop invariant: (~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0E30)) == huge_exp && x == ~Pluszero~LONGDOUBLE()) && one_exp == ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, ~to_fp~LONGDOUBLE(~roundNearestTiesToEven, 1.0)) - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 111]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 36 locations, 1 error locations. Result: SAFE, OverallTime: 12.3s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 98 SDtfs, 171 SDslu, 49 SDs, 0 SdLazy, 46 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 94 GetRequests, 71 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 67 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 1.0s SatisfiabilityAnalysisTime, 1.3s InterpolantComputationTime, 49 NumberOfCodeBlocks, 49 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 90 ConstructedInterpolants, 2 QuantifiedInterpolants, 9210 SizeOfPredicates, 17 NumberOfNonLiveVariables, 249 ConjunctsInSsa, 22 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...