./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/float-newlib/float_req_bl_0720.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2099bda96984d0e4445a07fd627008694b409440 .................................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/float-newlib/float_req_bl_0720.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 2099bda96984d0e4445a07fd627008694b409440 ...................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-27 23:48:27,267 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:48:27,270 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:48:27,283 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:48:27,284 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:48:27,285 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:48:27,287 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:48:27,289 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:48:27,292 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:48:27,293 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:48:27,294 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:48:27,295 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:48:27,296 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:48:27,297 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:48:27,299 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:48:27,300 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:48:27,301 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:48:27,302 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:48:27,304 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:48:27,307 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:48:27,308 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:48:27,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:48:27,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:48:27,312 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:48:27,315 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:48:27,315 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:48:27,315 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:48:27,316 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:48:27,317 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:48:27,318 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:48:27,318 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:48:27,319 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:48:27,320 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:48:27,321 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:48:27,322 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:48:27,322 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:48:27,323 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:48:27,324 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:48:27,324 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:48:27,325 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:48:27,326 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:48:27,327 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-11-27 23:48:27,342 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:48:27,343 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:48:27,344 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:48:27,345 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:48:27,345 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:48:27,345 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:48:27,346 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:48:27,346 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-27 23:48:27,346 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:48:27,347 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:48:27,347 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:48:27,347 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:48:27,347 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:48:27,348 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:48:27,348 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:48:27,348 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:48:27,349 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:48:27,349 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:48:27,349 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:48:27,350 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:48:27,350 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:48:27,350 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:48:27,351 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:48:27,351 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:48:27,351 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:48:27,352 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-27 23:48:27,352 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-27 23:48:27,352 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:48:27,353 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-27 23:48:27,764 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:48:27,785 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:48:27,791 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:48:27,793 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:48:27,793 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:48:27,794 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-27 23:48:27,868 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88faf1a97/1c185971fcee40c0a04147fb53558b68/FLAG34b47639a [2019-11-27 23:48:28,324 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:48:28,325 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-27 23:48:28,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88faf1a97/1c185971fcee40c0a04147fb53558b68/FLAG34b47639a [2019-11-27 23:48:28,713 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/88faf1a97/1c185971fcee40c0a04147fb53558b68 [2019-11-27 23:48:28,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:48:28,717 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:48:28,719 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:48:28,719 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:48:28,723 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:48:28,724 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:48:28" (1/1) ... [2019-11-27 23:48:28,728 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@381b270f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:28, skipping insertion in model container [2019-11-27 23:48:28,728 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:48:28" (1/1) ... [2019-11-27 23:48:28,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:48:28,762 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:48:29,053 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:48:29,061 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:48:29,222 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:48:29,246 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:48:29,247 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29 WrapperNode [2019-11-27 23:48:29,247 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:48:29,248 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:48:29,248 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:48:29,248 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:48:29,257 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,269 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,305 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:48:29,305 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:48:29,305 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:48:29,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:48:29,313 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,314 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,316 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,317 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,324 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,330 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,332 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... [2019-11-27 23:48:29,335 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:48:29,336 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:48:29,336 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:48:29,336 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:48:29,337 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:48:29,401 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:48:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-11-27 23:48:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-11-27 23:48:29,402 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-11-27 23:48:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:48:29,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:48:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-11-27 23:48:29,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:48:29,769 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:48:29,770 INFO L297 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-27 23:48:29,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:29 BoogieIcfgContainer [2019-11-27 23:48:29,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:48:29,777 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:48:29,777 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:48:29,780 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:48:29,780 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:48:28" (1/3) ... [2019-11-27 23:48:29,781 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a10234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:48:29, skipping insertion in model container [2019-11-27 23:48:29,781 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:29" (2/3) ... [2019-11-27 23:48:29,782 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@24a10234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:48:29, skipping insertion in model container [2019-11-27 23:48:29,782 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:29" (3/3) ... [2019-11-27 23:48:29,784 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-27 23:48:29,794 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:48:29,802 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:48:29,814 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:48:29,834 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:48:29,834 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:48:29,834 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:48:29,834 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:48:29,835 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:48:29,835 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:48:29,835 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:48:29,836 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:48:29,851 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-27 23:48:29,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-27 23:48:29,857 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:48:29,858 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:48:29,859 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:48:29,865 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:48:29,865 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-27 23:48:29,875 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:48:29,875 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [294093498] [2019-11-27 23:48:29,876 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:48:29,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:48:29,993 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:29,994 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [294093498] [2019-11-27 23:48:29,995 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:48:29,995 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-11-27 23:48:29,996 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1186848732] [2019-11-27 23:48:30,002 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:48:30,003 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-27 23:48:30,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:48:30,018 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:48:30,021 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-27 23:48:30,046 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:48:30,046 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-27 23:48:30,046 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:48:30,048 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-27 23:48:30,049 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:48:30,061 INFO L225 Difference]: With dead ends: 64 [2019-11-27 23:48:30,061 INFO L226 Difference]: Without dead ends: 30 [2019-11-27 23:48:30,065 INFO L630 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 [2019-11-27 23:48:30,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-27 23:48:30,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-27 23:48:30,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-27 23:48:30,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-27 23:48:30,121 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-27 23:48:30,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:48:30,122 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-27 23:48:30,123 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:48:30,123 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-27 23:48:30,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:48:30,124 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:48:30,124 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:48:30,125 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:48:30,126 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:48:30,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-27 23:48:30,127 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-27 23:48:30,127 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1971074624] [2019-11-27 23:48:30,128 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-27 23:48:30,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:48:30,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-27 23:48:30,242 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-27 23:48:30,242 INFO L475 BasicCegarLoop]: Counterexample might be feasible [2019-11-27 23:48:30,276 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:48:30 BoogieIcfgContainer [2019-11-27 23:48:30,276 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:48:30,277 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:48:30,277 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:48:30,277 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:48:30,278 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:29" (3/4) ... [2019-11-27 23:48:30,282 INFO L140 WitnessPrinter]: No result that supports witness generation found [2019-11-27 23:48:30,282 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:48:30,286 INFO L168 Benchmark]: Toolchain (without parser) took 1566.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -118.5 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:30,286 INFO L168 Benchmark]: CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:48:30,287 INFO L168 Benchmark]: CACSL2BoogieTranslator took 528.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:30,289 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.00 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. [2019-11-27 23:48:30,290 INFO L168 Benchmark]: Boogie Preprocessor took 30.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:48:30,291 INFO L168 Benchmark]: RCFGBuilder took 435.72 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:30,292 INFO L168 Benchmark]: TraceAbstraction took 499.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:30,292 INFO L168 Benchmark]: Witness Printer took 5.90 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. [2019-11-27 23:48:30,304 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.29 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 528.88 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 963.1 MB in the beginning and 1.1 GB in the end (delta: -172.2 MB). Peak memory consumption was 21.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.00 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 435.72 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: 27.0 MB). Peak memory consumption was 27.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 499.49 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 5.90 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: 96]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 13, overapproximation of someBinaryArithmeticFLOAToperation at line 30, overapproximation of bitwiseAnd at line 27. Possible FailurePath: [L15] static const float one_sqrt = 1.0, tiny_sqrt = 1.0e-30; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L91] float x = 0.0f / 0.0f; [L18] float z; [L19] __uint32_t r, hx; [L20] __int32_t ix, s, q, m, t, i; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L23] ieee_float_shape_type gf_u; [L24] gf_u.value = (x) [L25] EXPR gf_u.word [L25] (ix) = gf_u.word [L27] hx = ix & 0x7fffffff VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L29] COND TRUE !((hx) < 0x7f800000L) [L30] return x * x + x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L92] float res = __ieee754_sqrtf(x); [L13] return x != x; VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] [L95] COND TRUE !isnan_float(res) [L96] __VERIFIER_error() VAL [one_sqrt=1, tiny_sqrt=1/1000000000000000000000000000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: UNSAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 43 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=33occurred 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, 19 NumberOfCodeBlocks, 19 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 8 ConstructedInterpolants, 0 QuantifiedInterpolants, 64 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 0.1.24-30f4e4a [2019-11-27 23:48:32,322 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-27 23:48:32,325 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-27 23:48:32,344 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-27 23:48:32,344 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-27 23:48:32,347 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-27 23:48:32,349 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-27 23:48:32,358 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-27 23:48:32,364 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-27 23:48:32,368 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-27 23:48:32,369 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-27 23:48:32,373 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-27 23:48:32,373 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-27 23:48:32,376 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-27 23:48:32,377 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-27 23:48:32,379 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-27 23:48:32,381 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-27 23:48:32,382 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-27 23:48:32,384 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-27 23:48:32,389 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-27 23:48:32,394 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-27 23:48:32,397 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-27 23:48:32,398 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-27 23:48:32,399 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-27 23:48:32,404 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-27 23:48:32,404 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-27 23:48:32,405 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-27 23:48:32,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-27 23:48:32,407 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-27 23:48:32,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-27 23:48:32,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-27 23:48:32,410 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-27 23:48:32,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-27 23:48:32,412 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-27 23:48:32,413 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-27 23:48:32,413 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-27 23:48:32,415 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-27 23:48:32,415 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-27 23:48:32,415 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-27 23:48:32,416 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-27 23:48:32,418 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-27 23:48:32,419 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-11-27 23:48:32,454 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-27 23:48:32,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-27 23:48:32,459 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-27 23:48:32,463 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-27 23:48:32,464 INFO L138 SettingsManager]: * Use SBE=true [2019-11-27 23:48:32,464 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-27 23:48:32,464 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-27 23:48:32,465 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-27 23:48:32,465 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-27 23:48:32,465 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-27 23:48:32,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-27 23:48:32,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-27 23:48:32,467 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2019-11-27 23:48:32,468 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-11-27 23:48:32,468 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-27 23:48:32,468 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-27 23:48:32,468 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-27 23:48:32,469 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-27 23:48:32,469 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-27 23:48:32,470 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-27 23:48:32,471 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-27 23:48:32,472 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-27 23:48:32,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:48:32,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-27 23:48:32,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-27 23:48:32,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-27 23:48:32,474 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2019-11-27 23:48:32,475 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-11-27 23:48:32,475 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-27 23:48:32,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-27 23:48:32,475 INFO L138 SettingsManager]: * Logic for external solver=AUFBV Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2099bda96984d0e4445a07fd627008694b409440 [2019-11-27 23:48:32,757 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-27 23:48:32,773 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-27 23:48:32,776 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-27 23:48:32,778 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-27 23:48:32,778 INFO L275 PluginConnector]: CDTParser initialized [2019-11-27 23:48:32,779 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-27 23:48:32,845 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761607c44/0d2ec07a98db4aecb8f5f481aef3aeb5/FLAG83b2d5d20 [2019-11-27 23:48:33,322 INFO L306 CDTParser]: Found 1 translation units. [2019-11-27 23:48:33,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/float-newlib/float_req_bl_0720.c [2019-11-27 23:48:33,330 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761607c44/0d2ec07a98db4aecb8f5f481aef3aeb5/FLAG83b2d5d20 [2019-11-27 23:48:33,668 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/761607c44/0d2ec07a98db4aecb8f5f481aef3aeb5 [2019-11-27 23:48:33,672 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-27 23:48:33,674 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-27 23:48:33,675 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-27 23:48:33,675 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-27 23:48:33,679 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-27 23:48:33,680 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:48:33" (1/1) ... [2019-11-27 23:48:33,683 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b83df50 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:33, skipping insertion in model container [2019-11-27 23:48:33,683 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.11 11:48:33" (1/1) ... [2019-11-27 23:48:33,691 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-27 23:48:33,714 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-27 23:48:33,957 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:48:33,965 INFO L203 MainTranslator]: Completed pre-run [2019-11-27 23:48:34,002 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-27 23:48:34,095 INFO L208 MainTranslator]: Completed translation [2019-11-27 23:48:34,095 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34 WrapperNode [2019-11-27 23:48:34,096 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-27 23:48:34,096 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-27 23:48:34,096 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-27 23:48:34,096 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-27 23:48:34,104 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,153 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-27 23:48:34,154 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-27 23:48:34,154 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-27 23:48:34,154 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-27 23:48:34,162 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,163 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,167 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,168 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,185 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,188 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... [2019-11-27 23:48:34,192 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-27 23:48:34,193 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-27 23:48:34,193 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-27 23:48:34,193 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-27 23:48:34,194 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-27 23:48:34,258 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-11-27 23:48:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE4 [2019-11-27 23:48:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-11-27 23:48:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-27 23:48:34,259 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-27 23:48:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2019-11-27 23:48:34,259 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-11-27 23:48:34,260 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-11-27 23:48:35,214 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-27 23:48:35,214 INFO L297 CfgBuilder]: Removed 14 assume(true) statements. [2019-11-27 23:48:35,215 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:35 BoogieIcfgContainer [2019-11-27 23:48:35,216 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-27 23:48:35,217 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-27 23:48:35,217 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-27 23:48:35,220 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-27 23:48:35,220 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.11 11:48:33" (1/3) ... [2019-11-27 23:48:35,221 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de039f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:48:35, skipping insertion in model container [2019-11-27 23:48:35,221 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.11 11:48:34" (2/3) ... [2019-11-27 23:48:35,222 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1de039f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.11 11:48:35, skipping insertion in model container [2019-11-27 23:48:35,222 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:35" (3/3) ... [2019-11-27 23:48:35,224 INFO L109 eAbstractionObserver]: Analyzing ICFG float_req_bl_0720.c [2019-11-27 23:48:35,234 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-27 23:48:35,241 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-27 23:48:35,252 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-27 23:48:35,281 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-27 23:48:35,281 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-27 23:48:35,281 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-27 23:48:35,282 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-27 23:48:35,282 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-27 23:48:35,282 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-27 23:48:35,282 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-27 23:48:35,283 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-27 23:48:35,299 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2019-11-27 23:48:35,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-11-27 23:48:35,305 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:48:35,306 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:48:35,307 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:48:35,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:48:35,314 INFO L82 PathProgramCache]: Analyzing trace with hash -1903734416, now seen corresponding path program 1 times [2019-11-27 23:48:35,326 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:48:35,327 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1700819439] [2019-11-27 23:48:35,327 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2019-11-27 23:48:35,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:48:35,522 INFO L255 TraceCheckSpWp]: Trace formula consists of 23 conjuncts, 1 conjunts are in the unsatisfiable core [2019-11-27 23:48:35,526 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:48:35,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:35,539 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:48:35,543 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:35,544 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1700819439] [2019-11-27 23:48:35,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:48:35,545 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2019-11-27 23:48:35,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2096211162] [2019-11-27 23:48:35,551 INFO L442 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-11-27 23:48:35,552 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:48:35,566 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-11-27 23:48:35,567 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:48:35,569 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 2 states. [2019-11-27 23:48:35,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:48:35,591 INFO L93 Difference]: Finished difference Result 64 states and 98 transitions. [2019-11-27 23:48:35,591 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-11-27 23:48:35,592 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 9 [2019-11-27 23:48:35,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:48:35,605 INFO L225 Difference]: With dead ends: 64 [2019-11-27 23:48:35,605 INFO L226 Difference]: Without dead ends: 30 [2019-11-27 23:48:35,608 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-11-27 23:48:35,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-27 23:48:35,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-27 23:48:35,644 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-27 23:48:35,645 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 40 transitions. [2019-11-27 23:48:35,647 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 40 transitions. Word has length 9 [2019-11-27 23:48:35,647 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:48:35,647 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 40 transitions. [2019-11-27 23:48:35,647 INFO L463 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-11-27 23:48:35,647 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 40 transitions. [2019-11-27 23:48:35,648 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-11-27 23:48:35,648 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:48:35,648 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:48:35,862 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 mathsat -unsat_core_generation=3 [2019-11-27 23:48:35,863 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:48:35,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:48:35,864 INFO L82 PathProgramCache]: Analyzing trace with hash 1484616397, now seen corresponding path program 1 times [2019-11-27 23:48:35,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:48:35,866 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1403664677] [2019-11-27 23:48:35,866 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-11-27 23:48:36,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:48:36,072 INFO L255 TraceCheckSpWp]: Trace formula consists of 33 conjuncts, 11 conjunts are in the unsatisfiable core [2019-11-27 23:48:36,074 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:48:36,180 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:36,181 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:48:40,350 WARN L192 SmtUtils]: Spent 943.00 ms on a formula simplification that was a NOOP. DAG size: 10 [2019-11-27 23:48:40,362 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:40,362 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1403664677] [2019-11-27 23:48:40,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:48:40,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 6] imperfect sequences [] total 10 [2019-11-27 23:48:40,363 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580261823] [2019-11-27 23:48:40,365 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-11-27 23:48:40,365 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:48:40,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-11-27 23:48:40,366 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:48:40,366 INFO L87 Difference]: Start difference. First operand 30 states and 40 transitions. Second operand 10 states. [2019-11-27 23:48:41,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:48:41,318 INFO L93 Difference]: Finished difference Result 35 states and 44 transitions. [2019-11-27 23:48:41,320 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-11-27 23:48:41,320 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 10 [2019-11-27 23:48:41,321 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:48:41,321 INFO L225 Difference]: With dead ends: 35 [2019-11-27 23:48:41,322 INFO L226 Difference]: Without dead ends: 30 [2019-11-27 23:48:41,323 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 8 SyntacticMatches, 2 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 4.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2019-11-27 23:48:41,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2019-11-27 23:48:41,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 30. [2019-11-27 23:48:41,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30 states. [2019-11-27 23:48:41,329 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30 states to 30 states and 37 transitions. [2019-11-27 23:48:41,330 INFO L78 Accepts]: Start accepts. Automaton has 30 states and 37 transitions. Word has length 10 [2019-11-27 23:48:41,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:48:41,330 INFO L462 AbstractCegarLoop]: Abstraction has 30 states and 37 transitions. [2019-11-27 23:48:41,331 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-11-27 23:48:41,331 INFO L276 IsEmpty]: Start isEmpty. Operand 30 states and 37 transitions. [2019-11-27 23:48:41,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2019-11-27 23:48:41,332 INFO L402 BasicCegarLoop]: Found error trace [2019-11-27 23:48:41,332 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-27 23:48:41,547 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-11-27 23:48:41,547 INFO L410 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-27 23:48:41,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-27 23:48:41,548 INFO L82 PathProgramCache]: Analyzing trace with hash 591854048, now seen corresponding path program 1 times [2019-11-27 23:48:41,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy WOLF [2019-11-27 23:48:41,550 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [533617167] [2019-11-27 23:48:41,551 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 4 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with mathsat -unsat_core_generation=3 [2019-11-27 23:48:41,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-27 23:48:41,671 INFO L255 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 8 conjunts are in the unsatisfiable core [2019-11-27 23:48:41,674 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-27 23:48:41,768 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:41,768 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-27 23:48:41,893 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-27 23:48:41,893 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [533617167] [2019-11-27 23:48:41,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2019-11-27 23:48:41,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 8 [2019-11-27 23:48:41,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [541208268] [2019-11-27 23:48:41,895 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-11-27 23:48:41,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2019-11-27 23:48:41,900 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-11-27 23:48:41,901 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2019-11-27 23:48:41,901 INFO L87 Difference]: Start difference. First operand 30 states and 37 transitions. Second operand 8 states. [2019-11-27 23:48:42,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-27 23:48:42,065 INFO L93 Difference]: Finished difference Result 30 states and 37 transitions. [2019-11-27 23:48:42,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-11-27 23:48:42,065 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 22 [2019-11-27 23:48:42,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-27 23:48:42,067 INFO L225 Difference]: With dead ends: 30 [2019-11-27 23:48:42,067 INFO L226 Difference]: Without dead ends: 0 [2019-11-27 23:48:42,068 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2019-11-27 23:48:42,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-27 23:48:42,069 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-27 23:48:42,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-27 23:48:42,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-27 23:48:42,069 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2019-11-27 23:48:42,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-27 23:48:42,070 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-27 23:48:42,070 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-11-27 23:48:42,070 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-27 23:48:42,070 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-27 23:48:42,271 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 mathsat -unsat_core_generation=3 [2019-11-27 23:48:42,273 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-27 23:48:42,410 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-27 23:48:42,411 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-27 23:48:42,411 INFO L242 CegarLoopResult]: At program point L53-2(lines 53 62) the Hoare annotation is: false [2019-11-27 23:48:42,411 INFO L246 CegarLoopResult]: For program point L53-3(lines 17 82) no Hoare annotation was computed. [2019-11-27 23:48:42,411 INFO L246 CegarLoopResult]: For program point L45(lines 45 46) no Hoare annotation was computed. [2019-11-27 23:48:42,411 INFO L246 CegarLoopResult]: For program point L45-2(lines 45 46) no Hoare annotation was computed. [2019-11-27 23:48:42,411 INFO L246 CegarLoopResult]: For program point L95(lines 95 98) no Hoare annotation was computed. [2019-11-27 23:48:42,412 INFO L246 CegarLoopResult]: For program point L29(lines 29 30) no Hoare annotation was computed. [2019-11-27 23:48:42,412 INFO L242 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= (_ bv1 32) |ULTIMATE.start_isnan_float_#res|) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:48:42,412 INFO L246 CegarLoopResult]: For program point L38(lines 38 42) no Hoare annotation was computed. [2019-11-27 23:48:42,412 INFO L246 CegarLoopResult]: For program point L38-2(lines 38 42) no Hoare annotation was computed. [2019-11-27 23:48:42,412 INFO L246 CegarLoopResult]: For program point L96(line 96) no Hoare annotation was computed. [2019-11-27 23:48:42,412 INFO L246 CegarLoopResult]: For program point L55(lines 55 59) no Hoare annotation was computed. [2019-11-27 23:48:42,413 INFO L246 CegarLoopResult]: For program point L22-1(lines 22 26) no Hoare annotation was computed. [2019-11-27 23:48:42,413 INFO L246 CegarLoopResult]: For program point L55-2(lines 55 59) no Hoare annotation was computed. [2019-11-27 23:48:42,413 INFO L242 CegarLoopResult]: At program point L22-2(lines 22 26) the Hoare annotation is: (and (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:48:42,413 INFO L246 CegarLoopResult]: For program point L22-3(lines 22 26) no Hoare annotation was computed. [2019-11-27 23:48:42,413 INFO L246 CegarLoopResult]: For program point L39-2(lines 39 40) no Hoare annotation was computed. [2019-11-27 23:48:42,413 INFO L242 CegarLoopResult]: At program point L39-3(lines 39 40) the Hoare annotation is: false [2019-11-27 23:48:42,414 INFO L246 CegarLoopResult]: For program point L39-4(lines 39 40) no Hoare annotation was computed. [2019-11-27 23:48:42,414 INFO L246 CegarLoopResult]: For program point L64(lines 64 73) no Hoare annotation was computed. [2019-11-27 23:48:42,414 INFO L242 CegarLoopResult]: At program point L81(lines 17 82) the Hoare annotation is: (and (= |ULTIMATE.start___ieee754_sqrtf_#res| (let ((.cse0 (fp.div roundNearestTiesToEven (_ +zero 8 24) (_ +zero 8 24)))) (fp.add roundNearestTiesToEven (fp.mul roundNearestTiesToEven .cse0 .cse0) .cse0))) (= ULTIMATE.start___ieee754_sqrtf_~x (fp.div currentRoundingMode (_ +zero 8 24) (_ +zero 8 24))) (= currentRoundingMode roundNearestTiesToEven)) [2019-11-27 23:48:42,414 INFO L246 CegarLoopResult]: For program point L32(lines 32 33) no Hoare annotation was computed. [2019-11-27 23:48:42,414 INFO L246 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 96) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L246 CegarLoopResult]: For program point L66(lines 66 72) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L249 CegarLoopResult]: At program point L100(lines 84 101) the Hoare annotation is: true [2019-11-27 23:48:42,415 INFO L246 CegarLoopResult]: For program point L34(lines 34 35) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L246 CegarLoopResult]: For program point L76-1(lines 76 80) no Hoare annotation was computed. [2019-11-27 23:48:42,415 INFO L242 CegarLoopResult]: At program point L76-2(lines 76 80) the Hoare annotation is: false [2019-11-27 23:48:42,416 INFO L246 CegarLoopResult]: For program point L76-3(lines 76 80) no Hoare annotation was computed. [2019-11-27 23:48:42,416 INFO L246 CegarLoopResult]: For program point L68(lines 68 71) no Hoare annotation was computed. [2019-11-27 23:48:42,429 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,430 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,431 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,432 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,433 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,434 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,435 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,436 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,437 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,437 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,438 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,439 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,440 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,440 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,441 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,442 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,443 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,443 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,444 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,444 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,445 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,445 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,449 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.11 11:48:42 BoogieIcfgContainer [2019-11-27 23:48:42,449 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-27 23:48:42,449 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-27 23:48:42,450 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-27 23:48:42,450 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-27 23:48:42,450 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.11 11:48:35" (3/4) ... [2019-11-27 23:48:42,454 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-27 23:48:42,464 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2019-11-27 23:48:42,465 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-27 23:48:42,465 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-11-27 23:48:42,496 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:48:42,496 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven [2019-11-27 23:48:42,538 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-27 23:48:42,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-27 23:48:42,540 INFO L168 Benchmark]: Toolchain (without parser) took 8866.55 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 955.0 MB in the beginning and 998.8 MB in the end (delta: -43.8 MB). Peak memory consumption was 99.4 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:42,541 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:48:42,542 INFO L168 Benchmark]: CACSL2BoogieTranslator took 420.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:42,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.34 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. [2019-11-27 23:48:42,543 INFO L168 Benchmark]: Boogie Preprocessor took 38.47 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. [2019-11-27 23:48:42,543 INFO L168 Benchmark]: RCFGBuilder took 1023.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:42,544 INFO L168 Benchmark]: TraceAbstraction took 7232.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. [2019-11-27 23:48:42,544 INFO L168 Benchmark]: Witness Printer took 88.99 ms. Allocated memory is still 1.2 GB. Free memory is still 998.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-27 23:48:42,547 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 420.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 955.0 MB in the beginning and 1.1 GB in the end (delta: -177.8 MB). Peak memory consumption was 20.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 38.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 1023.06 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 7232.21 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 101.2 MB). Peak memory consumption was 101.2 MB. Max. memory is 11.5 GB. * Witness Printer took 88.99 ms. Allocated memory is still 1.2 GB. Free memory is still 998.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven - GenericResult: Unfinished Backtranslation Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode - GenericResult: Unfinished Backtranslation unknown boogie variable currentRoundingMode * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 96]: 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: 76]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 17]: Loop Invariant [2019-11-27 23:48:42,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,557 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,558 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,558 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,559 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,560 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,560 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: (\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 13]: Loop Invariant [2019-11-27 23:48:42,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,561 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,562 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,562 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,563 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,564 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,564 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,564 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: ((\result == ~fp.add~FLOAT(~roundNearestTiesToEven, ~fp.mul~FLOAT(~roundNearestTiesToEven, ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())), ~fp.div~FLOAT(~roundNearestTiesToEven, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && 1bv32 == \result) && x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE())) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 53]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 84]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 22]: Loop Invariant [2019-11-27 23:48:42,565 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,565 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,566 WARN L417 cessorBacktranslator]: Unfinished backtranslation: Declaration ConstDeclaration not handled for expression ~roundNearestTiesToEven [2019-11-27 23:48:42,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode [2019-11-27 23:48:42,566 WARN L1295 BoogieBacktranslator]: unknown boogie variable currentRoundingMode Derived loop invariant: x == ~fp.div~FLOAT(unknown-currentRoundingMode-unknown, ~Pluszero~LONGDOUBLE(), ~Pluszero~LONGDOUBLE()) && unknown-currentRoundingMode-unknown == ~roundNearestTiesToEven - InvariantResult [Line: 39]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 33 locations, 1 error locations. Result: SAFE, OverallTime: 6.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.1s, HoareTripleCheckerStatistics: 77 SDtfs, 49 SDslu, 130 SDs, 0 SdLazy, 52 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 81 GetRequests, 60 SyntacticMatches, 2 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 4.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 7 PreInvPairs, 11 NumberOfFragments, 73 HoareAnnotationTreeSize, 7 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 7 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 4.5s InterpolantComputationTime, 41 NumberOfCodeBlocks, 41 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 76 ConstructedInterpolants, 5 QuantifiedInterpolants, 4394 SizeOfPredicates, 17 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...