./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63905375af38d9971341930078b6c47230c38fd ......................................................................................................................................................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash b63905375af38d9971341930078b6c47230c38fd ............................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:22,168 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:22,170 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:22,183 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:22,184 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:22,185 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:22,186 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:22,189 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:22,191 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:22,192 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:22,193 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:22,194 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:22,195 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:22,196 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:22,198 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:22,199 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:22,200 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:22,203 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:22,205 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:22,207 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:22,209 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:22,210 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:22,215 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:22,215 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:22,215 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:22,217 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:22,218 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:22,219 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:22,220 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:22,222 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:22,223 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:22,224 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:22,224 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:22,224 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:22,226 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:22,227 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:22,228 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:40:22,253 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:22,254 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:22,257 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:22,258 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:22,259 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:22,259 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:22,259 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:22,259 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:22,259 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:22,260 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:40:22,261 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:22,261 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:22,261 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:22,261 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:22,261 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:22,263 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:22,263 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:22,263 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:22,263 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:22,264 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:22,264 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:22,264 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:22,264 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:22,264 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:22,264 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:22,265 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:22,265 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:22,265 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:40:22,265 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:22,266 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:40:22,266 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-11-28 17:40:22,322 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:22,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:22,345 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:22,349 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:22,349 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:22,350 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:22,415 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe4cf289/82fb764e4a824e10a66c81ad9df49526/FLAG07b1ced66 [2018-11-28 17:40:22,893 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:22,896 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:22,908 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe4cf289/82fb764e4a824e10a66c81ad9df49526/FLAG07b1ced66 [2018-11-28 17:40:23,309 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fe4cf289/82fb764e4a824e10a66c81ad9df49526 [2018-11-28 17:40:23,313 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:23,314 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:23,315 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:23,315 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:23,319 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:23,320 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,324 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5af40c45 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23, skipping insertion in model container [2018-11-28 17:40:23,324 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,333 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:23,356 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:23,630 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:23,638 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:23,689 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:23,722 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:23,723 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23 WrapperNode [2018-11-28 17:40:23,723 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:23,724 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:23,724 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:23,724 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:23,740 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,757 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,766 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:23,767 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:23,767 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:23,767 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:23,780 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,780 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,782 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,791 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,897 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,903 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,908 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... [2018-11-28 17:40:23,913 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:23,915 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:23,918 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:23,918 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:23,919 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:23,987 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2018-11-28 17:40:23,987 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2018-11-28 17:40:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:23,988 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-11-28 17:40:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:40:23,988 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-11-28 17:40:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:23,989 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:23,989 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:40:23,990 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-28 17:40:23,990 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-28 17:40:24,447 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:24,448 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:24,448 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:24 BoogieIcfgContainer [2018-11-28 17:40:24,448 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:24,449 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:24,449 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:24,453 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:24,453 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:23" (1/3) ... [2018-11-28 17:40:24,454 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23404f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:24, skipping insertion in model container [2018-11-28 17:40:24,454 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:23" (2/3) ... [2018-11-28 17:40:24,455 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23404f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:24, skipping insertion in model container [2018-11-28 17:40:24,455 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:24" (3/3) ... [2018-11-28 17:40:24,457 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:24,468 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:24,477 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:24,497 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:24,538 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:24,539 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:24,539 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:24,539 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:24,539 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:24,540 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:24,540 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:24,540 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:24,540 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:24,570 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-28 17:40:24,576 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 17:40:24,577 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:24,578 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:24,580 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:24,586 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:24,586 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-11-28 17:40:24,588 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:24,589 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:24,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:24,644 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:24,644 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:24,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:24,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:24,869 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:24,907 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:24 BoogieIcfgContainer [2018-11-28 17:40:24,908 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:24,908 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:24,908 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:24,908 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:24,909 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:24" (3/4) ... [2018-11-28 17:40:24,913 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:24,913 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:24,914 INFO L168 Benchmark]: Toolchain (without parser) took 1600.51 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -112.1 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,916 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:24,917 INFO L168 Benchmark]: CACSL2BoogieTranslator took 408.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,918 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.56 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,919 INFO L168 Benchmark]: Boogie Preprocessor took 147.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -161.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,920 INFO L168 Benchmark]: RCFGBuilder took 533.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,921 INFO L168 Benchmark]: TraceAbstraction took 458.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:24,922 INFO L168 Benchmark]: Witness Printer took 4.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:24,927 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 408.28 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 42.56 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 147.47 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -161.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 533.34 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.3 MB). Peak memory consumption was 19.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 458.57 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.8 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * Witness Printer took 4.97 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of bitwiseOr at line 33, overapproximation of someUnaryDOUBLEoperation at line 15, overapproximation of someBinaryArithmeticDOUBLEoperation at line 46, overapproximation of bitwiseAnd at line 32, overapproximation of someBinaryDOUBLEComparisonOperation at line 60. Possible FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=13, \old(C1)=28, \old(C2)=16, \old(C3)=31, \old(C4)=15, \old(C5)=25, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-4, x={24:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=12, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, x={24:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=12, \result=27, a=12, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, exp=-3, r=27] [L58] RET, EXPR sqrt_custom(x) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, sqrt_custom(x)=27, x=12] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 0.3s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:40:27,379 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:27,383 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:27,409 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:27,410 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:27,412 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:27,415 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:27,418 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:27,421 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:27,424 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:27,427 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:27,428 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:27,428 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:27,429 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:27,433 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:27,440 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:27,441 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:27,443 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:27,449 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:27,450 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:27,452 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:27,456 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:27,463 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:27,464 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:27,465 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:27,466 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:27,467 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:27,472 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:27,473 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:27,474 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:27,474 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:27,474 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:27,477 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:27,477 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:27,478 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:27,480 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:27,482 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:27,510 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:27,513 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:27,514 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:27,515 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:27,515 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:27,515 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:27,515 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:27,517 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:27,518 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:27,518 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:27,518 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:27,518 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:27,518 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:27,519 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:27,520 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:27,520 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:27,520 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:27,520 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:27,520 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:27,523 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:27,523 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:27,523 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:27,523 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:27,523 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:27,525 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:27,525 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:27,526 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:27,528 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> b63905375af38d9971341930078b6c47230c38fd [2018-11-28 17:40:27,599 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:27,616 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:27,623 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:27,625 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:27,625 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:27,626 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:27,690 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9581f5aa1/ed2706d7eb6845f5b405258fecf14b7e/FLAG544ebde9b [2018-11-28 17:40:28,110 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:28,111 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:28,118 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9581f5aa1/ed2706d7eb6845f5b405258fecf14b7e/FLAG544ebde9b [2018-11-28 17:40:28,480 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9581f5aa1/ed2706d7eb6845f5b405258fecf14b7e [2018-11-28 17:40:28,485 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:28,488 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:28,489 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:28,489 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:28,494 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:28,495 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:28,500 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b804272 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28, skipping insertion in model container [2018-11-28 17:40:28,500 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:28,509 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:28,538 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:28,795 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:28,803 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:28,843 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:28,890 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:28,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28 WrapperNode [2018-11-28 17:40:28,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:28,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:28,892 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:28,892 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:28,903 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:28,918 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:28,928 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:28,929 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:28,929 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:28,929 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:28,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:28,939 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,007 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,007 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,036 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,040 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... [2018-11-28 17:40:29,055 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:29,056 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:29,056 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:29,056 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:29,057 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:29,126 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2018-11-28 17:40:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2018-11-28 17:40:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:29,127 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:29,127 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.alloc [2018-11-28 17:40:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-11-28 17:40:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-28 17:40:29,128 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-28 17:40:29,128 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-11-28 17:40:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2018-11-28 17:40:29,129 INFO L130 BoogieDeclarations]: Found specification of procedure sqrt_custom [2018-11-28 17:40:29,129 INFO L138 BoogieDeclarations]: Found implementation of procedure sqrt_custom [2018-11-28 17:40:31,693 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-11-28 17:40:33,028 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:33,029 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:33,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:33 BoogieIcfgContainer [2018-11-28 17:40:33,029 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:33,031 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:33,031 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:33,034 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:33,035 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:28" (1/3) ... [2018-11-28 17:40:33,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e812ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:33, skipping insertion in model container [2018-11-28 17:40:33,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:28" (2/3) ... [2018-11-28 17:40:33,036 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e812ad5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:33, skipping insertion in model container [2018-11-28 17:40:33,036 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:33" (3/3) ... [2018-11-28 17:40:33,038 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2018-11-28 17:40:33,047 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:33,055 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:33,072 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:33,105 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:33,106 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:33,106 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:33,107 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:33,107 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:33,107 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:33,107 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:33,107 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:33,108 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:33,125 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states. [2018-11-28 17:40:33,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 17:40:33,130 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:33,130 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:33,132 INFO L423 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:33,137 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:33,137 INFO L82 PathProgramCache]: Analyzing trace with hash 230068877, now seen corresponding path program 1 times [2018-11-28 17:40:33,142 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:33,142 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:33,150 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:34,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:36,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:36,853 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:36,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:36 BoogieIcfgContainer [2018-11-28 17:40:36,913 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:36,913 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:36,913 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:36,913 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:36,915 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:33" (3/4) ... [2018-11-28 17:40:36,918 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-28 17:40:36,993 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:36,993 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:36,994 INFO L168 Benchmark]: Toolchain (without parser) took 8508.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 948.7 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,996 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:36,997 INFO L168 Benchmark]: CACSL2BoogieTranslator took 402.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,997 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:36,999 INFO L168 Benchmark]: Boogie Preprocessor took 126.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,000 INFO L168 Benchmark]: RCFGBuilder took 3973.84 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,001 INFO L168 Benchmark]: TraceAbstraction took 3881.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:37,002 INFO L168 Benchmark]: Witness Printer took 80.24 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:37,006 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 402.35 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 37.05 ms. Allocated memory is still 1.0 GB. Free memory was 937.9 MB in the beginning and 932.5 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 126.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 932.5 MB in the beginning and 1.1 GB in the end (delta: -185.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3973.84 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: 17.7 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3881.93 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 25.5 MB). Peak memory consumption was 25.5 MB. Max. memory is 11.5 GB. * Witness Printer took 80.24 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: - CounterExampleResult [Line: 9]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L12] double C0 = 1.414213538; [L13] double C1 = 0.229761391; [L14] double C2 = 1.296735525; [L15] double C3 = -0.901098370; [L16] double C4 = 0.493553400; [L17] double C5 = -0.118958666; VAL [\old(C0)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000030, \old(C1)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000010, \old(C2)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000015, \old(C3)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000020, \old(C4)=0.000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000025, \old(C5)=0.0000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000049, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [L58] CALL, EXPR sqrt_custom(x) VAL [\old(a)=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L26] union u x; [L27] double r; [L28] int exp; [L30] x.d = a [L32] EXPR x.i[0] [L32] exp = (x.i[0] & 0x7FF00000) >> 20 [L33] EXPR x.i[0] [L33] x.i[0] = (x.i[0] & 0x800FFFFF) | 0x3FF00000 [L34] EXPR x.d [L34] r = x.d * 0.5 [L36] r = C1+C2+(C3+(C4+C5*r)*r)*r VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=512, r=-13704217330150313000000000000, x={2:0}] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [\old(a)=9731564545.6875, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-13704217330150313000000000000, x={2:0}] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [\old(a)=9731564545.6875, \result=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, a=9731564545.6875, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, exp=513, r=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011] [L58] RET, EXPR sqrt_custom(x) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, sqrt_custom(x)=-0.00000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000005445454974407011, x=9731564545.6875] [L58] y = sqrt_custom(x) [L60] CALL __VERIFIER_assert(y >= 0. && y <= 1e6) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L9] COND TRUE !(cond) VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] [L9] __VERIFIER_error() VAL [\old(cond)=0, C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 5 procedures, 25 locations, 1 error locations. UNSAFE Result, 3.8s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=25occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...