./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 0ed9222f 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 0.1.24-0ed9222-m [2019-01-12 07:58:03,327 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:58:03,329 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:58:03,345 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:58:03,345 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:58:03,347 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:58:03,348 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:58:03,355 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:58:03,358 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:58:03,365 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:58:03,366 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:58:03,367 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:58:03,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:58:03,369 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:58:03,374 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:58:03,375 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:58:03,376 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:58:03,379 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:58:03,384 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:58:03,389 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:58:03,391 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:58:03,394 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:58:03,399 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:58:03,399 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:58:03,399 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:58:03,400 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:58:03,401 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:58:03,401 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:58:03,402 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:58:03,403 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:58:03,403 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:58:03,404 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:58:03,404 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:58:03,404 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:58:03,405 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:58:03,406 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:58:03,406 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 07:58:03,421 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:58:03,422 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:58:03,423 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:58:03,423 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:58:03,423 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:58:03,423 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:58:03,424 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:58:03,425 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:58:03,425 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:58:03,425 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:58:03,425 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:58:03,425 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:58:03,426 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:58:03,426 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:58:03,426 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:58:03,426 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:58:03,426 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:58:03,426 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:58:03,427 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:58:03,427 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:58:03,427 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 07:58:03,427 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:58:03,427 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 07:58:03,427 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 [2019-01-12 07:58:03,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:58:03,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:58:03,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:58:03,483 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:58:03,484 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:58:03,485 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:03,547 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393970725/19ec20a96da445dca8bdb78aab9298d5/FLAG888a35c98 [2019-01-12 07:58:04,029 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:58:04,029 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:04,037 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393970725/19ec20a96da445dca8bdb78aab9298d5/FLAG888a35c98 [2019-01-12 07:58:04,391 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/393970725/19ec20a96da445dca8bdb78aab9298d5 [2019-01-12 07:58:04,396 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:58:04,397 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:58:04,399 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:58:04,399 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:58:04,404 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:58:04,405 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,409 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@65b41bf8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04, skipping insertion in model container [2019-01-12 07:58:04,409 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,418 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:58:04,442 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:58:04,712 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:58:04,723 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:58:04,769 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:58:04,804 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:58:04,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04 WrapperNode [2019-01-12 07:58:04,806 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:58:04,807 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:58:04,807 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:58:04,807 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:58:04,817 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,864 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:58:04,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:58:04,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:58:04,865 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:58:04,939 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,940 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,943 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,943 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,963 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,972 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (1/1) ... [2019-01-12 07:58:04,980 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:58:04,980 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:58:04,980 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:58:04,980 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:58:04,981 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (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 [2019-01-12 07:58:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 07:58:05,047 INFO L130 BoogieDeclarations]: Found specification of procedure read~real [2019-01-12 07:58:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 07:58:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2019-01-12 07:58:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:58:05,048 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:58:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 07:58:05,048 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 07:58:05,438 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:58:05,439 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:58:05,440 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:05 BoogieIcfgContainer [2019-01-12 07:58:05,440 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:58:05,441 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:58:05,442 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:58:05,447 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:58:05,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:58:04" (1/3) ... [2019-01-12 07:58:05,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbf868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:58:05, skipping insertion in model container [2019-01-12 07:58:05,451 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:04" (2/3) ... [2019-01-12 07:58:05,451 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bbbf868 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:58:05, skipping insertion in model container [2019-01-12 07:58:05,452 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:05" (3/3) ... [2019-01-12 07:58:05,454 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:05,463 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:58:05,473 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:58:05,493 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:58:05,526 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:58:05,527 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:58:05,528 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:58:05,528 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:58:05,528 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:58:05,528 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:58:05,529 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:58:05,529 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:58:05,529 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:58:05,546 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-12 07:58:05,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-12 07:58:05,555 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:58:05,556 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:58:05,558 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:58:05,563 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:58:05,563 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2019-01-12 07:58:05,565 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 07:58:05,566 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 07:58:05,615 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:58:05,616 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:58:05,616 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 07:58:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:58:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:58:05,785 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:58:05,816 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:58:05 BoogieIcfgContainer [2019-01-12 07:58:05,816 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:58:05,817 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:58:05,817 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:58:05,817 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:58:05,818 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:05" (3/4) ... [2019-01-12 07:58:05,823 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 07:58:05,823 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:58:05,824 INFO L168 Benchmark]: Toolchain (without parser) took 1427.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 947.3 MB in the beginning and 1.1 GB in the end (delta: -147.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:58:05,827 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 07:58:05,827 INFO L168 Benchmark]: CACSL2BoogieTranslator took 407.09 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:05,828 INFO L168 Benchmark]: Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:05,830 INFO L168 Benchmark]: Boogie Preprocessor took 114.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:05,831 INFO L168 Benchmark]: RCFGBuilder took 460.32 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. [2019-01-12 07:58:05,832 INFO L168 Benchmark]: TraceAbstraction took 374.97 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:05,833 INFO L168 Benchmark]: Witness Printer took 6.23 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. [2019-01-12 07:58:05,839 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 407.09 ms. Allocated memory is still 1.0 GB. Free memory was 947.3 MB in the beginning and 936.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 58.32 ms. Allocated memory is still 1.0 GB. Free memory was 936.6 MB in the beginning and 931.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 114.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 138.9 MB). Free memory was 931.2 MB in the beginning and 1.1 GB in the end (delta: -194.7 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 460.32 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 374.97 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: 13.3 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * Witness Printer took 6.23 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: 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 [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L53] double x,y; [L55] x = __VERIFIER_nondet_double() [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 [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L58] y = sqrt_custom(x) [L9] COND TRUE !(cond) VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] [L9] __VERIFIER_error() VAL [C0=707106769/500000000, C1=229761391/1000000000, C2=51869421/40000000, C4=2467767/5000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 0.2s 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=12occurred 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, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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 0.1.24-0ed9222-m [2019-01-12 07:58:08,157 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 07:58:08,159 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 07:58:08,172 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 07:58:08,172 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 07:58:08,174 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 07:58:08,175 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 07:58:08,177 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 07:58:08,179 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 07:58:08,180 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 07:58:08,181 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 07:58:08,182 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 07:58:08,183 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 07:58:08,184 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 07:58:08,186 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 07:58:08,186 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 07:58:08,187 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 07:58:08,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 07:58:08,192 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 07:58:08,194 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 07:58:08,195 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 07:58:08,197 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 07:58:08,200 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 07:58:08,200 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 07:58:08,200 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 07:58:08,202 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 07:58:08,203 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 07:58:08,204 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 07:58:08,206 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 07:58:08,207 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 07:58:08,207 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 07:58:08,208 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 07:58:08,209 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 07:58:08,209 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 07:58:08,210 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 07:58:08,211 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 07:58:08,212 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 07:58:08,238 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 07:58:08,239 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 07:58:08,241 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 07:58:08,241 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 07:58:08,241 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 07:58:08,241 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 07:58:08,241 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 07:58:08,242 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 07:58:08,243 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 07:58:08,244 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 07:58:08,244 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 07:58:08,244 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 07:58:08,244 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 07:58:08,244 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 07:58:08,245 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 07:58:08,245 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 07:58:08,246 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 07:58:08,246 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 07:58:08,246 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 07:58:08,246 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 07:58:08,246 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 07:58:08,246 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 07:58:08,249 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 07:58:08,249 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 07:58:08,249 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 07:58:08,250 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 07:58:08,250 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 07:58:08,251 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 07:58:08,251 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 07:58:08,251 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 07:58:08,251 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 [2019-01-12 07:58:08,301 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 07:58:08,326 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 07:58:08,330 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 07:58:08,332 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 07:58:08,332 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 07:58:08,333 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:08,392 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4087e60f/bac56cb9fa0b4d0fad72d9d15f23752a/FLAG3ac868a18 [2019-01-12 07:58:08,883 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 07:58:08,886 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:08,904 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4087e60f/bac56cb9fa0b4d0fad72d9d15f23752a/FLAG3ac868a18 [2019-01-12 07:58:09,201 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d4087e60f/bac56cb9fa0b4d0fad72d9d15f23752a [2019-01-12 07:58:09,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 07:58:09,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 07:58:09,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 07:58:09,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 07:58:09,212 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 07:58:09,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,218 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3bf17a6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09, skipping insertion in model container [2019-01-12 07:58:09,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,229 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 07:58:09,255 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 07:58:09,518 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:58:09,532 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 07:58:09,585 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 07:58:09,631 INFO L195 MainTranslator]: Completed translation [2019-01-12 07:58:09,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09 WrapperNode [2019-01-12 07:58:09,632 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 07:58:09,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 07:58:09,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 07:58:09,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 07:58:09,642 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,656 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,757 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 07:58:09,758 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 07:58:09,758 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 07:58:09,758 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 07:58:09,766 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,771 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,771 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,783 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,785 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,789 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (1/1) ... [2019-01-12 07:58:09,795 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 07:58:09,796 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 07:58:09,796 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 07:58:09,796 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 07:58:09,798 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (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 [2019-01-12 07:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intFLOATTYPE8 [2019-01-12 07:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE8 [2019-01-12 07:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 07:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2019-01-12 07:58:09,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 07:58:09,860 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 07:58:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 07:58:09,860 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2019-01-12 07:58:12,251 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 07:58:13,355 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 07:58:13,356 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 07:58:13,364 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:13 BoogieIcfgContainer [2019-01-12 07:58:13,367 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 07:58:13,369 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 07:58:13,369 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 07:58:13,376 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 07:58:13,380 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 07:58:09" (1/3) ... [2019-01-12 07:58:13,381 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca6c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:58:13, skipping insertion in model container [2019-01-12 07:58:13,381 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 07:58:09" (2/3) ... [2019-01-12 07:58:13,385 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4ca6c114 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 07:58:13, skipping insertion in model container [2019-01-12 07:58:13,386 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:13" (3/3) ... [2019-01-12 07:58:13,388 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_poly2_false-unreach-call.c [2019-01-12 07:58:13,416 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 07:58:13,439 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 07:58:13,462 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 07:58:13,496 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 07:58:13,497 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 07:58:13,497 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 07:58:13,497 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 07:58:13,498 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 07:58:13,498 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 07:58:13,498 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 07:58:13,498 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 07:58:13,498 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 07:58:13,510 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-12 07:58:13,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-12 07:58:13,516 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 07:58:13,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-12 07:58:13,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 07:58:13,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 07:58:13,524 INFO L82 PathProgramCache]: Analyzing trace with hash 1804965382, now seen corresponding path program 1 times [2019-01-12 07:58:13,529 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 07:58:13,529 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 [2019-01-12 07:58:13,538 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 07:58:27,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:58:32,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 07:58:32,725 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 07:58:32,767 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 07:58:32 BoogieIcfgContainer [2019-01-12 07:58:32,767 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 07:58:32,768 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 07:58:32,768 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 07:58:32,768 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 07:58:32,769 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 07:58:13" (3/4) ... [2019-01-12 07:58:32,771 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-12 07:58:32,831 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 07:58:32,831 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 07:58:32,832 INFO L168 Benchmark]: Toolchain (without parser) took 23626.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -99.6 MB). Peak memory consumption was 15.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,834 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. [2019-01-12 07:58:32,835 INFO L168 Benchmark]: CACSL2BoogieTranslator took 424.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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. [2019-01-12 07:58:32,835 INFO L168 Benchmark]: Boogie Procedure Inliner took 124.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,836 INFO L168 Benchmark]: Boogie Preprocessor took 37.41 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,836 INFO L168 Benchmark]: RCFGBuilder took 3571.65 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,837 INFO L168 Benchmark]: TraceAbstraction took 19398.85 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,838 INFO L168 Benchmark]: Witness Printer took 63.57 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: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 07:58:32,842 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 424.41 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 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 124.81 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -169.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.41 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * RCFGBuilder took 3571.65 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: 18.9 MB). Peak memory consumption was 18.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 19398.85 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * Witness Printer took 63.57 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: 6.8 MB). Peak memory consumption was 6.8 MB. 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 [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() [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 [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L38] COND TRUE exp % 2 == 0 [L39] exp++ VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L45] x.i[0] = (exp/2 + 511) << 20 [L46] EXPR x.d [L46] r = r * x.d [L48] return r; [L48] return r; VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L58] y = sqrt_custom(x) [L9] COND TRUE !(cond) VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] [L9] __VERIFIER_error() VAL [C0=1.414213538, C1=0.229761391, C2=1.296735525, C3=-0.90109837, C4=0.4935534, C5=-0.118958666] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. UNSAFE Result, 19.2s 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=12occurred 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, 14.3s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 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...