./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/float-benchs/sqrt_Householder_interval_true-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_Householder_interval_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 044666208476da4ad4fcec9a18fadf3bde3ce58f ......................................................................................................................................................................................................................................... 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_Householder_interval_true-unreach-call.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 044666208476da4ad4fcec9a18fadf3bde3ce58f ......................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 08:38:18,631 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:38:18,633 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:38:18,645 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:38:18,646 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:38:18,647 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:38:18,648 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:38:18,650 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:38:18,652 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:38:18,653 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:38:18,654 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:38:18,654 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:38:18,656 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:38:18,657 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:38:18,658 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:38:18,659 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:38:18,660 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:38:18,662 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:38:18,665 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:38:18,667 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:38:18,668 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:38:18,669 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:38:18,672 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:38:18,673 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:38:18,673 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:38:18,674 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:38:18,676 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:38:18,677 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:38:18,677 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:38:18,680 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:38:18,680 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:38:18,681 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:38:18,681 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:38:18,681 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:38:18,682 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:38:18,684 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:38:18,684 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 08:38:18,700 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:38:18,700 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:38:18,701 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:38:18,702 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:38:18,702 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:38:18,702 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:38:18,702 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:38:18,703 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 08:38:18,703 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:38:18,703 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:38:18,704 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:38:18,705 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:38:18,706 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:38:18,706 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:38:18,706 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:38:18,706 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:38:18,707 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:38:18,707 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:38:18,707 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:38:18,707 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:38:18,707 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 08:38:18,707 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:38:18,708 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 08:38:18,709 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 -> 044666208476da4ad4fcec9a18fadf3bde3ce58f [2019-01-12 08:38:18,747 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:38:18,767 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:38:18,773 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:38:18,775 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:38:18,775 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:38:18,776 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:18,850 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292588df8/a4f15a05547441d583885e478cc735d7/FLAG468a83d89 [2019-01-12 08:38:19,246 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:38:19,247 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:19,253 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292588df8/a4f15a05547441d583885e478cc735d7/FLAG468a83d89 [2019-01-12 08:38:19,634 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/292588df8/a4f15a05547441d583885e478cc735d7 [2019-01-12 08:38:19,639 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:38:19,641 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:38:19,643 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:38:19,643 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:38:19,647 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:38:19,648 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:19,652 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6681774 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19, skipping insertion in model container [2019-01-12 08:38:19,652 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:19,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:38:19,680 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:38:19,932 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:38:19,939 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:38:19,965 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:38:19,987 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:38:19,989 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19 WrapperNode [2019-01-12 08:38:19,989 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:38:19,991 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:38:19,991 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:38:19,991 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:38:20,002 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,011 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,038 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:38:20,039 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:38:20,039 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:38:20,039 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:38:20,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,052 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,053 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,062 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,077 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (1/1) ... [2019-01-12 08:38:20,080 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:38:20,081 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:38:20,081 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:38:20,081 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:38:20,083 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (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 08:38:20,203 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:38:20,203 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:38:20,423 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:38:20,423 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-12 08:38:20,425 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:38:20 BoogieIcfgContainer [2019-01-12 08:38:20,425 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:38:20,426 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:38:20,426 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:38:20,430 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:38:20,430 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:38:19" (1/3) ... [2019-01-12 08:38:20,431 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ba900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:38:20, skipping insertion in model container [2019-01-12 08:38:20,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:19" (2/3) ... [2019-01-12 08:38:20,432 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7a1ba900 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:38:20, skipping insertion in model container [2019-01-12 08:38:20,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:38:20" (3/3) ... [2019-01-12 08:38:20,434 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:20,443 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:38:20,450 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:38:20,465 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:38:20,494 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:38:20,495 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:38:20,495 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:38:20,496 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:38:20,496 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:38:20,496 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:38:20,496 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:38:20,496 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:38:20,496 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:38:20,509 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-12 08:38:20,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 08:38:20,516 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:38:20,517 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:38:20,519 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:38:20,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:38:20,525 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2019-01-12 08:38:20,526 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 08:38:20,527 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 08:38:20,568 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:38:20,569 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:38:20,569 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 08:38:20,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:38:20,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-12 08:38:20,642 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-12 08:38:20,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 08:38:20 BoogieIcfgContainer [2019-01-12 08:38:20,669 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 08:38:20,669 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 08:38:20,669 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 08:38:20,670 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 08:38:20,671 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:38:20" (3/4) ... [2019-01-12 08:38:20,675 INFO L147 WitnessPrinter]: No result that supports witness generation found [2019-01-12 08:38:20,675 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 08:38:20,676 INFO L168 Benchmark]: Toolchain (without parser) took 1036.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -149.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:38:20,678 INFO L168 Benchmark]: CDTParser took 0.44 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 08:38:20,679 INFO L168 Benchmark]: CACSL2BoogieTranslator took 346.90 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. [2019-01-12 08:38:20,680 INFO L168 Benchmark]: Boogie Procedure Inliner took 48.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:38:20,680 INFO L168 Benchmark]: Boogie Preprocessor took 41.49 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. [2019-01-12 08:38:20,681 INFO L168 Benchmark]: RCFGBuilder took 344.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2019-01-12 08:38:20,683 INFO L168 Benchmark]: TraceAbstraction took 242.61 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:38:20,684 INFO L168 Benchmark]: Witness Printer took 5.70 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 08:38:20,690 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 346.90 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 48.48 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 41.49 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. * RCFGBuilder took 344.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -179.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 242.61 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: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 5.70 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: 15]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 51, overapproximation of someUnaryDOUBLEoperation at line 27, overapproximation of someBinaryArithmeticDOUBLEoperation at line 39. Possible FailurePath: [L17] double _EPS = 1e-6; VAL [_EPS=1/1000000] [L44] double d, r; [L46] d = __VERIFIER_nondet_double() [L21] double xn, xnp1, residu, lsup, linf; [L22] int i, cond; VAL [_EPS=1/1000000] [L23] COND TRUE Input <= 1.0 [L23] xn = 1.0 VAL [_EPS=1/1000000] [L24] xnp1 = xn [L25] residu = 2.0*_EPS*(xn+xnp1) [L26] lsup = _EPS * (xn+xnp1) [L27] linf = -lsup [L28] cond = ((residu > lsup) || (residu < linf)) [L29] i = 0 VAL [_EPS=1/1000000] [L30] COND FALSE !(\read(cond)) VAL [_EPS=1/1000000] [L39] return 1.0 / xnp1; VAL [_EPS=1/1000000] [L49] r = SqrtR(d) [L15] COND TRUE !(cond) VAL [_EPS=1/1000000] [L15] __VERIFIER_error() VAL [_EPS=1/1000000] - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. UNSAFE Result, 0.1s 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=14occurred 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, 9 NumberOfCodeBlocks, 9 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 08:38:23,016 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 08:38:23,017 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 08:38:23,030 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 08:38:23,031 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 08:38:23,032 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 08:38:23,034 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 08:38:23,036 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 08:38:23,038 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 08:38:23,039 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 08:38:23,040 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 08:38:23,041 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 08:38:23,042 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 08:38:23,043 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 08:38:23,044 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 08:38:23,045 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 08:38:23,047 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 08:38:23,049 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 08:38:23,051 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 08:38:23,053 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 08:38:23,054 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 08:38:23,056 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 08:38:23,059 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 08:38:23,059 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 08:38:23,060 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 08:38:23,061 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 08:38:23,062 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 08:38:23,063 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 08:38:23,065 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 08:38:23,066 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 08:38:23,066 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 08:38:23,067 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 08:38:23,068 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 08:38:23,068 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 08:38:23,069 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 08:38:23,071 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 08:38:23,071 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2019-01-12 08:38:23,088 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 08:38:23,088 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 08:38:23,090 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 08:38:23,090 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 08:38:23,090 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 08:38:23,091 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 08:38:23,091 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 08:38:23,091 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 08:38:23,091 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 08:38:23,091 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 08:38:23,091 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 08:38:23,093 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 08:38:23,093 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2019-01-12 08:38:23,093 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2019-01-12 08:38:23,093 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 08:38:23,093 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 08:38:23,094 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 08:38:23,094 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 08:38:23,095 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 08:38:23,095 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 08:38:23,095 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 08:38:23,095 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 08:38:23,095 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 08:38:23,096 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 08:38:23,096 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 08:38:23,096 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 08:38:23,096 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2019-01-12 08:38:23,096 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 08:38:23,096 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2019-01-12 08:38:23,097 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2019-01-12 08:38:23,098 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 -> 044666208476da4ad4fcec9a18fadf3bde3ce58f [2019-01-12 08:38:23,142 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 08:38:23,156 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 08:38:23,160 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 08:38:23,162 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 08:38:23,162 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 08:38:23,163 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/float-benchs/sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:23,225 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebb74cf9/8f1ea424a2bb48f8a0b5e4a7b2a985ab/FLAG82c0a290d [2019-01-12 08:38:23,722 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 08:38:23,723 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/float-benchs/sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:23,729 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebb74cf9/8f1ea424a2bb48f8a0b5e4a7b2a985ab/FLAG82c0a290d [2019-01-12 08:38:24,087 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bebb74cf9/8f1ea424a2bb48f8a0b5e4a7b2a985ab [2019-01-12 08:38:24,091 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 08:38:24,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 08:38:24,095 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 08:38:24,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 08:38:24,100 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 08:38:24,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,105 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@70ead93f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24, skipping insertion in model container [2019-01-12 08:38:24,106 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,117 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 08:38:24,145 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 08:38:24,452 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:38:24,468 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 08:38:24,511 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 08:38:24,531 INFO L195 MainTranslator]: Completed translation [2019-01-12 08:38:24,532 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24 WrapperNode [2019-01-12 08:38:24,532 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 08:38:24,533 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 08:38:24,533 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 08:38:24,534 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 08:38:24,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,557 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,586 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 08:38:24,586 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 08:38:24,586 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 08:38:24,586 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 08:38:24,598 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,603 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,610 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,623 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,639 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,643 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (1/1) ... [2019-01-12 08:38:24,646 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 08:38:24,647 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 08:38:24,647 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 08:38:24,647 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 08:38:24,648 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (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 08:38:24,786 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 08:38:24,786 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 08:38:34,347 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 08:38:34,347 INFO L286 CfgBuilder]: Removed 9 assue(true) statements. [2019-01-12 08:38:34,348 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:38:34 BoogieIcfgContainer [2019-01-12 08:38:34,349 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 08:38:34,350 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 08:38:34,350 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 08:38:34,354 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 08:38:34,354 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 08:38:24" (1/3) ... [2019-01-12 08:38:34,355 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec5567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:38:34, skipping insertion in model container [2019-01-12 08:38:34,355 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 08:38:24" (2/3) ... [2019-01-12 08:38:34,356 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7fec5567 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 08:38:34, skipping insertion in model container [2019-01-12 08:38:34,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 08:38:34" (3/3) ... [2019-01-12 08:38:34,359 INFO L112 eAbstractionObserver]: Analyzing ICFG sqrt_Householder_interval_true-unreach-call.c [2019-01-12 08:38:34,370 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 08:38:34,379 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 08:38:34,397 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 08:38:34,427 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 08:38:34,428 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 08:38:34,429 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 08:38:34,429 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 08:38:34,430 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 08:38:34,430 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 08:38:34,430 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 08:38:34,430 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 08:38:34,430 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 08:38:34,447 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-12 08:38:34,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 08:38:34,455 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:38:34,456 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:38:34,459 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:38:34,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:38:34,466 INFO L82 PathProgramCache]: Analyzing trace with hash -590190995, now seen corresponding path program 1 times [2019-01-12 08:38:34,471 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:38:34,472 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 08:38:34,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:38:35,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:38:36,116 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:38:36,253 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 08:38:36,253 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2019-01-12 08:38:36,283 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 08:38:36,284 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 08:38:36,289 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-12 08:38:36,301 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-12 08:38:36,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 08:38:36,305 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 5 states. [2019-01-12 08:38:43,356 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 08:38:43,356 INFO L93 Difference]: Finished difference Result 25 states and 30 transitions. [2019-01-12 08:38:43,359 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-12 08:38:43,360 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2019-01-12 08:38:43,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 08:38:43,370 INFO L225 Difference]: With dead ends: 25 [2019-01-12 08:38:43,371 INFO L226 Difference]: Without dead ends: 12 [2019-01-12 08:38:43,375 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2019-01-12 08:38:43,394 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12 states. [2019-01-12 08:38:43,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12 to 12. [2019-01-12 08:38:43,410 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-12 08:38:43,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2019-01-12 08:38:43,413 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 9 [2019-01-12 08:38:43,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 08:38:43,413 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2019-01-12 08:38:43,413 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-12 08:38:43,414 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2019-01-12 08:38:43,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2019-01-12 08:38:43,414 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 08:38:43,414 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 08:38:43,416 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 08:38:43,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 08:38:43,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1184816367, now seen corresponding path program 1 times [2019-01-12 08:38:43,417 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2019-01-12 08:38:43,417 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 3 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with mathsat -unsat_core_generation=3 [2019-01-12 08:38:43,431 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 08:38:50,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 08:38:50,901 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-12 08:38:53,378 WARN L838 $PredicateComparison]: unable to prove that (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (= (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xn~0) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0)))))) (= c_~_EPS~0 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0)))) is different from false [2019-01-12 08:38:55,485 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse8 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse7) .cse8)) (.cse5 (fp.mul roundNearestTiesToEven .cse7 .cse8))) (let ((.cse2 (fp.gt .cse4 .cse5)) (.cse1 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse6)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (= (fp.div roundNearestTiesToEven .cse6 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))) (.cse0 (fp.lt .cse4 (fp.neg .cse5))) (.cse3 (= (bvadd c_ULTIMATE.start_SqrtR_~cond~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (not .cse0) .cse1 (not .cse2) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32))) (and .cse1 .cse3 .cse2) (and .cse1 .cse0 .cse3))))) is different from false [2019-01-12 08:38:57,871 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse7 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse8 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse4 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse7) .cse8)) (.cse5 (fp.mul roundNearestTiesToEven .cse7 .cse8))) (let ((.cse2 (fp.gt .cse4 .cse5)) (.cse1 (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse6)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (= (fp.div roundNearestTiesToEven .cse6 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))) (.cse0 (fp.lt .cse4 (fp.neg .cse5))) (.cse3 (= (bvadd c_ULTIMATE.start_SqrtR_~cond~0 (_ bv4294967295 32)) (_ bv0 32)))) (or (and (not .cse0) .cse1 (not .cse2) (= c_ULTIMATE.start_SqrtR_~cond~0 (_ bv0 32))) (and .cse1 .cse3 .cse2) (and .cse1 .cse0 .cse3))))) is different from true [2019-01-12 08:39:00,324 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse1 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse2)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (= (fp.div roundNearestTiesToEven .cse2 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0)))))) (not (fp.gt .cse0 .cse1))))) is different from false [2019-01-12 08:39:02,380 WARN L860 $PredicateComparison]: unable to prove that (let ((.cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse4 (fp.add roundNearestTiesToEven c_ULTIMATE.start_SqrtR_~xnp1~0 c_ULTIMATE.start_SqrtR_~xnp1~0))) (let ((.cse0 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse3) .cse4)) (.cse1 (fp.mul roundNearestTiesToEven .cse3 .cse4))) (and (not (fp.lt .cse0 (fp.neg .cse1))) (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse2 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse2)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (= (fp.div roundNearestTiesToEven .cse2 ULTIMATE.start_SqrtR_~Input) c_ULTIMATE.start_SqrtR_~xnp1~0) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0)))))) (not (fp.gt .cse0 .cse1))))) is different from true [2019-01-12 08:39:05,199 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse2 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse1 .cse2)) (= (fp.div roundNearestTiesToEven .cse0 .cse3) |c_ULTIMATE.start_SqrtR_#res|) (not (fp.lt .cse1 (fp.neg .cse2))) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))))) is different from false [2019-01-12 08:39:07,882 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse3 .cse3))) (let ((.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse2 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse1 .cse2)) (= (fp.div roundNearestTiesToEven .cse0 .cse3) |c_ULTIMATE.start_SqrtR_#res|) (not (fp.lt .cse1 (fp.neg .cse2))) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))))) is different from true [2019-01-12 08:39:32,138 WARN L838 $PredicateComparison]: unable to prove that (let ((.cse7 (= (_ bv0 32) c_ULTIMATE.start___VERIFIER_assert_~cond))) (or (and (= (_ bv1 32) c_ULTIMATE.start___VERIFIER_assert_~cond) (exists ((v_prenex_3 (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse6 (fp.div roundNearestTiesToEven .cse0 v_prenex_3))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse6 .cse6))) (let ((.cse3 (fp.div roundNearestTiesToEven .cse0 .cse6)) (.cse1 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse2 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.leq v_prenex_3 .cse0)) (not (fp.gt .cse1 .cse2)) (fp.leq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven 5.0)) (fp.geq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (fp.geq .cse3 ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0))) (not (fp.lt .cse1 (fp.neg .cse2))) (fp.leq v_prenex_3 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))))))) (and .cse7 (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse8 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse9 (fp.div roundNearestTiesToEven .cse8 v_prenex_1))) (let ((.cse12 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse13 (fp.add roundNearestTiesToEven .cse9 .cse9))) (let ((.cse10 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse12) .cse13)) (.cse11 (fp.mul roundNearestTiesToEven .cse12 .cse13))) (and (fp.geq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (fp.div roundNearestTiesToEven .cse8 .cse9) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (not (fp.leq v_prenex_1 .cse8)) (not (fp.lt .cse10 (fp.neg .cse11))) (not (fp.gt .cse10 .cse11)) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))))))) (and (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse14 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse15 (fp.div roundNearestTiesToEven .cse14 ULTIMATE.start_SqrtR_~Input))) (let ((.cse18 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse19 (fp.add roundNearestTiesToEven .cse15 .cse15))) (let ((.cse16 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse18) .cse19)) (.cse17 (fp.mul roundNearestTiesToEven .cse18 .cse19))) (and (not (fp.leq (fp.div roundNearestTiesToEven .cse14 .cse15) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse14)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse16 .cse17)) (not (fp.lt .cse16 (fp.neg .cse17))) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))))) .cse7))) is different from false [2019-01-12 08:39:47,594 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((ULTIMATE.start_SqrtR_~Input (_ FloatingPoint 11 53))) (let ((.cse0 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse1 (fp.div roundNearestTiesToEven .cse0 ULTIMATE.start_SqrtR_~Input))) (let ((.cse4 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse5 (fp.add roundNearestTiesToEven .cse1 .cse1))) (let ((.cse2 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse4) .cse5)) (.cse3 (fp.mul roundNearestTiesToEven .cse4 .cse5))) (and (not (fp.leq (fp.div roundNearestTiesToEven .cse0 .cse1) ((_ to_fp 11 53) roundNearestTiesToEven 5.0))) (not (fp.leq ULTIMATE.start_SqrtR_~Input .cse0)) (fp.leq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven 20.0)) (not (fp.gt .cse2 .cse3)) (not (fp.lt .cse2 (fp.neg .cse3))) (fp.geq ULTIMATE.start_SqrtR_~Input ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))))))))) (exists ((v_prenex_1 (_ FloatingPoint 11 53))) (let ((.cse6 ((_ to_fp 11 53) roundNearestTiesToEven 1.0))) (let ((.cse7 (fp.div roundNearestTiesToEven .cse6 v_prenex_1))) (let ((.cse10 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 1000000.0))) (.cse11 (fp.add roundNearestTiesToEven .cse7 .cse7))) (let ((.cse8 (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 11 53) roundNearestTiesToEven 2.0) .cse10) .cse11)) (.cse9 (fp.mul roundNearestTiesToEven .cse10 .cse11))) (and (fp.geq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven (/ 1.0 10.0))) (not (fp.geq (fp.div roundNearestTiesToEven .cse6 .cse7) ((_ to_fp 11 53) roundNearestTiesToEven (/ 3.0 10.0)))) (not (fp.leq v_prenex_1 .cse6)) (not (fp.lt .cse8 (fp.neg .cse9))) (not (fp.gt .cse8 .cse9)) (fp.leq v_prenex_1 ((_ to_fp 11 53) roundNearestTiesToEven 20.0))))))))) is different from false [2019-01-12 08:39:48,562 WARN L194 Executor]: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000) stderr output: (error "out of memory") [2019-01-12 08:39:48,764 WARN L521 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 mathsat -unsat_core_generation=3 [2019-01-12 08:39:48,765 FATAL L265 ToolchainWalker]: An unrecoverable error occured during an interaction with an SMT solver: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parseCheckSatResult(Executor.java:225) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Scriptor.checkSat(Scriptor.java:155) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.WrapperScript.checkSat(WrapperScript.java:116) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.managedscript.ManagedScript.checkSat(ManagedScript.java:141) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.MonolithicImplicationChecker.checkImplication(MonolithicImplicationChecker.java:84) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.compare(PredicateUnifier.java:851) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier$PredicateComparison.(PredicateUnifier.java:773) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:345) at de.uni_freiburg.informatik.ultimate.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate(PredicateUnifier.java:305) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp$UnifyPostprocessor.postprocess(TraceCheckSpWp.java:575) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.applyPostprocessors(IterativePredicateTransformer.java:439) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.predicates.IterativePredicateTransformer.computeStrongestPostconditionSequence(IterativePredicateTransformer.java:200) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolantsUsingUnsatCore(TraceCheckSpWp.java:286) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.computeInterpolants(TraceCheckSpWp.java:175) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.singletracecheck.TraceCheckSpWp.(TraceCheckSpWp.java:162) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructForwardBackward(TraceCheckConstructor.java:224) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.constructTraceCheck(TraceCheckConstructor.java:188) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceCheckConstructor.get(TraceCheckConstructor.java:165) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.MultiTrackRefinementStrategy.getTraceCheck(MultiTrackRefinementStrategy.java:232) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.checkFeasibility(BaseRefinementStrategy.java:223) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.BaseRefinementStrategy.executeStrategy(BaseRefinementStrategy.java:197) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.tracehandling.TraceAbstractionRefinementEngine.(TraceAbstractionRefinementEngine.java:70) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.BasicCegarLoop.isCounterexampleFeasible(BasicCegarLoop.java:456) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterateInternal(AbstractCegarLoop.java:434) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.AbstractCegarLoop.iterate(AbstractCegarLoop.java:376) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.iterate(TraceAbstractionStarter.java:334) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.runCegarLoops(TraceAbstractionStarter.java:174) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionStarter.(TraceAbstractionStarter.java:126) at de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver.finish(TraceAbstractionObserver.java:123) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:316) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55) Caused by: de.uni_freiburg.informatik.ultimate.logic.SMTLIBException: EOF at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser$Action$.CUP$do_action(Parser.java:1427) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Parser.do_action(Parser.java:630) at com.github.jhoenicke.javacup.runtime.LRParser.parse(LRParser.java:419) at de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:205) ... 39 more [2019-01-12 08:39:48,777 INFO L168 Benchmark]: Toolchain (without parser) took 84684.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -111.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 11.5 GB. [2019-01-12 08:39:48,779 INFO L168 Benchmark]: CDTParser took 0.16 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 08:39:48,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 437.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 08:39:48,781 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.60 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:39:48,782 INFO L168 Benchmark]: Boogie Preprocessor took 60.46 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 08:39:48,783 INFO L168 Benchmark]: RCFGBuilder took 9701.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2019-01-12 08:39:48,784 INFO L168 Benchmark]: TraceAbstraction took 74420.02 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: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. [2019-01-12 08:39:48,791 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 437.85 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 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 52.60 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 60.46 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 9701.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.7 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 74420.02 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: 48.4 MB). Peak memory consumption was 48.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - ExceptionOrErrorResult: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMTLIBException: External (z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000)Received EOF on stdin. stderr output: (error "out of memory") : de.uni_freiburg.informatik.ultimate.smtsolver.external.Executor.parse(Executor.java:208) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request...