./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/square_7_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/floats-cdfpl/square_7_true-unreach-call_true-termination.i -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 606eec17d7532a4390087f1369eab3dc14272ffb ...................................................................................................................................................................................................................... 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/floats-cdfpl/square_7_true-unreach-call_true-termination.i -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 606eec17d7532a4390087f1369eab3dc14272ffb ............................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:38:57,258 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:38:57,264 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:38:57,286 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:38:57,287 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:38:57,288 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:38:57,289 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:38:57,291 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:38:57,295 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:38:57,296 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:38:57,297 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:38:57,298 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:38:57,299 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:38:57,300 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:38:57,301 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:38:57,302 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:38:57,303 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:38:57,305 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:38:57,307 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:38:57,309 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:38:57,310 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:38:57,312 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:38:57,315 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:38:57,315 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:38:57,316 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:38:57,317 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:38:57,318 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:38:57,319 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:38:57,320 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:38:57,321 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:38:57,322 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:38:57,323 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:38:57,323 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:38:57,323 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:38:57,325 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:38:57,326 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:38:57,326 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:38:57,342 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:38:57,342 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:38:57,343 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:38:57,344 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:38:57,344 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:38:57,345 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:38:57,345 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:38:57,345 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:38:57,345 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:38:57,345 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:38:57,345 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:38:57,346 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:38:57,347 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:38:57,347 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:38:57,347 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:38:57,347 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:38:57,347 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:38:57,348 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:38:57,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:38:57,348 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:38:57,348 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:38:57,348 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:38:57,348 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:38:57,350 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:38:57,350 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:38:57,350 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:38:57,350 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:38:57,351 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:38:57,351 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 -> 606eec17d7532a4390087f1369eab3dc14272ffb [2018-12-31 02:38:57,409 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:38:57,424 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:38:57,429 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:38:57,430 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:38:57,431 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:38:57,432 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-12-31 02:38:57,498 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e4f76d2/887cd80538d5448e9fc2fd8082aaac85/FLAGa13f7f647 [2018-12-31 02:38:57,953 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:38:57,954 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-12-31 02:38:57,960 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e4f76d2/887cd80538d5448e9fc2fd8082aaac85/FLAGa13f7f647 [2018-12-31 02:38:58,358 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b0e4f76d2/887cd80538d5448e9fc2fd8082aaac85 [2018-12-31 02:38:58,363 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:38:58,364 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:38:58,366 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:38:58,366 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:38:58,370 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:38:58,372 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,376 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1509bd75 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58, skipping insertion in model container [2018-12-31 02:38:58,377 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,388 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:38:58,408 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:38:58,585 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:38:58,589 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:38:58,609 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:38:58,626 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:38:58,627 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58 WrapperNode [2018-12-31 02:38:58,627 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:38:58,628 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:38:58,628 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:38:58,628 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:38:58,639 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,646 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,668 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:38:58,668 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:38:58,669 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:38:58,669 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:38:58,680 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,681 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,681 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,685 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,688 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... [2018-12-31 02:38:58,690 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:38:58,696 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:38:58,696 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:38:58,697 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:38:58,698 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:38:58,872 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:38:58,872 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:38:59,021 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:38:59,021 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:38:59,022 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:38:59 BoogieIcfgContainer [2018-12-31 02:38:59,022 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:38:59,023 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:38:59,023 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:38:59,027 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:38:59,028 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:38:58" (1/3) ... [2018-12-31 02:38:59,028 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5289fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:38:59, skipping insertion in model container [2018-12-31 02:38:59,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:38:58" (2/3) ... [2018-12-31 02:38:59,029 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1b5289fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:38:59, skipping insertion in model container [2018-12-31 02:38:59,029 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:38:59" (3/3) ... [2018-12-31 02:38:59,032 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7_true-unreach-call_true-termination.i [2018-12-31 02:38:59,041 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:38:59,048 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:38:59,063 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:38:59,098 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:38:59,098 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:38:59,099 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:38:59,099 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:38:59,099 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:38:59,099 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:38:59,099 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:38:59,099 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:38:59,099 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:38:59,115 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:38:59,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:38:59,122 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:38:59,123 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:38:59,126 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:38:59,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:38:59,132 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:38:59,134 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:38:59,135 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:38:59,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:38:59,187 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:38:59,187 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:38:59,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:38:59,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:38:59,246 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:38:59,262 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:38:59 BoogieIcfgContainer [2018-12-31 02:38:59,262 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:38:59,263 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:38:59,263 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:38:59,263 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:38:59,264 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:38:59" (3/4) ... [2018-12-31 02:38:59,267 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:38:59,268 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:38:59,268 INFO L168 Benchmark]: Toolchain (without parser) took 905.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 946.0 MB in the beginning and 1.1 GB in the end (delta: -153.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:38:59,271 INFO L168 Benchmark]: CDTParser took 0.91 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. [2018-12-31 02:38:59,271 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.57 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:38:59,272 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.09 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:38:59,273 INFO L168 Benchmark]: Boogie Preprocessor took 21.85 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:38:59,274 INFO L168 Benchmark]: RCFGBuilder took 325.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 02:38:59,275 INFO L168 Benchmark]: TraceAbstraction took 239.26 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-12-31 02:38:59,276 INFO L168 Benchmark]: Witness Printer took 5.07 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:38:59,281 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.91 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 261.57 ms. Allocated memory is still 1.0 GB. Free memory was 946.0 MB in the beginning and 935.2 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 40.09 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.85 ms. Allocated memory is still 1.0 GB. Free memory is still 935.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 325.99 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 239.26 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: 13.9 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * Witness Printer took 5.07 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 someBinaryFLOATComparisonOperation at line 14, overapproximation of someBinaryArithmeticFLOAToperation at line 12. Possible FailurePath: [L6] float IN = __VERIFIER_nondet_float(); [L9] float x = IN; [L11-L12] float result = 1.0f + 0.5f*x - 0.125f*x*x + 0.0625f*x*x*x - 0.0390625f*x*x*x*x; [L14] COND TRUE !(result >= 0.0f && result < 1.4f) [L15] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 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=8occurred 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, 3 NumberOfCodeBlocks, 3 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 0.1.24-2e94e6a [2018-12-31 02:39:01,687 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:39:01,692 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:39:01,708 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:39:01,709 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:39:01,710 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:39:01,711 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:39:01,713 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:39:01,715 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:39:01,716 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:39:01,717 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:39:01,717 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:39:01,718 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:39:01,719 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:39:01,720 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:39:01,721 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:39:01,722 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:39:01,724 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:39:01,726 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:39:01,728 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:39:01,729 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:39:01,731 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:39:01,733 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:39:01,734 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:39:01,734 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:39:01,735 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:39:01,736 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:39:01,737 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:39:01,738 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:39:01,739 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:39:01,739 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:39:01,740 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:39:01,740 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:39:01,740 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:39:01,742 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:39:01,742 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:39:01,743 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:39:01,762 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:39:01,763 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:39:01,766 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:39:01,768 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:39:01,768 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:39:01,768 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:39:01,768 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:39:01,769 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:39:01,769 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:39:01,770 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:39:01,770 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:39:01,770 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:39:01,770 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:39:01,771 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:39:01,771 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:39:01,771 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:39:01,771 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:39:01,772 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:39:01,772 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:39:01,772 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:39:01,772 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:39:01,772 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:39:01,772 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:01,773 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:39:01,773 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:39:01,773 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:39:01,773 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:39:01,773 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:39:01,774 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:39:01,778 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:39:01,778 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 -> 606eec17d7532a4390087f1369eab3dc14272ffb [2018-12-31 02:39:01,838 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:39:01,855 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:39:01,861 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:39:01,862 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:39:01,863 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:39:01,863 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-12-31 02:39:01,938 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2366d49/d1b2c91a4bed41f190bfa336272545ea/FLAG06e8a7721 [2018-12-31 02:39:02,415 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:39:02,416 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_7_true-unreach-call_true-termination.i [2018-12-31 02:39:02,422 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2366d49/d1b2c91a4bed41f190bfa336272545ea/FLAG06e8a7721 [2018-12-31 02:39:02,793 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3d2366d49/d1b2c91a4bed41f190bfa336272545ea [2018-12-31 02:39:02,797 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:39:02,798 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:39:02,800 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:02,800 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:39:02,807 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:39:02,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:02" (1/1) ... [2018-12-31 02:39:02,811 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@20d06fba and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:02, skipping insertion in model container [2018-12-31 02:39:02,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:02" (1/1) ... [2018-12-31 02:39:02,820 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:39:02,839 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:39:03,015 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:03,025 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:39:03,048 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:03,068 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:39:03,069 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03 WrapperNode [2018-12-31 02:39:03,069 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:03,071 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:03,071 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:39:03,071 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:39:03,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,121 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:03,122 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:39:03,122 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:39:03,122 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:39:03,135 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,135 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,139 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,139 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,149 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,156 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... [2018-12-31 02:39:03,165 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:39:03,166 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:39:03,166 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:39:03,166 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:39:03,168 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:03,385 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:39:03,386 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:39:05,683 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:39:05,683 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:39:05,684 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:05 BoogieIcfgContainer [2018-12-31 02:39:05,684 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:39:05,688 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:39:05,688 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:39:05,692 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:39:05,692 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:39:02" (1/3) ... [2018-12-31 02:39:05,693 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6985b39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:05, skipping insertion in model container [2018-12-31 02:39:05,693 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:03" (2/3) ... [2018-12-31 02:39:05,694 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6985b39b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:05, skipping insertion in model container [2018-12-31 02:39:05,694 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:05" (3/3) ... [2018-12-31 02:39:05,697 INFO L112 eAbstractionObserver]: Analyzing ICFG square_7_true-unreach-call_true-termination.i [2018-12-31 02:39:05,708 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:39:05,716 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:39:05,731 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:39:05,764 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:39:05,765 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:39:05,766 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:39:05,766 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:39:05,766 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:39:05,766 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:39:05,767 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:39:05,767 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:39:05,767 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:39:05,783 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:39:05,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:39:05,790 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:39:05,792 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:39:05,794 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:39:05,801 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:39:05,802 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:39:05,807 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:39:05,808 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:39:05,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:51:29,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:51:30,324 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:51:32,462 WARN L838 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) c_ULTIMATE.start_main_~result~0)))) is different from false [2018-12-31 02:51:34,564 WARN L860 $PredicateComparison]: unable to prove that (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse0) (= (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) c_ULTIMATE.start_main_~result~0)))) is different from true [2018-12-31 02:51:47,178 WARN L838 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.lt v_prenex_2 .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_2) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_2) v_prenex_2) v_prenex_2) v_prenex_2)) (_ +zero 8 24))) (fp.geq v_prenex_2 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse1) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 7.0 5.0)))))))) is different from false [2018-12-31 02:51:49,285 WARN L860 $PredicateComparison]: unable to prove that (or (exists ((v_prenex_2 (_ FloatingPoint 8 24))) (let ((.cse0 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.lt v_prenex_2 .cse0) (not (fp.geq (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse0 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) v_prenex_2) v_prenex_2) v_prenex_2)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) v_prenex_2) v_prenex_2) v_prenex_2) v_prenex_2)) (_ +zero 8 24))) (fp.geq v_prenex_2 (_ +zero 8 24))))) (exists ((ULTIMATE.start_main_~IN~0 (_ FloatingPoint 8 24))) (let ((.cse1 ((_ to_fp 8 24) roundNearestTiesToEven 1.0))) (and (fp.geq ULTIMATE.start_main_~IN~0 (_ +zero 8 24)) (fp.lt ULTIMATE.start_main_~IN~0 .cse1) (not (fp.lt (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven (fp.sub roundNearestTiesToEven (fp.add roundNearestTiesToEven .cse1 (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 2.0)) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 8.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 1.0 16.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven (fp.mul roundNearestTiesToEven ((_ to_fp 8 24) roundNearestTiesToEven (/ 5.0 128.0)) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0) ULTIMATE.start_main_~IN~0)) ((_ to_fp 8 24) roundNearestTiesToEven (/ 7.0 5.0)))))))) is different from true [2018-12-31 02:51:49,291 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 02:51:49,291 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:51:49,326 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:51:49,326 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:51:49,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 02:51:49,345 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 02:51:49,346 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-12-31 02:51:49,349 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2018-12-31 02:51:49,364 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:51:49,365 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-31 02:51:49,365 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 02:51:49,367 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-31 02:51:49,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:51:49,374 INFO L225 Difference]: With dead ends: 12 [2018-12-31 02:51:49,375 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:51:49,378 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s TimeCoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-12-31 02:51:49,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:51:49,400 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:51:49,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:51:49,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:51:49,403 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:51:49,404 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:51:49,404 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:51:49,404 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 02:51:49,404 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:51:49,404 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:51:49,408 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:51:49,464 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:51:49,464 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:51:49,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:51:49,465 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-12-31 02:51:49,465 INFO L451 ceAbstractionStarter]: At program point L17(lines 4 18) the Hoare annotation is: true [2018-12-31 02:51:49,465 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-12-31 02:51:49,466 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-12-31 02:51:49,467 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-12-31 02:51:49,474 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:51:49 BoogieIcfgContainer [2018-12-31 02:51:49,475 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:51:49,475 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:51:49,475 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:51:49,476 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:51:49,476 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:05" (3/4) ... [2018-12-31 02:51:49,483 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:51:49,499 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:51:49,499 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:51:49,552 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:51:49,552 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:51:49,553 INFO L168 Benchmark]: Toolchain (without parser) took 766755.47 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -133.7 MB). Peak memory consumption was 20.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:51:49,557 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:51:49,558 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.27 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:51:49,560 INFO L168 Benchmark]: Boogie Procedure Inliner took 50.60 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. [2018-12-31 02:51:49,561 INFO L168 Benchmark]: Boogie Preprocessor took 43.92 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:51:49,562 INFO L168 Benchmark]: RCFGBuilder took 2517.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2018-12-31 02:51:49,563 INFO L168 Benchmark]: TraceAbstraction took 763786.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:51:49,564 INFO L168 Benchmark]: Witness Printer took 76.85 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:51:49,569 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 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 270.27 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 50.60 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 43.92 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 2517.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 154.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -199.8 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 763786.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 43.1 MB). Peak memory consumption was 43.1 MB. Max. memory is 11.5 GB. * Witness Printer took 76.85 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: - PositiveResult [Line: 15]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. SAFE Result, 763.7s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 4 SDtfs, 0 SDslu, 0 SDs, 0 SdLazy, 0 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 2 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 8.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 2 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 744.1s SatisfiabilityAnalysisTime, 19.3s InterpolantComputationTime, 3 NumberOfCodeBlocks, 3 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 2 ConstructedInterpolants, 2 QuantifiedInterpolants, 400 SizeOfPredicates, 3 NumberOfNonLiveVariables, 8 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...