./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cdfpl/square_8_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_8_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 847ec304644081d839ca7e80209d45b391ec9937 ...................................................................................................................................................................................................................... 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_8_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 847ec304644081d839ca7e80209d45b391ec9937 ............................................................................................................................................................................................................................................................. 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 02:39:28,332 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:39:28,334 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:39:28,347 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:39:28,348 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:39:28,350 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:39:28,354 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:39:28,364 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:39:28,366 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:39:28,366 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:39:28,368 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:39:28,368 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:39:28,369 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:39:28,371 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:39:28,372 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:39:28,373 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:39:28,373 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:39:28,376 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:39:28,378 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:39:28,380 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:39:28,381 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:39:28,383 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:39:28,385 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:39:28,386 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:39:28,386 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:39:28,387 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:39:28,388 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:39:28,389 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:39:28,390 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:39:28,392 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:39:28,392 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:39:28,393 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:39:28,393 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:39:28,393 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:39:28,395 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:39:28,395 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:39:28,396 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:39:28,412 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:39:28,412 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:39:28,413 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:39:28,414 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:39:28,414 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:39:28,414 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:39:28,415 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:39:28,415 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:39:28,415 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:39:28,415 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:39:28,416 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:39:28,418 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:39:28,418 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:39:28,418 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:39:28,418 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:39:28,418 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:39:28,419 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:28,419 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:39:28,419 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:39:28,419 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:39:28,419 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:39:28,419 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:39:28,421 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:39:28,421 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 -> 847ec304644081d839ca7e80209d45b391ec9937 [2018-12-31 02:39:28,463 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:39:28,477 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:39:28,482 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:39:28,483 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:39:28,484 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:39:28,484 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:28,546 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2149c3c2c/a6d1c7563c2d4cf6b8efb1491ea2942d/FLAGf61d83238 [2018-12-31 02:39:29,042 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:39:29,044 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:29,051 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2149c3c2c/a6d1c7563c2d4cf6b8efb1491ea2942d/FLAGf61d83238 [2018-12-31 02:39:29,363 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2149c3c2c/a6d1c7563c2d4cf6b8efb1491ea2942d [2018-12-31 02:39:29,368 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:39:29,370 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:39:29,371 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:29,371 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:39:29,376 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:39:29,377 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,381 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@798e22cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29, skipping insertion in model container [2018-12-31 02:39:29,381 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,390 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:39:29,411 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:39:29,619 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:29,626 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:39:29,650 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:29,667 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:39:29,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29 WrapperNode [2018-12-31 02:39:29,668 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:29,669 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:29,669 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:39:29,669 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:39:29,680 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,687 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,710 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:29,712 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:39:29,712 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:39:29,712 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:39:29,724 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,724 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,725 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,725 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,731 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,734 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,735 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... [2018-12-31 02:39:29,737 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:39:29,744 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:39:29,744 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:39:29,744 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:39:29,745 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:29,875 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:39:29,876 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:39:30,044 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:39:30,044 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:39:30,045 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:30 BoogieIcfgContainer [2018-12-31 02:39:30,045 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:39:30,047 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:39:30,047 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:39:30,050 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:39:30,051 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:39:29" (1/3) ... [2018-12-31 02:39:30,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68913be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:30, skipping insertion in model container [2018-12-31 02:39:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:29" (2/3) ... [2018-12-31 02:39:30,052 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@68913be7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:30, skipping insertion in model container [2018-12-31 02:39:30,052 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:30" (3/3) ... [2018-12-31 02:39:30,054 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:30,064 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:39:30,072 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:39:30,090 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:39:30,122 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:39:30,123 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:39:30,123 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:39:30,123 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:39:30,123 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:39:30,124 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:39:30,124 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:39:30,124 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:39:30,124 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:39:30,141 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:39:30,150 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:39:30,151 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:39:30,152 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:39:30,156 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:39:30,162 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:39:30,163 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:39:30,165 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:39:30,166 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:39:30,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:39:30,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:39:30,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:39:30,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:39:30,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:39:30,282 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:39:30,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:39:30 BoogieIcfgContainer [2018-12-31 02:39:30,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:39:30,303 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:39:30,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:39:30,303 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:39:30,304 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:30" (3/4) ... [2018-12-31 02:39:30,308 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:39:30,308 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:39:30,309 INFO L168 Benchmark]: Toolchain (without parser) took 940.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:30,312 INFO L168 Benchmark]: CDTParser took 0.61 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 02:39:30,313 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.93 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. [2018-12-31 02:39:30,314 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.54 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:30,315 INFO L168 Benchmark]: Boogie Preprocessor took 31.53 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:30,315 INFO L168 Benchmark]: RCFGBuilder took 301.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-31 02:39:30,317 INFO L168 Benchmark]: TraceAbstraction took 255.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:39:30,318 INFO L168 Benchmark]: Witness Printer took 5.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:39:30,323 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.61 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 296.93 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 42.54 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.53 ms. Allocated memory is still 1.0 GB. Free memory is still 939.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 301.42 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 120.6 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.9 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 255.85 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 5.76 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 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 < 1.5f) [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 02:39:32,762 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:39:32,764 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:39:32,777 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:39:32,778 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:39:32,779 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:39:32,780 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:39:32,782 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:39:32,784 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:39:32,785 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:39:32,786 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:39:32,787 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:39:32,788 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:39:32,789 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:39:32,790 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:39:32,791 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:39:32,792 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:39:32,794 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:39:32,797 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:39:32,799 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:39:32,800 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:39:32,801 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:39:32,804 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:39:32,805 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:39:32,805 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:39:32,806 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:39:32,807 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:39:32,808 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:39:32,809 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:39:32,811 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:39:32,811 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:39:32,812 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:39:32,812 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:39:32,813 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:39:32,814 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:39:32,815 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:39:32,816 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:39:32,832 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:39:32,833 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:39:32,835 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:39:32,836 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:39:32,837 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:39:32,837 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:39:32,837 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:39:32,837 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:39:32,838 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:39:32,838 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:39:32,838 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:39:32,838 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:39:32,839 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:39:32,840 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:39:32,840 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:39:32,840 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:39:32,840 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:39:32,840 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:32,841 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:39:32,843 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:39:32,843 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:39:32,843 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:39:32,843 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:39:32,843 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:39:32,844 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:39:32,844 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 -> 847ec304644081d839ca7e80209d45b391ec9937 [2018-12-31 02:39:32,908 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:39:32,926 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:39:32,931 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:39:32,933 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:39:32,934 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:39:32,934 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:33,007 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fbfc639/ada1571699774757ac495446c170be5f/FLAG36bb4e16d [2018-12-31 02:39:33,443 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:39:33,443 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cdfpl/square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:33,449 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fbfc639/ada1571699774757ac495446c170be5f/FLAG36bb4e16d [2018-12-31 02:39:33,804 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e8fbfc639/ada1571699774757ac495446c170be5f [2018-12-31 02:39:33,809 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:39:33,810 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:39:33,812 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:33,812 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:39:33,816 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:39:33,817 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:33" (1/1) ... [2018-12-31 02:39:33,821 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 02:39:33, skipping insertion in model container [2018-12-31 02:39:33,821 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:39:33" (1/1) ... [2018-12-31 02:39:33,830 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:39:33,850 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:39:34,088 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:34,101 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:39:34,128 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:39:34,149 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:39:34,150 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34 WrapperNode [2018-12-31 02:39:34,150 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:39:34,151 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:34,151 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:39:34,151 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:39:34,162 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,170 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,198 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:39:34,198 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:39:34,198 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:39:34,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:39:34,210 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,211 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,212 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,215 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,226 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,230 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,231 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... [2018-12-31 02:39:34,239 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:39:34,240 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:39:34,240 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:39:34,240 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:39:34,242 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:39:34,384 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:39:34,384 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:39:36,665 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:39:36,665 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 02:39:36,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:36 BoogieIcfgContainer [2018-12-31 02:39:36,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:39:36,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:39:36,668 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:39:36,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:39:36,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:39:33" (1/3) ... [2018-12-31 02:39:36,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465c275d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:36, skipping insertion in model container [2018-12-31 02:39:36,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:39:34" (2/3) ... [2018-12-31 02:39:36,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@465c275d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:39:36, skipping insertion in model container [2018-12-31 02:39:36,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:36" (3/3) ... [2018-12-31 02:39:36,675 INFO L112 eAbstractionObserver]: Analyzing ICFG square_8_true-unreach-call_true-termination.i [2018-12-31 02:39:36,686 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:39:36,692 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:39:36,707 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:39:36,742 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:39:36,743 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:39:36,744 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:39:36,744 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:39:36,745 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:39:36,745 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:39:36,745 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:39:36,746 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:39:36,746 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:39:36,767 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2018-12-31 02:39:36,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2018-12-31 02:39:36,775 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:39:36,776 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1] [2018-12-31 02:39:36,779 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:39:36,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:39:36,786 INFO L82 PathProgramCache]: Analyzing trace with hash 30881, now seen corresponding path program 1 times [2018-12-31 02:39:36,792 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:39:36,793 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 02:39:36,803 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:42:26,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:42:26,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:42:29,002 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 02:42:31,084 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 02:42:43,699 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 (/ 3.0 2.0)))))))) is different from false [2018-12-31 02:42:45,811 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 (/ 3.0 2.0)))))))) is different from true [2018-12-31 02:42:45,816 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 02:42:45,817 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:42:45,842 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:42:45,843 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 02:42:45,847 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 02:42:45,859 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 02:42:45,860 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=1, Unknown=4, NotChecked=2, Total=12 [2018-12-31 02:42:45,862 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2018-12-31 02:42:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:42:45,877 INFO L93 Difference]: Finished difference Result 12 states and 11 transitions. [2018-12-31 02:42:45,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 02:42:45,880 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 3 [2018-12-31 02:42:45,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:42:45,894 INFO L225 Difference]: With dead ends: 12 [2018-12-31 02:42:45,895 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:42:45,900 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 02:42:45,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:42:45,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:42:45,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:42:45,930 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:42:45,931 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2018-12-31 02:42:45,931 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:42:45,931 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:42:45,932 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 02:42:45,932 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:42:45,932 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:42:45,937 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:42:45,982 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 15) no Hoare annotation was computed. [2018-12-31 02:42:45,982 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:42:45,983 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:42:45,983 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:42:45,983 INFO L451 ceAbstractionStarter]: At program point L17(lines 4 18) the Hoare annotation is: true [2018-12-31 02:42:45,984 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2018-12-31 02:42:45,984 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 15) no Hoare annotation was computed. [2018-12-31 02:42:45,984 INFO L448 ceAbstractionStarter]: For program point L14-2(lines 14 15) no Hoare annotation was computed. [2018-12-31 02:42:45,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:42:45 BoogieIcfgContainer [2018-12-31 02:42:45,991 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:42:45,991 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:42:45,991 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:42:45,993 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:42:45,995 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:39:36" (3/4) ... [2018-12-31 02:42:45,999 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:42:46,014 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:42:46,015 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 02:42:46,055 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:42:46,055 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:42:46,056 INFO L168 Benchmark]: Toolchain (without parser) took 192246.96 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 5.5 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:46,058 INFO L168 Benchmark]: CDTParser took 0.17 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 02:42:46,059 INFO L168 Benchmark]: CACSL2BoogieTranslator took 338.33 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 02:42:46,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 47.09 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 02:42:46,060 INFO L168 Benchmark]: Boogie Preprocessor took 40.87 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 02:42:46,061 INFO L168 Benchmark]: RCFGBuilder took 2426.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:46,064 INFO L168 Benchmark]: TraceAbstraction took 189323.66 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:42:46,065 INFO L168 Benchmark]: Witness Printer took 63.88 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 02:42:46,075 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 338.33 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 47.09 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 40.87 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 2426.78 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.5 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -176.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 189323.66 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: 28.7 MB). Peak memory consumption was 28.7 MB. Max. memory is 11.5 GB. * Witness Printer took 63.88 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, 189.2s 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, 169.9s SatisfiabilityAnalysisTime, 19.0s 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...