./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 ............................................................................................................................................................................................................................... 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-cbmc-regression/float-no-simp1_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 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 .................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:09,221 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:09,223 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:09,236 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:09,237 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:09,238 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:09,240 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:09,242 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:09,244 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:09,245 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:09,246 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:09,247 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:09,248 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:09,249 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:09,251 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:09,252 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:09,253 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:09,258 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:09,266 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:09,268 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:09,275 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:09,278 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:09,286 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:09,287 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:09,287 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:09,291 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:09,292 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:09,293 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:09,296 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:09,300 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:09,300 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:09,301 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:09,303 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:09,304 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:09,305 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:09,306 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:09,307 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:09,340 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:09,340 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:09,341 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:09,342 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:09,343 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:09,343 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:09,343 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:09,344 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:09,344 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:09,344 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:09,344 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:09,344 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:09,346 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:09,347 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:09,347 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:09,347 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:09,348 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:09,348 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:09,348 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:09,348 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:09,348 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:09,349 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:09,349 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:09,349 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:09,349 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:09,349 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:09,349 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:09,352 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:09,352 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:09,353 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:09,353 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-28 17:39:09,408 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:09,422 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:09,426 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:09,428 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:09,429 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:09,430 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:09,496 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39636ce4d/5a6edb2ae0034c11983d061fad908b0c/FLAG701b885d3 [2018-11-28 17:39:09,947 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:09,948 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:09,954 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39636ce4d/5a6edb2ae0034c11983d061fad908b0c/FLAG701b885d3 [2018-11-28 17:39:10,313 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39636ce4d/5a6edb2ae0034c11983d061fad908b0c [2018-11-28 17:39:10,317 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:10,318 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:10,320 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:10,320 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:10,324 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:10,325 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,328 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@a21f86e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10, skipping insertion in model container [2018-11-28 17:39:10,328 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,337 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:10,354 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:10,585 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:10,593 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:10,612 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:10,630 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:10,631 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10 WrapperNode [2018-11-28 17:39:10,631 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:10,633 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:10,633 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:10,633 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:10,644 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,652 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,661 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:10,662 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:10,662 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:10,662 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:10,674 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,674 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,675 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,676 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,688 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,691 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,693 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... [2018-11-28 17:39:10,694 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:10,695 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:10,695 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:10,695 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:10,696 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:10,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:10,839 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:10,840 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:10,840 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:11,007 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:11,007 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:11,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:11 BoogieIcfgContainer [2018-11-28 17:39:11,008 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:11,009 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:11,009 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:11,014 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:11,014 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:10" (1/3) ... [2018-11-28 17:39:11,015 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30010ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:11, skipping insertion in model container [2018-11-28 17:39:11,015 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:10" (2/3) ... [2018-11-28 17:39:11,016 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@30010ea7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:11, skipping insertion in model container [2018-11-28 17:39:11,016 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:11" (3/3) ... [2018-11-28 17:39:11,019 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:11,030 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:11,038 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:11,057 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:11,091 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:11,093 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:11,093 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:11,094 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:11,094 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:11,094 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:11,094 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:11,094 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:11,094 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:11,115 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:39:11,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:11,122 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:11,123 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:11,126 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:11,132 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:11,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:39:11,135 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:39:11,136 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:39:11,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:11,184 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:11,184 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:11,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:11,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:11,247 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:39:11,273 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:11 BoogieIcfgContainer [2018-11-28 17:39:11,273 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:11,274 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:11,274 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:11,274 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:11,275 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:11" (3/4) ... [2018-11-28 17:39:11,279 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:39:11,279 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:11,280 INFO L168 Benchmark]: Toolchain (without parser) took 962.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -140.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:11,283 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:11,284 INFO L168 Benchmark]: CACSL2BoogieTranslator took 311.95 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:11,285 INFO L168 Benchmark]: Boogie Procedure Inliner took 29.21 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. [2018-11-28 17:39:11,286 INFO L168 Benchmark]: Boogie Preprocessor took 32.45 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. [2018-11-28 17:39:11,287 INFO L168 Benchmark]: RCFGBuilder took 312.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:11,289 INFO L168 Benchmark]: TraceAbstraction took 264.78 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:11,290 INFO L168 Benchmark]: Witness Printer took 5.38 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:11,300 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 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 311.95 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 29.21 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 32.45 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. * RCFGBuilder took 312.94 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 123.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 13.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 264.78 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: 13.6 MB). Peak memory consumption was 13.6 MB. Max. memory is 11.5 GB. * Witness Printer took 5.38 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: 10]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of to_int at line 7, overapproximation of to_real at line 8. Possible FailurePath: [L4] unsigned int i, j; [L5] double d; [L7] i=100.0 [L8] d=i [L9] j=d [L10] COND TRUE !(j==100) VAL [j=0] [L10] __VERIFIER_error() VAL [j=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 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=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-91b1670 [2018-11-28 17:39:13,639 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:13,641 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:13,653 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:13,653 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:13,654 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:13,656 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:13,657 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:13,659 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:13,660 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:13,661 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:13,661 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:13,662 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:13,663 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:13,664 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:13,665 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:13,666 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:13,668 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:13,670 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:13,672 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:13,673 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:13,674 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:13,677 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:13,677 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:13,678 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:13,679 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:13,680 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:13,680 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:13,681 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:13,683 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:13,683 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:13,684 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:13,684 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:13,684 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:13,685 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:13,686 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:13,687 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:39:13,703 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:13,704 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:13,705 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:13,705 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:13,706 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:13,706 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:13,706 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:13,707 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:13,707 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:13,707 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:13,707 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:13,708 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:13,708 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:13,708 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:13,708 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:39:13,709 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:39:13,709 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:13,709 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:13,709 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:13,710 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:13,710 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:13,710 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:13,714 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:13,714 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:13,714 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:13,714 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:39:13,715 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:39:13,716 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 -> 3ae83f4ba6a5445cacb58a433d1ffd94ad9f6563 [2018-11-28 17:39:13,781 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:13,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:13,810 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:13,811 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:13,812 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:13,813 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:13,876 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e4ea595e/b63ad19dafa34c3398cb042b78b922d8/FLAG8980472bf [2018-11-28 17:39:14,344 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:14,345 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:14,351 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e4ea595e/b63ad19dafa34c3398cb042b78b922d8/FLAG8980472bf [2018-11-28 17:39:14,698 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1e4ea595e/b63ad19dafa34c3398cb042b78b922d8 [2018-11-28 17:39:14,703 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:14,705 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:14,706 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:14,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:14,711 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:14,712 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:14" (1/1) ... [2018-11-28 17:39:14,716 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3b7d0223 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:14, skipping insertion in model container [2018-11-28 17:39:14,716 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:14" (1/1) ... [2018-11-28 17:39:14,726 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:14,745 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:14,976 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:14,987 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:15,005 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:15,027 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:15,027 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15 WrapperNode [2018-11-28 17:39:15,027 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:15,028 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:15,029 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:15,029 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:15,041 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,051 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,060 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:15,061 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:15,061 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:15,061 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:15,073 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,073 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,075 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,076 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,088 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,090 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,092 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... [2018-11-28 17:39:15,099 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:15,100 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:15,100 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:15,100 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:15,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:15,236 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:15,237 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:15,237 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:15,238 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:15,509 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:15,509 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:15,510 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:15 BoogieIcfgContainer [2018-11-28 17:39:15,510 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:15,514 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:15,517 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:15,521 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:15,521 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:14" (1/3) ... [2018-11-28 17:39:15,522 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a742efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:15, skipping insertion in model container [2018-11-28 17:39:15,522 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:15" (2/3) ... [2018-11-28 17:39:15,525 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1a742efb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:15, skipping insertion in model container [2018-11-28 17:39:15,525 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:15" (3/3) ... [2018-11-28 17:39:15,528 INFO L112 eAbstractionObserver]: Analyzing ICFG float-no-simp1_true-unreach-call_true-termination.i [2018-11-28 17:39:15,541 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:15,551 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:15,572 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:15,615 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:15,615 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:15,616 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:15,616 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:15,616 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:15,616 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:15,617 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:15,617 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:15,617 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:15,643 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:39:15,650 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:15,650 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:15,651 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:15,654 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:15,664 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:15,664 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:39:15,670 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:15,671 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:39:15,687 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:15,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:15,767 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:15,899 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 17:39:15,900 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:15,930 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:15,930 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:15,939 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:15,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:15,978 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:15,986 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-28 17:39:16,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:16,035 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-28 17:39:16,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:16,039 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:39:16,040 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:16,058 INFO L225 Difference]: With dead ends: 16 [2018-11-28 17:39:16,058 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:39:16,066 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:16,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:39:16,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:39:16,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:39:16,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:39:16,105 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-28 17:39:16,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:16,105 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:39:16,106 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:16,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:39:16,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:39:16,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:39:16,171 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:39:16,172 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:16,172 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:16,172 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:39:16,172 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:39:16,172 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:39:16,173 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 2 11) the Hoare annotation is: true [2018-11-28 17:39:16,173 INFO L448 ceAbstractionStarter]: For program point L10(line 10) no Hoare annotation was computed. [2018-11-28 17:39:16,173 INFO L448 ceAbstractionStarter]: For program point L10-1(line 10) no Hoare annotation was computed. [2018-11-28 17:39:16,173 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 2 11) no Hoare annotation was computed. [2018-11-28 17:39:16,173 INFO L448 ceAbstractionStarter]: For program point L10-3(lines 2 11) no Hoare annotation was computed. [2018-11-28 17:39:16,175 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 10) no Hoare annotation was computed. [2018-11-28 17:39:16,178 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:16 BoogieIcfgContainer [2018-11-28 17:39:16,178 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:16,179 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:16,179 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:16,179 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:16,180 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:15" (3/4) ... [2018-11-28 17:39:16,184 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:39:16,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:39:16,192 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:39:16,197 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:39:16,197 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 17:39:16,197 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:39:16,244 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:39:16,244 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:16,245 INFO L168 Benchmark]: Toolchain (without parser) took 1541.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -128.7 MB). Peak memory consumption was 7.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:16,247 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:16,248 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.74 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:16,249 INFO L168 Benchmark]: Boogie Procedure Inliner took 32.11 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. [2018-11-28 17:39:16,250 INFO L168 Benchmark]: Boogie Preprocessor took 38.73 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. [2018-11-28 17:39:16,251 INFO L168 Benchmark]: RCFGBuilder took 410.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:16,252 INFO L168 Benchmark]: TraceAbstraction took 664.09 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:16,252 INFO L168 Benchmark]: Witness Printer took 65.47 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:16,262 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.74 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 32.11 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 38.73 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. * RCFGBuilder took 410.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -172.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 664.09 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: 26.6 MB). Peak memory consumption was 26.6 MB. Max. memory is 11.5 GB. * Witness Printer took 65.47 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: 10]: 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 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 12 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 96 SizeOfPredicates, 3 NumberOfNonLiveVariables, 15 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...