./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float5_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/float5_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 e03384737e8763104139cfd338bec2bd1e3e90b2 ................................................................................................................................................................................................................................ 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/float5_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 e03384737e8763104139cfd338bec2bd1e3e90b2 ..................................................................................................................................................................................................................................................................... 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 17:40:03,184 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:03,186 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:03,199 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:03,199 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:03,200 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:03,202 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:03,204 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:03,206 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:03,208 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:03,209 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:03,209 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:03,211 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:03,212 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:03,213 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:03,214 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:03,215 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:03,218 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:03,220 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:03,222 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:03,224 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:03,226 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:03,229 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:03,230 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:03,230 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:03,231 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:03,233 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:03,234 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:03,235 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:03,236 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:03,236 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:03,237 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:03,238 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:03,238 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:03,240 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:03,240 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:03,241 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:40:03,261 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:03,261 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:03,262 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:03,262 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:03,264 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:03,264 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:03,266 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:03,266 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:03,266 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:03,266 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:03,267 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:03,269 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:03,270 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:03,270 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:03,271 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:03,271 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:03,271 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:03,271 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:03,271 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:03,271 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:03,272 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:03,272 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:03,272 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:40:03,272 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:03,272 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:40:03,272 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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2018-11-28 17:40:03,318 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:03,338 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:03,344 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:03,348 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:03,348 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:03,349 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-28 17:40:03,415 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca9e8993/2b90070b4f5343ef9d5e4e7a40e2586e/FLAGd2f025077 [2018-11-28 17:40:03,903 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:03,904 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-28 17:40:03,912 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca9e8993/2b90070b4f5343ef9d5e4e7a40e2586e/FLAGd2f025077 [2018-11-28 17:40:04,253 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ca9e8993/2b90070b4f5343ef9d5e4e7a40e2586e [2018-11-28 17:40:04,257 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:04,258 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:04,259 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:04,260 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:04,263 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:04,264 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,269 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5dd6fc27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04, skipping insertion in model container [2018-11-28 17:40:04,269 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,279 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:04,301 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:04,494 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:04,502 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:04,522 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:04,539 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:04,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04 WrapperNode [2018-11-28 17:40:04,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:04,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:04,541 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:04,541 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:04,552 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,559 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,567 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:04,568 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:04,568 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:04,568 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:04,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,592 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,594 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,595 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... [2018-11-28 17:40:04,597 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:04,598 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:04,598 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:04,598 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:04,599 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:04,771 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:04,772 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:04,772 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:04,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:04,773 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:04,958 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:04,958 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:04,959 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:04 BoogieIcfgContainer [2018-11-28 17:40:04,959 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:04,960 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:04,960 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:04,964 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:04,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:04" (1/3) ... [2018-11-28 17:40:04,965 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d26c7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:04, skipping insertion in model container [2018-11-28 17:40:04,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:04" (2/3) ... [2018-11-28 17:40:04,966 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1d26c7d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:04, skipping insertion in model container [2018-11-28 17:40:04,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:04" (3/3) ... [2018-11-28 17:40:04,969 INFO L112 eAbstractionObserver]: Analyzing ICFG float5_true-unreach-call_true-termination.i [2018-11-28 17:40:04,979 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:04,986 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:05,000 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:05,029 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:05,030 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:05,030 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:05,030 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:05,031 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:05,031 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:05,031 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:05,031 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:05,031 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:05,050 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:40:05,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:40:05,056 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:05,057 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:05,059 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:05,065 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:05,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:40:05,068 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:40:05,069 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:40:05,116 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:05,117 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:40:05,117 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:40:05,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:05,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:40:05,172 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:40:05,198 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:05 BoogieIcfgContainer [2018-11-28 17:40:05,199 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:05,199 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:05,199 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:05,200 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:05,200 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:04" (3/4) ... [2018-11-28 17:40:05,205 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:40:05,205 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:05,206 INFO L168 Benchmark]: Toolchain (without parser) took 948.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -148.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:05,208 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. [2018-11-28 17:40:05,209 INFO L168 Benchmark]: CACSL2BoogieTranslator took 280.44 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:05,211 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:05,211 INFO L168 Benchmark]: Boogie Preprocessor took 29.03 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:40:05,212 INFO L168 Benchmark]: RCFGBuilder took 360.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:05,213 INFO L168 Benchmark]: TraceAbstraction took 238.85 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:05,214 INFO L168 Benchmark]: Witness Printer took 5.86 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 17:40:05,219 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 280.44 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 27.39 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 29.03 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 360.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.8 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -173.9 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 238.85 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: 15.0 MB). Peak memory consumption was 15.0 MB. Max. memory is 11.5 GB. * Witness Printer took 5.86 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: 12]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryFLOATComparisonOperation at line 12, overapproximation of someBinaryDOUBLEComparisonOperation at line 8, overapproximation of someBinaryArithmeticFLOAToperation at line 10. Possible FailurePath: [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L6] float a=__VERIFIER_nondet_float(), b=__VERIFIER_nondet_float(); [L9] b=a [L10] a/=2 [L11] a*=2 VAL [b=0] [L12] COND TRUE !(a==b) VAL [b=0] [L12] __VERIFIER_error() VAL [b=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 17:40:07,725 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:40:07,728 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:40:07,741 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:40:07,741 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:40:07,743 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:40:07,744 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:40:07,747 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:40:07,749 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:40:07,749 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:40:07,751 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:40:07,751 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:40:07,752 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:40:07,753 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:40:07,754 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:40:07,756 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:40:07,757 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:40:07,759 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:40:07,761 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:40:07,763 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:40:07,764 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:40:07,766 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:40:07,768 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:40:07,768 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:40:07,769 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:40:07,770 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:40:07,770 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:40:07,772 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:40:07,773 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:40:07,774 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:40:07,774 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:40:07,775 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:40:07,775 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:40:07,776 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:40:07,777 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:40:07,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:40:07,778 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:40:07,796 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:40:07,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:40:07,797 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:40:07,797 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:40:07,799 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:40:07,800 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:40:07,800 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:40:07,800 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:40:07,801 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:40:07,802 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:40:07,802 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:40:07,802 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:40:07,802 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:40:07,802 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:40:07,803 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:40:07,805 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:40:07,806 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:40:07,806 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:40:07,806 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:40:07,806 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:07,806 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:40:07,807 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:40:07,808 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 -> e03384737e8763104139cfd338bec2bd1e3e90b2 [2018-11-28 17:40:07,882 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:40:07,899 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:40:07,906 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:40:07,908 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:40:07,908 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:40:07,909 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-28 17:40:07,979 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009042a1b/b64ac2d99df84cba8f0d7950bd34ad53/FLAG826b9e45c [2018-11-28 17:40:08,459 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:40:08,460 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float5_true-unreach-call_true-termination.i [2018-11-28 17:40:08,468 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009042a1b/b64ac2d99df84cba8f0d7950bd34ad53/FLAG826b9e45c [2018-11-28 17:40:08,830 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/009042a1b/b64ac2d99df84cba8f0d7950bd34ad53 [2018-11-28 17:40:08,834 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:40:08,836 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:40:08,838 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:08,838 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:40:08,843 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:40:08,844 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:08" (1/1) ... [2018-11-28 17:40:08,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6874090d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:08, skipping insertion in model container [2018-11-28 17:40:08,848 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:40:08" (1/1) ... [2018-11-28 17:40:08,857 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:40:08,874 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:40:09,052 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:09,061 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:40:09,080 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:40:09,098 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:40:09,099 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09 WrapperNode [2018-11-28 17:40:09,099 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:40:09,100 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:09,100 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:40:09,100 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:40:09,110 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,119 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,127 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:40:09,128 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:40:09,128 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:40:09,129 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:40:09,140 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,140 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,151 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,153 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,155 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... [2018-11-28 17:40:09,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:40:09,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:40:09,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:40:09,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:40:09,161 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:40:09,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:40:09,298 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:40:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:40:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:40:09,299 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:40:09,299 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:40:10,564 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:40:10,564 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:40:10,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:10 BoogieIcfgContainer [2018-11-28 17:40:10,565 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:40:10,566 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:40:10,566 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:40:10,570 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:40:10,570 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:40:08" (1/3) ... [2018-11-28 17:40:10,571 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60335410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:10, skipping insertion in model container [2018-11-28 17:40:10,571 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:40:09" (2/3) ... [2018-11-28 17:40:10,573 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@60335410 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:40:10, skipping insertion in model container [2018-11-28 17:40:10,573 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:10" (3/3) ... [2018-11-28 17:40:10,575 INFO L112 eAbstractionObserver]: Analyzing ICFG float5_true-unreach-call_true-termination.i [2018-11-28 17:40:10,586 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:40:10,594 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:40:10,613 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:40:10,645 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:40:10,646 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:40:10,646 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:40:10,646 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:40:10,647 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:40:10,647 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:40:10,647 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:40:10,647 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:40:10,647 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:40:10,667 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-11-28 17:40:10,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:40:10,674 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:40:10,675 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:40:10,678 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:40:10,684 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:40:10,685 INFO L82 PathProgramCache]: Analyzing trace with hash 1297293521, now seen corresponding path program 1 times [2018-11-28 17:40:10,690 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:40:10,691 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) [2018-11-28 17:40:10,704 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-11-28 17:40:10,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:40:10,796 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:40:26,712 WARN L180 SmtUtils]: Spent 13.97 s on a formula simplification. DAG size of input: 24 DAG size of output: 21 [2018-11-28 17:40:28,530 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 17:40:28,531 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:40:28,544 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:40:28,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:40:28,548 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:40:28,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:40:28,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:28,564 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 3 states. [2018-11-28 17:40:29,424 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:40:29,424 INFO L93 Difference]: Finished difference Result 16 states and 15 transitions. [2018-11-28 17:40:29,442 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:40:29,444 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:40:29,444 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:40:29,450 INFO L225 Difference]: With dead ends: 16 [2018-11-28 17:40:29,450 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:40:29,453 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:40:29,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:40:29,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:40:29,480 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:40:29,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:40:29,482 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-28 17:40:29,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:40:29,483 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:40:29,483 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:40:29,483 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:40:29,483 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:40:29,489 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:40:29,541 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:40:29,541 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:29,541 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:40:29,542 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:40:29,542 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:40:29,542 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:40:29,542 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 4 13) the Hoare annotation is: true [2018-11-28 17:40:29,542 INFO L448 ceAbstractionStarter]: For program point L12(line 12) no Hoare annotation was computed. [2018-11-28 17:40:29,543 INFO L448 ceAbstractionStarter]: For program point L12-1(line 12) no Hoare annotation was computed. [2018-11-28 17:40:29,543 INFO L448 ceAbstractionStarter]: For program point L12-3(lines 4 13) no Hoare annotation was computed. [2018-11-28 17:40:29,543 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 4 13) no Hoare annotation was computed. [2018-11-28 17:40:29,543 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 12) no Hoare annotation was computed. [2018-11-28 17:40:29,546 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:40:29 BoogieIcfgContainer [2018-11-28 17:40:29,546 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:40:29,547 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:40:29,547 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:40:29,547 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:40:29,548 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:40:10" (3/4) ... [2018-11-28 17:40:29,552 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:40:29,560 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:40:29,561 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:40:29,565 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:40:29,565 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:40:29,566 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:40:29,607 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:40:29,607 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:40:29,608 INFO L168 Benchmark]: Toolchain (without parser) took 20772.86 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -113.2 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:29,609 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. [2018-11-28 17:40:29,610 INFO L168 Benchmark]: CACSL2BoogieTranslator took 261.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:29,611 INFO L168 Benchmark]: Boogie Procedure Inliner took 27.83 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. [2018-11-28 17:40:29,611 INFO L168 Benchmark]: Boogie Preprocessor took 29.90 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. [2018-11-28 17:40:29,612 INFO L168 Benchmark]: RCFGBuilder took 1406.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:29,613 INFO L168 Benchmark]: TraceAbstraction took 18980.37 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:40:29,614 INFO L168 Benchmark]: Witness Printer took 60.30 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. [2018-11-28 17:40:29,618 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 261.75 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 939.3 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 27.83 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 29.90 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 1406.90 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 115.9 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -159.2 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 18980.37 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: 33.9 MB). Peak memory consumption was 33.9 MB. Max. memory is 11.5 GB. * Witness Printer took 60.30 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: - PositiveResult [Line: 12]: 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, 18.9s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 8 SDtfs, 2 SDslu, 6 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.9s 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, 17.7s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 252 SizeOfPredicates, 2 NumberOfNonLiveVariables, 15 ConjunctsInSsa, 3 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...