./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-to-double2_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-to-double2_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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 ............................................................................................................................................................................................................................. 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-to-double2_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 b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 ..................................................................................................................................................................................................................................................................... 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 17:39:39,091 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:39,092 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:39,105 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:39,105 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:39,106 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:39,108 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:39,110 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:39,112 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:39,113 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:39,114 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:39,114 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:39,115 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:39,116 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:39,117 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:39,118 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:39,121 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:39,125 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:39,135 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:39,137 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:39,138 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:39,139 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:39,147 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:39,150 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:39,150 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:39,152 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:39,154 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:39,157 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:39,158 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:39,159 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:39,159 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:39,164 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:39,166 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:39,166 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:39,167 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:39,169 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:39,171 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 17:39:39,202 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:39,202 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:39,203 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:39,203 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:39,204 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:39,204 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:39,204 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:39,209 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:39,209 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:39,210 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 17:39:39,210 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:39,210 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:39,210 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:39,211 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:39,212 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:39,212 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:39,212 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:39,212 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:39,212 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:39,216 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:39,216 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:39,216 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:39,216 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 17:39:39,217 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:39,217 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 17:39:39,217 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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-11-28 17:39:39,287 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:39,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:39,310 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:39,314 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:39,314 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:39,315 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:39,382 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222853001/af9a1c0392dc4c9991a1ec12bbdcd69e/FLAG9835a1406 [2018-11-28 17:39:39,840 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:39,840 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:39,849 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222853001/af9a1c0392dc4c9991a1ec12bbdcd69e/FLAG9835a1406 [2018-11-28 17:39:40,201 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/222853001/af9a1c0392dc4c9991a1ec12bbdcd69e [2018-11-28 17:39:40,206 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:40,207 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:40,209 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:40,209 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:40,214 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:40,215 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,219 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@62e54013 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40, skipping insertion in model container [2018-11-28 17:39:40,219 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,228 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:40,246 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:40,499 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:40,505 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:40,541 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:40,560 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:40,561 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40 WrapperNode [2018-11-28 17:39:40,561 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:40,562 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:40,563 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:40,563 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:40,576 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,582 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,591 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:40,592 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:40,592 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:40,592 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:40,603 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,604 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,604 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,613 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,616 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,618 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (1/1) ... [2018-11-28 17:39:40,620 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:40,620 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:40,621 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:40,621 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:40,624 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (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 17:39:40,775 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:40,776 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:40,777 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:40,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:41,082 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:41,082 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:41,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:41 BoogieIcfgContainer [2018-11-28 17:39:41,083 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:41,086 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:41,086 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:41,093 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:41,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:40" (1/3) ... [2018-11-28 17:39:41,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800e510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:41, skipping insertion in model container [2018-11-28 17:39:41,097 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:40" (2/3) ... [2018-11-28 17:39:41,098 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2800e510 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:41, skipping insertion in model container [2018-11-28 17:39:41,098 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:41" (3/3) ... [2018-11-28 17:39:41,101 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:41,113 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:41,122 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:41,142 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:41,183 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:41,184 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:41,184 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:41,184 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:41,185 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:41,185 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:41,185 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:41,185 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:41,185 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:41,205 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-28 17:39:41,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:41,212 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:41,213 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:41,216 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:41,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:41,223 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-28 17:39:41,226 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 17:39:41,227 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 17:39:41,288 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:41,288 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:41,289 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 17:39:41,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:41,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-28 17:39:41,348 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-11-28 17:39:41,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:41 BoogieIcfgContainer [2018-11-28 17:39:41,377 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:41,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:41,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:41,378 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:41,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:41" (3/4) ... [2018-11-28 17:39:41,385 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-11-28 17:39:41,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:41,386 INFO L168 Benchmark]: Toolchain (without parser) took 1179.98 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -127.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 17:39:41,390 INFO L168 Benchmark]: CDTParser took 0.18 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 17:39:41,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 352.47 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 17:39:41,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.91 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 17:39:41,393 INFO L168 Benchmark]: Boogie Preprocessor took 28.54 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 17:39:41,393 INFO L168 Benchmark]: RCFGBuilder took 462.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:41,394 INFO L168 Benchmark]: TraceAbstraction took 291.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:41,396 INFO L168 Benchmark]: Witness Printer took 7.54 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 17:39:41,402 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 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 352.47 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 28.91 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 28.54 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 462.65 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 111.1 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -152.1 MB). Peak memory consumption was 18.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 291.39 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * Witness Printer took 7.54 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - UnprovableResult [Line: 9]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryDOUBLEComparisonOperation at line 9, overapproximation of someUnaryDOUBLEoperation at line 6, overapproximation of someUnaryFLOAToperation at line 5. Possible FailurePath: [L5] float f = -0x1.0p-127f; [L6] double d = -0x1.0p-127; [L7] double fp = (double)f; VAL [f=0, fp=0] [L9] COND TRUE !(d == fp) VAL [f=0, fp=0] [L9] __VERIFIER_error() VAL [f=0, fp=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 1 error locations. UNSAFE Result, 0.2s 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=13occurred 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 17:39:43,815 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 17:39:43,817 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 17:39:43,829 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 17:39:43,830 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 17:39:43,831 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 17:39:43,832 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 17:39:43,834 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 17:39:43,836 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 17:39:43,837 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 17:39:43,838 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 17:39:43,838 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 17:39:43,839 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 17:39:43,840 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 17:39:43,841 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 17:39:43,842 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 17:39:43,843 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 17:39:43,844 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 17:39:43,847 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 17:39:43,848 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 17:39:43,850 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 17:39:43,851 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 17:39:43,854 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 17:39:43,854 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 17:39:43,854 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 17:39:43,856 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 17:39:43,857 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 17:39:43,858 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 17:39:43,859 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 17:39:43,860 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 17:39:43,860 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 17:39:43,861 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 17:39:43,861 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 17:39:43,862 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 17:39:43,863 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 17:39:43,865 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 17:39:43,866 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-11-28 17:39:43,898 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 17:39:43,899 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 17:39:43,900 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 17:39:43,900 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 17:39:43,900 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 17:39:43,901 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 17:39:43,901 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 17:39:43,901 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 17:39:43,901 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 17:39:43,901 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 17:39:43,902 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 17:39:43,904 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 17:39:43,904 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 17:39:43,904 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 17:39:43,905 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 17:39:43,906 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 17:39:43,906 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 17:39:43,906 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 17:39:43,906 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 17:39:43,906 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 17:39:43,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 17:39:43,909 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 17:39:43,910 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 17:39:43,910 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-11-28 17:39:43,911 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 17:39:43,911 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-11-28 17:39:43,911 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-11-28 17:39:43,912 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 -> b4f17a4b481a4a7bc11b766c6bcdfce67786d9c2 [2018-11-28 17:39:43,964 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 17:39:43,981 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 17:39:43,988 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 17:39:43,990 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 17:39:43,991 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 17:39:43,992 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:44,059 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf638ae82/b9b2f7f31dce48ff9b3cc429ed9e3369/FLAGe20204c20 [2018-11-28 17:39:44,551 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 17:39:44,552 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:44,559 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf638ae82/b9b2f7f31dce48ff9b3cc429ed9e3369/FLAGe20204c20 [2018-11-28 17:39:44,874 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bf638ae82/b9b2f7f31dce48ff9b3cc429ed9e3369 [2018-11-28 17:39:44,878 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 17:39:44,879 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 17:39:44,880 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:44,881 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 17:39:44,885 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 17:39:44,886 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:44" (1/1) ... [2018-11-28 17:39:44,889 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ae2ada and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:44, skipping insertion in model container [2018-11-28 17:39:44,890 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 05:39:44" (1/1) ... [2018-11-28 17:39:44,899 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 17:39:44,917 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 17:39:45,174 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:45,187 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 17:39:45,225 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 17:39:45,245 INFO L195 MainTranslator]: Completed translation [2018-11-28 17:39:45,246 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45 WrapperNode [2018-11-28 17:39:45,246 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 17:39:45,247 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:45,247 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 17:39:45,247 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 17:39:45,259 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,268 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 17:39:45,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 17:39:45,278 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 17:39:45,278 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 17:39:45,289 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,289 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,296 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,297 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,307 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,310 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,313 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (1/1) ... [2018-11-28 17:39:45,320 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 17:39:45,321 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 17:39:45,321 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 17:39:45,321 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 17:39:45,323 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (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 17:39:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 17:39:45,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 17:39:45,517 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 17:39:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 17:39:45,518 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 17:39:45,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 17:39:45,700 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 17:39:45,700 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 17:39:45,701 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:45 BoogieIcfgContainer [2018-11-28 17:39:45,701 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 17:39:45,702 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 17:39:45,702 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 17:39:45,706 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 17:39:45,706 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 05:39:44" (1/3) ... [2018-11-28 17:39:45,707 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f3c07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:45, skipping insertion in model container [2018-11-28 17:39:45,707 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 05:39:45" (2/3) ... [2018-11-28 17:39:45,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31f3c07b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 05:39:45, skipping insertion in model container [2018-11-28 17:39:45,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:45" (3/3) ... [2018-11-28 17:39:45,713 INFO L112 eAbstractionObserver]: Analyzing ICFG float-to-double2_true-unreach-call_true-termination.i [2018-11-28 17:39:45,725 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 17:39:45,736 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 17:39:45,754 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 17:39:45,787 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 17:39:45,788 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 17:39:45,788 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 17:39:45,788 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 17:39:45,788 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 17:39:45,788 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 17:39:45,788 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 17:39:45,789 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 17:39:45,789 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 17:39:45,809 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-28 17:39:45,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-11-28 17:39:45,815 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 17:39:45,816 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-11-28 17:39:45,820 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 17:39:45,826 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 17:39:45,827 INFO L82 PathProgramCache]: Analyzing trace with hash -2109216782, now seen corresponding path program 1 times [2018-11-28 17:39:45,832 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-11-28 17:39:45,833 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 17:39:45,842 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 17:39:45,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 17:39:45,887 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 17:39:45,978 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 17:39:45,978 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-11-28 17:39:45,996 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 17:39:45,996 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-28 17:39:46,000 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-28 17:39:46,012 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-28 17:39:46,013 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-28 17:39:46,016 INFO L87 Difference]: Start difference. First operand 13 states. Second operand 3 states. [2018-11-28 17:39:46,057 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 17:39:46,058 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2018-11-28 17:39:46,059 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-28 17:39:46,060 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-11-28 17:39:46,061 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 17:39:46,069 INFO L225 Difference]: With dead ends: 18 [2018-11-28 17:39:46,069 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 17:39:46,073 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 17:39:46,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 17:39:46,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 17:39:46,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 17:39:46,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 17:39:46,104 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2018-11-28 17:39:46,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 17:39:46,104 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 17:39:46,104 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-28 17:39:46,106 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 17:39:46,106 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 17:39:46,113 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 17:39:46,214 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 17:39:46,215 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:46,215 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 17:39:46,215 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 17:39:46,215 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 17:39:46,215 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 17:39:46,216 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 9) no Hoare annotation was computed. [2018-11-28 17:39:46,216 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 3 12) the Hoare annotation is: true [2018-11-28 17:39:46,216 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 3 12) no Hoare annotation was computed. [2018-11-28 17:39:46,216 INFO L448 ceAbstractionStarter]: For program point L9(line 9) no Hoare annotation was computed. [2018-11-28 17:39:46,217 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 3 12) no Hoare annotation was computed. [2018-11-28 17:39:46,217 INFO L448 ceAbstractionStarter]: For program point L9-1(line 9) no Hoare annotation was computed. [2018-11-28 17:39:46,217 INFO L448 ceAbstractionStarter]: For program point L9-3(line 9) no Hoare annotation was computed. [2018-11-28 17:39:46,231 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 05:39:46 BoogieIcfgContainer [2018-11-28 17:39:46,231 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 17:39:46,232 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 17:39:46,232 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 17:39:46,232 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 17:39:46,236 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 05:39:45" (3/4) ... [2018-11-28 17:39:46,244 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 17:39:46,262 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 17:39:46,266 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 17:39:46,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-11-28 17:39:46,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-11-28 17:39:46,277 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 17:39:46,336 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 17:39:46,336 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 17:39:46,337 INFO L168 Benchmark]: Toolchain (without parser) took 1458.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -152.5 MB). Peak memory consumption was 6.3 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:46,339 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 17:39:46,340 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.07 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 17:39:46,341 INFO L168 Benchmark]: Boogie Procedure Inliner took 30.24 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 17:39:46,341 INFO L168 Benchmark]: Boogie Preprocessor took 42.80 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 17:39:46,342 INFO L168 Benchmark]: RCFGBuilder took 380.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:46,343 INFO L168 Benchmark]: TraceAbstraction took 529.40 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:46,343 INFO L168 Benchmark]: Witness Printer took 104.36 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. [2018-11-28 17:39:46,348 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 366.07 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 30.24 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 42.80 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 380.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 158.9 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -197.3 MB). Peak memory consumption was 25.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 529.40 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: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * Witness Printer took 104.36 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: 6.9 MB). Peak memory consumption was 6.9 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 9]: 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, 13 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 9 SDtfs, 3 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=13occurred 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, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 6 ConstructedInterpolants, 0 QuantifiedInterpolants, 120 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...