./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_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 af383046837f49b57572febe7198ecca5fffa750 ......................................................................................................................................................................................................................... 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-zero-sum1_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 af383046837f49b57572febe7198ecca5fffa750 ................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:40:58,871 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:40:58,872 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:40:58,888 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:40:58,888 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:40:58,890 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:40:58,892 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:40:58,896 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:40:58,898 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:40:58,899 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:40:58,908 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:40:58,909 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:40:58,912 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:40:58,913 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:40:58,914 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:40:58,915 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:40:58,916 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:40:58,917 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:40:58,919 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:40:58,921 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:40:58,922 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:40:58,923 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:40:58,925 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:40:58,925 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:40:58,926 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:40:58,927 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:40:58,927 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:40:58,928 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:40:58,929 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:40:58,930 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:40:58,930 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:40:58,931 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:40:58,931 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:40:58,931 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:40:58,932 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:40:58,933 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:40:58,933 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 02:40:58,948 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:40:58,948 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:40:58,950 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:40:58,950 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:40:58,950 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:40:58,950 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:40:58,950 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:40:58,951 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:40:58,952 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:40:58,952 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:40:58,952 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:40:58,952 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:40:58,952 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:40:58,953 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:40:58,953 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:40:58,953 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:40:58,953 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:40:58,953 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:40:58,953 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:40:58,954 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:40:58,954 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 02:40:58,954 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:40:58,954 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 02:40:58,954 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 -> af383046837f49b57572febe7198ecca5fffa750 [2018-12-31 02:40:58,997 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:40:59,017 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:40:59,024 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:40:59,026 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:40:59,026 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:40:59,028 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:40:59,097 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e0fae9/c0ff7b63c2bd4a2d8900015b676d0111/FLAGec241cb84 [2018-12-31 02:40:59,640 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:40:59,641 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:40:59,649 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e0fae9/c0ff7b63c2bd4a2d8900015b676d0111/FLAGec241cb84 [2018-12-31 02:40:59,985 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f64e0fae9/c0ff7b63c2bd4a2d8900015b676d0111 [2018-12-31 02:40:59,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:40:59,991 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:40:59,992 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:40:59,992 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:40:59,996 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:40:59,997 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:59" (1/1) ... [2018-12-31 02:41:00,000 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4df46ce0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:40:59, skipping insertion in model container [2018-12-31 02:41:00,001 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:40:59" (1/1) ... [2018-12-31 02:41:00,009 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:41:00,032 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:41:00,253 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:00,257 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:41:00,286 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:00,313 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:41:00,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00 WrapperNode [2018-12-31 02:41:00,313 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:00,314 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:00,315 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:41:00,315 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:41:00,326 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,340 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:00,365 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:41:00,365 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:41:00,365 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:41:00,375 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,375 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,376 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,377 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,383 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,385 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,386 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... [2018-12-31 02:41:00,388 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:41:00,389 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:41:00,389 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:41:00,389 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:41:00,390 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:41:00,522 INFO L130 BoogieDeclarations]: Found specification of procedure write~real [2018-12-31 02:41:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:41:00,523 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:41:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2018-12-31 02:41:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 02:41:00,523 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 02:41:00,831 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:41:00,832 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:41:00,832 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:00 BoogieIcfgContainer [2018-12-31 02:41:00,833 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:41:00,834 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:41:00,834 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:41:00,837 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:41:00,837 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:40:59" (1/3) ... [2018-12-31 02:41:00,838 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e847397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:00, skipping insertion in model container [2018-12-31 02:41:00,838 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:00" (2/3) ... [2018-12-31 02:41:00,839 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e847397 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:00, skipping insertion in model container [2018-12-31 02:41:00,839 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:00" (3/3) ... [2018-12-31 02:41:00,841 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:41:00,852 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:41:00,862 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:41:00,881 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:41:00,917 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:41:00,918 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:41:00,918 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:41:00,918 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:41:00,919 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:41:00,919 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:41:00,919 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:41:00,920 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:41:00,920 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:41:00,938 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:41:00,944 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-31 02:41:00,945 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:41:00,946 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-31 02:41:00,948 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:41:00,955 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:41:00,955 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2018-12-31 02:41:00,958 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 02:41:00,959 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 02:41:01,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:41:01,013 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:41:01,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 02:41:01,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:41:01,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-31 02:41:01,104 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-31 02:41:01,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:41:01 BoogieIcfgContainer [2018-12-31 02:41:01,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:41:01,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:41:01,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:41:01,132 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:41:01,133 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:00" (3/4) ... [2018-12-31 02:41:01,138 INFO L147 WitnessPrinter]: No result that supports witness generation found [2018-12-31 02:41:01,138 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:41:01,139 INFO L168 Benchmark]: Toolchain (without parser) took 1148.86 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:01,141 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:01,142 INFO L168 Benchmark]: CACSL2BoogieTranslator took 321.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 MB in the end (delta: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:01,143 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.97 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:01,143 INFO L168 Benchmark]: Boogie Preprocessor took 23.25 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:01,147 INFO L168 Benchmark]: RCFGBuilder took 443.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:01,149 INFO L168 Benchmark]: TraceAbstraction took 297.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:01,149 INFO L168 Benchmark]: Witness Printer took 6.05 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:01,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 321.61 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 940.6 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 49.97 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 23.25 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.2 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 443.83 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.1 MB). Free memory was 935.2 MB in the beginning and 1.1 GB in the end (delta: -171.7 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 297.94 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 13.4 MB). Peak memory consumption was 13.4 MB. Max. memory is 11.5 GB. * Witness Printer took 6.05 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: 103]: Unable to prove that call of __VERIFIER_error() unreachable Unable to prove that call of __VERIFIER_error() unreachable Reason: overapproximation of someBinaryArithmeticFLOAToperation at line 100, overapproximation of someUnaryDOUBLEoperation at line 111. Possible FailurePath: [L100] float sum = a + b; [L101] union mix m; [L102] m.f = sum [L103] EXPR m.i [L103] COND TRUE !(m.i != 0x80000000) [L103] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 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=10occurred 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, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces Received shutdown request... ### Bit-precise run ### This is Ultimate 0.1.24-2e94e6a [2018-12-31 02:41:03,616 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 02:41:03,618 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 02:41:03,631 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 02:41:03,631 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 02:41:03,632 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 02:41:03,634 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 02:41:03,636 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 02:41:03,638 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 02:41:03,639 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 02:41:03,639 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 02:41:03,640 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 02:41:03,641 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 02:41:03,642 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 02:41:03,643 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 02:41:03,644 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 02:41:03,645 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 02:41:03,647 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 02:41:03,649 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 02:41:03,651 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 02:41:03,652 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 02:41:03,653 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 02:41:03,656 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 02:41:03,656 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 02:41:03,656 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 02:41:03,657 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 02:41:03,659 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 02:41:03,660 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 02:41:03,660 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 02:41:03,662 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 02:41:03,662 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 02:41:03,663 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 02:41:03,663 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 02:41:03,663 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 02:41:03,665 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 02:41:03,665 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 02:41:03,666 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Bitvector.epf [2018-12-31 02:41:03,683 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 02:41:03,683 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 02:41:03,685 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 02:41:03,685 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 02:41:03,685 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 02:41:03,686 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 02:41:03,686 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 02:41:03,686 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 02:41:03,686 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 02:41:03,687 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 02:41:03,687 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 02:41:03,687 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 02:41:03,687 INFO L133 SettingsManager]: * Use bitvectors instead of ints=true [2018-12-31 02:41:03,688 INFO L133 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2018-12-31 02:41:03,688 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 02:41:03,688 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 02:41:03,688 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 02:41:03,688 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 02:41:03,689 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 02:41:03,689 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 02:41:03,689 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 02:41:03,689 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 02:41:03,690 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:41:03,690 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 02:41:03,690 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 02:41:03,690 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 02:41:03,691 INFO L133 SettingsManager]: * Trace refinement strategy=WOLF [2018-12-31 02:41:03,691 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 02:41:03,691 INFO L133 SettingsManager]: * Command for external solver=cvc4 --incremental --rewrite-divk --print-success --lang smt [2018-12-31 02:41:03,691 INFO L133 SettingsManager]: * Logic for external solver=AUFBV [2018-12-31 02:41:03,692 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 -> af383046837f49b57572febe7198ecca5fffa750 [2018-12-31 02:41:03,740 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 02:41:03,761 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 02:41:03,769 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 02:41:03,771 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 02:41:03,772 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 02:41:03,773 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:41:03,845 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c8da994/bd35d5be051943efb2e079fae6fa3948/FLAG20f67b7a6 [2018-12-31 02:41:04,330 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 02:41:04,331 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/floats-cbmc-regression/float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:41:04,338 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c8da994/bd35d5be051943efb2e079fae6fa3948/FLAG20f67b7a6 [2018-12-31 02:41:04,675 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62c8da994/bd35d5be051943efb2e079fae6fa3948 [2018-12-31 02:41:04,679 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 02:41:04,680 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 02:41:04,682 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:04,682 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 02:41:04,686 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 02:41:04,687 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:04" (1/1) ... [2018-12-31 02:41:04,690 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d216431 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:04, skipping insertion in model container [2018-12-31 02:41:04,690 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 02:41:04" (1/1) ... [2018-12-31 02:41:04,699 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 02:41:04,723 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 02:41:04,946 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:04,965 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 02:41:05,006 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 02:41:05,047 INFO L195 MainTranslator]: Completed translation [2018-12-31 02:41:05,048 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05 WrapperNode [2018-12-31 02:41:05,048 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 02:41:05,049 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:05,050 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 02:41:05,050 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 02:41:05,061 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,080 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,106 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 02:41:05,107 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 02:41:05,108 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 02:41:05,109 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 02:41:05,121 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,121 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,129 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,130 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,141 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,144 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,146 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... [2018-12-31 02:41:05,150 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 02:41:05,150 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 02:41:05,150 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 02:41:05,151 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 02:41:05,151 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 02:41:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2018-12-31 02:41:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 02:41:05,291 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 02:41:05,291 INFO L130 BoogieDeclarations]: Found specification of procedure write~intFLOATTYPE4 [2018-12-31 02:41:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2018-12-31 02:41:05,292 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2018-12-31 02:41:05,487 WARN L317 ript$VariableManager]: TermVariabe |q#valueAsBitvector| not constructed by VariableManager. Cannot ensure absence of name clashes. [2018-12-31 02:41:05,520 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 02:41:05,521 INFO L280 CfgBuilder]: Removed 6 assue(true) statements. [2018-12-31 02:41:05,521 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:05 BoogieIcfgContainer [2018-12-31 02:41:05,521 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 02:41:05,522 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 02:41:05,522 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 02:41:05,526 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 02:41:05,526 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 02:41:04" (1/3) ... [2018-12-31 02:41:05,527 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a732e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:05, skipping insertion in model container [2018-12-31 02:41:05,527 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 02:41:05" (2/3) ... [2018-12-31 02:41:05,528 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@31a732e3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 02:41:05, skipping insertion in model container [2018-12-31 02:41:05,528 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:05" (3/3) ... [2018-12-31 02:41:05,530 INFO L112 eAbstractionObserver]: Analyzing ICFG float-zero-sum1_true-unreach-call_true-termination.i [2018-12-31 02:41:05,540 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 02:41:05,550 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 02:41:05,569 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 02:41:05,608 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 02:41:05,609 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 02:41:05,609 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 02:41:05,609 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 02:41:05,609 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 02:41:05,610 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 02:41:05,610 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 02:41:05,611 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 02:41:05,611 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 02:41:05,627 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2018-12-31 02:41:05,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2018-12-31 02:41:05,636 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 02:41:05,637 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2018-12-31 02:41:05,639 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 02:41:05,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 02:41:05,646 INFO L82 PathProgramCache]: Analyzing trace with hash 925604, now seen corresponding path program 1 times [2018-12-31 02:41:05,650 INFO L223 ckRefinementStrategy]: Switched to mode MATHSAT_FPBP [2018-12-31 02:41:05,651 INFO L69 tionRefinementEngine]: Using refinement strategy WolfRefinementStrategy No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat Starting monitored process 2 with mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with mathsat -unsat_core_generation=3 [2018-12-31 02:41:05,661 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 02:41:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 02:41:05,785 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 02:41:05,881 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 02:41:05,882 INFO L312 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2018-12-31 02:41:05,896 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 02:41:05,896 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 02:41:05,901 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-31 02:41:05,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-31 02:41:05,916 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:41:05,918 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2018-12-31 02:41:05,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 02:41:05,963 INFO L93 Difference]: Finished difference Result 15 states and 14 transitions. [2018-12-31 02:41:05,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-31 02:41:05,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2018-12-31 02:41:05,966 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 02:41:05,974 INFO L225 Difference]: With dead ends: 15 [2018-12-31 02:41:05,974 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 02:41:05,978 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-31 02:41:05,997 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 02:41:06,004 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 02:41:06,005 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 02:41:06,006 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 02:41:06,007 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 4 [2018-12-31 02:41:06,007 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 02:41:06,007 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 02:41:06,008 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-31 02:41:06,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 02:41:06,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 02:41:06,012 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 02:41:06,058 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 02:41:06,058 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2018-12-31 02:41:06,058 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 02:41:06,059 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 02:41:06,059 INFO L451 ceAbstractionStarter]: At program point L112(lines 108 113) the Hoare annotation is: true [2018-12-31 02:41:06,059 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 103) no Hoare annotation was computed. [2018-12-31 02:41:06,059 INFO L451 ceAbstractionStarter]: At program point L105(lines 99 106) the Hoare annotation is: true [2018-12-31 02:41:06,060 INFO L448 ceAbstractionStarter]: For program point L103(line 103) no Hoare annotation was computed. [2018-12-31 02:41:06,060 INFO L448 ceAbstractionStarter]: For program point L103-1(line 103) no Hoare annotation was computed. [2018-12-31 02:41:06,060 INFO L448 ceAbstractionStarter]: For program point L103-3(line 103) no Hoare annotation was computed. [2018-12-31 02:41:06,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 02:41:06 BoogieIcfgContainer [2018-12-31 02:41:06,067 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 02:41:06,067 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 02:41:06,067 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 02:41:06,068 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 02:41:06,068 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 02:41:05" (3/4) ... [2018-12-31 02:41:06,072 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 02:41:06,085 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-31 02:41:06,085 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 02:41:06,086 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-31 02:41:06,147 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 02:41:06,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 02:41:06,148 INFO L168 Benchmark]: Toolchain (without parser) took 1469.28 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 950.0 MB in the beginning and 1.1 GB in the end (delta: -129.3 MB). Peak memory consumption was 7.1 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:06,152 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. [2018-12-31 02:41:06,154 INFO L168 Benchmark]: CACSL2BoogieTranslator took 366.72 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:06,156 INFO L168 Benchmark]: Boogie Procedure Inliner took 57.16 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:06,157 INFO L168 Benchmark]: Boogie Preprocessor took 43.17 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:06,158 INFO L168 Benchmark]: RCFGBuilder took 371.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:06,160 INFO L168 Benchmark]: TraceAbstraction took 544.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. [2018-12-31 02:41:06,165 INFO L168 Benchmark]: Witness Printer took 80.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 02:41:06,174 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 366.72 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 939.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 57.16 ms. Allocated memory is still 1.0 GB. Free memory was 939.3 MB in the beginning and 933.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 43.17 ms. Allocated memory is still 1.0 GB. Free memory is still 933.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 371.04 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 933.9 MB in the beginning and 1.1 GB in the end (delta: -172.1 MB). Peak memory consumption was 13.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 544.63 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 26.7 MB). Peak memory consumption was 26.7 MB. Max. memory is 11.5 GB. * Witness Printer took 80.34 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 103]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 108]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 99]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 6 SDtfs, 0 SDslu, 5 SDs, 0 SdLazy, 2 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 4 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 69 SizeOfPredicates, 8 NumberOfNonLiveVariables, 21 ConjunctsInSsa, 9 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...