./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -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 ../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c -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(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash d08ec045f3070a7b4be2ee6fb5c0f639f90e227f .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 01:48:48,481 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:48:48,484 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:48:48,529 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:48:48,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:48:48,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:48:48,542 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:48:48,546 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:48:48,549 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:48:48,552 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:48:48,554 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:48:48,555 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:48:48,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:48:48,559 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:48:48,561 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:48:48,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:48:48,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:48:48,566 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:48:48,568 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:48:48,576 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:48:48,578 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:48:48,580 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:48:48,582 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:48:48,583 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:48:48,595 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:48:48,600 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:48:48,600 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:48:48,602 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:48:48,603 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:48:48,604 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:48:48,606 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:48:48,607 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:48:48,610 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:48:48,611 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:48:48,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:48:48,614 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:48:48,615 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:48:48,616 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:48:48,616 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:48:48,617 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:48:48,618 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:48:48,619 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:48:48,664 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:48:48,664 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:48:48,666 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:48:48,667 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:48:48,667 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:48:48,667 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:48:48,667 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:48:48,668 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:48:48,668 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:48:48,668 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:48:48,669 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:48:48,669 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:48:48,670 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:48:48,670 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:48:48,670 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:48:48,670 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:48:48,671 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:48:48,671 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:48:48,671 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:48:48,671 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:48:48,672 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:48:48,672 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:48:48,672 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:48:48,673 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:48:48,673 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:48:48,673 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:48:48,673 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:48:48,674 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:48:48,674 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:48:48,674 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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(reach_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 -> d08ec045f3070a7b4be2ee6fb5c0f639f90e227f [2020-10-20 01:48:48,882 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:48:48,894 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:48:48,899 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:48:48,900 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:48:48,902 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:48:48,903 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-10-20 01:48:48,960 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c351367c6/f5b974095e0e46f79d5c1ba6c726bbf8/FLAGa203fd0ad [2020-10-20 01:48:49,474 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:48:49,475 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/sum_non_eq-2.c [2020-10-20 01:48:49,481 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c351367c6/f5b974095e0e46f79d5c1ba6c726bbf8/FLAGa203fd0ad [2020-10-20 01:48:49,887 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c351367c6/f5b974095e0e46f79d5c1ba6c726bbf8 [2020-10-20 01:48:49,891 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:48:49,898 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:48:49,899 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:48:49,900 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:48:49,903 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:48:49,904 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:48:49" (1/1) ... [2020-10-20 01:48:49,907 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ae856b6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:49, skipping insertion in model container [2020-10-20 01:48:49,908 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:48:49" (1/1) ... [2020-10-20 01:48:49,915 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:48:49,933 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:48:50,176 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:48:50,193 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:48:50,213 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:48:50,240 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:48:50,241 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50 WrapperNode [2020-10-20 01:48:50,242 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:48:50,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:48:50,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:48:50,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:48:50,253 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,264 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,287 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:48:50,287 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:48:50,288 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:48:50,288 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:48:50,297 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,297 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,299 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,300 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,306 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,307 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,308 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (1/1) ... [2020-10-20 01:48:50,310 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:48:50,311 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:48:50,311 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:48:50,311 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:48:50,312 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (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 [2020-10-20 01:48:50,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:48:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:48:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2020-10-20 01:48:50,372 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2020-10-20 01:48:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-20 01:48:50,372 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-20 01:48:50,581 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:48:50,582 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-20 01:48:50,584 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:48:50 BoogieIcfgContainer [2020-10-20 01:48:50,584 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:48:50,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:48:50,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:48:50,596 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:48:50,596 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:48:49" (1/3) ... [2020-10-20 01:48:50,597 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ed3da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:48:50, skipping insertion in model container [2020-10-20 01:48:50,597 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:48:50" (2/3) ... [2020-10-20 01:48:50,598 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@67ed3da4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:48:50, skipping insertion in model container [2020-10-20 01:48:50,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:48:50" (3/3) ... [2020-10-20 01:48:50,600 INFO L111 eAbstractionObserver]: Analyzing ICFG sum_non_eq-2.c [2020-10-20 01:48:50,612 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:48:50,622 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-20 01:48:50,643 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-20 01:48:50,710 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:48:50,714 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:48:50,715 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:48:50,715 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:48:50,715 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:48:50,715 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:48:50,716 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:48:50,716 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:48:50,742 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2020-10-20 01:48:50,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-10-20 01:48:50,749 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:48:50,750 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:48:50,750 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:48:50,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:48:50,756 INFO L82 PathProgramCache]: Analyzing trace with hash 666808458, now seen corresponding path program 1 times [2020-10-20 01:48:50,764 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:48:50,764 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401779535] [2020-10-20 01:48:50,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:48:50,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:48:51,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-20 01:48:51,194 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401779535] [2020-10-20 01:48:51,195 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-20 01:48:51,196 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-20 01:48:51,197 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [218208859] [2020-10-20 01:48:51,201 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-20 01:48:51,202 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:48:51,216 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-20 01:48:51,218 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-10-20 01:48:51,220 INFO L87 Difference]: Start difference. First operand 17 states. Second operand 6 states. [2020-10-20 01:48:51,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:48:51,330 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2020-10-20 01:48:51,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-20 01:48:51,338 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 10 [2020-10-20 01:48:51,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:48:51,348 INFO L225 Difference]: With dead ends: 29 [2020-10-20 01:48:51,349 INFO L226 Difference]: Without dead ends: 15 [2020-10-20 01:48:51,352 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-10-20 01:48:51,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2020-10-20 01:48:51,387 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2020-10-20 01:48:51,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2020-10-20 01:48:51,390 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 16 transitions. [2020-10-20 01:48:51,391 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 16 transitions. Word has length 10 [2020-10-20 01:48:51,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:48:51,392 INFO L481 AbstractCegarLoop]: Abstraction has 15 states and 16 transitions. [2020-10-20 01:48:51,392 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-20 01:48:51,392 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 16 transitions. [2020-10-20 01:48:51,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-10-20 01:48:51,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-20 01:48:51,394 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-20 01:48:51,394 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-20 01:48:51,394 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-20 01:48:51,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-20 01:48:51,395 INFO L82 PathProgramCache]: Analyzing trace with hash 1352629460, now seen corresponding path program 1 times [2020-10-20 01:48:51,395 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-20 01:48:51,395 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [395914980] [2020-10-20 01:48:51,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-20 01:48:51,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:48:51,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-20 01:48:51,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,671 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 01:48:51,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [395914980] [2020-10-20 01:48:51,672 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [336277684] [2020-10-20 01:48:51,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-10-20 01:48:51,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-20 01:48:51,758 INFO L263 TraceCheckSpWp]: Trace formula consists of 72 conjuncts, 29 conjunts are in the unsatisfiable core [2020-10-20 01:48:51,765 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-10-20 01:48:52,066 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-10-20 01:48:52,067 INFO L219 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2020-10-20 01:48:52,068 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 9] total 13 [2020-10-20 01:48:52,069 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [17987037] [2020-10-20 01:48:52,070 INFO L461 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-20 01:48:52,070 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-20 01:48:52,071 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-20 01:48:52,073 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2020-10-20 01:48:52,074 INFO L87 Difference]: Start difference. First operand 15 states and 16 transitions. Second operand 13 states. [2020-10-20 01:48:52,384 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-20 01:48:52,384 INFO L93 Difference]: Finished difference Result 20 states and 22 transitions. [2020-10-20 01:48:52,385 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-20 01:48:52,385 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 16 [2020-10-20 01:48:52,385 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-20 01:48:52,386 INFO L225 Difference]: With dead ends: 20 [2020-10-20 01:48:52,386 INFO L226 Difference]: Without dead ends: 0 [2020-10-20 01:48:52,387 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=58, Invalid=248, Unknown=0, NotChecked=0, Total=306 [2020-10-20 01:48:52,387 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-20 01:48:52,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-20 01:48:52,388 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-20 01:48:52,388 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-20 01:48:52,388 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-10-20 01:48:52,388 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-20 01:48:52,389 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-20 01:48:52,389 INFO L482 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-20 01:48:52,389 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-20 01:48:52,389 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:48:52,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-10-20 01:48:52,601 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-20 01:48:52,635 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:48:52,635 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:48:52,635 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:48:52,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:48:52,636 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 4) no Hoare annotation was computed. [2020-10-20 01:48:52,636 INFO L274 CegarLoopResult]: For program point L19(line 19) no Hoare annotation was computed. [2020-10-20 01:48:52,636 INFO L274 CegarLoopResult]: For program point L18(lines 18 20) no Hoare annotation was computed. [2020-10-20 01:48:52,637 INFO L277 CegarLoopResult]: At program point L17(line 17) the Hoare annotation is: true [2020-10-20 01:48:52,637 INFO L274 CegarLoopResult]: For program point L17-1(line 17) no Hoare annotation was computed. [2020-10-20 01:48:52,637 INFO L274 CegarLoopResult]: For program point L14(lines 14 21) no Hoare annotation was computed. [2020-10-20 01:48:52,637 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-20 01:48:52,637 INFO L274 CegarLoopResult]: For program point sumEXIT(lines 6 12) no Hoare annotation was computed. [2020-10-20 01:48:52,637 INFO L270 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= sum_~m |sum_#in~m|) (not (= (mod sum_~n 4294967296) 0))) [2020-10-20 01:48:52,637 INFO L274 CegarLoopResult]: For program point L10-1(line 10) no Hoare annotation was computed. [2020-10-20 01:48:52,638 INFO L274 CegarLoopResult]: For program point L7(lines 7 11) no Hoare annotation was computed. [2020-10-20 01:48:52,638 INFO L274 CegarLoopResult]: For program point sumFINAL(lines 6 12) no Hoare annotation was computed. [2020-10-20 01:48:52,638 INFO L277 CegarLoopResult]: At program point sumENTRY(lines 6 12) the Hoare annotation is: true [2020-10-20 01:48:52,643 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:48:52 BoogieIcfgContainer [2020-10-20 01:48:52,643 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:48:52,644 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:48:52,644 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:48:52,644 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:48:52,645 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:48:50" (3/4) ... [2020-10-20 01:48:52,648 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:48:52,655 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2020-10-20 01:48:52,659 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:48:52,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2020-10-20 01:48:52,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:48:52,660 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-20 01:48:52,711 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:48:52,712 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:48:52,714 INFO L168 Benchmark]: Toolchain (without parser) took 2820.54 ms. Allocated memory was 43.0 MB in the beginning and 51.4 MB in the end (delta: 8.4 MB). Free memory was 23.9 MB in the beginning and 35.2 MB in the end (delta: -11.3 MB). Peak memory consumption was 19.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,715 INFO L168 Benchmark]: CDTParser took 0.68 ms. Allocated memory is still 32.5 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,716 INFO L168 Benchmark]: CACSL2BoogieTranslator took 342.84 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 23.0 MB in the beginning and 25.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,717 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.77 ms. Allocated memory is still 43.5 MB. Free memory was 25.5 MB in the beginning and 23.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,717 INFO L168 Benchmark]: Boogie Preprocessor took 23.00 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,718 INFO L168 Benchmark]: RCFGBuilder took 273.26 ms. Allocated memory is still 43.5 MB. Free memory was 22.7 MB in the beginning and 10.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,719 INFO L168 Benchmark]: TraceAbstraction took 2058.33 ms. Allocated memory was 43.5 MB in the beginning and 49.8 MB in the end (delta: 6.3 MB). Free memory was 10.2 MB in the beginning and 14.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,720 INFO L168 Benchmark]: Witness Printer took 68.10 ms. Allocated memory was 49.8 MB in the beginning and 51.4 MB in the end (delta: 1.6 MB). Free memory was 13.6 MB in the beginning and 35.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:48:52,724 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.68 ms. Allocated memory is still 32.5 MB. Free memory was 11.8 MB in the beginning and 11.7 MB in the end (delta: 48.5 kB). Peak memory consumption was 48.5 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 342.84 ms. Allocated memory was 43.0 MB in the beginning and 43.5 MB in the end (delta: 524.3 kB). Free memory was 23.0 MB in the beginning and 25.5 MB in the end (delta: -2.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 43.77 ms. Allocated memory is still 43.5 MB. Free memory was 25.5 MB in the beginning and 23.9 MB in the end (delta: 1.6 MB). Peak memory consumption was 1.6 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 23.00 ms. Allocated memory is still 43.5 MB. Free memory was 23.9 MB in the beginning and 22.7 MB in the end (delta: 1.2 MB). Peak memory consumption was 1.2 MB. Max. memory is 14.3 GB. * RCFGBuilder took 273.26 ms. Allocated memory is still 43.5 MB. Free memory was 22.7 MB in the beginning and 10.7 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.0 MB. Max. memory is 14.3 GB. * TraceAbstraction took 2058.33 ms. Allocated memory was 43.5 MB in the beginning and 49.8 MB in the end (delta: 6.3 MB). Free memory was 10.2 MB in the beginning and 14.0 MB in the end (delta: -3.8 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Witness Printer took 68.10 ms. Allocated memory was 49.8 MB in the beginning and 51.4 MB in the end (delta: 1.6 MB). Free memory was 13.6 MB in the beginning and 35.2 MB in the end (delta: -21.7 MB). Peak memory consumption was 2.5 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 4]: 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 2 procedures, 17 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 2, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 SDtfs, 14 SDslu, 61 SDs, 0 SdLazy, 105 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=17occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 15 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 39 ConstructedInterpolants, 0 QuantifiedInterpolants, 5190 SizeOfPredicates, 7 NumberOfNonLiveVariables, 72 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 4/8 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...