./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version aa418289 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer --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 301c54c8b861008a1cf318e5b7f3396bc86db7c8 ....................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-aa41828 [2018-11-23 03:20:27,606 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-23 03:20:27,607 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-23 03:20:27,615 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-23 03:20:27,616 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-23 03:20:27,616 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-23 03:20:27,617 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-23 03:20:27,618 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-23 03:20:27,619 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-23 03:20:27,620 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-23 03:20:27,621 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-23 03:20:27,621 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-23 03:20:27,622 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-23 03:20:27,622 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-23 03:20:27,623 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-23 03:20:27,624 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-23 03:20:27,625 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-23 03:20:27,626 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-23 03:20:27,628 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-23 03:20:27,629 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-23 03:20:27,630 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-23 03:20:27,630 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-23 03:20:27,632 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-23 03:20:27,633 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-23 03:20:27,633 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-23 03:20:27,633 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-23 03:20:27,635 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-23 03:20:27,635 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-23 03:20:27,636 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-23 03:20:27,636 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-23 03:20:27,637 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-23 03:20:27,637 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-23 03:20:27,637 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-23 03:20:27,637 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-23 03:20:27,639 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-23 03:20:27,639 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-23 03:20:27,640 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-23 03:20:27,648 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-23 03:20:27,648 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-23 03:20:27,649 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-23 03:20:27,649 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-23 03:20:27,650 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-23 03:20:27,650 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-23 03:20:27,650 INFO L133 SettingsManager]: * Use SBE=true [2018-11-23 03:20:27,650 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-23 03:20:27,650 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-23 03:20:27,650 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-23 03:20:27,650 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-23 03:20:27,651 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-23 03:20:27,652 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-23 03:20:27,652 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-23 03:20:27,652 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-23 03:20:27,652 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-23 03:20:27,652 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:20:27,652 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-23 03:20:27,652 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-23 03:20:27,653 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-23 03:20:27,653 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-23 03:20:27,653 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-23 03:20:27,653 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-23 03:20:27,653 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 -> /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer 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 -> 301c54c8b861008a1cf318e5b7f3396bc86db7c8 [2018-11-23 03:20:27,676 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-23 03:20:27,683 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-23 03:20:27,685 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-23 03:20:27,686 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-23 03:20:27,686 INFO L276 PluginConnector]: CDTParser initialized [2018-11-23 03:20:27,686 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/../../sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-23 03:20:27,721 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/data/1c834807c/efbdc01ee5ee4a889e99950ec81b0c7c/FLAG0c52e2eff [2018-11-23 03:20:28,106 INFO L307 CDTParser]: Found 1 translation units. [2018-11-23 03:20:28,107 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/sv-benchmarks/c/recursive-simple/sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-23 03:20:28,111 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/data/1c834807c/efbdc01ee5ee4a889e99950ec81b0c7c/FLAG0c52e2eff [2018-11-23 03:20:28,119 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/data/1c834807c/efbdc01ee5ee4a889e99950ec81b0c7c [2018-11-23 03:20:28,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-23 03:20:28,122 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-23 03:20:28,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:28,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-23 03:20:28,126 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-23 03:20:28,126 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,128 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4044db79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28, skipping insertion in model container [2018-11-23 03:20:28,129 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,135 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-23 03:20:28,147 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-23 03:20:28,242 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:28,244 INFO L191 MainTranslator]: Completed pre-run [2018-11-23 03:20:28,253 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-23 03:20:28,261 INFO L195 MainTranslator]: Completed translation [2018-11-23 03:20:28,261 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28 WrapperNode [2018-11-23 03:20:28,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-23 03:20:28,262 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:28,262 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-23 03:20:28,262 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-23 03:20:28,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,271 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-23 03:20:28,277 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-23 03:20:28,277 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-23 03:20:28,277 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-23 03:20:28,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,289 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,291 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... [2018-11-23 03:20:28,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-23 03:20:28,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-23 03:20:28,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-23 03:20:28,293 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-23 03:20:28,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-23 03:20:28,371 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-23 03:20:28,371 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-23 03:20:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-23 03:20:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-23 03:20:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure sum [2018-11-23 03:20:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure sum [2018-11-23 03:20:28,372 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-23 03:20:28,372 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-23 03:20:28,490 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-23 03:20:28,490 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-23 03:20:28,490 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:28 BoogieIcfgContainer [2018-11-23 03:20:28,491 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-23 03:20:28,492 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-23 03:20:28,492 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-23 03:20:28,495 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-23 03:20:28,495 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.11 03:20:28" (1/3) ... [2018-11-23 03:20:28,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afec2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:28, skipping insertion in model container [2018-11-23 03:20:28,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.11 03:20:28" (2/3) ... [2018-11-23 03:20:28,496 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6afec2dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.11 03:20:28, skipping insertion in model container [2018-11-23 03:20:28,496 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:28" (3/3) ... [2018-11-23 03:20:28,499 INFO L112 eAbstractionObserver]: Analyzing ICFG sum_non_eq_true-unreach-call_true-termination_true-no-overflow.c [2018-11-23 03:20:28,508 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-23 03:20:28,513 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-23 03:20:28,525 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-23 03:20:28,552 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-23 03:20:28,553 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-23 03:20:28,553 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-23 03:20:28,553 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-23 03:20:28,553 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-23 03:20:28,553 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-23 03:20:28,553 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-23 03:20:28,553 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-23 03:20:28,554 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-23 03:20:28,570 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-11-23 03:20:28,575 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-11-23 03:20:28,575 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:20:28,576 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:20:28,578 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:20:28,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:20:28,583 INFO L82 PathProgramCache]: Analyzing trace with hash 2001781660, now seen corresponding path program 1 times [2018-11-23 03:20:28,585 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:20:28,585 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:20:28,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:28,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:20:28,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:28,884 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-23 03:20:28,886 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-23 03:20:28,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-23 03:20:28,890 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-23 03:20:28,901 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-23 03:20:28,902 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-23 03:20:28,903 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2018-11-23 03:20:29,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:20:29,029 INFO L93 Difference]: Finished difference Result 32 states and 35 transitions. [2018-11-23 03:20:29,030 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-23 03:20:29,030 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2018-11-23 03:20:29,031 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:20:29,037 INFO L225 Difference]: With dead ends: 32 [2018-11-23 03:20:29,037 INFO L226 Difference]: Without dead ends: 18 [2018-11-23 03:20:29,040 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-23 03:20:29,055 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-23 03:20:29,068 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-23 03:20:29,069 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-23 03:20:29,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2018-11-23 03:20:29,071 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 13 [2018-11-23 03:20:29,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:20:29,071 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2018-11-23 03:20:29,071 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-23 03:20:29,071 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2018-11-23 03:20:29,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-23 03:20:29,072 INFO L394 BasicCegarLoop]: Found error trace [2018-11-23 03:20:29,072 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-23 03:20:29,073 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-23 03:20:29,073 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-23 03:20:29,073 INFO L82 PathProgramCache]: Analyzing trace with hash -118151420, now seen corresponding path program 1 times [2018-11-23 03:20:29,073 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-23 03:20:29,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-23 03:20:29,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:29,074 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:20:29,074 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-23 03:20:29,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:29,237 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2018-11-23 03:20:29,238 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-23 03:20:29,238 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-23 03:20:29,255 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-23 03:20:29,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-23 03:20:29,271 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-23 03:20:29,404 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2018-11-23 03:20:29,420 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-23 03:20:29,420 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8] total 13 [2018-11-23 03:20:29,421 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2018-11-23 03:20:29,421 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2018-11-23 03:20:29,421 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=29, Invalid=127, Unknown=0, NotChecked=0, Total=156 [2018-11-23 03:20:29,421 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 13 states. [2018-11-23 03:20:29,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-23 03:20:29,510 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-23 03:20:29,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-11-23 03:20:29,510 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 19 [2018-11-23 03:20:29,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-23 03:20:29,511 INFO L225 Difference]: With dead ends: 23 [2018-11-23 03:20:29,511 INFO L226 Difference]: Without dead ends: 0 [2018-11-23 03:20:29,512 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=246, Unknown=0, NotChecked=0, Total=306 [2018-11-23 03:20:29,512 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-23 03:20:29,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-23 03:20:29,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-23 03:20:29,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-23 03:20:29,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-11-23 03:20:29,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-23 03:20:29,513 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-23 03:20:29,513 INFO L481 AbstractCegarLoop]: Interpolant automaton has 13 states. [2018-11-23 03:20:29,513 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-23 03:20:29,513 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-23 03:20:29,516 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-23 03:20:29,550 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-23 03:20:29,550 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-23 03:20:29,551 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point sumEXIT(lines 4 10) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L444 ceAbstractionStarter]: At program point L8(line 8) the Hoare annotation is: (and (= sum_~n |sum_#in~n|) (= |sum_#in~m| sum_~m)) [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point L8-1(line 8) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 9) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L448 ceAbstractionStarter]: For program point sumFINAL(lines 4 10) no Hoare annotation was computed. [2018-11-23 03:20:29,551 INFO L451 ceAbstractionStarter]: At program point sumENTRY(lines 4 10) the Hoare annotation is: true [2018-11-23 03:20:29,551 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 12 19) the Hoare annotation is: true [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 17) no Hoare annotation was computed. [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 12 19) no Hoare annotation was computed. [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point L17(line 17) no Hoare annotation was computed. [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point L16(lines 16 18) no Hoare annotation was computed. [2018-11-23 03:20:29,552 INFO L451 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: true [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point L15-1(line 15) no Hoare annotation was computed. [2018-11-23 03:20:29,552 INFO L448 ceAbstractionStarter]: For program point L16-2(lines 12 19) no Hoare annotation was computed. [2018-11-23 03:20:29,554 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.11 03:20:29 BoogieIcfgContainer [2018-11-23 03:20:29,554 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-23 03:20:29,555 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-23 03:20:29,555 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-23 03:20:29,555 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-23 03:20:29,555 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.11 03:20:28" (3/4) ... [2018-11-23 03:20:29,558 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-23 03:20:29,563 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-23 03:20:29,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure sum [2018-11-23 03:20:29,564 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-23 03:20:29,568 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-23 03:20:29,568 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-23 03:20:29,568 INFO L879 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-23 03:20:29,597 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_762a9324-6bb4-4380-b96f-6a78d7839eda/bin-2019/uautomizer/witness.graphml [2018-11-23 03:20:29,597 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-23 03:20:29,597 INFO L168 Benchmark]: Toolchain (without parser) took 1475.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 959.1 MB in the beginning and 1.0 GB in the end (delta: -75.8 MB). Peak memory consumption was 86.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,598 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:29,599 INFO L168 Benchmark]: CACSL2BoogieTranslator took 138.66 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,599 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-23 03:20:29,599 INFO L168 Benchmark]: Boogie Preprocessor took 15.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,600 INFO L168 Benchmark]: RCFGBuilder took 197.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,600 INFO L168 Benchmark]: TraceAbstraction took 1062.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,601 INFO L168 Benchmark]: Witness Printer took 42.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. [2018-11-23 03:20:29,605 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 138.66 ms. Allocated memory is still 1.0 GB. Free memory was 959.1 MB in the beginning and 948.4 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 15.13 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.50 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 197.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 162.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -200.7 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1062.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.2 MB). Peak memory consumption was 108.2 MB. Max. memory is 11.5 GB. * Witness Printer took 42.29 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 3.3 MB). Peak memory consumption was 3.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 17]: 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 4 procedures, 20 locations, 1 error locations. SAFE Result, 1.0s OverallTime, 2 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 25 SDtfs, 12 SDslu, 85 SDs, 0 SdLazy, 91 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 9 PreInvPairs, 9 NumberOfFragments, 13 HoareAnnotationTreeSize, 9 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 7 FomulaSimplificationsInter, 3 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 51 NumberOfCodeBlocks, 51 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 48 ConstructedInterpolants, 0 QuantifiedInterpolants, 6090 SizeOfPredicates, 7 NumberOfNonLiveVariables, 51 ConjunctsInSsa, 28 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 5/8 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...