./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/sum01-2.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/sum01-2.i -s /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan --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 Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 3ef497a13bffaa6a3ec01f2d87f935fee9ff2c5a ................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 12:36:40,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 12:36:40,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 12:36:40,293 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 12:36:40,293 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 12:36:40,294 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 12:36:40,295 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 12:36:40,297 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 12:36:40,299 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 12:36:40,300 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 12:36:40,300 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 12:36:40,301 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 12:36:40,302 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 12:36:40,303 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 12:36:40,303 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 12:36:40,305 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 12:36:40,305 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 12:36:40,306 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 12:36:40,307 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 12:36:40,309 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 12:36:40,310 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 12:36:40,310 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 12:36:40,311 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 12:36:40,311 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 12:36:40,313 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 12:36:40,313 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 12:36:40,313 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 12:36:40,314 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 12:36:40,314 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 12:36:40,315 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 12:36:40,315 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 12:36:40,315 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 12:36:40,316 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 12:36:40,316 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 12:36:40,317 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 12:36:40,317 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 12:36:40,318 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 12:36:40,318 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 12:36:40,318 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 12:36:40,319 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 12:36:40,319 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 12:36:40,320 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 12:36:40,333 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 12:36:40,333 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 12:36:40,334 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 12:36:40,334 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 12:36:40,334 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 12:36:40,334 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 12:36:40,335 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 12:36:40,336 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 12:36:40,336 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 12:36:40,336 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 12:36:40,337 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 12:36:40,337 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 12:36:40,337 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 12:36:40,337 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 12:36:40,337 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 12:36:40,338 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 12:36:40,339 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 12:36:40,339 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 12:36:40,339 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 12:36:40,339 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 12:36:40,339 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 12:36:40,339 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 12:36:40,340 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 12:36:40,340 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 12:36:40,340 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 12:36:40,340 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 12:36:40,340 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 12:36:40,340 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 12:36:40,341 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 12:36:40,341 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 12:36:40,341 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan 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 -> Taipan 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 -> 3ef497a13bffaa6a3ec01f2d87f935fee9ff2c5a [2019-12-07 12:36:40,450 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 12:36:40,460 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 12:36:40,462 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 12:36:40,464 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 12:36:40,464 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 12:36:40,465 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/../../sv-benchmarks/c/loops/sum01-2.i [2019-12-07 12:36:40,508 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/data/ea6aa5c51/f2fece311c4a4bc1b506994a2135f74e/FLAGc9323117a [2019-12-07 12:36:40,927 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 12:36:40,927 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/sv-benchmarks/c/loops/sum01-2.i [2019-12-07 12:36:40,931 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/data/ea6aa5c51/f2fece311c4a4bc1b506994a2135f74e/FLAGc9323117a [2019-12-07 12:36:40,939 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/data/ea6aa5c51/f2fece311c4a4bc1b506994a2135f74e [2019-12-07 12:36:40,941 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 12:36:40,942 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 12:36:40,943 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:40,943 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 12:36:40,945 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 12:36:40,945 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,948 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6a9108f4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:40, skipping insertion in model container [2019-12-07 12:36:40,948 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 12:36:40" (1/1) ... [2019-12-07 12:36:40,952 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 12:36:40,964 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 12:36:41,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:41,068 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 12:36:41,109 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 12:36:41,118 INFO L208 MainTranslator]: Completed translation [2019-12-07 12:36:41,119 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41 WrapperNode [2019-12-07 12:36:41,119 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 12:36:41,119 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:41,119 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 12:36:41,119 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 12:36:41,125 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,128 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,139 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 12:36:41,140 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 12:36:41,140 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 12:36:41,140 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 12:36:41,145 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,146 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,146 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,146 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,147 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,150 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,150 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... [2019-12-07 12:36:41,151 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 12:36:41,151 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 12:36:41,151 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 12:36:41,152 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 12:36:41,152 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/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 [2019-12-07 12:36:41,190 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 12:36:41,190 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 12:36:41,298 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 12:36:41,298 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 12:36:41,299 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:41 BoogieIcfgContainer [2019-12-07 12:36:41,299 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 12:36:41,299 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 12:36:41,299 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 12:36:41,301 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 12:36:41,301 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 12:36:40" (1/3) ... [2019-12-07 12:36:41,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14af78e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:41, skipping insertion in model container [2019-12-07 12:36:41,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 12:36:41" (2/3) ... [2019-12-07 12:36:41,302 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@14af78e0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 12:36:41, skipping insertion in model container [2019-12-07 12:36:41,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:41" (3/3) ... [2019-12-07 12:36:41,303 INFO L109 eAbstractionObserver]: Analyzing ICFG sum01-2.i [2019-12-07 12:36:41,310 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 12:36:41,314 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 12:36:41,321 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 12:36:41,335 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 12:36:41,336 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 12:36:41,336 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 12:36:41,336 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 12:36:41,336 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 12:36:41,336 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 12:36:41,336 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 12:36:41,336 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 12:36:41,345 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states. [2019-12-07 12:36:41,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 12:36:41,348 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:36:41,348 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 12:36:41,349 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:36:41,352 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:36:41,352 INFO L82 PathProgramCache]: Analyzing trace with hash 29767713, now seen corresponding path program 1 times [2019-12-07 12:36:41,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:36:41,358 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [938849869] [2019-12-07 12:36:41,359 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:36:41,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:36:41,461 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:36:41,461 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [938849869] [2019-12-07 12:36:41,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 12:36:41,462 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 12:36:41,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [380936158] [2019-12-07 12:36:41,466 INFO L442 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-12-07 12:36:41,466 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:36:41,474 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-12-07 12:36:41,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-12-07 12:36:41,476 INFO L87 Difference]: Start difference. First operand 8 states. Second operand 4 states. [2019-12-07 12:36:41,507 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:36:41,507 INFO L93 Difference]: Finished difference Result 18 states and 19 transitions. [2019-12-07 12:36:41,507 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 12:36:41,508 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-12-07 12:36:41,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:36:41,514 INFO L225 Difference]: With dead ends: 18 [2019-12-07 12:36:41,514 INFO L226 Difference]: Without dead ends: 7 [2019-12-07 12:36:41,516 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-12-07 12:36:41,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2019-12-07 12:36:41,535 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2019-12-07 12:36:41,536 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2019-12-07 12:36:41,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 7 transitions. [2019-12-07 12:36:41,537 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 7 transitions. Word has length 5 [2019-12-07 12:36:41,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:36:41,537 INFO L462 AbstractCegarLoop]: Abstraction has 7 states and 7 transitions. [2019-12-07 12:36:41,537 INFO L463 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-12-07 12:36:41,537 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 7 transitions. [2019-12-07 12:36:41,537 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-12-07 12:36:41,538 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 12:36:41,538 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-12-07 12:36:41,538 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 12:36:41,538 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 12:36:41,538 INFO L82 PathProgramCache]: Analyzing trace with hash 922723147, now seen corresponding path program 1 times [2019-12-07 12:36:41,538 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 12:36:41,538 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1291041132] [2019-12-07 12:36:41,538 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 12:36:41,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:36:41,607 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:36:41,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1291041132] [2019-12-07 12:36:41,607 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1528558990] [2019-12-07 12:36:41,607 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/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 [2019-12-07 12:36:41,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 12:36:41,629 WARN L262 TraceCheckSpWp]: Trace formula consists of 25 conjuncts, 15 conjunts are in the unsatisfiable core [2019-12-07 12:36:41,633 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 12:36:41,679 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 12:36:41,694 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:36:41,694 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 12:36:41,752 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 12:36:41,752 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [708689720] [2019-12-07 12:36:41,773 INFO L159 IcfgInterpreter]: Started Sifa with 6 locations of interest [2019-12-07 12:36:41,773 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 12:36:41,778 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 12:36:41,783 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 12:36:41,784 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 12:36:41,896 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 12:36:41,991 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 12:36:41,991 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 12:36:41,992 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2019-12-07 12:36:41,993 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [608146813] [2019-12-07 12:36:41,993 INFO L442 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-12-07 12:36:41,994 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 12:36:41,994 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-12-07 12:36:41,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=193, Unknown=0, NotChecked=0, Total=240 [2019-12-07 12:36:41,995 INFO L87 Difference]: Start difference. First operand 7 states and 7 transitions. Second operand 12 states. [2019-12-07 12:36:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 12:36:42,099 INFO L93 Difference]: Finished difference Result 9 states and 10 transitions. [2019-12-07 12:36:42,099 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-12-07 12:36:42,099 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 6 [2019-12-07 12:36:42,099 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 12:36:42,099 INFO L225 Difference]: With dead ends: 9 [2019-12-07 12:36:42,099 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 12:36:42,101 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=82, Invalid=298, Unknown=0, NotChecked=0, Total=380 [2019-12-07 12:36:42,101 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 12:36:42,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 12:36:42,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 12:36:42,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 12:36:42,101 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 6 [2019-12-07 12:36:42,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 12:36:42,101 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 12:36:42,101 INFO L463 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-12-07 12:36:42,101 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 12:36:42,102 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 12:36:42,302 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 12:36:42,304 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 12:36:42,359 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 12:36:42,359 INFO L246 CegarLoopResult]: For program point L13(line 13) no Hoare annotation was computed. [2019-12-07 12:36:42,359 INFO L246 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-12-07 12:36:42,360 INFO L242 CegarLoopResult]: At program point L5-2(lines 1 18) the Hoare annotation is: (or (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) (= ULTIMATE.start_main_~sn~0 0)) [2019-12-07 12:36:42,360 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 12:36:42,360 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-12-07 12:36:42,360 INFO L242 CegarLoopResult]: At program point L14-3(lines 14 16) the Hoare annotation is: (or (and (= ULTIMATE.start_main_~sn~0 0) (= ULTIMATE.start_main_~i~0 1)) (let ((.cse1 (* 2 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~sn~0 2))) (and (<= .cse0 .cse1) (<= .cse1 .cse0) (< ULTIMATE.start_main_~sn~0 (+ (* 2 ULTIMATE.start_main_~n~0) 1))))) [2019-12-07 12:36:42,361 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-12-07 12:36:42,378 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 12:36:42 BoogieIcfgContainer [2019-12-07 12:36:42,378 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 12:36:42,378 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 12:36:42,378 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 12:36:42,379 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 12:36:42,379 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 12:36:41" (3/4) ... [2019-12-07 12:36:42,382 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 12:36:42,388 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-12-07 12:36:42,388 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-12-07 12:36:42,416 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_76723744-ce74-4469-bf72-4673fcaf026b/bin/utaipan/witness.graphml [2019-12-07 12:36:42,416 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 12:36:42,418 INFO L168 Benchmark]: Toolchain (without parser) took 1475.38 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.6 MB in the beginning and 993.1 MB in the end (delta: -55.5 MB). Peak memory consumption was 78.7 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,418 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 12:36:42,418 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,419 INFO L168 Benchmark]: Boogie Procedure Inliner took 20.06 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,419 INFO L168 Benchmark]: Boogie Preprocessor took 11.67 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,419 INFO L168 Benchmark]: RCFGBuilder took 147.30 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,420 INFO L168 Benchmark]: TraceAbstraction took 1078.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,420 INFO L168 Benchmark]: Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 993.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2019-12-07 12:36:42,422 INFO L335 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 954.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.50 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 134.2 MB). Free memory was 937.6 MB in the beginning and 1.1 GB in the end (delta: -196.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 20.06 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.67 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: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 147.30 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: 21.9 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1078.72 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 995.9 MB in the end (delta: 113.5 MB). Peak memory consumption was 113.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.07 ms. Allocated memory is still 1.2 GB. Free memory was 995.9 MB in the beginning and 993.1 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 6]: 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: 14]: Loop Invariant Derived loop invariant: (sn == 0 && i == 1) || ((sn + 2 <= 2 * i && 2 * i <= sn + 2) && sn < 2 * n + 1) - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: !(0 == cond) || sn == 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 8 locations, 1 error locations. Result: SAFE, OverallTime: 0.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 9 SDtfs, 14 SDslu, 13 SDs, 0 SdLazy, 29 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 29 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=8occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 7 NumberOfFragments, 38 HoareAnnotationTreeSize, 2 FomulaSimplifications, 8 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 17 NumberOfCodeBlocks, 17 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 19 ConstructedInterpolants, 0 QuantifiedInterpolants, 759 SizeOfPredicates, 6 NumberOfNonLiveVariables, 25 ConjunctsInSsa, 15 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 0/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...