./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/array-1.c --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_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/array-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/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 1933a74e6216ebab1567a755608ab53b0dd0aaf9 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 11:27:36,051 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 11:27:36,053 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 11:27:36,060 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 11:27:36,060 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 11:27:36,061 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 11:27:36,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 11:27:36,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 11:27:36,065 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 11:27:36,066 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 11:27:36,067 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 11:27:36,068 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 11:27:36,068 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 11:27:36,069 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 11:27:36,070 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 11:27:36,071 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 11:27:36,071 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 11:27:36,072 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 11:27:36,073 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 11:27:36,075 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 11:27:36,076 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 11:27:36,077 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 11:27:36,077 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 11:27:36,078 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 11:27:36,080 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 11:27:36,080 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 11:27:36,080 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 11:27:36,080 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 11:27:36,081 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 11:27:36,081 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 11:27:36,082 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 11:27:36,082 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 11:27:36,082 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 11:27:36,083 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 11:27:36,084 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 11:27:36,084 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 11:27:36,084 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 11:27:36,084 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 11:27:36,084 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 11:27:36,085 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 11:27:36,085 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 11:27:36,086 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-12-07 11:27:36,098 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 11:27:36,098 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 11:27:36,099 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-12-07 11:27:36,099 INFO L138 SettingsManager]: * User list type=DISABLED [2019-12-07 11:27:36,099 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-12-07 11:27:36,100 INFO L138 SettingsManager]: * Explicit value domain=true [2019-12-07 11:27:36,100 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-12-07 11:27:36,100 INFO L138 SettingsManager]: * Octagon Domain=false [2019-12-07 11:27:36,100 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-12-07 11:27:36,100 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-12-07 11:27:36,101 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-12-07 11:27:36,101 INFO L138 SettingsManager]: * Interval Domain=false [2019-12-07 11:27:36,101 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-12-07 11:27:36,101 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-12-07 11:27:36,102 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-12-07 11:27:36,102 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 11:27:36,102 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 11:27:36,102 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 11:27:36,103 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 11:27:36,103 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 11:27:36,103 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-07 11:27:36,103 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-07 11:27:36,103 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-07 11:27:36,104 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2019-12-07 11:27:36,104 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 11:27:36,104 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 11:27:36,104 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 11:27:36,104 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-07 11:27:36,105 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 11:27:36,105 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-07 11:27:36,105 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-07 11:27:36,105 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-07 11:27:36,105 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 11:27:36,105 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-07 11:27:36,106 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-07 11:27:36,106 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-12-07 11:27:36,106 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-07 11:27:36,106 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-07 11:27:36,106 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 11:27:36,107 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-07 11:27:36,107 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_90812a34-7c95-43c7-b5cc-bb33df515291/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 -> 1933a74e6216ebab1567a755608ab53b0dd0aaf9 [2019-12-07 11:27:36,212 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 11:27:36,221 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 11:27:36,224 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 11:27:36,225 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 11:27:36,225 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 11:27:36,225 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/../../sv-benchmarks/c/loops/array-1.c [2019-12-07 11:27:36,260 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/data/8e9a984bb/5f79c967b33c427fb7b502244049a577/FLAGd1c1db954 [2019-12-07 11:27:36,567 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 11:27:36,567 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/sv-benchmarks/c/loops/array-1.c [2019-12-07 11:27:36,571 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/data/8e9a984bb/5f79c967b33c427fb7b502244049a577/FLAGd1c1db954 [2019-12-07 11:27:37,006 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/data/8e9a984bb/5f79c967b33c427fb7b502244049a577 [2019-12-07 11:27:37,008 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 11:27:37,010 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 11:27:37,010 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 11:27:37,011 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 11:27:37,014 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 11:27:37,015 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,017 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d97e079 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37, skipping insertion in model container [2019-12-07 11:27:37,017 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,023 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 11:27:37,035 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 11:27:37,138 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:27:37,140 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 11:27:37,192 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 11:27:37,207 INFO L208 MainTranslator]: Completed translation [2019-12-07 11:27:37,207 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37 WrapperNode [2019-12-07 11:27:37,208 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 11:27:37,208 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 11:27:37,208 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 11:27:37,208 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 11:27:37,214 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,219 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 11:27:37,234 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 11:27:37,234 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 11:27:37,234 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 11:27:37,243 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,243 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,245 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,245 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,249 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... [2019-12-07 11:27:37,256 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 11:27:37,256 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 11:27:37,256 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 11:27:37,256 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 11:27:37,257 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/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 11:27:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-07 11:27:37,304 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 11:27:37,304 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 11:27:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-12-07 11:27:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-07 11:27:37,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-07 11:27:37,487 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 11:27:37,488 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-07 11:27:37,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:37 BoogieIcfgContainer [2019-12-07 11:27:37,489 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 11:27:37,489 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-07 11:27:37,489 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-07 11:27:37,492 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-07 11:27:37,492 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.12 11:27:37" (1/3) ... [2019-12-07 11:27:37,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775e59cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:27:37, skipping insertion in model container [2019-12-07 11:27:37,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 11:27:37" (2/3) ... [2019-12-07 11:27:37,493 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@775e59cb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.12 11:27:37, skipping insertion in model container [2019-12-07 11:27:37,493 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:37" (3/3) ... [2019-12-07 11:27:37,495 INFO L109 eAbstractionObserver]: Analyzing ICFG array-1.c [2019-12-07 11:27:37,501 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-07 11:27:37,505 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-07 11:27:37,513 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-12-07 11:27:37,527 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-07 11:27:37,527 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-07 11:27:37,527 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-07 11:27:37,528 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 11:27:37,528 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 11:27:37,528 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-07 11:27:37,528 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 11:27:37,528 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-07 11:27:37,538 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2019-12-07 11:27:37,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-12-07 11:27:37,543 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:37,543 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-12-07 11:27:37,544 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:37,548 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:37,549 INFO L82 PathProgramCache]: Analyzing trace with hash 2035207, now seen corresponding path program 1 times [2019-12-07 11:27:37,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:27:37,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1953140974] [2019-12-07 11:27:37,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:27:37,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:37,704 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 11:27:37,704 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1953140974] [2019-12-07 11:27:37,705 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 11:27:37,705 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-12-07 11:27:37,705 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1697191608] [2019-12-07 11:27:37,708 INFO L442 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-12-07 11:27:37,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:27:37,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 11:27:37,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:27:37,718 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 3 states. [2019-12-07 11:27:37,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:37,735 INFO L93 Difference]: Finished difference Result 13 states and 15 transitions. [2019-12-07 11:27:37,735 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 11:27:37,736 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2019-12-07 11:27:37,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:37,742 INFO L225 Difference]: With dead ends: 13 [2019-12-07 11:27:37,742 INFO L226 Difference]: Without dead ends: 6 [2019-12-07 11:27:37,744 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 11:27:37,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2019-12-07 11:27:37,763 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2019-12-07 11:27:37,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2019-12-07 11:27:37,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2019-12-07 11:27:37,765 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2019-12-07 11:27:37,765 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:37,765 INFO L462 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2019-12-07 11:27:37,766 INFO L463 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-12-07 11:27:37,766 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2019-12-07 11:27:37,766 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-12-07 11:27:37,766 INFO L402 BasicCegarLoop]: Found error trace [2019-12-07 11:27:37,766 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-12-07 11:27:37,766 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-07 11:27:37,766 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 11:27:37,766 INFO L82 PathProgramCache]: Analyzing trace with hash 63196130, now seen corresponding path program 1 times [2019-12-07 11:27:37,766 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-12-07 11:27:37,767 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1090823371] [2019-12-07 11:27:37,767 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 11:27:37,787 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:37,902 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 11:27:37,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1090823371] [2019-12-07 11:27:37,903 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1122703089] [2019-12-07 11:27:37,903 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/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 11:27:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 11:27:37,936 INFO L264 TraceCheckSpWp]: Trace formula consists of 38 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-07 11:27:37,939 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-07 11:27:37,958 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,960 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,961 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,964 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,965 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,966 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,968 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,969 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,970 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,971 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,972 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,973 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,974 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,975 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,976 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,977 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,979 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,980 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,981 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,982 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,983 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,984 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:37,985 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,025 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-12-07 11:27:38,026 INFO L534 ElimStorePlain]: Start of recursive call 2: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,034 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-12-07 11:27:38,034 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,040 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:38,040 INFO L534 ElimStorePlain]: Start of recursive call 4: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,045 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:38,045 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,093 INFO L614 ElimStorePlain]: treesize reduction 107, result has 39.5 percent of original size [2019-12-07 11:27:38,097 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2019-12-07 11:27:38,097 INFO L534 ElimStorePlain]: Start of recursive call 6: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,111 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,111 INFO L502 ElimStorePlain]: Eliminatee v_prenex_4 vanished before elimination [2019-12-07 11:27:38,113 INFO L534 ElimStorePlain]: Start of recursive call 1: 6 dim-0 vars, 3 dim-2 vars, End of recursive call: 2 dim-0 vars, and 2 xjuncts. [2019-12-07 11:27:38,113 INFO L239 ElimStorePlain]: Needed 6 recursive calls to eliminate 9 variables, input treesize:289, output treesize:40 [2019-12-07 11:27:38,136 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,148 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 11:27:38,148 INFO L329 TraceCheckSpWp]: Computing backward predicates... [2019-12-07 11:27:38,168 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,169 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,170 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,171 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,172 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,175 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,179 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,180 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,182 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,183 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,184 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,205 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2019-12-07 11:27:38,224 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2019-12-07 11:27:38,224 INFO L534 ElimStorePlain]: Start of recursive call 3: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,227 INFO L614 ElimStorePlain]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 11:27:38,227 INFO L534 ElimStorePlain]: Start of recursive call 2: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,281 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,289 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 59 treesize of output 53 [2019-12-07 11:27:38,307 INFO L343 Elim1Store]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,307 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 159 treesize of output 151 [2019-12-07 11:27:38,308 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,309 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,310 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,311 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,312 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,313 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,314 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,315 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,316 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,317 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,319 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,320 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,321 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,322 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,323 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,324 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,325 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,326 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,327 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,328 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,329 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,330 INFO L534 ElimStorePlain]: Start of recursive call 5: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,349 INFO L614 ElimStorePlain]: treesize reduction 291, result has 3.0 percent of original size [2019-12-07 11:27:38,350 INFO L534 ElimStorePlain]: Start of recursive call 4: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,444 INFO L614 ElimStorePlain]: treesize reduction 9, result has 95.7 percent of original size [2019-12-07 11:27:38,451 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 19 treesize of output 17 [2019-12-07 11:27:38,461 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 30 treesize of output 28 [2019-12-07 11:27:38,462 INFO L534 ElimStorePlain]: Start of recursive call 7: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,464 INFO L614 ElimStorePlain]: treesize reduction 9, result has 10.0 percent of original size [2019-12-07 11:27:38,464 INFO L534 ElimStorePlain]: Start of recursive call 6: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,509 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,515 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2019-12-07 11:27:38,524 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2019-12-07 11:27:38,524 INFO L534 ElimStorePlain]: Start of recursive call 9: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,526 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,526 INFO L534 ElimStorePlain]: Start of recursive call 8: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,571 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,577 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 57 treesize of output 51 [2019-12-07 11:27:38,587 INFO L343 Elim1Store]: treesize reduction 14, result has 6.7 percent of original size [2019-12-07 11:27:38,588 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 2 select indices, 2 select index equivalence classes, 0 disjoint index pairs (out of 1 index pairs), introduced 2 new quantified variables, introduced 1 case distinctions, treesize of input 157 treesize of output 133 [2019-12-07 11:27:38,588 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,589 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,590 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,591 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,592 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,593 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,593 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,594 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,595 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,596 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,597 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,598 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,599 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,600 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-07 11:27:38,601 INFO L534 ElimStorePlain]: Start of recursive call 11: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,606 INFO L614 ElimStorePlain]: treesize reduction 27, result has 25.0 percent of original size [2019-12-07 11:27:38,607 INFO L534 ElimStorePlain]: Start of recursive call 10: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,648 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,653 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 18 treesize of output 16 [2019-12-07 11:27:38,660 INFO L377 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 28 treesize of output 26 [2019-12-07 11:27:38,660 INFO L534 ElimStorePlain]: Start of recursive call 13: End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,662 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,663 INFO L534 ElimStorePlain]: Start of recursive call 12: 1 dim-1 vars, End of recursive call: and 1 xjuncts. [2019-12-07 11:27:38,699 INFO L614 ElimStorePlain]: treesize reduction 0, result has 100.0 percent of original size [2019-12-07 11:27:38,700 INFO L534 ElimStorePlain]: Start of recursive call 1: 24 dim-0 vars, 6 dim-2 vars, End of recursive call: 9 dim-0 vars, and 6 xjuncts. [2019-12-07 11:27:38,701 INFO L239 ElimStorePlain]: Needed 13 recursive calls to eliminate 30 variables, input treesize:276, output treesize:115 [2019-12-07 11:27:40,398 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 11:27:40,398 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [931401736] [2019-12-07 11:27:40,416 INFO L159 IcfgInterpreter]: Started Sifa with 5 locations of interest [2019-12-07 11:27:40,417 INFO L166 IcfgInterpreter]: Building call graph [2019-12-07 11:27:40,421 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-12-07 11:27:40,426 INFO L176 IcfgInterpreter]: Starting interpretation [2019-12-07 11:27:40,427 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-12-07 11:27:40,454 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:40,595 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:40,600 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:40,613 WARN L227 Elim1Store]: Array PQE input equivalent to false [2019-12-07 11:27:40,630 INFO L180 IcfgInterpreter]: Interpretation finished [2019-12-07 11:27:40,833 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-12-07 11:27:40,833 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-12-07 11:27:40,833 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 9 [2019-12-07 11:27:40,834 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [829425109] [2019-12-07 11:27:40,834 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-07 11:27:40,834 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-12-07 11:27:40,834 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-07 11:27:40,835 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=118, Unknown=0, NotChecked=0, Total=156 [2019-12-07 11:27:40,835 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 10 states. [2019-12-07 11:27:40,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 11:27:40,881 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2019-12-07 11:27:40,882 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-12-07 11:27:40,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 5 [2019-12-07 11:27:40,882 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-07 11:27:40,882 INFO L225 Difference]: With dead ends: 6 [2019-12-07 11:27:40,882 INFO L226 Difference]: Without dead ends: 0 [2019-12-07 11:27:40,883 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2019-12-07 11:27:40,883 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-12-07 11:27:40,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-12-07 11:27:40,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-12-07 11:27:40,883 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-12-07 11:27:40,883 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2019-12-07 11:27:40,883 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-07 11:27:40,883 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-12-07 11:27:40,884 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-07 11:27:40,884 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-12-07 11:27:40,884 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-12-07 11:27:41,084 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-07 11:27:41,089 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-12-07 11:27:41,164 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-12-07 11:27:41,164 INFO L242 CegarLoopResult]: At program point L19-3(lines 19 24) the Hoare annotation is: (let ((.cse0 (= ULTIMATE.start_main_~SIZE~0 1)) (.cse1 (= 0 |ULTIMATE.start_main_~#array~0.offset|))) (or (and (<= (+ ULTIMATE.start_main_~j~0 1) ULTIMATE.start_main_~SIZE~0) .cse0 .cse1 (<= 0 ULTIMATE.start_main_~j~0)) (and (<= ULTIMATE.start_main_~menor~0 (select (select |#memory_int| |ULTIMATE.start_main_~#array~0.base|) |ULTIMATE.start_main_~#array~0.offset|)) .cse0 .cse1))) [2019-12-07 11:27:41,164 INFO L246 CegarLoopResult]: For program point L5(line 5) no Hoare annotation was computed. [2019-12-07 11:27:41,164 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-12-07 11:27:41,164 INFO L246 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-12-07 11:27:41,164 INFO L246 CegarLoopResult]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-12-07 11:27:41,164 INFO L249 CegarLoopResult]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2019-12-07 11:27:41,173 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 11:27:41,179 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 11:27:41,181 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.12 11:27:41 BoogieIcfgContainer [2019-12-07 11:27:41,181 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-07 11:27:41,182 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 11:27:41,182 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 11:27:41,182 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 11:27:41,182 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 11:27:37" (3/4) ... [2019-12-07 11:27:41,185 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-12-07 11:27:41,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2019-12-07 11:27:41,192 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-12-07 11:27:41,193 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-12-07 11:27:41,228 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_90812a34-7c95-43c7-b5cc-bb33df515291/bin/utaipan/witness.graphml [2019-12-07 11:27:41,228 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 11:27:41,229 INFO L168 Benchmark]: Toolchain (without parser) took 4220.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.0 GB in the end (delta: -101.7 MB). Peak memory consumption was 5.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,230 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:27:41,230 INFO L168 Benchmark]: CACSL2BoogieTranslator took 197.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,230 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,230 INFO L168 Benchmark]: Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 11:27:41,231 INFO L168 Benchmark]: RCFGBuilder took 232.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,231 INFO L168 Benchmark]: TraceAbstraction took 3692.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,231 INFO L168 Benchmark]: Witness Printer took 46.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-12-07 11:27:41,234 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 197.29 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 107.0 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -162.4 MB). Peak memory consumption was 23.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.91 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.78 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 232.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3692.22 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 25.3 MB). Peak memory consumption was 25.3 MB. Max. memory is 11.5 GB. * Witness Printer took 46.66 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int - GenericResult: Unfinished Backtranslation unknown boogie variable #memory_int * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: 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: 19]: Loop Invariant [2019-12-07 11:27:41,238 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int [2019-12-07 11:27:41,239 WARN L1295 BoogieBacktranslator]: unknown boogie variable #memory_int Derived loop invariant: (((j + 1 <= SIZE && SIZE == 1) && 0 == array) && 0 <= j) || ((menor <= unknown-#memory_int-unknown[array][array] && SIZE == 1) && 0 == array) - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Result: SAFE, OverallTime: 3.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 7 SDtfs, 4 SDslu, 6 SDs, 0 SdLazy, 14 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 22 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 1 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 2.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred 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, 4 NumberOfFragments, 31 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 2.6s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 2 QuantifiedInterpolants, 516 SizeOfPredicates, 16 NumberOfNonLiveVariables, 38 ConjunctsInSsa, 12 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...