./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/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 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a .............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-6b5699a [2019-11-26 02:52:26,067 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-26 02:52:26,068 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-26 02:52:26,082 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-26 02:52:26,082 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-26 02:52:26,083 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-26 02:52:26,084 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-26 02:52:26,086 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-26 02:52:26,088 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-26 02:52:26,089 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-26 02:52:26,090 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-26 02:52:26,091 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-26 02:52:26,091 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-26 02:52:26,092 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-26 02:52:26,093 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-26 02:52:26,095 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-26 02:52:26,100 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-26 02:52:26,101 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-26 02:52:26,103 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-26 02:52:26,105 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-26 02:52:26,106 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-26 02:52:26,107 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-26 02:52:26,108 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-26 02:52:26,109 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-26 02:52:26,111 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-26 02:52:26,112 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-26 02:52:26,112 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-26 02:52:26,117 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-26 02:52:26,118 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-26 02:52:26,118 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-26 02:52:26,119 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-26 02:52:26,119 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-26 02:52:26,120 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-26 02:52:26,121 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-26 02:52:26,122 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-26 02:52:26,122 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-26 02:52:26,122 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-26 02:52:26,123 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-26 02:52:26,123 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-26 02:52:26,123 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-26 02:52:26,124 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-26 02:52:26,125 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2019-11-26 02:52:26,138 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-26 02:52:26,138 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-26 02:52:26,139 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-11-26 02:52:26,139 INFO L138 SettingsManager]: * User list type=DISABLED [2019-11-26 02:52:26,139 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-11-26 02:52:26,139 INFO L138 SettingsManager]: * Explicit value domain=true [2019-11-26 02:52:26,139 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-11-26 02:52:26,140 INFO L138 SettingsManager]: * Octagon Domain=false [2019-11-26 02:52:26,140 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-11-26 02:52:26,140 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-11-26 02:52:26,140 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-11-26 02:52:26,140 INFO L138 SettingsManager]: * Interval Domain=false [2019-11-26 02:52:26,141 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2019-11-26 02:52:26,141 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2019-11-26 02:52:26,141 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2019-11-26 02:52:26,142 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-26 02:52:26,142 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-26 02:52:26,142 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-26 02:52:26,142 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-26 02:52:26,142 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-26 02:52:26,142 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-26 02:52:26,143 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-26 02:52:26,143 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-26 02:52:26,143 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-26 02:52:26,143 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-26 02:52:26,143 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-26 02:52:26,144 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-26 02:52:26,144 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-26 02:52:26,144 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-26 02:52:26,144 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-26 02:52:26,144 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-26 02:52:26,145 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-26 02:52:26,145 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-26 02:52:26,145 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2019-11-26 02:52:26,145 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-26 02:52:26,145 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-26 02:52:26,146 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-11-26 02:52:26,146 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_8a8c2573-174f-4410-bb6b-a31c929e444c/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 -> 2f1fbfc504f7d34c3bc972667a1559aaf9ac2c9a [2019-11-26 02:52:26,288 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-26 02:52:26,305 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-26 02:52:26,307 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-26 02:52:26,308 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-26 02:52:26,309 INFO L275 PluginConnector]: CDTParser initialized [2019-11-26 02:52:26,309 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/../../sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-26 02:52:26,358 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/data/5c4b7c24f/c1fdb071eced4374b0e532f72b7ba0dd/FLAG3278dc197 [2019-11-26 02:52:26,777 INFO L306 CDTParser]: Found 1 translation units. [2019-11-26 02:52:26,778 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/sv-benchmarks/c/loop-lit/jm2006.c.i.v+cfa-reducer.c [2019-11-26 02:52:26,783 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/data/5c4b7c24f/c1fdb071eced4374b0e532f72b7ba0dd/FLAG3278dc197 [2019-11-26 02:52:26,798 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/data/5c4b7c24f/c1fdb071eced4374b0e532f72b7ba0dd [2019-11-26 02:52:26,800 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-26 02:52:26,803 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-26 02:52:26,804 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:26,804 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-26 02:52:26,808 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-26 02:52:26,809 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:26" (1/1) ... [2019-11-26 02:52:26,812 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f521e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:26, skipping insertion in model container [2019-11-26 02:52:26,812 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.11 02:52:26" (1/1) ... [2019-11-26 02:52:26,818 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-26 02:52:26,838 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-26 02:52:27,021 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:27,078 INFO L201 MainTranslator]: Completed pre-run [2019-11-26 02:52:27,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-26 02:52:27,103 INFO L205 MainTranslator]: Completed translation [2019-11-26 02:52:27,103 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27 WrapperNode [2019-11-26 02:52:27,103 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-26 02:52:27,104 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:27,104 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-26 02:52:27,104 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-26 02:52:27,112 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,116 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,132 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-26 02:52:27,133 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-26 02:52:27,133 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-26 02:52:27,133 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-26 02:52:27,141 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,141 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,142 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,142 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,144 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,146 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... [2019-11-26 02:52:27,148 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-26 02:52:27,148 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-26 02:52:27,148 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-26 02:52:27,149 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-26 02:52:27,149 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/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 [2019-11-26 02:52:27,207 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-26 02:52:27,207 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-26 02:52:27,427 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-26 02:52:27,427 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-11-26 02:52:27,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:27 BoogieIcfgContainer [2019-11-26 02:52:27,429 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-26 02:52:27,429 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-26 02:52:27,430 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-26 02:52:27,432 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-26 02:52:27,432 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.11 02:52:26" (1/3) ... [2019-11-26 02:52:27,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487c3f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:27, skipping insertion in model container [2019-11-26 02:52:27,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.11 02:52:27" (2/3) ... [2019-11-26 02:52:27,433 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@487c3f31 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.11 02:52:27, skipping insertion in model container [2019-11-26 02:52:27,433 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:27" (3/3) ... [2019-11-26 02:52:27,435 INFO L109 eAbstractionObserver]: Analyzing ICFG jm2006.c.i.v+cfa-reducer.c [2019-11-26 02:52:27,457 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-26 02:52:27,462 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-11-26 02:52:27,479 INFO L249 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-11-26 02:52:27,501 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-26 02:52:27,501 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-26 02:52:27,501 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-26 02:52:27,502 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-26 02:52:27,502 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-26 02:52:27,502 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-26 02:52:27,503 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-26 02:52:27,503 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-26 02:52:27,513 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2019-11-26 02:52:27,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-11-26 02:52:27,517 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:27,518 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:52:27,518 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:27,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:27,523 INFO L82 PathProgramCache]: Analyzing trace with hash 2065207914, now seen corresponding path program 1 times [2019-11-26 02:52:27,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:27,529 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [370881036] [2019-11-26 02:52:27,529 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:27,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:27,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:27,779 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [370881036] [2019-11-26 02:52:27,779 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-26 02:52:27,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-11-26 02:52:27,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [762105526] [2019-11-26 02:52:27,784 INFO L442 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-11-26 02:52:27,785 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:27,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-11-26 02:52:27,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-11-26 02:52:27,799 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 5 states. [2019-11-26 02:52:27,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:27,963 INFO L93 Difference]: Finished difference Result 23 states and 26 transitions. [2019-11-26 02:52:27,964 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-11-26 02:52:27,965 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-11-26 02:52:27,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:27,972 INFO L225 Difference]: With dead ends: 23 [2019-11-26 02:52:27,973 INFO L226 Difference]: Without dead ends: 9 [2019-11-26 02:52:27,975 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-11-26 02:52:27,988 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-11-26 02:52:27,997 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-11-26 02:52:27,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-11-26 02:52:27,998 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-11-26 02:52:28,000 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-11-26 02:52:28,000 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:28,000 INFO L462 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-11-26 02:52:28,000 INFO L463 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-11-26 02:52:28,000 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-11-26 02:52:28,001 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-11-26 02:52:28,001 INFO L402 BasicCegarLoop]: Found error trace [2019-11-26 02:52:28,001 INFO L410 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-26 02:52:28,001 INFO L410 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-11-26 02:52:28,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-26 02:52:28,002 INFO L82 PathProgramCache]: Analyzing trace with hash -405003410, now seen corresponding path program 1 times [2019-11-26 02:52:28,002 INFO L163 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2019-11-26 02:52:28,002 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [333805362] [2019-11-26 02:52:28,003 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-26 02:52:28,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:28,107 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:28,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [333805362] [2019-11-26 02:52:28,107 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [228710390] [2019-11-26 02:52:28,107 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/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 [2019-11-26 02:52:28,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-26 02:52:28,152 WARN L253 TraceCheckSpWp]: Trace formula consists of 36 conjuncts, 18 conjunts are in the unsatisfiable core [2019-11-26 02:52:28,157 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2019-11-26 02:52:28,240 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:28,240 INFO L320 TraceCheckSpWp]: Computing backward predicates... [2019-11-26 02:52:28,309 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-26 02:52:28,310 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSifa [1089259558] [2019-11-26 02:52:28,334 INFO L159 IcfgInterpreter]: Started Sifa with 8 locations of interest [2019-11-26 02:52:28,334 INFO L166 IcfgInterpreter]: Building call graph [2019-11-26 02:52:28,350 INFO L171 IcfgInterpreter]: Initial procedures are [ULTIMATE.start] [2019-11-26 02:52:28,363 INFO L176 IcfgInterpreter]: Starting interpretation [2019-11-26 02:52:28,364 INFO L197 IcfgInterpreter]: Interpreting procedure ULTIMATE.start with input of size 1 for LOIs [2019-11-26 02:52:28,653 INFO L180 IcfgInterpreter]: Interpretation finished [2019-11-26 02:52:29,037 INFO L343 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: Unknown [2019-11-26 02:52:29,037 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2019-11-26 02:52:29,037 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6, 6] total 13 [2019-11-26 02:52:29,038 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1548896913] [2019-11-26 02:52:29,039 INFO L442 AbstractCegarLoop]: Interpolant automaton has 13 states [2019-11-26 02:52:29,039 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2019-11-26 02:52:29,039 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2019-11-26 02:52:29,040 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=270, Unknown=0, NotChecked=0, Total=342 [2019-11-26 02:52:29,040 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 13 states. [2019-11-26 02:52:29,194 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-26 02:52:29,195 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2019-11-26 02:52:29,195 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-11-26 02:52:29,195 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 8 [2019-11-26 02:52:29,195 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-11-26 02:52:29,195 INFO L225 Difference]: With dead ends: 12 [2019-11-26 02:52:29,196 INFO L226 Difference]: Without dead ends: 0 [2019-11-26 02:52:29,197 INFO L630 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=117, Invalid=389, Unknown=0, NotChecked=0, Total=506 [2019-11-26 02:52:29,197 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-11-26 02:52:29,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-11-26 02:52:29,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-11-26 02:52:29,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-11-26 02:52:29,198 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-11-26 02:52:29,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-11-26 02:52:29,198 INFO L462 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-11-26 02:52:29,198 INFO L463 AbstractCegarLoop]: Interpolant automaton has 13 states. [2019-11-26 02:52:29,199 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-11-26 02:52:29,199 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-26 02:52:29,403 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-11-26 02:52:29,406 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-11-26 02:52:29,447 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-26 02:52:29,447 INFO L447 ceAbstractionStarter]: At program point L60(lines 8 65) the Hoare annotation is: true [2019-11-26 02:52:29,447 INFO L444 ceAbstractionStarter]: For program point L48(line 48) no Hoare annotation was computed. [2019-11-26 02:52:29,447 INFO L444 ceAbstractionStarter]: For program point L46(lines 46 55) no Hoare annotation was computed. [2019-11-26 02:52:29,448 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-26 02:52:29,448 INFO L444 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 48) no Hoare annotation was computed. [2019-11-26 02:52:29,448 INFO L444 ceAbstractionStarter]: For program point L20(lines 20 63) no Hoare annotation was computed. [2019-11-26 02:52:29,448 INFO L444 ceAbstractionStarter]: For program point L14(lines 14 64) no Hoare annotation was computed. [2019-11-26 02:52:29,448 INFO L444 ceAbstractionStarter]: For program point L39(lines 39 61) no Hoare annotation was computed. [2019-11-26 02:52:29,449 INFO L440 ceAbstractionStarter]: At program point L35(lines 25 63) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__y~0)) (.cse0 (+ ULTIMATE.start_main_~main__x~0 ULTIMATE.start_main_~main__j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-11-26 02:52:29,461 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.11 02:52:29 BoogieIcfgContainer [2019-11-26 02:52:29,461 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-26 02:52:29,462 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-26 02:52:29,462 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-26 02:52:29,462 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-26 02:52:29,463 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.11 02:52:27" (3/4) ... [2019-11-26 02:52:29,466 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-26 02:52:29,478 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-11-26 02:52:29,479 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-26 02:52:29,538 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8a8c2573-174f-4410-bb6b-a31c929e444c/bin/utaipan/witness.graphml [2019-11-26 02:52:29,538 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-26 02:52:29,540 INFO L168 Benchmark]: Toolchain (without parser) took 2736.63 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 950.9 MB in the end (delta: -6.2 MB). Peak memory consumption was 140.1 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:29,541 INFO L168 Benchmark]: CDTParser took 4.70 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:29,541 INFO L168 Benchmark]: CACSL2BoogieTranslator took 299.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:29,542 INFO L168 Benchmark]: Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:29,542 INFO L168 Benchmark]: Boogie Preprocessor took 15.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-26 02:52:29,543 INFO L168 Benchmark]: RCFGBuilder took 280.44 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:29,543 INFO L168 Benchmark]: TraceAbstraction took 2031.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.3 MB in the end (delta: 166.6 MB). Peak memory consumption was 166.6 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:29,544 INFO L168 Benchmark]: Witness Printer took 76.78 ms. Allocated memory is still 1.2 GB. Free memory was 956.3 MB in the beginning and 950.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-26 02:52:29,546 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 4.70 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 299.27 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 944.7 MB in the beginning and 1.1 GB in the end (delta: -196.5 MB). Peak memory consumption was 22.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 28.51 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 15.44 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 280.44 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2031.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.3 MB in the end (delta: 166.6 MB). Peak memory consumption was 166.6 MB. Max. memory is 11.5 GB. * Witness Printer took 76.78 ms. Allocated memory is still 1.2 GB. Free memory was 956.3 MB in the beginning and 950.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 48]: 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: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: main__x + main__j <= main__i + main__y && main__i + main__y <= main__x + main__j - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 1 error locations. Result: SAFE, OverallTime: 1.9s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 13 SDtfs, 21 SDslu, 20 SDs, 0 SdLazy, 63 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 39 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 107 ImplicationChecksByTransitivity, 0.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=10occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 8 NumberOfFragments, 16 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 43 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 23 NumberOfCodeBlocks, 23 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 27 ConstructedInterpolants, 0 QuantifiedInterpolants, 1298 SizeOfPredicates, 8 NumberOfNonLiveVariables, 36 ConjunctsInSsa, 18 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...