./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i -s /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! overflow) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 ......................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-22 13:06:41,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:06:41,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:06:41,532 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:06:41,533 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:06:41,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:06:41,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:06:41,539 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:06:41,542 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:06:41,543 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:06:41,544 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:06:41,546 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:06:41,546 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:06:41,548 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:06:41,549 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:06:41,551 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:06:41,552 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:06:41,553 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:06:41,556 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:06:41,558 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:06:41,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:06:41,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:06:41,564 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:06:41,565 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:06:41,569 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:06:41,570 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:06:41,570 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:06:41,571 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:06:41,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:06:41,573 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:06:41,574 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:06:41,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:06:41,576 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:06:41,577 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:06:41,578 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:06:41,578 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:06:41,579 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:06:41,579 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:06:41,580 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:06:41,581 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:06:41,582 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:06:41,583 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-22 13:06:41,607 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:06:41,608 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:06:41,609 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:06:41,609 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:06:41,609 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:06:41,610 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:06:41,610 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:06:41,611 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:06:41,611 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:06:41,611 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:06:41,612 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:06:41,612 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:06:41,612 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:06:41,613 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:06:41,613 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:06:41,614 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:06:41,614 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:06:41,615 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:06:41,615 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:06:41,615 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:06:41,616 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:06:41,616 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:06:41,617 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-22 13:06:41,617 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:06:41,617 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:06:41,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:06:41,618 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:06:41,618 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:06:41,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:06:41,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:06:41,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:06:41,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:06:41,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:06:41,621 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:06:41,621 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:06:41,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:06:41,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:06:41,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:06:41,622 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2ecc737c5af1d503eeeb325d3c287e7ad2d57d21 [2020-11-22 13:06:41,918 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:06:41,944 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:06:41,946 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:06:41,947 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:06:41,954 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:06:41,955 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2020-11-22 13:06:42,038 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/data/3cf5c838e/f87aaaf838bb407c9eccda209a7c5753/FLAGbf5305df9 [2020-11-22 13:06:42,559 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:06:42,560 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/sv-benchmarks/c/signedintegeroverflow-regression/IntegerPromotion-1.i [2020-11-22 13:06:42,569 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/data/3cf5c838e/f87aaaf838bb407c9eccda209a7c5753/FLAGbf5305df9 [2020-11-22 13:06:42,890 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/data/3cf5c838e/f87aaaf838bb407c9eccda209a7c5753 [2020-11-22 13:06:42,892 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:06:42,895 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:06:42,901 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:42,901 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:06:42,904 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:06:42,906 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:42" (1/1) ... [2020-11-22 13:06:42,913 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30fb1956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:42, skipping insertion in model container [2020-11-22 13:06:42,913 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:06:42" (1/1) ... [2020-11-22 13:06:42,919 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:06:42,949 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:06:43,253 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:43,263 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:06:43,294 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:06:43,350 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:06:43,350 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43 WrapperNode [2020-11-22 13:06:43,350 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:06:43,351 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:43,352 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:06:43,352 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:06:43,359 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,370 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,385 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:06:43,386 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:06:43,386 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:06:43,386 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:06:43,394 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,395 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,397 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,397 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... [2020-11-22 13:06:43,403 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:06:43,404 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:06:43,404 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:06:43,404 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:06:43,405 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/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 [2020-11-22 13:06:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:06:43,487 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:06:43,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:06:43,766 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:06:43,766 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-22 13:06:43,768 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:43 BoogieIcfgContainer [2020-11-22 13:06:43,768 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:06:43,769 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:06:43,769 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:06:43,772 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:06:43,772 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:06:42" (1/3) ... [2020-11-22 13:06:43,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78968df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:43, skipping insertion in model container [2020-11-22 13:06:43,773 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:06:43" (2/3) ... [2020-11-22 13:06:43,773 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78968df4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:06:43, skipping insertion in model container [2020-11-22 13:06:43,774 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:43" (3/3) ... [2020-11-22 13:06:43,775 INFO L111 eAbstractionObserver]: Analyzing ICFG IntegerPromotion-1.i [2020-11-22 13:06:43,784 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:06:43,788 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2020-11-22 13:06:43,799 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-11-22 13:06:43,838 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:06:43,838 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:06:43,838 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:06:43,838 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:06:43,839 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:06:43,839 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:06:43,839 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:06:43,839 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:06:43,851 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states. [2020-11-22 13:06:43,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 3 [2020-11-22 13:06:43,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:43,856 INFO L422 BasicCegarLoop]: trace histogram [1, 1] [2020-11-22 13:06:43,857 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:06:43,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:43,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1398, now seen corresponding path program 1 times [2020-11-22 13:06:43,871 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:43,872 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1035844908] [2020-11-22 13:06:43,872 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:43,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,020 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,020 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1035844908] [2020-11-22 13:06:44,021 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:44,021 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:06:44,022 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [172499471] [2020-11-22 13:06:44,026 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:44,026 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:44,079 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:44,100 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:44,102 INFO L87 Difference]: Start difference. First operand 10 states. Second operand 3 states. [2020-11-22 13:06:44,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:44,144 INFO L93 Difference]: Finished difference Result 10 states and 9 transitions. [2020-11-22 13:06:44,145 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:44,146 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 2 [2020-11-22 13:06:44,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:44,154 INFO L225 Difference]: With dead ends: 10 [2020-11-22 13:06:44,154 INFO L226 Difference]: Without dead ends: 7 [2020-11-22 13:06:44,156 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:44,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7 states. [2020-11-22 13:06:44,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7 to 7. [2020-11-22 13:06:44,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 7 states. [2020-11-22 13:06:44,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 6 transitions. [2020-11-22 13:06:44,186 INFO L78 Accepts]: Start accepts. Automaton has 7 states and 6 transitions. Word has length 2 [2020-11-22 13:06:44,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:44,187 INFO L481 AbstractCegarLoop]: Abstraction has 7 states and 6 transitions. [2020-11-22 13:06:44,187 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:44,187 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states and 6 transitions. [2020-11-22 13:06:44,188 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2020-11-22 13:06:44,188 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:06:44,188 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1] [2020-11-22 13:06:44,188 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:06:44,189 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:06:44,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:06:44,190 INFO L82 PathProgramCache]: Analyzing trace with hash 43374, now seen corresponding path program 1 times [2020-11-22 13:06:44,190 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:06:44,190 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232717043] [2020-11-22 13:06:44,190 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:06:44,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-22 13:06:44,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-22 13:06:44,221 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232717043] [2020-11-22 13:06:44,221 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-22 13:06:44,222 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-22 13:06:44,222 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1436525252] [2020-11-22 13:06:44,223 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-22 13:06:44,223 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-22 13:06:44,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-22 13:06:44,224 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:44,224 INFO L87 Difference]: Start difference. First operand 7 states and 6 transitions. Second operand 3 states. [2020-11-22 13:06:44,252 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-22 13:06:44,252 INFO L93 Difference]: Finished difference Result 7 states and 6 transitions. [2020-11-22 13:06:44,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-22 13:06:44,253 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 3 [2020-11-22 13:06:44,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-22 13:06:44,253 INFO L225 Difference]: With dead ends: 7 [2020-11-22 13:06:44,253 INFO L226 Difference]: Without dead ends: 0 [2020-11-22 13:06:44,254 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-22 13:06:44,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-22 13:06:44,254 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-22 13:06:44,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-22 13:06:44,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-22 13:06:44,255 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 3 [2020-11-22 13:06:44,255 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-22 13:06:44,255 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-22 13:06:44,255 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-22 13:06:44,255 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-22 13:06:44,256 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-22 13:06:44,256 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-22 13:06:44,257 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-22 13:06:44,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-22 13:06:44,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,286 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,287 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-22 13:06:44,287 INFO L274 CegarLoopResult]: For program point L333(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,287 INFO L274 CegarLoopResult]: For program point L333-1(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,287 INFO L274 CegarLoopResult]: For program point L333-2(line 333) no Hoare annotation was computed. [2020-11-22 13:06:44,287 INFO L270 CegarLoopResult]: At program point L333-3(line 333) the Hoare annotation is: (and (<= ULTIMATE.start_main_~a~0 32767) (<= 32767 ULTIMATE.start_main_~a~0)) [2020-11-22 13:06:44,301 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:06:44 BoogieIcfgContainer [2020-11-22 13:06:44,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:06:44,302 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:06:44,303 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:06:44,303 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:06:44,303 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:06:43" (3/4) ... [2020-11-22 13:06:44,306 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-22 13:06:44,315 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2020-11-22 13:06:44,316 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-22 13:06:44,316 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-22 13:06:44,345 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_64fb950e-58fe-4494-bcc8-d6fc2adb4521/bin/utaipan/witness.graphml [2020-11-22 13:06:44,346 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:06:44,348 INFO L168 Benchmark]: Toolchain (without parser) took 1452.45 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 53.9 MB in the beginning and 78.3 MB in the end (delta: -24.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:44,348 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 71.0 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:44,349 INFO L168 Benchmark]: CACSL2BoogieTranslator took 449.67 ms. Allocated memory is still 92.3 MB. Free memory was 53.7 MB in the beginning and 61.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,350 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 60.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,350 INFO L168 Benchmark]: Boogie Preprocessor took 17.24 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 59.2 MB in the end (delta: 812.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:44,351 INFO L168 Benchmark]: RCFGBuilder took 363.77 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 46.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,351 INFO L168 Benchmark]: TraceAbstraction took 532.79 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 46.4 MB in the beginning and 80.4 MB in the end (delta: -34.0 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:06:44,352 INFO L168 Benchmark]: Witness Printer took 43.27 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:06:44,356 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 92.3 MB. Free memory was 71.0 MB in the beginning and 71.0 MB in the end (delta: 51.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 449.67 ms. Allocated memory is still 92.3 MB. Free memory was 53.7 MB in the beginning and 61.6 MB in the end (delta: -7.9 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 34.10 ms. Allocated memory is still 92.3 MB. Free memory was 61.6 MB in the beginning and 60.0 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 17.24 ms. Allocated memory is still 92.3 MB. Free memory was 60.0 MB in the beginning and 59.2 MB in the end (delta: 812.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 363.77 ms. Allocated memory is still 92.3 MB. Free memory was 58.9 MB in the beginning and 46.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 532.79 ms. Allocated memory was 92.3 MB in the beginning and 113.2 MB in the end (delta: 21.0 MB). Free memory was 46.4 MB in the beginning and 80.4 MB in the end (delta: -34.0 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 43.27 ms. Allocated memory is still 113.2 MB. Free memory was 80.4 MB in the beginning and 78.3 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 333]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 333]: Loop Invariant Derived loop invariant: a <= 32767 && 32767 <= a - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 10 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.4s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2 SDtfs, 8 SDslu, 0 SDs, 0 SdLazy, 9 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 2 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 7 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 5 NumberOfCodeBlocks, 5 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 3 ConstructedInterpolants, 0 QuantifiedInterpolants, 15 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...