./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c --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_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c -s /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/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 f9de9875f09e594325a645528f016ce12ac5c646 .......................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 01:40:07,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:40:07,576 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:40:07,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:40:07,644 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:40:07,650 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:40:07,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:40:07,657 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:40:07,660 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:40:07,667 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:40:07,668 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:40:07,671 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:40:07,671 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:40:07,675 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:40:07,678 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:40:07,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:40:07,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:40:07,686 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:40:07,690 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:40:07,701 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:40:07,703 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:40:07,704 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:40:07,707 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:40:07,708 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:40:07,717 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:40:07,718 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:40:07,718 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:40:07,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:40:07,722 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:40:07,723 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:40:07,723 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:40:07,725 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:40:07,727 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:40:07,728 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:40:07,730 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:40:07,730 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:40:07,731 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:40:07,731 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:40:07,732 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:40:07,733 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:40:07,733 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:40:07,737 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 01:40:07,779 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:40:07,779 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:40:07,781 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:40:07,781 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:40:07,782 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:40:07,782 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:40:07,782 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:40:07,782 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:40:07,783 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:40:07,783 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:40:07,784 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:40:07,785 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:40:07,785 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:40:07,785 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:40:07,786 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:40:07,786 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:40:07,787 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 01:40:07,787 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:40:07,787 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:40:07,787 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:40:07,788 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:40:07,788 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:40:07,788 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 01:40:07,789 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:40:07,789 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:40:07,789 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:40:07,789 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:40:07,790 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:40:07,790 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:40:07,791 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:40:07,791 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:40:07,791 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:40:07,792 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:40:07,792 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:40:07,792 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:40:07,792 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:40:07,793 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:40:07,793 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:40:07,793 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_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> f9de9875f09e594325a645528f016ce12ac5c646 [2020-11-30 01:40:08,111 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:40:08,144 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:40:08,150 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:40:08,152 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:40:08,153 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:40:08,154 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 01:40:08,237 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/data/ac33c13d3/2bc6dcd241f644b89fe7d76bc75c0992/FLAG1144804d1 [2020-11-30 01:40:08,730 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:40:08,731 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 01:40:08,743 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/data/ac33c13d3/2bc6dcd241f644b89fe7d76bc75c0992/FLAG1144804d1 [2020-11-30 01:40:09,091 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/data/ac33c13d3/2bc6dcd241f644b89fe7d76bc75c0992 [2020-11-30 01:40:09,094 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:40:09,095 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:40:09,097 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:40:09,097 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:40:09,101 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:40:09,102 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,104 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@224248d2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09, skipping insertion in model container [2020-11-30 01:40:09,104 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,112 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:40:09,126 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:40:09,272 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:40:09,275 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:40:09,305 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:40:09,318 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:40:09,318 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09 WrapperNode [2020-11-30 01:40:09,319 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:40:09,320 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:40:09,320 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:40:09,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:40:09,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,364 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:40:09,366 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:40:09,367 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:40:09,367 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:40:09,377 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,378 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,380 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,381 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,390 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... [2020-11-30 01:40:09,411 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:40:09,414 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:40:09,414 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:40:09,415 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:40:09,416 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/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 [2020-11-30 01:40:09,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:40:09,520 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:40:09,895 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:40:09,895 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-30 01:40:09,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:40:09 BoogieIcfgContainer [2020-11-30 01:40:09,897 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:40:09,898 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:40:09,898 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:40:09,910 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:40:09,910 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:40:09" (1/3) ... [2020-11-30 01:40:09,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393bd856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:40:09, skipping insertion in model container [2020-11-30 01:40:09,911 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:40:09" (2/3) ... [2020-11-30 01:40:09,911 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@393bd856 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:40:09, skipping insertion in model container [2020-11-30 01:40:09,912 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:40:09" (3/3) ... [2020-11-30 01:40:09,913 INFO L111 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig7a.c [2020-11-30 01:40:09,927 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:40:09,931 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 01:40:09,945 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 01:40:09,971 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:40:09,971 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:40:09,971 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:40:09,971 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:40:09,971 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:40:09,972 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:40:09,972 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:40:09,972 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:40:09,986 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-11-30 01:40:09,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:40:09,991 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:09,992 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:40:09,993 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:09,999 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,000 INFO L82 PathProgramCache]: Analyzing trace with hash 963531, now seen corresponding path program 1 times [2020-11-30 01:40:10,010 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,011 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1566066413] [2020-11-30 01:40:10,011 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,190 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1566066413] [2020-11-30 01:40:10,191 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,191 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:40:10,192 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1705041130] [2020-11-30 01:40:10,197 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,198 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,214 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,215 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,218 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 3 states. [2020-11-30 01:40:10,284 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,284 INFO L93 Difference]: Finished difference Result 16 states and 17 transitions. [2020-11-30 01:40:10,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,286 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 01:40:10,287 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,296 INFO L225 Difference]: With dead ends: 16 [2020-11-30 01:40:10,296 INFO L226 Difference]: Without dead ends: 14 [2020-11-30 01:40:10,300 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 [2020-11-30 01:40:10,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2020-11-30 01:40:10,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2020-11-30 01:40:10,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2020-11-30 01:40:10,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 15 transitions. [2020-11-30 01:40:10,351 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 15 transitions. Word has length 4 [2020-11-30 01:40:10,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,352 INFO L481 AbstractCegarLoop]: Abstraction has 14 states and 15 transitions. [2020-11-30 01:40:10,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,352 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 15 transitions. [2020-11-30 01:40:10,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:40:10,354 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:10,354 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:40:10,354 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:40:10,355 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:10,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,362 INFO L82 PathProgramCache]: Analyzing trace with hash 963339, now seen corresponding path program 1 times [2020-11-30 01:40:10,362 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,363 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [728961909] [2020-11-30 01:40:10,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,436 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,437 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [728961909] [2020-11-30 01:40:10,437 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,437 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:40:10,437 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997585516] [2020-11-30 01:40:10,439 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,440 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,440 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,441 INFO L87 Difference]: Start difference. First operand 14 states and 15 transitions. Second operand 3 states. [2020-11-30 01:40:10,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,472 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-11-30 01:40:10,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,473 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 4 [2020-11-30 01:40:10,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,474 INFO L225 Difference]: With dead ends: 14 [2020-11-30 01:40:10,474 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 01:40:10,475 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 [2020-11-30 01:40:10,476 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 01:40:10,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2020-11-30 01:40:10,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2020-11-30 01:40:10,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 14 transitions. [2020-11-30 01:40:10,479 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 14 transitions. Word has length 4 [2020-11-30 01:40:10,479 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,480 INFO L481 AbstractCegarLoop]: Abstraction has 13 states and 14 transitions. [2020-11-30 01:40:10,480 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,481 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 14 transitions. [2020-11-30 01:40:10,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:40:10,482 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:10,483 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:40:10,483 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 01:40:10,483 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:10,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,486 INFO L82 PathProgramCache]: Analyzing trace with hash 29869514, now seen corresponding path program 1 times [2020-11-30 01:40:10,486 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,487 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [617087150] [2020-11-30 01:40:10,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,548 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,549 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [617087150] [2020-11-30 01:40:10,549 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,549 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:40:10,550 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636450204] [2020-11-30 01:40:10,550 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,551 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,552 INFO L87 Difference]: Start difference. First operand 13 states and 14 transitions. Second operand 3 states. [2020-11-30 01:40:10,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,573 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2020-11-30 01:40:10,575 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,576 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:40:10,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,576 INFO L225 Difference]: With dead ends: 14 [2020-11-30 01:40:10,577 INFO L226 Difference]: Without dead ends: 13 [2020-11-30 01:40:10,577 INFO L677 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 [2020-11-30 01:40:10,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2020-11-30 01:40:10,580 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2020-11-30 01:40:10,580 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2020-11-30 01:40:10,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 13 transitions. [2020-11-30 01:40:10,581 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 13 transitions. Word has length 5 [2020-11-30 01:40:10,581 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,581 INFO L481 AbstractCegarLoop]: Abstraction has 12 states and 13 transitions. [2020-11-30 01:40:10,581 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,582 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 13 transitions. [2020-11-30 01:40:10,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:40:10,582 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:10,582 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:40:10,582 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 01:40:10,583 INFO L429 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:10,583 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,583 INFO L82 PathProgramCache]: Analyzing trace with hash 29863556, now seen corresponding path program 1 times [2020-11-30 01:40:10,584 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,587 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165174616] [2020-11-30 01:40:10,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,630 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,631 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165174616] [2020-11-30 01:40:10,631 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,631 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:40:10,632 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603768607] [2020-11-30 01:40:10,632 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,632 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,633 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,633 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,633 INFO L87 Difference]: Start difference. First operand 12 states and 13 transitions. Second operand 3 states. [2020-11-30 01:40:10,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,645 INFO L93 Difference]: Finished difference Result 12 states and 13 transitions. [2020-11-30 01:40:10,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,646 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 5 [2020-11-30 01:40:10,647 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,647 INFO L225 Difference]: With dead ends: 12 [2020-11-30 01:40:10,647 INFO L226 Difference]: Without dead ends: 11 [2020-11-30 01:40:10,648 INFO L677 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 [2020-11-30 01:40:10,648 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2020-11-30 01:40:10,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2020-11-30 01:40:10,651 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2020-11-30 01:40:10,651 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 12 transitions. [2020-11-30 01:40:10,651 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 12 transitions. Word has length 5 [2020-11-30 01:40:10,652 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,652 INFO L481 AbstractCegarLoop]: Abstraction has 11 states and 12 transitions. [2020-11-30 01:40:10,652 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,652 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 12 transitions. [2020-11-30 01:40:10,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 01:40:10,653 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:10,653 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 01:40:10,653 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-30 01:40:10,654 INFO L429 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:10,654 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,655 INFO L82 PathProgramCache]: Analyzing trace with hash 925954989, now seen corresponding path program 1 times [2020-11-30 01:40:10,655 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,655 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1839141769] [2020-11-30 01:40:10,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,682 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,683 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1839141769] [2020-11-30 01:40:10,683 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,683 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-11-30 01:40:10,683 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2116122716] [2020-11-30 01:40:10,684 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,684 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,685 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,685 INFO L87 Difference]: Start difference. First operand 11 states and 12 transitions. Second operand 3 states. [2020-11-30 01:40:10,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,703 INFO L93 Difference]: Finished difference Result 11 states and 12 transitions. [2020-11-30 01:40:10,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2020-11-30 01:40:10,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,704 INFO L225 Difference]: With dead ends: 11 [2020-11-30 01:40:10,704 INFO L226 Difference]: Without dead ends: 10 [2020-11-30 01:40:10,705 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 [2020-11-30 01:40:10,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states. [2020-11-30 01:40:10,707 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2020-11-30 01:40:10,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 10 states. [2020-11-30 01:40:10,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 11 transitions. [2020-11-30 01:40:10,708 INFO L78 Accepts]: Start accepts. Automaton has 10 states and 11 transitions. Word has length 6 [2020-11-30 01:40:10,708 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,708 INFO L481 AbstractCegarLoop]: Abstraction has 10 states and 11 transitions. [2020-11-30 01:40:10,708 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,709 INFO L276 IsEmpty]: Start isEmpty. Operand 10 states and 11 transitions. [2020-11-30 01:40:10,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 01:40:10,709 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:40:10,709 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 01:40:10,710 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-30 01:40:10,710 INFO L429 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 01:40:10,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:40:10,711 INFO L82 PathProgramCache]: Analyzing trace with hash -1360166356, now seen corresponding path program 1 times [2020-11-30 01:40:10,711 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:40:10,711 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776548225] [2020-11-30 01:40:10,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:40:10,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:40:10,772 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:40:10,773 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776548225] [2020-11-30 01:40:10,773 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:40:10,773 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-11-30 01:40:10,774 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056405458] [2020-11-30 01:40:10,774 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-30 01:40:10,774 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:40:10,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 01:40:10,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 01:40:10,775 INFO L87 Difference]: Start difference. First operand 10 states and 11 transitions. Second operand 3 states. [2020-11-30 01:40:10,808 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:40:10,809 INFO L93 Difference]: Finished difference Result 10 states and 11 transitions. [2020-11-30 01:40:10,809 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 01:40:10,810 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2020-11-30 01:40:10,810 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:40:10,810 INFO L225 Difference]: With dead ends: 10 [2020-11-30 01:40:10,810 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:40:10,811 INFO L677 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 [2020-11-30 01:40:10,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:40:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:40:10,811 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:40:10,812 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:40:10,812 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 7 [2020-11-30 01:40:10,812 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:40:10,812 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:40:10,812 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-30 01:40:10,812 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:40:10,813 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:40:10,813 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-30 01:40:10,815 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:40:10,857 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 01:40:10,858 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:40:10,858 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 01:40:10,858 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 01:40:10,858 INFO L274 CegarLoopResult]: For program point L27(line 27) no Hoare annotation was computed. [2020-11-30 01:40:10,858 INFO L274 CegarLoopResult]: For program point L27-1(line 27) no Hoare annotation was computed. [2020-11-30 01:40:10,859 INFO L274 CegarLoopResult]: For program point L21(lines 21 28) no Hoare annotation was computed. [2020-11-30 01:40:10,859 INFO L270 CegarLoopResult]: At program point L21-2(lines 20 29) the Hoare annotation is: (and (<= ULTIMATE.start_main_~x~0 2147483647) (<= ULTIMATE.start_main_~d~0 2147483647) (<= ULTIMATE.start_main_~y~0 2147483647)) [2020-11-30 01:40:10,859 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2020-11-30 01:40:10,859 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 26) no Hoare annotation was computed. [2020-11-30 01:40:10,860 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:40:10,860 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW(line 27) no Hoare annotation was computed. [2020-11-30 01:40:10,860 INFO L274 CegarLoopResult]: For program point L26(line 26) no Hoare annotation was computed. [2020-11-30 01:40:10,860 INFO L274 CegarLoopResult]: For program point L26-1(line 26) no Hoare annotation was computed. [2020-11-30 01:40:10,861 INFO L274 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-11-30 01:40:10,861 INFO L274 CegarLoopResult]: For program point L22-1(line 22) no Hoare annotation was computed. [2020-11-30 01:40:10,879 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:40:10 BoogieIcfgContainer [2020-11-30 01:40:10,879 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:40:10,879 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:40:10,880 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:40:10,880 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:40:10,881 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:40:09" (3/4) ... [2020-11-30 01:40:10,884 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:40:10,896 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:40:10,896 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-11-30 01:40:10,897 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:40:10,965 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_8844ff26-9121-4a6d-bf63-8fb5ff40e5f7/bin/utaipan/witness.graphml [2020-11-30 01:40:10,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:40:10,973 INFO L168 Benchmark]: Toolchain (without parser) took 1872.31 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 68.3 MB in the beginning and 89.1 MB in the end (delta: -20.9 MB). Peak memory consumption was 455.3 kB. Max. memory is 16.1 GB. [2020-11-30 01:40:10,973 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:40:10,974 INFO L168 Benchmark]: CACSL2BoogieTranslator took 222.21 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 68.3 MB in the beginning and 95.5 MB in the end (delta: -27.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 01:40:10,974 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.54 ms. Allocated memory is still 117.4 MB. Free memory was 95.5 MB in the beginning and 94.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:40:10,975 INFO L168 Benchmark]: Boogie Preprocessor took 46.64 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 93.4 MB in the end (delta: 639.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:40:10,975 INFO L168 Benchmark]: RCFGBuilder took 483.28 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 81.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 01:40:10,976 INFO L168 Benchmark]: TraceAbstraction took 980.54 ms. Allocated memory is still 117.4 MB. Free memory was 81.4 MB in the beginning and 91.2 MB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:40:10,976 INFO L168 Benchmark]: Witness Printer took 86.61 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.1 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:40:10,979 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.32 ms. Allocated memory is still 96.5 MB. Free memory is still 52.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 222.21 ms. Allocated memory was 96.5 MB in the beginning and 117.4 MB in the end (delta: 21.0 MB). Free memory was 68.3 MB in the beginning and 95.5 MB in the end (delta: -27.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 44.54 ms. Allocated memory is still 117.4 MB. Free memory was 95.5 MB in the beginning and 94.0 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 46.64 ms. Allocated memory is still 117.4 MB. Free memory was 94.0 MB in the beginning and 93.4 MB in the end (delta: 639.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 483.28 ms. Allocated memory is still 117.4 MB. Free memory was 93.4 MB in the beginning and 81.9 MB in the end (delta: 11.5 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 980.54 ms. Allocated memory is still 117.4 MB. Free memory was 81.4 MB in the beginning and 91.2 MB in the end (delta: -9.8 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 86.61 ms. Allocated memory is still 117.4 MB. Free memory was 91.2 MB in the beginning and 89.1 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: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 27]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 26]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 6 specifications checked. All of them hold - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: (x <= 2147483647 && d <= 2147483647) && y <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 57 SDtfs, 31 SDslu, 10 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 6 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 10 HoareAnnotationTreeSize, 1 FomulaSimplifications, 12 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 31 NumberOfCodeBlocks, 31 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 305 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 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...