./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/loops/n.c11.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loops/n.c11.c -s /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash ba63c30fcd23f432b857b2315ba9dece8a321b75 ................................................................................................................................................................................................................................................................................................................................... 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 01:46:46,827 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 01:46:46,830 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 01:46:46,891 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 01:46:46,892 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 01:46:46,893 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 01:46:46,896 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 01:46:46,899 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 01:46:46,902 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 01:46:46,903 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 01:46:46,905 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 01:46:46,907 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 01:46:46,907 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 01:46:46,909 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 01:46:46,910 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 01:46:46,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 01:46:46,914 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 01:46:46,915 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 01:46:46,918 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 01:46:46,921 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 01:46:46,923 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 01:46:46,925 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 01:46:46,927 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 01:46:46,928 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 01:46:46,932 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 01:46:46,933 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 01:46:46,933 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 01:46:46,934 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 01:46:46,935 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 01:46:46,937 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 01:46:46,937 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 01:46:46,938 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 01:46:46,939 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 01:46:46,940 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 01:46:46,942 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 01:46:46,942 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 01:46:46,944 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 01:46:46,944 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 01:46:46,945 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 01:46:46,946 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 01:46:46,947 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 01:46:46,949 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-11-30 01:46:46,984 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 01:46:46,985 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 01:46:46,986 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 01:46:46,987 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 01:46:46,987 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 01:46:46,988 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 01:46:46,989 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 01:46:46,989 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 01:46:46,996 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 01:46:46,996 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 01:46:46,997 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 01:46:46,997 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 01:46:46,998 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 01:46:46,998 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 01:46:46,999 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 01:46:47,000 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 01:46:47,000 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 01:46:47,001 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 01:46:47,001 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 01:46:47,002 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 01:46:47,002 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 01:46:47,002 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 01:46:47,003 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 01:46:47,003 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-11-30 01:46:47,004 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 01:46:47,004 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 01:46:47,005 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 01:46:47,005 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 01:46:47,006 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 01:46:47,006 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 01:46:47,006 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 01:46:47,007 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 01:46:47,007 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 01:46:47,008 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 01:46:47,008 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 01:46:47,009 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 01:46:47,009 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 01:46:47,010 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 01:46:47,010 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 01:46:47,010 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 01:46:47,011 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_4392fd38-b8c8-4da0-9241-ad590c9368ac/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> ba63c30fcd23f432b857b2315ba9dece8a321b75 [2020-11-30 01:46:47,342 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 01:46:47,372 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 01:46:47,377 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 01:46:47,379 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 01:46:47,380 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 01:46:47,381 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/../../sv-benchmarks/c/loops/n.c11.c [2020-11-30 01:46:47,460 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/data/fe85219db/db3b4a3d74804d53b56338c97a80cef6/FLAG1167d1a47 [2020-11-30 01:46:48,013 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 01:46:48,014 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/sv-benchmarks/c/loops/n.c11.c [2020-11-30 01:46:48,029 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/data/fe85219db/db3b4a3d74804d53b56338c97a80cef6/FLAG1167d1a47 [2020-11-30 01:46:48,345 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/data/fe85219db/db3b4a3d74804d53b56338c97a80cef6 [2020-11-30 01:46:48,348 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 01:46:48,350 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 01:46:48,354 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:48,354 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 01:46:48,358 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 01:46:48,359 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,362 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cda4b4c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48, skipping insertion in model container [2020-11-30 01:46:48,362 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,371 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 01:46:48,388 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 01:46:48,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:48,614 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 01:46:48,630 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 01:46:48,645 INFO L208 MainTranslator]: Completed translation [2020-11-30 01:46:48,645 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48 WrapperNode [2020-11-30 01:46:48,646 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 01:46:48,647 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:48,648 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 01:46:48,648 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 01:46:48,658 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,666 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,688 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 01:46:48,689 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 01:46:48,690 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 01:46:48,690 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 01:46:48,700 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,701 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,702 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,703 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,707 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,712 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,713 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... [2020-11-30 01:46:48,716 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 01:46:48,717 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 01:46:48,717 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 01:46:48,717 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 01:46:48,719 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/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 01:46:48,811 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 01:46:48,811 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 01:46:48,812 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 01:46:48,812 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 01:46:49,321 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 01:46:49,321 INFO L298 CfgBuilder]: Removed 9 assume(true) statements. [2020-11-30 01:46:49,324 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:49 BoogieIcfgContainer [2020-11-30 01:46:49,324 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 01:46:49,327 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 01:46:49,327 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 01:46:49,339 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 01:46:49,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 01:46:48" (1/3) ... [2020-11-30 01:46:49,340 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19399daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:49, skipping insertion in model container [2020-11-30 01:46:49,341 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 01:46:48" (2/3) ... [2020-11-30 01:46:49,341 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@19399daa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 01:46:49, skipping insertion in model container [2020-11-30 01:46:49,342 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:49" (3/3) ... [2020-11-30 01:46:49,343 INFO L111 eAbstractionObserver]: Analyzing ICFG n.c11.c [2020-11-30 01:46:49,366 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 01:46:49,374 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-11-30 01:46:49,390 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-11-30 01:46:49,419 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 01:46:49,420 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 01:46:49,420 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 01:46:49,420 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 01:46:49,421 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 01:46:49,421 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 01:46:49,421 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 01:46:49,421 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 01:46:49,443 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-11-30 01:46:49,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2020-11-30 01:46:49,452 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:49,452 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2020-11-30 01:46:49,453 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:49,458 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:49,459 INFO L82 PathProgramCache]: Analyzing trace with hash 2161130, now seen corresponding path program 1 times [2020-11-30 01:46:49,470 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:46:49,470 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [223420090] [2020-11-30 01:46:49,471 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:46:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:49,725 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 01:46:49,726 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [223420090] [2020-11-30 01:46:49,727 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 01:46:49,727 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 01:46:49,729 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1114748013] [2020-11-30 01:46:49,734 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-30 01:46:49,734 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:46:49,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-30 01:46:49,751 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-30 01:46:49,754 INFO L87 Difference]: Start difference. First operand 7 states. Second operand 4 states. [2020-11-30 01:46:49,837 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:46:49,837 INFO L93 Difference]: Finished difference Result 15 states and 16 transitions. [2020-11-30 01:46:49,838 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-30 01:46:49,840 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 4 [2020-11-30 01:46:49,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:46:49,871 INFO L225 Difference]: With dead ends: 15 [2020-11-30 01:46:49,871 INFO L226 Difference]: Without dead ends: 6 [2020-11-30 01:46:49,875 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-30 01:46:49,895 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6 states. [2020-11-30 01:46:49,910 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6 to 6. [2020-11-30 01:46:49,912 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-11-30 01:46:49,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 6 transitions. [2020-11-30 01:46:49,918 INFO L78 Accepts]: Start accepts. Automaton has 6 states and 6 transitions. Word has length 4 [2020-11-30 01:46:49,918 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:46:49,919 INFO L481 AbstractCegarLoop]: Abstraction has 6 states and 6 transitions. [2020-11-30 01:46:49,919 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-30 01:46:49,919 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states and 6 transitions. [2020-11-30 01:46:49,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2020-11-30 01:46:49,920 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 01:46:49,920 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2020-11-30 01:46:49,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 01:46:49,921 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-30 01:46:49,924 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 01:46:49,924 INFO L82 PathProgramCache]: Analyzing trace with hash 66956555, now seen corresponding path program 1 times [2020-11-30 01:46:49,924 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 01:46:49,925 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851719386] [2020-11-30 01:46:49,925 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 01:46:49,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:50,118 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:50,118 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1851719386] [2020-11-30 01:46:50,119 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1258000732] [2020-11-30 01:46:50,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2020-11-30 01:46:50,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 01:46:50,212 INFO L263 TraceCheckSpWp]: Trace formula consists of 45 conjuncts, 6 conjunts are in the unsatisfiable core [2020-11-30 01:46:50,217 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-11-30 01:46:50,323 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:50,323 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2020-11-30 01:46:50,379 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 2 conjuncts [2020-11-30 01:46:50,507 INFO L603 QuantifierPusher]: Distributing 2 disjuncts over 4 conjuncts [2020-11-30 01:46:50,676 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 01:46:50,676 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2020-11-30 01:46:50,676 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 8 [2020-11-30 01:46:50,678 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1296389324] [2020-11-30 01:46:50,678 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 01:46:50,679 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 01:46:50,680 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 01:46:50,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-11-30 01:46:50,680 INFO L87 Difference]: Start difference. First operand 6 states and 6 transitions. Second operand 5 states. [2020-11-30 01:46:50,734 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 01:46:50,734 INFO L93 Difference]: Finished difference Result 6 states and 6 transitions. [2020-11-30 01:46:50,734 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-11-30 01:46:50,734 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 5 [2020-11-30 01:46:50,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 01:46:50,735 INFO L225 Difference]: With dead ends: 6 [2020-11-30 01:46:50,735 INFO L226 Difference]: Without dead ends: 0 [2020-11-30 01:46:50,736 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 4 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-11-30 01:46:50,736 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-11-30 01:46:50,736 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-11-30 01:46:50,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-11-30 01:46:50,737 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-11-30 01:46:50,737 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 5 [2020-11-30 01:46:50,737 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 01:46:50,737 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-11-30 01:46:50,737 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 01:46:50,737 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-11-30 01:46:50,737 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-11-30 01:46:50,944 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2020-11-30 01:46:50,946 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-11-30 01:46:50,991 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-11-30 01:46:50,991 INFO L270 CegarLoopResult]: At program point L21-2(lines 21 29) the Hoare annotation is: (< (mod ULTIMATE.start_main_~len~0 4294967296) 5) [2020-11-30 01:46:50,991 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-11-30 01:46:50,992 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-11-30 01:46:50,992 INFO L274 CegarLoopResult]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 3) no Hoare annotation was computed. [2020-11-30 01:46:50,992 INFO L274 CegarLoopResult]: For program point L6(lines 6 8) no Hoare annotation was computed. [2020-11-30 01:46:50,992 INFO L270 CegarLoopResult]: At program point L6-2(lines 5 10) the Hoare annotation is: (not (= 0 ULTIMATE.start___VERIFIER_assert_~cond)) [2020-11-30 01:46:51,013 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 01:46:51 BoogieIcfgContainer [2020-11-30 01:46:51,013 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 01:46:51,022 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 01:46:51,022 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 01:46:51,022 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 01:46:51,023 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 01:46:49" (3/4) ... [2020-11-30 01:46:51,027 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-11-30 01:46:51,038 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2020-11-30 01:46:51,038 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2020-11-30 01:46:51,039 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-11-30 01:46:51,039 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-11-30 01:46:51,079 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_4392fd38-b8c8-4da0-9241-ad590c9368ac/bin/utaipan/witness.graphml [2020-11-30 01:46:51,079 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 01:46:51,081 INFO L168 Benchmark]: Toolchain (without parser) took 2730.16 ms. Allocated memory is still 134.2 MB. Free memory was 103.6 MB in the beginning and 79.8 MB in the end (delta: 23.8 MB). Peak memory consumption was 21.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,082 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:51,083 INFO L168 Benchmark]: CACSL2BoogieTranslator took 292.31 ms. Allocated memory is still 134.2 MB. Free memory was 103.6 MB in the beginning and 112.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,084 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.05 ms. Allocated memory is still 134.2 MB. Free memory was 112.0 MB in the beginning and 110.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,084 INFO L168 Benchmark]: Boogie Preprocessor took 26.70 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 109.6 MB in the end (delta: 869.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 01:46:51,085 INFO L168 Benchmark]: RCFGBuilder took 607.40 ms. Allocated memory is still 134.2 MB. Free memory was 109.6 MB in the beginning and 95.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,086 INFO L168 Benchmark]: TraceAbstraction took 1694.38 ms. Allocated memory is still 134.2 MB. Free memory was 94.6 MB in the beginning and 81.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,087 INFO L168 Benchmark]: Witness Printer took 57.80 ms. Allocated memory is still 134.2 MB. Free memory was 81.9 MB in the beginning and 79.8 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 01:46:51,091 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 88.1 MB. Free memory is still 45.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 292.31 ms. Allocated memory is still 134.2 MB. Free memory was 103.6 MB in the beginning and 112.0 MB in the end (delta: -8.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.05 ms. Allocated memory is still 134.2 MB. Free memory was 112.0 MB in the beginning and 110.5 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 26.70 ms. Allocated memory is still 134.2 MB. Free memory was 110.5 MB in the beginning and 109.6 MB in the end (delta: 869.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 607.40 ms. Allocated memory is still 134.2 MB. Free memory was 109.6 MB in the beginning and 95.0 MB in the end (delta: 14.6 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1694.38 ms. Allocated memory is still 134.2 MB. Free memory was 94.6 MB in the beginning and 81.9 MB in the end (delta: 12.7 MB). Peak memory consumption was 12.2 MB. Max. memory is 16.1 GB. * Witness Printer took 57.80 ms. Allocated memory is still 134.2 MB. Free memory was 81.9 MB in the beginning and 79.8 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: 3]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: len % 4294967296 < 5 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: !(0 == cond) - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.5s, OverallIterations: 2, TraceHistogramMax: 1, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 5 SDtfs, 7 SDslu, 7 SDs, 0 SdLazy, 11 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=7occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 2 LocationsWithAnnotation, 2 PreInvPairs, 5 NumberOfFragments, 9 HoareAnnotationTreeSize, 2 FomulaSimplifications, 19 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 14 NumberOfCodeBlocks, 14 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 15 ConstructedInterpolants, 0 QuantifiedInterpolants, 244 SizeOfPredicates, 3 NumberOfNonLiveVariables, 45 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 4 InterpolantComputations, 2 PerfectInterpolantSequences, 1/3 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...