./Ultimate.py --spec ../../sv-benchmarks/c/properties/unreach-call.prp --file ../../sv-benchmarks/c/recursive/Addition02.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition02.c -s /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/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 9c0bb97f0ddc8ff8c6b996d7f7598b56ed37dc2a ............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.2.0-7b2dab5 [2020-12-09 07:19:40,773 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 07:19:40,774 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 07:19:40,802 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 07:19:40,803 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 07:19:40,804 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 07:19:40,805 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 07:19:40,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 07:19:40,808 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 07:19:40,809 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 07:19:40,810 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 07:19:40,811 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 07:19:40,811 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 07:19:40,812 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 07:19:40,813 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 07:19:40,814 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 07:19:40,814 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 07:19:40,815 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 07:19:40,816 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 07:19:40,818 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 07:19:40,820 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 07:19:40,821 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 07:19:40,822 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 07:19:40,822 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 07:19:40,825 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 07:19:40,825 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 07:19:40,825 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 07:19:40,826 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 07:19:40,827 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 07:19:40,828 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 07:19:40,828 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 07:19:40,829 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 07:19:40,829 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 07:19:40,830 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 07:19:40,831 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 07:19:40,831 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 07:19:40,832 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 07:19:40,832 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 07:19:40,832 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 07:19:40,833 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 07:19:40,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 07:19:40,834 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2020-12-09 07:19:40,855 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 07:19:40,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 07:19:40,856 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 07:19:40,856 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 07:19:40,857 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 07:19:40,857 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 07:19:40,858 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 07:19:40,858 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 07:19:40,858 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 07:19:40,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2020-12-09 07:19:40,859 INFO L138 SettingsManager]: * sizeof long double=12 [2020-12-09 07:19:40,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 07:19:40,860 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 07:19:40,860 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 07:19:40,860 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 07:19:40,860 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 07:19:40,860 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 07:19:40,860 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 07:19:40,861 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 07:19:40,862 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 07:19:40,862 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_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9c0bb97f0ddc8ff8c6b996d7f7598b56ed37dc2a [2020-12-09 07:19:41,042 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 07:19:41,063 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 07:19:41,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 07:19:41,067 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 07:19:41,067 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 07:19:41,068 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/../../sv-benchmarks/c/recursive/Addition02.c [2020-12-09 07:19:41,110 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/data/15e39e410/e59db5480c52456a8c14695e3f825f60/FLAGa2b704563 [2020-12-09 07:19:41,503 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 07:19:41,504 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/sv-benchmarks/c/recursive/Addition02.c [2020-12-09 07:19:41,508 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/data/15e39e410/e59db5480c52456a8c14695e3f825f60/FLAGa2b704563 [2020-12-09 07:19:41,517 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/data/15e39e410/e59db5480c52456a8c14695e3f825f60 [2020-12-09 07:19:41,519 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 07:19:41,520 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 07:19:41,521 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:41,521 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 07:19:41,524 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 07:19:41,524 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,525 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19248540 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41, skipping insertion in model container [2020-12-09 07:19:41,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 07:19:41,546 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 07:19:41,662 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2020-12-09 07:19:41,664 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:41,672 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 07:19:41,684 WARN L226 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/sv-benchmarks/c/recursive/Addition02.c[1124,1137] [2020-12-09 07:19:41,684 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 07:19:41,693 INFO L208 MainTranslator]: Completed translation [2020-12-09 07:19:41,694 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41 WrapperNode [2020-12-09 07:19:41,694 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 07:19:41,694 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:41,695 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 07:19:41,695 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 07:19:41,700 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,705 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,716 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 07:19:41,717 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 07:19:41,717 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 07:19:41,717 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 07:19:41,723 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,723 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,724 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,724 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,727 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,730 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,731 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... [2020-12-09 07:19:41,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 07:19:41,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 07:19:41,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 07:19:41,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 07:19:41,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/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 [2020-12-09 07:19:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 07:19:41,797 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 07:19:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-12-09 07:19:41,797 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-12-09 07:19:41,798 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-12-09 07:19:41,798 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-12-09 07:19:41,952 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 07:19:41,952 INFO L299 CfgBuilder]: Removed 4 assume(true) statements. [2020-12-09 07:19:41,958 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:41 BoogieIcfgContainer [2020-12-09 07:19:41,958 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 07:19:41,959 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 07:19:41,959 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 07:19:41,961 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 07:19:41,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 07:19:41" (1/3) ... [2020-12-09 07:19:41,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66749b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:41, skipping insertion in model container [2020-12-09 07:19:41,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 07:19:41" (2/3) ... [2020-12-09 07:19:41,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@66749b55 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 07:19:41, skipping insertion in model container [2020-12-09 07:19:41,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:41" (3/3) ... [2020-12-09 07:19:41,964 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02.c [2020-12-09 07:19:41,982 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 07:19:41,985 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-12-09 07:19:41,995 INFO L253 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-12-09 07:19:42,015 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 07:19:42,015 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 07:19:42,015 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 07:19:42,015 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 07:19:42,015 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 07:19:42,016 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 07:19:42,016 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 07:19:42,016 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 07:19:42,025 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-12-09 07:19:42,029 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-12-09 07:19:42,029 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:42,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:42,030 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:42,033 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:42,034 INFO L82 PathProgramCache]: Analyzing trace with hash 731430453, now seen corresponding path program 1 times [2020-12-09 07:19:42,040 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:19:42,041 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926535216] [2020-12-09 07:19:42,041 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:19:42,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:19:42,232 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:19:42,233 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926535216] [2020-12-09 07:19:42,233 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:19:42,233 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-12-09 07:19:42,234 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1699789050] [2020-12-09 07:19:42,237 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 07:19:42,237 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:19:42,246 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 07:19:42,246 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 07:19:42,248 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 6 states. [2020-12-09 07:19:42,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:19:42,361 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2020-12-09 07:19:42,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 07:19:42,362 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2020-12-09 07:19:42,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:19:42,368 INFO L225 Difference]: With dead ends: 30 [2020-12-09 07:19:42,368 INFO L226 Difference]: Without dead ends: 20 [2020-12-09 07:19:42,370 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-12-09 07:19:42,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2020-12-09 07:19:42,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2020-12-09 07:19:42,396 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2020-12-09 07:19:42,397 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2020-12-09 07:19:42,398 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2020-12-09 07:19:42,398 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:19:42,398 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2020-12-09 07:19:42,398 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 07:19:42,398 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2020-12-09 07:19:42,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-12-09 07:19:42,399 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:42,400 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:42,400 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 07:19:42,400 INFO L429 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:42,400 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:42,401 INFO L82 PathProgramCache]: Analyzing trace with hash -1703056242, now seen corresponding path program 1 times [2020-12-09 07:19:42,401 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:19:42,401 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631725393] [2020-12-09 07:19:42,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:19:42,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 07:19:42,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-12-09 07:19:42,462 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631725393] [2020-12-09 07:19:42,462 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 07:19:42,462 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-12-09 07:19:42,462 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [971836629] [2020-12-09 07:19:42,463 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-12-09 07:19:42,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 07:19:42,464 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-12-09 07:19:42,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 07:19:42,465 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 7 states. [2020-12-09 07:19:42,519 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 07:19:42,519 INFO L93 Difference]: Finished difference Result 31 states and 39 transitions. [2020-12-09 07:19:42,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 07:19:42,520 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2020-12-09 07:19:42,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 07:19:42,520 INFO L225 Difference]: With dead ends: 31 [2020-12-09 07:19:42,521 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 07:19:42,522 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-12-09 07:19:42,522 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 07:19:42,525 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-09 07:19:42,525 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 07:19:42,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 18 transitions. [2020-12-09 07:19:42,526 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 18 transitions. Word has length 13 [2020-12-09 07:19:42,527 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 07:19:42,527 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 18 transitions. [2020-12-09 07:19:42,527 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-12-09 07:19:42,527 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 18 transitions. [2020-12-09 07:19:42,528 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2020-12-09 07:19:42,528 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 07:19:42,528 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 07:19:42,528 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 07:19:42,528 INFO L429 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-12-09 07:19:42,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 07:19:42,529 INFO L82 PathProgramCache]: Analyzing trace with hash 280210265, now seen corresponding path program 1 times [2020-12-09 07:19:42,530 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 07:19:42,530 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [132907964] [2020-12-09 07:19:42,530 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 07:19:42,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:19:42,554 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:19:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 07:19:42,579 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 07:19:42,600 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 07:19:42,601 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 07:19:42,601 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 07:19:42,624 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 07:19:42 BoogieIcfgContainer [2020-12-09 07:19:42,624 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 07:19:42,624 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 07:19:42,625 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 07:19:42,625 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 07:19:42,625 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 07:19:41" (3/4) ... [2020-12-09 07:19:42,627 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 07:19:42,659 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_081b6f79-e818-4ea3-8caa-13c8cdca8fcb/bin/utaipan/witness.graphml [2020-12-09 07:19:42,659 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 07:19:42,660 INFO L168 Benchmark]: Toolchain (without parser) took 1139.58 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 53.5 MB in the beginning and 88.2 MB in the end (delta: -34.7 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:19:42,661 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:19:42,661 INFO L168 Benchmark]: CACSL2BoogieTranslator took 172.79 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 68.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:42,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.72 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 66.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 07:19:42,662 INFO L168 Benchmark]: Boogie Preprocessor took 15.97 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 65.8 MB in the end (delta: 864.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:42,662 INFO L168 Benchmark]: RCFGBuilder took 224.27 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 71.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:42,663 INFO L168 Benchmark]: TraceAbstraction took 665.25 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 70.6 MB in the beginning and 90.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:42,663 INFO L168 Benchmark]: Witness Printer took 34.70 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 88.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 07:19:42,666 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 92.3 MB. Free memory is still 69.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 172.79 ms. Allocated memory is still 92.3 MB. Free memory was 53.3 MB in the beginning and 68.0 MB in the end (delta: -14.6 MB). Peak memory consumption was 11.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 21.72 ms. Allocated memory is still 92.3 MB. Free memory was 68.0 MB in the beginning and 66.7 MB in the end (delta: 1.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 15.97 ms. Allocated memory is still 92.3 MB. Free memory was 66.7 MB in the beginning and 65.8 MB in the end (delta: 864.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 224.27 ms. Allocated memory is still 92.3 MB. Free memory was 65.8 MB in the beginning and 71.0 MB in the end (delta: -5.2 MB). Peak memory consumption was 18.9 MB. Max. memory is 16.1 GB. * TraceAbstraction took 665.25 ms. Allocated memory was 92.3 MB in the beginning and 115.3 MB in the end (delta: 23.1 MB). Free memory was 70.6 MB in the beginning and 90.3 MB in the end (delta: -19.7 MB). Peak memory consumption was 32.6 MB. Max. memory is 16.1 GB. * Witness Printer took 34.70 ms. Allocated memory is still 115.3 MB. Free memory was 90.3 MB in the beginning and 88.2 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: - CounterExampleResult [Line: 45]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m < 0 || m > 1073741823) [L35] int n = __VERIFIER_nondet_int(); [L36] COND FALSE !(n < 0 || n > 1073741823) [L41] CALL, EXPR addition(m,n) VAL [\old(m)=0, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=0, \old(n)=1, m=0, n=1] [L20] CALL, EXPR addition(m+1, n-1) VAL [\old(m)=1, \old(n)=0] [L16] COND TRUE n == 0 [L17] return m; VAL [\old(m)=1, \old(n)=0, \result=1, m=1, n=0] [L20] RET, EXPR addition(m+1, n-1) VAL [\old(m)=0, \old(n)=1, addition(m+1, n-1)=1, m=0, n=1] [L20] return addition(m+1, n-1); [L41] RET, EXPR addition(m,n) [L41] int result = addition(m,n); [L42] COND FALSE !(result == m - n) [L45] reach_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.5s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 30 SDtfs, 29 SDslu, 62 SDs, 0 SdLazy, 126 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 18 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred 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: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 42 NumberOfCodeBlocks, 42 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 1202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...