./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.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_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/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 d3ded6f4470c26b608997f650ebe66ef1cf6f845 ............................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:01:10,767 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:01:10,785 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:01:10,829 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:01:10,830 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:01:10,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:01:10,834 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:01:10,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:01:10,840 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:01:10,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:01:10,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:01:10,845 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:01:10,846 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:01:10,848 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:01:10,850 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:01:10,851 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:01:10,853 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:01:10,854 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:01:10,857 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:01:10,861 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:01:10,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:01:10,866 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:01:10,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:01:10,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:01:10,874 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:01:10,875 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:01:10,875 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:01:10,877 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:01:10,878 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:01:10,879 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:01:10,880 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:01:10,881 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:01:10,882 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:01:10,883 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:01:10,885 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:01:10,885 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:01:10,886 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:01:10,887 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:01:10,887 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:01:10,889 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:01:10,890 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:01:10,891 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-30 02:01:10,923 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:01:10,924 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:01:10,925 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:01:10,926 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:01:10,926 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:01:10,927 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:01:10,927 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:01:10,928 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:01:10,928 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:01:10,929 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:01:10,929 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:01:10,929 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:01:10,930 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:01:10,930 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:01:10,930 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:01:10,931 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:01:10,932 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:01:10,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:01:10,932 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:01:10,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:01:10,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:01:10,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:01:10,933 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:01:10,934 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:01:10,934 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:01:10,934 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:01:10,935 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:01:10,935 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:01:10,935 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:01:10,936 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:01:10,936 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:01:10,936 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:01:10,937 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:01:10,937 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:01:10,937 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:01:10,937 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:01:10,938 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:01:10,938 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:01:10,938 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_064ab822-6489-4a88-8fff-885dcef17e93/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2020-11-30 02:01:11,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:01:11,271 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:01:11,274 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:01:11,276 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:01:11,277 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:01:11,279 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-11-30 02:01:11,369 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/data/d61843ab5/9cec3090346d4f5abfbf0d9f8935d8ab/FLAGf5e83fc6d [2020-11-30 02:01:11,926 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:01:11,927 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-11-30 02:01:11,937 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/data/d61843ab5/9cec3090346d4f5abfbf0d9f8935d8ab/FLAGf5e83fc6d [2020-11-30 02:01:12,294 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/data/d61843ab5/9cec3090346d4f5abfbf0d9f8935d8ab [2020-11-30 02:01:12,299 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:01:12,301 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:01:12,318 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:12,318 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:01:12,322 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:01:12,328 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,331 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@27f68dfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12, skipping insertion in model container [2020-11-30 02:01:12,331 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,340 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:01:12,367 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:01:12,524 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:12,565 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:01:12,588 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:01:12,613 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:01:12,616 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12 WrapperNode [2020-11-30 02:01:12,616 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:01:12,617 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:12,618 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:01:12,618 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:01:12,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,639 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,664 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:01:12,666 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:01:12,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:01:12,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:01:12,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,679 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,683 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,687 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,692 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... [2020-11-30 02:01:12,695 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:01:12,697 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:01:12,697 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:01:12,697 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:01:12,699 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/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 02:01:12,802 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:01:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:01:12,803 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2020-11-30 02:01:12,803 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2020-11-30 02:01:13,269 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:01:13,269 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:01:13,272 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:13 BoogieIcfgContainer [2020-11-30 02:01:13,272 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:01:13,274 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:01:13,274 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:01:13,281 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:01:13,282 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:01:12" (1/3) ... [2020-11-30 02:01:13,282 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c701efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:13, skipping insertion in model container [2020-11-30 02:01:13,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:01:12" (2/3) ... [2020-11-30 02:01:13,283 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c701efa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:01:13, skipping insertion in model container [2020-11-30 02:01:13,283 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:13" (3/3) ... [2020-11-30 02:01:13,286 INFO L111 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex1.c [2020-11-30 02:01:13,298 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:01:13,301 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-11-30 02:01:13,316 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-11-30 02:01:13,349 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:01:13,349 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:01:13,349 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:01:13,350 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:01:13,350 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:01:13,350 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:01:13,350 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:01:13,350 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:01:13,371 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-11-30 02:01:13,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:01:13,378 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:13,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:01:13,380 INFO L429 AbstractCegarLoop]: === Iteration 1 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:13,387 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:13,387 INFO L82 PathProgramCache]: Analyzing trace with hash 920915409, now seen corresponding path program 1 times [2020-11-30 02:01:13,399 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:13,400 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1636279040] [2020-11-30 02:01:13,400 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:13,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:13,692 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 02:01:13,693 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1636279040] [2020-11-30 02:01:13,694 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:13,695 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 02:01:13,695 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140621928] [2020-11-30 02:01:13,703 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-30 02:01:13,704 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:13,728 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-30 02:01:13,730 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:01:13,732 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-11-30 02:01:13,977 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:13,977 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-11-30 02:01:13,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:01:13,980 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-11-30 02:01:13,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:14,004 INFO L225 Difference]: With dead ends: 26 [2020-11-30 02:01:14,007 INFO L226 Difference]: Without dead ends: 17 [2020-11-30 02:01:14,012 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-11-30 02:01:14,042 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-11-30 02:01:14,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-11-30 02:01:14,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-11-30 02:01:14,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-11-30 02:01:14,072 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2020-11-30 02:01:14,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:14,072 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-11-30 02:01:14,073 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-30 02:01:14,073 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-11-30 02:01:14,073 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-11-30 02:01:14,074 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:14,075 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:14,076 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:01:14,077 INFO L429 AbstractCegarLoop]: === Iteration 2 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:14,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:14,084 INFO L82 PathProgramCache]: Analyzing trace with hash -1516393339, now seen corresponding path program 1 times [2020-11-30 02:01:14,084 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:14,085 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2069017411] [2020-11-30 02:01:14,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:14,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 02:01:14,150 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 02:01:14,150 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2069017411] [2020-11-30 02:01:14,150 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 02:01:14,151 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-30 02:01:14,151 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120636471] [2020-11-30 02:01:14,152 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-11-30 02:01:14,153 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-11-30 02:01:14,154 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-11-30 02:01:14,154 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-11-30 02:01:14,155 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-11-30 02:01:14,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 02:01:14,300 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-11-30 02:01:14,301 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-11-30 02:01:14,301 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-11-30 02:01:14,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-30 02:01:14,302 INFO L225 Difference]: With dead ends: 31 [2020-11-30 02:01:14,303 INFO L226 Difference]: Without dead ends: 29 [2020-11-30 02:01:14,304 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-30 02:01:14,305 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-11-30 02:01:14,310 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-11-30 02:01:14,310 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-11-30 02:01:14,311 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-11-30 02:01:14,312 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2020-11-30 02:01:14,312 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-30 02:01:14,312 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-11-30 02:01:14,312 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-11-30 02:01:14,313 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-11-30 02:01:14,313 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-30 02:01:14,313 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:01:14,313 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 02:01:14,314 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-30 02:01:14,314 INFO L429 AbstractCegarLoop]: === Iteration 3 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:01:14,315 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:01:14,315 INFO L82 PathProgramCache]: Analyzing trace with hash 236446803, now seen corresponding path program 1 times [2020-11-30 02:01:14,315 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:01:14,316 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [765373625] [2020-11-30 02:01:14,316 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:01:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:01:14,328 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:01:14,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:01:14,339 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:01:14,357 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:01:14,357 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:01:14,358 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-30 02:01:14,381 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:01:14 BoogieIcfgContainer [2020-11-30 02:01:14,389 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:01:14,390 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:01:14,390 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:01:14,391 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:01:14,391 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:01:13" (3/4) ... [2020-11-30 02:01:14,393 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:01:14,433 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_064ab822-6489-4a88-8fff-885dcef17e93/bin/utaipan/witness.graphml [2020-11-30 02:01:14,433 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:01:14,435 INFO L168 Benchmark]: Toolchain (without parser) took 2132.73 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 59.0 MB in the beginning and 86.4 MB in the end (delta: -27.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:14,437 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 46.1 MB in the beginning and 46.1 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:14,438 INFO L168 Benchmark]: CACSL2BoogieTranslator took 298.71 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 67.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:14,439 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.93 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:14,439 INFO L168 Benchmark]: Boogie Preprocessor took 29.81 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 65.8 MB in the end (delta: 644.4 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:14,441 INFO L168 Benchmark]: RCFGBuilder took 574.88 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 54.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:14,442 INFO L168 Benchmark]: TraceAbstraction took 1115.83 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 87.3 MB in the end (delta: -33.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. [2020-11-30 02:01:14,443 INFO L168 Benchmark]: Witness Printer took 42.81 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 86.4 MB in the end (delta: 913.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:01:14,450 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 90.2 MB. Free memory was 46.1 MB in the beginning and 46.1 MB in the end (delta: 44.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 298.71 ms. Allocated memory is still 90.2 MB. Free memory was 58.8 MB in the beginning and 67.8 MB in the end (delta: -9.0 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 46.93 ms. Allocated memory is still 90.2 MB. Free memory was 67.8 MB in the beginning and 66.4 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.81 ms. Allocated memory is still 90.2 MB. Free memory was 66.4 MB in the beginning and 65.8 MB in the end (delta: 644.4 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 574.88 ms. Allocated memory is still 90.2 MB. Free memory was 65.8 MB in the beginning and 54.4 MB in the end (delta: 11.3 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * TraceAbstraction took 1115.83 ms. Allocated memory was 90.2 MB in the beginning and 109.1 MB in the end (delta: 18.9 MB). Free memory was 53.8 MB in the beginning and 87.3 MB in the end (delta: -33.5 MB). Peak memory consumption was 19.2 MB. Max. memory is 16.1 GB. * Witness Printer took 42.81 ms. Allocated memory is still 109.1 MB. Free memory was 87.3 MB in the beginning and 86.4 MB in the end (delta: 913.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 17]: integer overflow possible integer overflow possible We found a FailurePath: [L26] int ls = __VERIFIER_nondet_int(); [L27] COND TRUE ls >= 0 [L22] CALL r1(ls,0) VAL [\old(a)=0, \old(ls)=2147483647] [L14] COND FALSE !(ls == 0) VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls-1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] [L17] ls+1 VAL [\old(a)=0, \old(ls)=2147483647, a=0, ls=2147483647] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 24 locations, 6 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1.0s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 14 SDtfs, 55 SDslu, 38 SDs, 0 SdLazy, 96 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=24occurred 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, 6 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 21 NumberOfCodeBlocks, 21 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 11 ConstructedInterpolants, 0 QuantifiedInterpolants, 171 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...