./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 7b2dab56 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/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_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/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 0.2.0-7b2dab5 [2020-12-09 18:15:14,809 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-12-09 18:15:14,810 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-12-09 18:15:14,835 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-12-09 18:15:14,836 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-12-09 18:15:14,837 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-12-09 18:15:14,838 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-12-09 18:15:14,840 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-12-09 18:15:14,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-12-09 18:15:14,842 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-12-09 18:15:14,843 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-12-09 18:15:14,844 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-12-09 18:15:14,844 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-12-09 18:15:14,845 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-12-09 18:15:14,846 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-12-09 18:15:14,847 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-12-09 18:15:14,848 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-12-09 18:15:14,849 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-12-09 18:15:14,850 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-12-09 18:15:14,852 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-12-09 18:15:14,853 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-12-09 18:15:14,855 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-12-09 18:15:14,856 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-12-09 18:15:14,856 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-12-09 18:15:14,859 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-12-09 18:15:14,859 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-12-09 18:15:14,860 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-12-09 18:15:14,860 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-12-09 18:15:14,861 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-12-09 18:15:14,862 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-12-09 18:15:14,862 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-12-09 18:15:14,863 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-12-09 18:15:14,863 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-12-09 18:15:14,864 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-12-09 18:15:14,865 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-12-09 18:15:14,865 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-12-09 18:15:14,866 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-12-09 18:15:14,866 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-12-09 18:15:14,866 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-12-09 18:15:14,867 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-12-09 18:15:14,868 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-12-09 18:15:14,868 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-12-09 18:15:14,892 INFO L113 SettingsManager]: Loading preferences was successful [2020-12-09 18:15:14,892 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-12-09 18:15:14,893 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-12-09 18:15:14,893 INFO L138 SettingsManager]: * User list type=DISABLED [2020-12-09 18:15:14,893 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-12-09 18:15:14,893 INFO L138 SettingsManager]: * Explicit value domain=true [2020-12-09 18:15:14,893 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Octagon Domain=false [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Interval Domain=false [2020-12-09 18:15:14,894 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-12-09 18:15:14,894 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-12-09 18:15:14,895 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-12-09 18:15:14,895 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-12-09 18:15:14,895 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-12-09 18:15:14,895 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-12-09 18:15:14,895 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Use constant arrays=true [2020-12-09 18:15:14,896 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-12-09 18:15:14,896 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-12-09 18:15:14,897 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-12-09 18:15:14,897 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-12-09 18:15:14,898 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-12-09 18:15:14,898 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-12-09 18:15:14,898 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_7a2c59cd-52b5-4f57-82c1-c42dd0924032/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> d3ded6f4470c26b608997f650ebe66ef1cf6f845 [2020-12-09 18:15:15,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-12-09 18:15:15,096 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-12-09 18:15:15,098 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-12-09 18:15:15,099 INFO L271 PluginConnector]: Initializing CDTParser... [2020-12-09 18:15:15,099 INFO L275 PluginConnector]: CDTParser initialized [2020-12-09 18:15:15,100 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-09 18:15:15,148 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/data/f7a8a1031/8ec14c869be54a37a01340b181073f45/FLAG40762d916 [2020-12-09 18:15:15,523 INFO L306 CDTParser]: Found 1 translation units. [2020-12-09 18:15:15,523 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/sv-benchmarks/c/termination-crafted-lit/LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-09 18:15:15,528 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/data/f7a8a1031/8ec14c869be54a37a01340b181073f45/FLAG40762d916 [2020-12-09 18:15:15,539 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/data/f7a8a1031/8ec14c869be54a37a01340b181073f45 [2020-12-09 18:15:15,542 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-12-09 18:15:15,543 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-12-09 18:15:15,544 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-12-09 18:15:15,545 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-12-09 18:15:15,547 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-12-09 18:15:15,548 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,549 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63c6045a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15, skipping insertion in model container [2020-12-09 18:15:15,549 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,554 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-12-09 18:15:15,565 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-12-09 18:15:15,671 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:15:15,674 INFO L203 MainTranslator]: Completed pre-run [2020-12-09 18:15:15,683 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-12-09 18:15:15,692 INFO L208 MainTranslator]: Completed translation [2020-12-09 18:15:15,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15 WrapperNode [2020-12-09 18:15:15,692 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-12-09 18:15:15,693 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-12-09 18:15:15,693 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-12-09 18:15:15,693 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-12-09 18:15:15,699 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,702 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,713 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-12-09 18:15:15,713 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-12-09 18:15:15,713 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-12-09 18:15:15,713 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-12-09 18:15:15,719 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,719 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,720 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,720 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,721 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,723 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,723 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... [2020-12-09 18:15:15,724 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-12-09 18:15:15,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-12-09 18:15:15,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-12-09 18:15:15,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-12-09 18:15:15,726 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/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 18:15:15,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-12-09 18:15:15,777 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-12-09 18:15:15,778 INFO L130 BoogieDeclarations]: Found specification of procedure r1 [2020-12-09 18:15:15,778 INFO L138 BoogieDeclarations]: Found implementation of procedure r1 [2020-12-09 18:15:15,910 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-12-09 18:15:15,910 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2020-12-09 18:15:15,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:15:15 BoogieIcfgContainer [2020-12-09 18:15:15,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-12-09 18:15:15,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-12-09 18:15:15,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-12-09 18:15:15,915 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-12-09 18:15:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 06:15:15" (1/3) ... [2020-12-09 18:15:15,916 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db767eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:15:15, skipping insertion in model container [2020-12-09 18:15:15,916 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 06:15:15" (2/3) ... [2020-12-09 18:15:15,917 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7db767eb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 06:15:15, skipping insertion in model container [2020-12-09 18:15:15,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:15:15" (3/3) ... [2020-12-09 18:15:15,918 INFO L111 eAbstractionObserver]: Analyzing ICFG LeeJonesBen-Amram-POPL2001-Ex1.c [2020-12-09 18:15:15,927 INFO L180 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-12-09 18:15:15,929 INFO L192 ceAbstractionStarter]: Appying trace abstraction to program that has 6 error locations. [2020-12-09 18:15:15,937 INFO L253 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2020-12-09 18:15:15,955 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-12-09 18:15:15,955 INFO L378 AbstractCegarLoop]: Hoare is true [2020-12-09 18:15:15,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-12-09 18:15:15,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-12-09 18:15:15,955 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-12-09 18:15:15,955 INFO L382 AbstractCegarLoop]: Difference is false [2020-12-09 18:15:15,955 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-12-09 18:15:15,955 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-12-09 18:15:15,967 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2020-12-09 18:15:15,975 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-12-09 18:15:15,975 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:15:15,976 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-12-09 18:15:15,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 18:15:15,980 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:15:15,980 INFO L82 PathProgramCache]: Analyzing trace with hash 920915409, now seen corresponding path program 1 times [2020-12-09 18:15:15,987 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:15:15,988 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [315370438] [2020-12-09 18:15:15,988 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:15:16,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:15:16,131 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 18:15:16,132 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [315370438] [2020-12-09 18:15:16,133 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:15:16,133 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:15:16,134 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [747500585] [2020-12-09 18:15:16,138 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-12-09 18:15:16,138 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:15:16,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-12-09 18:15:16,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2020-12-09 18:15:16,153 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 6 states. [2020-12-09 18:15:16,235 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:15:16,235 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2020-12-09 18:15:16,236 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:15:16,237 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 6 [2020-12-09 18:15:16,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:15:16,242 INFO L225 Difference]: With dead ends: 26 [2020-12-09 18:15:16,242 INFO L226 Difference]: Without dead ends: 17 [2020-12-09 18:15:16,244 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-12-09 18:15:16,255 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2020-12-09 18:15:16,265 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2020-12-09 18:15:16,265 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2020-12-09 18:15:16,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 17 transitions. [2020-12-09 18:15:16,267 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 17 transitions. Word has length 6 [2020-12-09 18:15:16,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:15:16,267 INFO L481 AbstractCegarLoop]: Abstraction has 17 states and 17 transitions. [2020-12-09 18:15:16,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-12-09 18:15:16,267 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 17 transitions. [2020-12-09 18:15:16,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2020-12-09 18:15:16,268 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:15:16,268 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:15:16,268 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-12-09 18:15:16,268 INFO L429 AbstractCegarLoop]: === Iteration 2 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 18:15:16,269 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:15:16,269 INFO L82 PathProgramCache]: Analyzing trace with hash -1516393339, now seen corresponding path program 1 times [2020-12-09 18:15:16,269 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:15:16,269 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1690307852] [2020-12-09 18:15:16,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:15:16,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-12-09 18:15:16,293 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 18:15:16,293 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1690307852] [2020-12-09 18:15:16,293 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-12-09 18:15:16,293 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-12-09 18:15:16,293 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1965016213] [2020-12-09 18:15:16,294 INFO L461 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-12-09 18:15:16,294 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy SIFA_TAIPAN [2020-12-09 18:15:16,295 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-12-09 18:15:16,295 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2020-12-09 18:15:16,295 INFO L87 Difference]: Start difference. First operand 17 states and 17 transitions. Second operand 5 states. [2020-12-09 18:15:16,341 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-12-09 18:15:16,341 INFO L93 Difference]: Finished difference Result 31 states and 31 transitions. [2020-12-09 18:15:16,342 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-12-09 18:15:16,342 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2020-12-09 18:15:16,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-12-09 18:15:16,343 INFO L225 Difference]: With dead ends: 31 [2020-12-09 18:15:16,343 INFO L226 Difference]: Without dead ends: 29 [2020-12-09 18:15:16,344 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 [2020-12-09 18:15:16,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2020-12-09 18:15:16,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 23. [2020-12-09 18:15:16,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2020-12-09 18:15:16,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2020-12-09 18:15:16,350 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 7 [2020-12-09 18:15:16,350 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-12-09 18:15:16,351 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2020-12-09 18:15:16,351 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-12-09 18:15:16,351 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2020-12-09 18:15:16,351 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-12-09 18:15:16,351 INFO L414 BasicCegarLoop]: Found error trace [2020-12-09 18:15:16,351 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-12-09 18:15:16,352 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-12-09 18:15:16,352 INFO L429 AbstractCegarLoop]: === Iteration 3 === [r1Err3ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err2ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err4ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, r1Err5ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-12-09 18:15:16,353 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-12-09 18:15:16,353 INFO L82 PathProgramCache]: Analyzing trace with hash 236446803, now seen corresponding path program 1 times [2020-12-09 18:15:16,353 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-12-09 18:15:16,353 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1272153638] [2020-12-09 18:15:16,353 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-12-09 18:15:16,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:15:16,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:15:16,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-12-09 18:15:16,371 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-12-09 18:15:16,385 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-12-09 18:15:16,385 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-12-09 18:15:16,385 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-12-09 18:15:16,399 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 06:15:16 BoogieIcfgContainer [2020-12-09 18:15:16,399 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-12-09 18:15:16,400 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-12-09 18:15:16,400 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-12-09 18:15:16,400 INFO L275 PluginConnector]: Witness Printer initialized [2020-12-09 18:15:16,400 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 06:15:15" (3/4) ... [2020-12-09 18:15:16,401 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-12-09 18:15:16,422 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_7a2c59cd-52b5-4f57-82c1-c42dd0924032/bin/utaipan/witness.graphml [2020-12-09 18:15:16,423 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-12-09 18:15:16,424 INFO L168 Benchmark]: Toolchain (without parser) took 880.40 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 57.8 MB in the beginning and 75.2 MB in the end (delta: -17.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 16.1 GB. [2020-12-09 18:15:16,424 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 88.1 MB. Free memory was 46.0 MB in the beginning and 46.0 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:15:16,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 147.98 ms. Allocated memory is still 88.1 MB. Free memory was 57.6 MB in the beginning and 63.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-12-09 18:15:16,425 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.86 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 62.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:15:16,426 INFO L168 Benchmark]: Boogie Preprocessor took 11.05 ms. Allocated memory is still 88.1 MB. Free memory was 62.4 MB in the beginning and 61.8 MB in the end (delta: 634.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:15:16,426 INFO L168 Benchmark]: RCFGBuilder took 186.96 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 49.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2020-12-09 18:15:16,427 INFO L168 Benchmark]: TraceAbstraction took 486.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.6 MB in the beginning and 76.9 MB in the end (delta: -27.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-12-09 18:15:16,427 INFO L168 Benchmark]: Witness Printer took 23.12 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 75.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-12-09 18:15:16,429 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 88.1 MB. Free memory was 46.0 MB in the beginning and 46.0 MB in the end (delta: 71.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 147.98 ms. Allocated memory is still 88.1 MB. Free memory was 57.6 MB in the beginning and 63.9 MB in the end (delta: -6.3 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 19.86 ms. Allocated memory is still 88.1 MB. Free memory was 63.9 MB in the beginning and 62.4 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 11.05 ms. Allocated memory is still 88.1 MB. Free memory was 62.4 MB in the beginning and 61.8 MB in the end (delta: 634.5 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 186.96 ms. Allocated memory is still 88.1 MB. Free memory was 61.5 MB in the beginning and 49.9 MB in the end (delta: 11.6 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * TraceAbstraction took 486.29 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 49.6 MB in the beginning and 76.9 MB in the end (delta: -27.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 23.12 ms. Allocated memory is still 107.0 MB. Free memory was 76.9 MB in the beginning and 75.2 MB in the end (delta: 1.7 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: 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: 0.4s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 0.1s, 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, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s 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, 0.0s 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...