./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version cad46833 Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c -s /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/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 de1f71b59cef21cb51f49f2fba44b6d4f888bb31 ................................................................................................................................................................................................................................ 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 0.1.24-cad4683 [2019-10-22 11:22:47,836 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:22:47,837 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:22:47,851 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:22:47,852 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:22:47,853 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:22:47,854 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:22:47,855 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:22:47,856 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:22:47,857 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:22:47,858 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:22:47,859 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:22:47,859 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:22:47,860 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:22:47,860 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:22:47,861 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:22:47,862 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:22:47,863 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:22:47,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:22:47,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:22:47,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:22:47,867 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:22:47,868 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:22:47,869 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:22:47,871 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:22:47,871 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:22:47,871 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:22:47,872 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:22:47,872 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:22:47,873 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:22:47,873 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:22:47,874 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:22:47,875 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:22:47,875 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:22:47,876 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:22:47,876 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:22:47,877 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:22:47,877 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:22:47,877 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:22:47,878 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:22:47,878 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:22:47,879 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:22:47,897 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:22:47,900 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:22:47,901 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:22:47,901 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:22:47,901 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:22:47,902 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:22:47,902 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:22:47,902 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:22:47,902 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:22:47,902 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:22:47,903 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:22:47,903 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:22:47,903 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:22:47,904 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:22:47,905 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:22:47,905 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:22:47,905 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:22:47,905 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:22:47,905 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:22:47,906 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:22:47,906 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:22:47,906 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:22:47,907 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:22:47,908 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:22:47,909 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES 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/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/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 -> de1f71b59cef21cb51f49f2fba44b6d4f888bb31 [2019-10-22 11:22:47,948 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:22:47,963 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:22:47,966 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:22:47,968 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:22:47,968 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:22:47,969 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2019-10-22 11:22:48,012 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/data/3c1727011/87403e5367b84dbb82d98999fe9beeb8/FLAGf62104e9c [2019-10-22 11:22:48,370 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:22:48,371 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/sv-benchmarks/c/termination-crafted-lit/ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2019-10-22 11:22:48,376 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/data/3c1727011/87403e5367b84dbb82d98999fe9beeb8/FLAGf62104e9c [2019-10-22 11:22:48,386 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/data/3c1727011/87403e5367b84dbb82d98999fe9beeb8 [2019-10-22 11:22:48,388 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:22:48,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:22:48,390 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:48,390 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:22:48,393 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:22:48,394 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,396 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@762f938c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48, skipping insertion in model container [2019-10-22 11:22:48,396 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,403 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:22:48,416 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:22:48,537 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:48,541 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:22:48,611 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:22:48,625 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:22:48,626 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48 WrapperNode [2019-10-22 11:22:48,626 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:22:48,626 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:48,626 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:22:48,626 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:22:48,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,640 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,657 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:22:48,658 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:22:48,658 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:22:48,658 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:22:48,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,668 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,668 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,670 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,675 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... [2019-10-22 11:22:48,677 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:22:48,677 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:22:48,677 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:22:48,677 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:22:48,682 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/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 [2019-10-22 11:22:48,740 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:22:48,741 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:22:49,006 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:22:49,006 INFO L284 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-22 11:22:49,007 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49 BoogieIcfgContainer [2019-10-22 11:22:49,007 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:22:49,008 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:22:49,008 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:22:49,010 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:22:49,010 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:22:48" (1/3) ... [2019-10-22 11:22:49,011 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577d4bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:49, skipping insertion in model container [2019-10-22 11:22:49,011 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:22:48" (2/3) ... [2019-10-22 11:22:49,012 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@577d4bfc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:22:49, skipping insertion in model container [2019-10-22 11:22:49,012 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49" (3/3) ... [2019-10-22 11:22:49,013 INFO L109 eAbstractionObserver]: Analyzing ICFG ChawdharyCookGulwaniSagivYang-ESOP2008-aaron2.c [2019-10-22 11:22:49,022 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:22:49,029 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2019-10-22 11:22:49,040 INFO L249 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2019-10-22 11:22:49,061 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:22:49,061 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:22:49,061 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:22:49,061 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:22:49,062 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:22:49,062 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:22:49,062 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:22:49,062 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:22:49,078 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2019-10-22 11:22:49,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 5 [2019-10-22 11:22:49,085 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:22:49,085 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1, 1] [2019-10-22 11:22:49,087 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:22:49,093 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:22:49,094 INFO L82 PathProgramCache]: Analyzing trace with hash 963659, now seen corresponding path program 1 times [2019-10-22 11:22:49,103 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:22:49,103 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1181106648] [2019-10-22 11:22:49,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:49,103 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:22:49,104 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:22:49,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:49,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:22:49,203 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:22:49,204 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:22:49,219 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:22:49 BoogieIcfgContainer [2019-10-22 11:22:49,219 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:22:49,220 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:22:49,220 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:22:49,220 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:22:49,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:22:49" (3/4) ... [2019-10-22 11:22:49,223 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:22:49,257 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_a5f3d97b-ad05-458a-9b97-02797c03e21d/bin/utaipan/witness.graphml [2019-10-22 11:22:49,257 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:22:49,259 INFO L168 Benchmark]: Toolchain (without parser) took 869.75 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -158.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,260 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,260 INFO L168 Benchmark]: CACSL2BoogieTranslator took 236.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,261 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,261 INFO L168 Benchmark]: Boogie Preprocessor took 19.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:22:49,261 INFO L168 Benchmark]: RCFGBuilder took 330.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,262 INFO L168 Benchmark]: TraceAbstraction took 211.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,263 INFO L168 Benchmark]: Witness Printer took 37.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:22:49,265 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 967.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 236.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.1 MB). Free memory was 944.5 MB in the beginning and 1.1 GB in the end (delta: -193.3 MB). Peak memory consumption was 23.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.16 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 330.13 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 211.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Witness Printer took 37.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 19]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int tx = __VERIFIER_nondet_int(); [L13] int x = __VERIFIER_nondet_int(); [L14] int y = __VERIFIER_nondet_int(); [L15] COND TRUE x >= y && tx >= 0 [L16] COND FALSE !(__VERIFIER_nondet_int()) [L19] y + 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 23 locations, 8 error locations. Result: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred 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: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 4 NumberOfCodeBlocks, 4 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...