./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-numeric/Addition01-1.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_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-numeric/Addition01-1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/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 77c8fe0b95e705873fd59ebc5d8426a96991d038 ..................................................................................................................................................................................................................................................... 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 [2020-11-22 13:08:16,523 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-22 13:08:16,526 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-22 13:08:16,567 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-22 13:08:16,568 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-22 13:08:16,570 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-22 13:08:16,572 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-22 13:08:16,574 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-22 13:08:16,577 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-22 13:08:16,578 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-22 13:08:16,579 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-22 13:08:16,581 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-22 13:08:16,581 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-22 13:08:16,583 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-22 13:08:16,597 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-22 13:08:16,606 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-22 13:08:16,607 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-22 13:08:16,608 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-22 13:08:16,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-22 13:08:16,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-22 13:08:16,622 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-22 13:08:16,630 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-22 13:08:16,632 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-22 13:08:16,633 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-22 13:08:16,641 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-22 13:08:16,641 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-22 13:08:16,641 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-22 13:08:16,643 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-22 13:08:16,643 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-22 13:08:16,647 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-22 13:08:16,647 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-22 13:08:16,648 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-22 13:08:16,651 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-22 13:08:16,652 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-22 13:08:16,653 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-22 13:08:16,654 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-22 13:08:16,654 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-22 13:08:16,655 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-22 13:08:16,655 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-22 13:08:16,656 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-22 13:08:16,657 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-22 13:08:16,660 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2020-11-22 13:08:16,700 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-22 13:08:16,701 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-22 13:08:16,702 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-22 13:08:16,702 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-22 13:08:16,703 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-22 13:08:16,703 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-22 13:08:16,703 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-22 13:08:16,703 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-22 13:08:16,703 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-22 13:08:16,704 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-22 13:08:16,704 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-22 13:08:16,708 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-22 13:08:16,709 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-22 13:08:16,709 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-22 13:08:16,709 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-22 13:08:16,711 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-22 13:08:16,711 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-22 13:08:16,712 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-22 13:08:16,712 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-22 13:08:16,713 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-22 13:08:16,714 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-22 13:08:16,719 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-22 13:08:16,720 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-22 13:08:16,720 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-22 13:08:16,721 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-22 13:08:16,721 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-22 13:08:16,724 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-22 13:08:16,724 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-22 13:08:16,724 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-22 13:08:16,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-22 13:08:16,727 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-22 13:08:16,727 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-22 13:08:16,727 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-22 13:08:16,727 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-22 13:08:16,728 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-22 13:08:16,728 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-22 13:08:16,728 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-22 13:08:16,728 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-22 13:08:16,729 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_224b183b-6e15-431b-9bde-56e2f841553a/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 77c8fe0b95e705873fd59ebc5d8426a96991d038 [2020-11-22 13:08:17,072 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-22 13:08:17,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-22 13:08:17,112 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-22 13:08:17,115 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-22 13:08:17,116 INFO L275 PluginConnector]: CDTParser initialized [2020-11-22 13:08:17,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/../../sv-benchmarks/c/termination-numeric/Addition01-1.c [2020-11-22 13:08:17,220 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/data/9aec98f5b/a09fb8655bd648a0a8570add09854fd4/FLAGe435f921e [2020-11-22 13:08:17,692 INFO L306 CDTParser]: Found 1 translation units. [2020-11-22 13:08:17,692 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/sv-benchmarks/c/termination-numeric/Addition01-1.c [2020-11-22 13:08:17,699 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/data/9aec98f5b/a09fb8655bd648a0a8570add09854fd4/FLAGe435f921e [2020-11-22 13:08:18,068 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/data/9aec98f5b/a09fb8655bd648a0a8570add09854fd4 [2020-11-22 13:08:18,071 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-22 13:08:18,073 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-22 13:08:18,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:18,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-22 13:08:18,085 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-22 13:08:18,086 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2f250b5e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18, skipping insertion in model container [2020-11-22 13:08:18,088 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,095 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-22 13:08:18,111 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-22 13:08:18,276 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:18,300 INFO L203 MainTranslator]: Completed pre-run [2020-11-22 13:08:18,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-22 13:08:18,328 INFO L208 MainTranslator]: Completed translation [2020-11-22 13:08:18,329 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18 WrapperNode [2020-11-22 13:08:18,329 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-22 13:08:18,330 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:18,330 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-22 13:08:18,331 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-22 13:08:18,340 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,352 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,371 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-22 13:08:18,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-22 13:08:18,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-22 13:08:18,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-22 13:08:18,381 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,382 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,393 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,393 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,396 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,398 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,399 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... [2020-11-22 13:08:18,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-22 13:08:18,405 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-22 13:08:18,405 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-22 13:08:18,405 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-22 13:08:18,406 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/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 [2020-11-22 13:08:18,493 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-22 13:08:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-22 13:08:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-22 13:08:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-22 13:08:18,494 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-22 13:08:18,494 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-22 13:08:18,895 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-22 13:08:18,896 INFO L298 CfgBuilder]: Removed 4 assume(true) statements. [2020-11-22 13:08:18,898 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:18 BoogieIcfgContainer [2020-11-22 13:08:18,898 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-22 13:08:18,900 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-22 13:08:18,900 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-22 13:08:18,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-22 13:08:18,906 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.11 01:08:18" (1/3) ... [2020-11-22 13:08:18,907 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69600c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:18, skipping insertion in model container [2020-11-22 13:08:18,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.11 01:08:18" (2/3) ... [2020-11-22 13:08:18,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@69600c76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.11 01:08:18, skipping insertion in model container [2020-11-22 13:08:18,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:18" (3/3) ... [2020-11-22 13:08:18,909 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition01-1.c [2020-11-22 13:08:18,920 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-22 13:08:18,924 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2020-11-22 13:08:18,935 INFO L253 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2020-11-22 13:08:18,955 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-22 13:08:18,955 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-22 13:08:18,955 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-22 13:08:18,955 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-22 13:08:18,956 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-22 13:08:18,956 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-22 13:08:18,956 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-22 13:08:18,956 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-22 13:08:18,970 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states. [2020-11-22 13:08:18,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-11-22 13:08:18,974 INFO L414 BasicCegarLoop]: Found error trace [2020-11-22 13:08:18,975 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-22 13:08:18,976 INFO L429 AbstractCegarLoop]: === Iteration 1 === [additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-22 13:08:18,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-22 13:08:18,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1493980581, now seen corresponding path program 1 times [2020-11-22 13:08:18,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-22 13:08:18,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1338192579] [2020-11-22 13:08:18,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-22 13:08:19,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:19,088 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:19,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-22 13:08:19,113 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-22 13:08:19,134 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-22 13:08:19,138 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-22 13:08:19,139 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-22 13:08:19,161 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.11 01:08:19 BoogieIcfgContainer [2020-11-22 13:08:19,161 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-22 13:08:19,162 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-22 13:08:19,162 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-22 13:08:19,163 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-22 13:08:19,163 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.11 01:08:18" (3/4) ... [2020-11-22 13:08:19,165 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-22 13:08:19,204 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_224b183b-6e15-431b-9bde-56e2f841553a/bin/utaipan/witness.graphml [2020-11-22 13:08:19,204 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-22 13:08:19,207 INFO L168 Benchmark]: Toolchain (without parser) took 1132.25 ms. Allocated memory is still 92.3 MB. Free memory was 58.0 MB in the beginning and 37.2 MB in the end (delta: 20.8 MB). Peak memory consumption was 18.3 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,207 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 62.4 MB in the beginning and 62.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:19,208 INFO L168 Benchmark]: CACSL2BoogieTranslator took 250.80 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 69.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,209 INFO L168 Benchmark]: Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-22 13:08:19,210 INFO L168 Benchmark]: Boogie Preprocessor took 29.17 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 67.3 MB in the end (delta: 911.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,211 INFO L168 Benchmark]: RCFGBuilder took 493.63 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 52.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,212 INFO L168 Benchmark]: TraceAbstraction took 261.63 ms. Allocated memory is still 92.3 MB. Free memory was 51.5 MB in the beginning and 39.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,212 INFO L168 Benchmark]: Witness Printer took 42.37 ms. Allocated memory is still 92.3 MB. Free memory was 39.0 MB in the beginning and 37.2 MB in the end (delta: 1.8 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-22 13:08:19,217 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 92.3 MB. Free memory was 62.4 MB in the beginning and 62.4 MB in the end (delta: 27.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 250.80 ms. Allocated memory is still 92.3 MB. Free memory was 57.7 MB in the beginning and 69.5 MB in the end (delta: -11.7 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 41.11 ms. Allocated memory is still 92.3 MB. Free memory was 69.5 MB in the beginning and 68.2 MB in the end (delta: 1.2 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 29.17 ms. Allocated memory is still 92.3 MB. Free memory was 68.2 MB in the beginning and 67.3 MB in the end (delta: 911.4 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 493.63 ms. Allocated memory is still 92.3 MB. Free memory was 67.3 MB in the beginning and 52.3 MB in the end (delta: 15.1 MB). Peak memory consumption was 14.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 261.63 ms. Allocated memory is still 92.3 MB. Free memory was 51.5 MB in the beginning and 39.3 MB in the end (delta: 12.2 MB). Peak memory consumption was 12.6 MB. Max. memory is 16.1 GB. * Witness Printer took 42.37 ms. Allocated memory is still 92.3 MB. Free memory was 39.0 MB in the beginning and 37.2 MB in the end (delta: 1.8 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] COND FALSE !(m <= 0) [L33] int n = __VERIFIER_nondet_int(); [L34] COND FALSE !(n <= 0) [L37] CALL addition(m,n) VAL [\old(m)=2147483647, \old(n)=1] [L16] COND FALSE !(n == 0) VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L19] COND TRUE n > 0 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] [L20] m+1 VAL [\old(m)=2147483647, \old(n)=1, m=2147483647, n=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 33 locations, 8 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.1s, OverallIterations: 1, TraceHistogramMax: 1, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=33occurred 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, 8 NumberOfCodeBlocks, 8 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, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...