./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c -s /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/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 32bit --witnessprinter.graph.data.programhash 287218d656262a35fea12dfac61f3b9a1cd68325 ...................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(OVERFLOW) --- Real Ultimate output --- This is Ultimate 0.2.0-a4ecdab [2020-11-30 02:05:30,447 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 02:05:30,451 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 02:05:30,514 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 02:05:30,515 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 02:05:30,517 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 02:05:30,518 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 02:05:30,521 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 02:05:30,523 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 02:05:30,524 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 02:05:30,525 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 02:05:30,527 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 02:05:30,527 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 02:05:30,529 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 02:05:30,530 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 02:05:30,531 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 02:05:30,532 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 02:05:30,533 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 02:05:30,535 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 02:05:30,538 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 02:05:30,540 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 02:05:30,541 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 02:05:30,543 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 02:05:30,544 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 02:05:30,547 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 02:05:30,548 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 02:05:30,548 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 02:05:30,549 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 02:05:30,550 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 02:05:30,551 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 02:05:30,552 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 02:05:30,553 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 02:05:30,554 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 02:05:30,555 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 02:05:30,556 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 02:05:30,557 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 02:05:30,558 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 02:05:30,558 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 02:05:30,559 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 02:05:30,560 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 02:05:30,561 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 02:05:30,562 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/config/svcomp-Overflow-32bit-Taipan_Default.epf [2020-11-30 02:05:30,588 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 02:05:30,588 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 02:05:30,589 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2020-11-30 02:05:30,589 INFO L138 SettingsManager]: * User list type=DISABLED [2020-11-30 02:05:30,589 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Explicit value domain=true [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Octagon Domain=false [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2020-11-30 02:05:30,590 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2020-11-30 02:05:30,591 INFO L138 SettingsManager]: * Interval Domain=false [2020-11-30 02:05:30,591 INFO L136 SettingsManager]: Preferences of Sifa differ from their defaults: [2020-11-30 02:05:30,591 INFO L138 SettingsManager]: * Call Summarizer=TopInputCallSummarizer [2020-11-30 02:05:30,591 INFO L138 SettingsManager]: * Simplification Technique=SIMPLIFY_QUICK [2020-11-30 02:05:30,592 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 02:05:30,592 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 02:05:30,592 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-30 02:05:30,593 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-30 02:05:30,594 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-11-30 02:05:30,594 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 02:05:30,594 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 02:05:30,594 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 02:05:30,594 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-30 02:05:30,595 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 02:05:30,595 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-30 02:05:30,595 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-30 02:05:30,595 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:05:30,595 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Trace refinement strategy=SIFA_TAIPAN [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-30 02:05:30,596 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 02:05:30,597 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2020-11-30 02:05:30,597 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_b2deb442-4307-4310-8e0b-3055002797f7/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 287218d656262a35fea12dfac61f3b9a1cd68325 [2020-11-30 02:05:30,876 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 02:05:30,903 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 02:05:30,906 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 02:05:30,907 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 02:05:30,908 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 02:05:30,909 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/../../sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2020-11-30 02:05:30,977 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/data/086f924f5/ee350f50d34b441b8f7fadff5a855257/FLAG1d7aade2c [2020-11-30 02:05:31,388 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 02:05:31,389 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/sv-benchmarks/c/recursive/Addition02WithOverflowBug.c [2020-11-30 02:05:31,396 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/data/086f924f5/ee350f50d34b441b8f7fadff5a855257/FLAG1d7aade2c [2020-11-30 02:05:31,791 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/data/086f924f5/ee350f50d34b441b8f7fadff5a855257 [2020-11-30 02:05:31,794 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 02:05:31,796 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 02:05:31,797 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 02:05:31,798 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 02:05:31,801 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 02:05:31,802 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,805 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1c70c983 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:31, skipping insertion in model container [2020-11-30 02:05:31,805 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 02:05:31" (1/1) ... [2020-11-30 02:05:31,813 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 02:05:31,826 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 02:05:31,995 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:05:32,037 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 02:05:32,055 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 02:05:32,071 INFO L208 MainTranslator]: Completed translation [2020-11-30 02:05:32,072 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32 WrapperNode [2020-11-30 02:05:32,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 02:05:32,073 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 02:05:32,074 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 02:05:32,074 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 02:05:32,083 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,091 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,109 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 02:05:32,110 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 02:05:32,110 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 02:05:32,111 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 02:05:32,119 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,119 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,134 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,135 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,138 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,140 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,141 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... [2020-11-30 02:05:32,143 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 02:05:32,144 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 02:05:32,144 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 02:05:32,144 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 02:05:32,148 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-30 02:05:32,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 02:05:32,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 02:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 02:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 02:05:32,240 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2020-11-30 02:05:32,240 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2020-11-30 02:05:32,663 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 02:05:32,663 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-11-30 02:05:32,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32 BoogieIcfgContainer [2020-11-30 02:05:32,665 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 02:05:32,667 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-30 02:05:32,667 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-30 02:05:32,671 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-30 02:05:32,671 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 30.11 02:05:31" (1/3) ... [2020-11-30 02:05:32,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9e9c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:05:32, skipping insertion in model container [2020-11-30 02:05:32,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 02:05:32" (2/3) ... [2020-11-30 02:05:32,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d9e9c81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 30.11 02:05:32, skipping insertion in model container [2020-11-30 02:05:32,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32" (3/3) ... [2020-11-30 02:05:32,675 INFO L111 eAbstractionObserver]: Analyzing ICFG Addition02WithOverflowBug.c [2020-11-30 02:05:32,701 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-11-30 02:05:32,706 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 10 error locations. [2020-11-30 02:05:32,722 INFO L253 AbstractCegarLoop]: Starting to check reachability of 10 error locations. [2020-11-30 02:05:32,754 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-30 02:05:32,754 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-30 02:05:32,754 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-11-30 02:05:32,755 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 02:05:32,755 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 02:05:32,755 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-30 02:05:32,755 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 02:05:32,755 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-30 02:05:32,772 INFO L276 IsEmpty]: Start isEmpty. Operand 34 states. [2020-11-30 02:05:32,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2020-11-30 02:05:32,777 INFO L414 BasicCegarLoop]: Found error trace [2020-11-30 02:05:32,778 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2020-11-30 02:05:32,779 INFO L429 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, additionErr7ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2020-11-30 02:05:32,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 02:05:32,786 INFO L82 PathProgramCache]: Analyzing trace with hash -1609641216, now seen corresponding path program 1 times [2020-11-30 02:05:32,797 INFO L162 FreeRefinementEngine]: Executing refinement strategy SIFA_TAIPAN [2020-11-30 02:05:32,797 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1590285114] [2020-11-30 02:05:32,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 02:05:32,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:05:32,910 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:05:32,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 02:05:32,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 02:05:32,954 INFO L173 FreeRefinementEngine]: Strategy SIFA_TAIPAN found a feasible trace [2020-11-30 02:05:32,954 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-30 02:05:32,955 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-30 02:05:32,980 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 30.11 02:05:32 BoogieIcfgContainer [2020-11-30 02:05:32,980 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-30 02:05:32,981 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 02:05:32,981 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 02:05:32,982 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 02:05:32,982 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 02:05:32" (3/4) ... [2020-11-30 02:05:32,985 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2020-11-30 02:05:33,024 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_b2deb442-4307-4310-8e0b-3055002797f7/bin/utaipan/witness.graphml [2020-11-30 02:05:33,024 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 02:05:33,026 INFO L168 Benchmark]: Toolchain (without parser) took 1229.46 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 52.5 MB in the beginning and 74.3 MB in the end (delta: -21.8 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:05:33,027 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:05:33,028 INFO L168 Benchmark]: CACSL2BoogieTranslator took 275.05 ms. Allocated memory is still 88.1 MB. Free memory was 52.3 MB in the beginning and 66.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:33,028 INFO L168 Benchmark]: Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 64.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:05:33,029 INFO L168 Benchmark]: Boogie Preprocessor took 33.39 ms. Allocated memory is still 88.1 MB. Free memory was 64.9 MB in the beginning and 64.0 MB in the end (delta: 931.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:33,030 INFO L168 Benchmark]: RCFGBuilder took 521.51 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 46.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:33,031 INFO L168 Benchmark]: TraceAbstraction took 313.41 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.9 MB in the beginning and 76.0 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 02:05:33,032 INFO L168 Benchmark]: Witness Printer took 42.98 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.3 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 02:05:33,037 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 88.1 MB. Free memory is still 68.4 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 275.05 ms. Allocated memory is still 88.1 MB. Free memory was 52.3 MB in the beginning and 66.2 MB in the end (delta: -14.0 MB). Peak memory consumption was 7.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 35.78 ms. Allocated memory is still 88.1 MB. Free memory was 66.2 MB in the beginning and 64.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 33.39 ms. Allocated memory is still 88.1 MB. Free memory was 64.9 MB in the beginning and 64.0 MB in the end (delta: 931.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 521.51 ms. Allocated memory is still 88.1 MB. Free memory was 63.8 MB in the beginning and 46.3 MB in the end (delta: 17.5 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 313.41 ms. Allocated memory was 88.1 MB in the beginning and 107.0 MB in the end (delta: 18.9 MB). Free memory was 45.9 MB in the beginning and 76.0 MB in the end (delta: -30.1 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 42.98 ms. Allocated memory is still 107.0 MB. Free memory was 76.0 MB in the beginning and 74.3 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L29] int m = __VERIFIER_nondet_int(); [L30] int n = __VERIFIER_nondet_int(); [L31] 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, 34 locations, 10 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 0.2s, 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=34occurred 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, 6 NumberOfCodeBlocks, 6 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...