./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i --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_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i -s /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/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 458defa6989fd07c9ad90ba734f631bc16cdc88e .............................................................................................................................................................................................................................. 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 11:20:56,418 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-22 11:20:56,419 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-22 11:20:56,428 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-22 11:20:56,428 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-22 11:20:56,429 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-22 11:20:56,430 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-22 11:20:56,431 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-22 11:20:56,432 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-22 11:20:56,433 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-22 11:20:56,433 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-22 11:20:56,434 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-22 11:20:56,434 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-22 11:20:56,435 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-22 11:20:56,436 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-22 11:20:56,436 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-22 11:20:56,437 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-22 11:20:56,438 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-22 11:20:56,439 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-22 11:20:56,440 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-22 11:20:56,441 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-22 11:20:56,442 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-22 11:20:56,443 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-22 11:20:56,443 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-22 11:20:56,445 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-22 11:20:56,445 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-22 11:20:56,445 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-22 11:20:56,446 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-22 11:20:56,446 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-22 11:20:56,447 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-22 11:20:56,447 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-22 11:20:56,447 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-22 11:20:56,448 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-22 11:20:56,449 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-22 11:20:56,449 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-22 11:20:56,450 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-22 11:20:56,450 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-22 11:20:56,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-22 11:20:56,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-22 11:20:56,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-22 11:20:56,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-22 11:20:56,452 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2019-10-22 11:20:56,462 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-22 11:20:56,462 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-22 11:20:56,463 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-22 11:20:56,463 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-22 11:20:56,463 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-22 11:20:56,463 INFO L138 SettingsManager]: * Explicit value domain=true [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Octagon Domain=false [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Abstract domain=CompoundDomain [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Use the RCFG-of-the-future interface=true [2019-10-22 11:20:56,464 INFO L138 SettingsManager]: * Interval Domain=false [2019-10-22 11:20:56,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-22 11:20:56,465 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-10-22 11:20:56,465 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-10-22 11:20:56,466 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-22 11:20:56,467 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-22 11:20:56,467 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-22 11:20:56,467 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-22 11:20:56,467 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-10-22 11:20:56,467 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-10-22 11:20:56,467 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-22 11:20:56,468 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-22 11:20:56,468 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-22 11:20:56,468 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-10-22 11:20:56,468 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-22 11:20:56,468 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-22 11:20:56,468 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-10-22 11:20:56,469 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-22 11:20:56,469 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_3417b9a2-408e-4a5c-8a65-97939c8a05df/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 -> 458defa6989fd07c9ad90ba734f631bc16cdc88e [2019-10-22 11:20:56,503 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-22 11:20:56,512 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-22 11:20:56,515 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-22 11:20:56,516 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-22 11:20:56,516 INFO L275 PluginConnector]: CDTParser initialized [2019-10-22 11:20:56,517 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/../../sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2019-10-22 11:20:56,558 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/data/db5d787eb/a2caf1ef6304437caaa301bbb40c6c13/FLAGabc74dbdf [2019-10-22 11:20:56,976 INFO L306 CDTParser]: Found 1 translation units. [2019-10-22 11:20:56,977 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/sv-benchmarks/c/signedintegeroverflow-regression/PrefixIncrement.i [2019-10-22 11:20:56,985 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/data/db5d787eb/a2caf1ef6304437caaa301bbb40c6c13/FLAGabc74dbdf [2019-10-22 11:20:57,338 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/data/db5d787eb/a2caf1ef6304437caaa301bbb40c6c13 [2019-10-22 11:20:57,340 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-22 11:20:57,341 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-10-22 11:20:57,342 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:57,342 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-22 11:20:57,345 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-22 11:20:57,346 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,349 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5f930c9d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57, skipping insertion in model container [2019-10-22 11:20:57,349 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,356 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-22 11:20:57,384 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-22 11:20:57,685 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,699 INFO L188 MainTranslator]: Completed pre-run [2019-10-22 11:20:57,738 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-22 11:20:57,772 INFO L192 MainTranslator]: Completed translation [2019-10-22 11:20:57,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57 WrapperNode [2019-10-22 11:20:57,773 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-22 11:20:57,774 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,774 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-10-22 11:20:57,774 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-10-22 11:20:57,782 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,800 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,818 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-10-22 11:20:57,818 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,819 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-22 11:20:57,819 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-22 11:20:57,827 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,828 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,829 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,829 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,834 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,835 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,836 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... [2019-10-22 11:20:57,838 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-22 11:20:57,838 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-22 11:20:57,840 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-22 11:20:57,840 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-22 11:20:57,841 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/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 11:20:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-22 11:20:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-22 11:20:57,899 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-22 11:20:57,899 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-22 11:20:58,100 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-22 11:20:58,100 INFO L284 CfgBuilder]: Removed 4 assume(true) statements. [2019-10-22 11:20:58,101 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58 BoogieIcfgContainer [2019-10-22 11:20:58,102 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-22 11:20:58,102 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-22 11:20:58,103 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-22 11:20:58,105 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-22 11:20:58,106 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 11:20:57" (1/3) ... [2019-10-22 11:20:58,107 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527625ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,107 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 11:20:57" (2/3) ... [2019-10-22 11:20:58,108 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@527625ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 11:20:58, skipping insertion in model container [2019-10-22 11:20:58,108 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58" (3/3) ... [2019-10-22 11:20:58,110 INFO L109 eAbstractionObserver]: Analyzing ICFG PrefixIncrement.i [2019-10-22 11:20:58,120 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-22 11:20:58,127 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2019-10-22 11:20:58,138 INFO L249 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2019-10-22 11:20:58,168 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-10-22 11:20:58,168 INFO L374 AbstractCegarLoop]: Hoare is true [2019-10-22 11:20:58,168 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-22 11:20:58,168 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-22 11:20:58,172 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-22 11:20:58,172 INFO L378 AbstractCegarLoop]: Difference is false [2019-10-22 11:20:58,172 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-22 11:20:58,172 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-22 11:20:58,188 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states. [2019-10-22 11:20:58,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 4 [2019-10-22 11:20:58,195 INFO L372 BasicCegarLoop]: Found error trace [2019-10-22 11:20:58,196 INFO L380 BasicCegarLoop]: trace histogram [1, 1, 1] [2019-10-22 11:20:58,198 INFO L410 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, ULTIMATE.startErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2019-10-22 11:20:58,205 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-22 11:20:58,207 INFO L82 PathProgramCache]: Analyzing trace with hash 29856, now seen corresponding path program 1 times [2019-10-22 11:20:58,215 INFO L157 tionRefinementEngine]: Executing refinement strategy TAIPAN [2019-10-22 11:20:58,216 INFO L342 tionRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1312984073] [2019-10-22 11:20:58,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,217 INFO L116 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-22 11:20:58,217 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-22 11:20:58,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:20:58,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-10-22 11:20:58,355 INFO L168 tionRefinementEngine]: Strategy TAIPAN found a feasible trace [2019-10-22 11:20:58,355 INFO L445 BasicCegarLoop]: Counterexample might be feasible [2019-10-22 11:20:58,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 11:20:58 BoogieIcfgContainer [2019-10-22 11:20:58,380 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-22 11:20:58,380 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-10-22 11:20:58,380 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-10-22 11:20:58,380 INFO L275 PluginConnector]: Witness Printer initialized [2019-10-22 11:20:58,381 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 11:20:58" (3/4) ... [2019-10-22 11:20:58,383 INFO L131 WitnessPrinter]: Generating witness for reachability counterexample [2019-10-22 11:20:58,420 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_3417b9a2-408e-4a5c-8a65-97939c8a05df/bin/utaipan/witness.graphml [2019-10-22 11:20:58,421 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-10-22 11:20:58,423 INFO L168 Benchmark]: Toolchain (without parser) took 1081.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -143.9 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:58,424 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-10-22 11:20:58,425 INFO L168 Benchmark]: CACSL2BoogieTranslator took 431.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,426 INFO L168 Benchmark]: Boogie Procedure Inliner took 44.16 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,427 INFO L168 Benchmark]: Boogie Preprocessor took 19.73 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,428 INFO L168 Benchmark]: RCFGBuilder took 263.66 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,429 INFO L168 Benchmark]: TraceAbstraction took 277.32 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,430 INFO L168 Benchmark]: Witness Printer took 40.79 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2019-10-22 11:20:58,432 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 966.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 431.35 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -183.7 MB). Peak memory consumption was 22.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 44.16 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 19.73 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: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 263.66 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: 22.4 MB). Peak memory consumption was 22.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 277.32 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: 12.1 MB). Peak memory consumption was 12.1 MB. Max. memory is 11.5 GB. * Witness Printer took 40.79 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: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 333]: integer overflow possible integer overflow possible We found a FailurePath: [L332] int x = 2147483647; [L333] ++x - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 9 locations, 2 error locations. Result: UNSAFE, OverallTime: 0.2s, 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=9occurred 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, 3 NumberOfCodeBlocks, 3 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...