./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/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 4a648fa5fa39d22cc4861f70709210c393681db2 .............................................................................................................................................................................................................................................. 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 0.1.23-635dfa2 [2018-12-09 09:45:12,069 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 09:45:12,070 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 09:45:12,076 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 09:45:12,077 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 09:45:12,077 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 09:45:12,078 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 09:45:12,079 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 09:45:12,080 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 09:45:12,081 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 09:45:12,082 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 09:45:12,082 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 09:45:12,082 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 09:45:12,083 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 09:45:12,084 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 09:45:12,085 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 09:45:12,085 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 09:45:12,087 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 09:45:12,088 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 09:45:12,089 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 09:45:12,090 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 09:45:12,090 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 09:45:12,092 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 09:45:12,092 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 09:45:12,092 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 09:45:12,093 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 09:45:12,093 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 09:45:12,094 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 09:45:12,094 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 09:45:12,095 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 09:45:12,095 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 09:45:12,095 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 09:45:12,095 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 09:45:12,095 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 09:45:12,096 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 09:45:12,096 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 09:45:12,096 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 09:45:12,104 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 09:45:12,104 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 09:45:12,105 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 09:45:12,105 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 09:45:12,105 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 09:45:12,105 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 09:45:12,105 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 09:45:12,105 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 09:45:12,106 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 09:45:12,106 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 09:45:12,106 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 09:45:12,106 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 09:45:12,106 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 09:45:12,106 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 09:45:12,107 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 09:45:12,108 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 09:45:12,108 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 09:45:12,108 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 09:45:12,108 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 09:45:12,108 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 09:45:12,108 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 09:45:12,109 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 09:45:12,109 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 09:45:12,109 INFO L133 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_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/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 -> 4a648fa5fa39d22cc4861f70709210c393681db2 [2018-12-09 09:45:12,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 09:45:12,139 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 09:45:12,141 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 09:45:12,142 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 09:45:12,143 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 09:45:12,143 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5_false-no-overflow.c [2018-12-09 09:45:12,177 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/data/b78731343/a0a5fc3c380d4d888625f83c9f6f97bb/FLAG84fffed2d [2018-12-09 09:45:12,507 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 09:45:12,507 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-WST2014-Ex5_false-no-overflow.c [2018-12-09 09:45:12,511 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/data/b78731343/a0a5fc3c380d4d888625f83c9f6f97bb/FLAG84fffed2d [2018-12-09 09:45:12,905 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/data/b78731343/a0a5fc3c380d4d888625f83c9f6f97bb [2018-12-09 09:45:12,907 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 09:45:12,908 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 09:45:12,909 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 09:45:12,909 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 09:45:12,911 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 09:45:12,912 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:45:12" (1/1) ... [2018-12-09 09:45:12,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@42aa496 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:12, skipping insertion in model container [2018-12-09 09:45:12,914 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 09:45:12" (1/1) ... [2018-12-09 09:45:12,918 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 09:45:12,927 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 09:45:13,008 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:45:13,010 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 09:45:13,018 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 09:45:13,026 INFO L195 MainTranslator]: Completed translation [2018-12-09 09:45:13,026 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13 WrapperNode [2018-12-09 09:45:13,026 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 09:45:13,026 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 09:45:13,026 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 09:45:13,026 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 09:45:13,031 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,034 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,037 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 09:45:13,037 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 09:45:13,037 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 09:45:13,038 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 09:45:13,042 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,043 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,043 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,043 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,045 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,047 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,047 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... [2018-12-09 09:45:13,048 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 09:45:13,048 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 09:45:13,048 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 09:45:13,048 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 09:45:13,049 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/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 [2018-12-09 09:45:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 09:45:13,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 09:45:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 09:45:13,105 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 09:45:13,105 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 09:45:13,106 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 09:45:13,177 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 09:45:13,177 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-09 09:45:13,177 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:45:13 BoogieIcfgContainer [2018-12-09 09:45:13,177 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 09:45:13,178 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 09:45:13,178 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 09:45:13,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 09:45:13,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 09:45:12" (1/3) ... [2018-12-09 09:45:13,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d90dfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:45:13, skipping insertion in model container [2018-12-09 09:45:13,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 09:45:13" (2/3) ... [2018-12-09 09:45:13,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5d90dfa0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 09:45:13, skipping insertion in model container [2018-12-09 09:45:13,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:45:13" (3/3) ... [2018-12-09 09:45:13,181 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-WST2014-Ex5_false-no-overflow.c [2018-12-09 09:45:13,187 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 09:45:13,190 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-12-09 09:45:13,199 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-12-09 09:45:13,216 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 09:45:13,216 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 09:45:13,216 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 09:45:13,216 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 09:45:13,216 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 09:45:13,216 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 09:45:13,216 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 09:45:13,216 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 09:45:13,229 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states. [2018-12-09 09:45:13,233 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-09 09:45:13,233 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 09:45:13,234 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-09 09:45:13,235 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 09:45:13,238 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 09:45:13,238 INFO L82 PathProgramCache]: Analyzing trace with hash 703472058, now seen corresponding path program 1 times [2018-12-09 09:45:13,239 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 09:45:13,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:45:13,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 09:45:13,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 09:45:13,271 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 09:45:13,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:45:13,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-09 09:45:13,308 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-09 09:45:13,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 09:45:13 BoogieIcfgContainer [2018-12-09 09:45:13,321 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 09:45:13,321 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 09:45:13,321 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 09:45:13,321 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 09:45:13,321 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 09:45:13" (3/4) ... [2018-12-09 09:45:13,323 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-09 09:45:13,351 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7a42d122-768f-43a4-8483-54b9b6dcd95d/bin-2019/utaipan/witness.graphml [2018-12-09 09:45:13,351 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 09:45:13,351 INFO L168 Benchmark]: Toolchain (without parser) took 443.56 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 952.2 MB in the beginning and 1.1 GB in the end (delta: -119.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:45:13,352 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:45:13,352 INFO L168 Benchmark]: CACSL2BoogieTranslator took 117.07 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. [2018-12-09 09:45:13,353 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:45:13,353 INFO L168 Benchmark]: Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 09:45:13,353 INFO L168 Benchmark]: RCFGBuilder took 129.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. [2018-12-09 09:45:13,354 INFO L168 Benchmark]: TraceAbstraction took 143.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. [2018-12-09 09:45:13,354 INFO L168 Benchmark]: Witness Printer took 29.90 ms. Allocated memory is still 1.1 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. [2018-12-09 09:45:13,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 117.07 ms. Allocated memory is still 1.0 GB. Free memory was 952.2 MB in the beginning and 944.2 MB in the end (delta: 8.1 MB). Peak memory consumption was 8.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.00 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.62 ms. Allocated memory is still 1.0 GB. Free memory is still 941.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 129.14 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 105.4 MB). Free memory was 941.5 MB in the beginning and 1.1 GB in the end (delta: -153.0 MB). Peak memory consumption was 15.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 143.07 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 19.9 MB). Peak memory consumption was 19.9 MB. Max. memory is 11.5 GB. * Witness Printer took 29.90 ms. Allocated memory is still 1.1 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: 20]: integer overflow possible integer overflow possible We found a FailurePath: [L14] int a, b, olda; [L15] a = __VERIFIER_nondet_int() [L16] b = __VERIFIER_nondet_int() [L17] COND TRUE a >= 7 [L18] olda = a [L19] a = b VAL [a=2147483647, a=0, b=0] [L20] olda + 1 VAL [a=2147483647, a=0, b=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 15 locations, 2 error locations. UNSAFE Result, 0.1s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=15occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 7 NumberOfCodeBlocks, 7 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...