./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Bangalore_v3_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted/Bangalore_v3_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/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 99d3a498a6594dc717f3dd12cc830631cbfca6e4 ......................................................................................................................................................................................................................................... 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 0.1.23-1dbac8b [2018-11-10 07:03:32,110 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 07:03:32,111 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 07:03:32,118 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 07:03:32,118 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 07:03:32,119 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 07:03:32,119 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 07:03:32,121 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 07:03:32,122 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 07:03:32,122 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 07:03:32,123 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 07:03:32,123 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 07:03:32,124 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 07:03:32,125 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 07:03:32,126 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 07:03:32,127 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 07:03:32,128 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 07:03:32,129 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 07:03:32,130 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 07:03:32,132 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 07:03:32,132 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 07:03:32,133 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 07:03:32,135 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 07:03:32,135 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 07:03:32,135 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 07:03:32,136 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 07:03:32,136 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 07:03:32,137 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 07:03:32,138 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 07:03:32,138 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 07:03:32,138 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 07:03:32,139 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 07:03:32,139 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 07:03:32,140 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 07:03:32,140 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 07:03:32,140 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 07:03:32,141 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 07:03:32,150 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 07:03:32,150 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 07:03:32,151 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 07:03:32,151 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 07:03:32,151 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 07:03:32,151 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 07:03:32,151 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 07:03:32,151 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 07:03:32,152 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 07:03:32,152 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 07:03:32,152 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 07:03:32,152 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 07:03:32,152 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 07:03:32,152 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 07:03:32,153 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 07:03:32,154 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 07:03:32,154 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 07:03:32,154 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 07:03:32,154 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_415e884a-d46c-4360-885a-aef145be246c/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 -> 99d3a498a6594dc717f3dd12cc830631cbfca6e4 [2018-11-10 07:03:32,179 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 07:03:32,186 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 07:03:32,188 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 07:03:32,189 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 07:03:32,189 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 07:03:32,189 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted/Bangalore_v3_false-no-overflow.c [2018-11-10 07:03:32,223 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/data/36e01a231/745863aa2bcb41b594137f8bc2e10138/FLAG67d47cb68 [2018-11-10 07:03:32,615 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 07:03:32,615 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/sv-benchmarks/c/termination-crafted/Bangalore_v3_false-no-overflow.c [2018-11-10 07:03:32,620 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/data/36e01a231/745863aa2bcb41b594137f8bc2e10138/FLAG67d47cb68 [2018-11-10 07:03:32,630 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/data/36e01a231/745863aa2bcb41b594137f8bc2e10138 [2018-11-10 07:03:32,632 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 07:03:32,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 07:03:32,634 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:32,634 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 07:03:32,637 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 07:03:32,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dc2202b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32, skipping insertion in model container [2018-11-10 07:03:32,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,647 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 07:03:32,660 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 07:03:32,745 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:32,747 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 07:03:32,755 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 07:03:32,764 INFO L193 MainTranslator]: Completed translation [2018-11-10 07:03:32,764 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32 WrapperNode [2018-11-10 07:03:32,764 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 07:03:32,765 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:32,765 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 07:03:32,765 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 07:03:32,772 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,776 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,780 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 07:03:32,780 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 07:03:32,780 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 07:03:32,780 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 07:03:32,785 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,785 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,785 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,786 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,787 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,790 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,790 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... [2018-11-10 07:03:32,791 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 07:03:32,792 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 07:03:32,792 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 07:03:32,792 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 07:03:32,792 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/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 [2018-11-10 07:03:32,870 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 07:03:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 07:03:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 07:03:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 07:03:32,871 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 07:03:32,871 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 07:03:32,963 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 07:03:32,964 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:32 BoogieIcfgContainer [2018-11-10 07:03:32,964 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 07:03:32,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 07:03:32,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 07:03:32,966 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 07:03:32,966 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 07:03:32" (1/3) ... [2018-11-10 07:03:32,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcdb783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:32, skipping insertion in model container [2018-11-10 07:03:32,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 07:03:32" (2/3) ... [2018-11-10 07:03:32,967 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@bcdb783 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 07:03:32, skipping insertion in model container [2018-11-10 07:03:32,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:32" (3/3) ... [2018-11-10 07:03:32,969 INFO L112 eAbstractionObserver]: Analyzing ICFG Bangalore_v3_false-no-overflow.c [2018-11-10 07:03:32,974 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 07:03:32,979 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 2 error locations. [2018-11-10 07:03:32,988 INFO L257 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2018-11-10 07:03:33,012 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 07:03:33,013 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 07:03:33,013 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 07:03:33,013 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 07:03:33,013 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 07:03:33,013 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 07:03:33,013 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 07:03:33,013 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 07:03:33,027 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states. [2018-11-10 07:03:33,031 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-10 07:03:33,032 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 07:03:33,032 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 07:03:33,033 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 07:03:33,037 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 07:03:33,037 INFO L82 PathProgramCache]: Analyzing trace with hash -217682939, now seen corresponding path program 1 times [2018-11-10 07:03:33,038 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 07:03:33,080 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:33,081 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 07:03:33,081 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 07:03:33,081 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 07:03:33,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:03:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 07:03:33,118 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 07:03:33,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 07:03:33 BoogieIcfgContainer [2018-11-10 07:03:33,131 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 07:03:33,132 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 07:03:33,132 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 07:03:33,132 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 07:03:33,132 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 07:03:32" (3/4) ... [2018-11-10 07:03:33,134 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 07:03:33,164 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_415e884a-d46c-4360-885a-aef145be246c/bin-2019/utaipan/witness.graphml [2018-11-10 07:03:33,165 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 07:03:33,165 INFO L168 Benchmark]: Toolchain (without parser) took 533.04 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -126.0 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:33,166 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:33,167 INFO L168 Benchmark]: CACSL2BoogieTranslator took 130.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:33,167 INFO L168 Benchmark]: Boogie Procedure Inliner took 15.01 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:33,167 INFO L168 Benchmark]: Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:33,168 INFO L168 Benchmark]: RCFGBuilder took 172.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:33,168 INFO L168 Benchmark]: TraceAbstraction took 167.28 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. [2018-11-10 07:03:33,168 INFO L168 Benchmark]: Witness Printer took 32.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 07:03:33,170 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 130.53 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 949.5 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 15.01 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.44 ms. Allocated memory is still 1.0 GB. Free memory is still 949.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 172.17 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 112.2 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 22.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 167.28 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: 14.2 MB). Peak memory consumption was 14.2 MB. Max. memory is 11.5 GB. * Witness Printer took 32.94 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 18]: integer overflow possible integer overflow possible We found a FailurePath: [L12] int x; [L13] int y; [L14] x = __VERIFIER_nondet_int() [L15] y = __VERIFIER_nondet_int() [L16] COND TRUE y <= x VAL [x=2147483646, y=-2] [L17] COND TRUE x >= 0 VAL [x=2147483646, y=-2] [L18] x - y VAL [x=2147483646, y=-2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 17 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=17occurred 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, 9 NumberOfCodeBlocks, 9 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...