./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted/Singapore_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_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/config/AutomizerReach.xml -i ../../sv-benchmarks/c/termination-crafted/Singapore_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer --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 Automizer --witnessprinter.graph.data.architecture 64bit --witnessprinter.graph.data.programhash c60bff7e82e533e3bb1705a3d34f9f725913ed3c ............................................................................................................................................................................................................................. 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 11:46:25,333 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 11:46:25,335 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 11:46:25,341 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 11:46:25,341 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 11:46:25,341 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 11:46:25,342 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 11:46:25,343 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 11:46:25,344 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 11:46:25,345 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 11:46:25,346 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 11:46:25,346 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 11:46:25,346 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 11:46:25,347 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 11:46:25,348 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 11:46:25,348 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 11:46:25,348 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 11:46:25,349 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 11:46:25,350 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 11:46:25,351 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 11:46:25,352 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 11:46:25,353 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 11:46:25,354 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 11:46:25,355 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 11:46:25,355 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 11:46:25,355 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 11:46:25,356 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 11:46:25,356 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 11:46:25,357 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 11:46:25,357 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 11:46:25,357 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 11:46:25,358 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 11:46:25,358 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 11:46:25,358 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 11:46:25,359 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 11:46:25,359 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 11:46:25,360 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/config/svcomp-Overflow-64bit-Automizer_Default.epf [2018-11-10 11:46:25,367 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 11:46:25,367 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 11:46:25,368 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 11:46:25,368 INFO L133 SettingsManager]: * to procedures, called more than once=true [2018-11-10 11:46:25,368 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-10 11:46:25,368 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-10 11:46:25,368 INFO L133 SettingsManager]: * Use SBE=true [2018-11-10 11:46:25,369 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 11:46:25,369 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 11:46:25,370 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 11:46:25,370 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 11:46:25,371 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 11:46:25,371 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer 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 -> Automizer 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 -> c60bff7e82e533e3bb1705a3d34f9f725913ed3c [2018-11-10 11:46:25,389 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 11:46:25,397 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 11:46:25,399 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 11:46:25,400 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 11:46:25,400 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 11:46:25,401 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/../../sv-benchmarks/c/termination-crafted/Singapore_false-no-overflow.c [2018-11-10 11:46:25,436 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/data/5c64fdc3c/ba2789560b6445479b163eeb44cc1ffe/FLAGd2afa4351 [2018-11-10 11:46:25,841 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 11:46:25,842 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/sv-benchmarks/c/termination-crafted/Singapore_false-no-overflow.c [2018-11-10 11:46:25,845 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/data/5c64fdc3c/ba2789560b6445479b163eeb44cc1ffe/FLAGd2afa4351 [2018-11-10 11:46:25,856 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/data/5c64fdc3c/ba2789560b6445479b163eeb44cc1ffe [2018-11-10 11:46:25,858 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 11:46:25,860 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2018-11-10 11:46:25,860 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 11:46:25,860 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 11:46:25,863 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 11:46:25,864 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:25" (1/1) ... [2018-11-10 11:46:25,866 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4bb581ed and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:25, skipping insertion in model container [2018-11-10 11:46:25,866 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 11:46:25" (1/1) ... [2018-11-10 11:46:25,874 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 11:46:25,885 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 11:46:25,979 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:46:25,981 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 11:46:25,990 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 11:46:26,000 INFO L193 MainTranslator]: Completed translation [2018-11-10 11:46:26,001 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26 WrapperNode [2018-11-10 11:46:26,001 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 11:46:26,001 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 11:46:26,002 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 11:46:26,002 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 11:46:26,009 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,009 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,012 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,012 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,014 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,016 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,017 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... [2018-11-10 11:46:26,018 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 11:46:26,018 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 11:46:26,018 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 11:46:26,018 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 11:46:26,018 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/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 11:46:26,083 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 11:46:26,084 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 11:46:26,084 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 11:46:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2018-11-10 11:46:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 11:46:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 11:46:26,084 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 11:46:26,175 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 11:46:26,175 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:26 BoogieIcfgContainer [2018-11-10 11:46:26,176 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 11:46:26,176 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 11:46:26,176 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 11:46:26,179 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 11:46:26,179 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 11:46:25" (1/3) ... [2018-11-10 11:46:26,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb4966b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:26, skipping insertion in model container [2018-11-10 11:46:26,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 11:46:26" (2/3) ... [2018-11-10 11:46:26,180 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@eb4966b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 11:46:26, skipping insertion in model container [2018-11-10 11:46:26,180 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:26" (3/3) ... [2018-11-10 11:46:26,182 INFO L112 eAbstractionObserver]: Analyzing ICFG Singapore_false-no-overflow.c [2018-11-10 11:46:26,189 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 11:46:26,195 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-10 11:46:26,207 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-10 11:46:26,230 INFO L135 ementStrategyFactory]: Using default assertion order modulation [2018-11-10 11:46:26,230 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 11:46:26,230 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 11:46:26,230 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 11:46:26,230 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 11:46:26,231 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 11:46:26,231 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 11:46:26,231 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 11:46:26,231 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 11:46:26,244 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-10 11:46:26,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2018-11-10 11:46:26,248 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 11:46:26,249 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2018-11-10 11:46:26,251 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 11:46:26,254 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 11:46:26,255 INFO L82 PathProgramCache]: Analyzing trace with hash 2091251449, now seen corresponding path program 1 times [2018-11-10 11:46:26,256 INFO L225 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-10 11:46:26,257 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-10 11:46:26,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:46:26,301 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 11:46:26,301 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 11:46:26,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:46:26,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-10 11:46:26,332 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-10 11:46:26,344 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 11:46:26 BoogieIcfgContainer [2018-11-10 11:46:26,345 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 11:46:26,345 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 11:46:26,345 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 11:46:26,345 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 11:46:26,345 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 11:46:26" (3/4) ... [2018-11-10 11:46:26,347 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-10 11:46:26,372 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_e1a64494-8d34-4e5b-9ee9-ad7e092b2fc5/bin-2019/uautomizer/witness.graphml [2018-11-10 11:46:26,372 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 11:46:26,373 INFO L168 Benchmark]: Toolchain (without parser) took 513.67 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -146.6 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:46:26,373 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 11:46:26,374 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.92 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-11-10 11:46:26,374 INFO L168 Benchmark]: Boogie Preprocessor took 16.18 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 11:46:26,375 INFO L168 Benchmark]: RCFGBuilder took 157.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. [2018-11-10 11:46:26,375 INFO L168 Benchmark]: TraceAbstraction took 168.27 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. [2018-11-10 11:46:26,376 INFO L168 Benchmark]: Witness Printer took 27.15 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. [2018-11-10 11:46:26,378 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 985.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.92 ms. Allocated memory is still 1.0 GB. Free memory was 960.3 MB in the beginning and 949.5 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 16.18 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 157.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 135.3 MB). Free memory was 949.5 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 22.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 168.27 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: 16.1 MB). Peak memory consumption was 16.1 MB. Max. memory is 11.5 GB. * Witness Printer took 27.15 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: 16]: 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] x + y VAL [x=2147483646, y=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 8 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=29occurred 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, 6 NumberOfCodeBlocks, 6 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...