./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 5842f4b8 Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/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 00d107e65807c328c5ca82cfbd5c365270dccab4 ...................................................................................................................................................................................................................................................................................................................................................................... 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 0.1.23-5842f4b [2018-11-18 17:33:59,469 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 17:33:59,470 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 17:33:59,478 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 17:33:59,478 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 17:33:59,479 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 17:33:59,480 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 17:33:59,481 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 17:33:59,482 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 17:33:59,482 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 17:33:59,483 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 17:33:59,483 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 17:33:59,484 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 17:33:59,485 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 17:33:59,485 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 17:33:59,486 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 17:33:59,487 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 17:33:59,488 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 17:33:59,489 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 17:33:59,490 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 17:33:59,491 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 17:33:59,492 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 17:33:59,494 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 17:33:59,494 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 17:33:59,494 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 17:33:59,495 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 17:33:59,496 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 17:33:59,496 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 17:33:59,497 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 17:33:59,498 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 17:33:59,498 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 17:33:59,498 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 17:33:59,498 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 17:33:59,499 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 17:33:59,499 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 17:33:59,500 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 17:33:59,500 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 17:33:59,509 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 17:33:59,509 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 17:33:59,509 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 17:33:59,510 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 17:33:59,510 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 17:33:59,510 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 17:33:59,510 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 17:33:59,510 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 17:33:59,510 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 17:33:59,511 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 17:33:59,511 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 17:33:59,511 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 17:33:59,511 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 17:33:59,512 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 17:33:59,512 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 17:33:59,512 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 17:33:59,512 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 17:33:59,512 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 17:33:59,512 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 17:33:59,513 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 17:33:59,513 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 17:33:59,513 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 17:33:59,513 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 17:33:59,513 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 17:33:59,513 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 17:33:59,514 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 17:33:59,516 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 17:33:59,516 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 17:33:59,516 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 17:33:59,516 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 17:33:59,516 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 17:33:59,516 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 17:33:59,517 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 17:33:59,517 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 17:33:59,517 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 17:33:59,517 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 17:33:59,517 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_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/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 -> 00d107e65807c328c5ca82cfbd5c365270dccab4 [2018-11-18 17:33:59,539 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 17:33:59,547 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 17:33:59,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 17:33:59,549 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 17:33:59,550 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 17:33:59,550 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-11-18 17:33:59,585 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/data/26e54b995/6f5d1ebbe27d41f185ef8e55c8bc069a/FLAG02bd79fb0 [2018-11-18 17:33:59,975 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 17:33:59,975 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-11-18 17:33:59,978 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/data/26e54b995/6f5d1ebbe27d41f185ef8e55c8bc069a/FLAG02bd79fb0 [2018-11-18 17:33:59,987 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/data/26e54b995/6f5d1ebbe27d41f185ef8e55c8bc069a [2018-11-18 17:33:59,989 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 17:33:59,990 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 17:33:59,990 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 17:33:59,991 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 17:33:59,993 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 17:33:59,993 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:33:59" (1/1) ... [2018-11-18 17:33:59,995 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2b4915a3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:33:59, skipping insertion in model container [2018-11-18 17:33:59,995 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 05:33:59" (1/1) ... [2018-11-18 17:34:00,000 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 17:34:00,012 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 17:34:00,111 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:34:00,114 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 17:34:00,123 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 17:34:00,132 INFO L195 MainTranslator]: Completed translation [2018-11-18 17:34:00,132 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00 WrapperNode [2018-11-18 17:34:00,132 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 17:34:00,132 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 17:34:00,133 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 17:34:00,133 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 17:34:00,137 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,141 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,145 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 17:34:00,145 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 17:34:00,145 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 17:34:00,145 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 17:34:00,151 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,151 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,151 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,152 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,154 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,156 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,157 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... [2018-11-18 17:34:00,158 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 17:34:00,158 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 17:34:00,158 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 17:34:00,158 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 17:34:00,159 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/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 [2018-11-18 17:34:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 17:34:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 17:34:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 17:34:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 17:34:00,239 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 17:34:00,239 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 17:34:00,354 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 17:34:00,354 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:00 BoogieIcfgContainer [2018-11-18 17:34:00,354 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 17:34:00,355 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 17:34:00,355 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 17:34:00,357 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 17:34:00,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 05:33:59" (1/3) ... [2018-11-18 17:34:00,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c707e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:34:00, skipping insertion in model container [2018-11-18 17:34:00,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 05:34:00" (2/3) ... [2018-11-18 17:34:00,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5c707e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 05:34:00, skipping insertion in model container [2018-11-18 17:34:00,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:00" (3/3) ... [2018-11-18 17:34:00,360 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-11-18 17:34:00,368 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 17:34:00,375 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-11-18 17:34:00,389 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-11-18 17:34:00,416 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 17:34:00,416 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 17:34:00,416 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 17:34:00,416 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 17:34:00,416 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 17:34:00,417 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 17:34:00,417 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 17:34:00,417 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 17:34:00,431 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states. [2018-11-18 17:34:00,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-11-18 17:34:00,435 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:34:00,435 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:34:00,437 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:34:00,440 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:34:00,440 INFO L82 PathProgramCache]: Analyzing trace with hash -352048707, now seen corresponding path program 1 times [2018-11-18 17:34:00,441 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:34:00,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,484 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:34:00,484 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,484 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:34:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:00,536 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:00,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:34:00,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:34:00,538 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:34:00,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:34:00,553 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:34:00,554 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,555 INFO L87 Difference]: Start difference. First operand 29 states. Second operand 3 states. [2018-11-18 17:34:00,583 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:34:00,583 INFO L93 Difference]: Finished difference Result 42 states and 46 transitions. [2018-11-18 17:34:00,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:34:00,585 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-11-18 17:34:00,585 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:34:00,593 INFO L225 Difference]: With dead ends: 42 [2018-11-18 17:34:00,593 INFO L226 Difference]: Without dead ends: 28 [2018-11-18 17:34:00,596 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,608 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-11-18 17:34:00,618 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 27. [2018-11-18 17:34:00,618 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 27 states. [2018-11-18 17:34:00,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 28 transitions. [2018-11-18 17:34:00,620 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 28 transitions. Word has length 8 [2018-11-18 17:34:00,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:34:00,620 INFO L480 AbstractCegarLoop]: Abstraction has 27 states and 28 transitions. [2018-11-18 17:34:00,621 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:34:00,621 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 28 transitions. [2018-11-18 17:34:00,621 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 17:34:00,621 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:34:00,621 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:34:00,622 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:34:00,622 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:34:00,622 INFO L82 PathProgramCache]: Analyzing trace with hash 1971392019, now seen corresponding path program 1 times [2018-11-18 17:34:00,622 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:34:00,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,624 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:34:00,624 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,624 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:34:00,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:00,644 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:00,644 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:34:00,644 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:34:00,644 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:34:00,646 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:34:00,646 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:34:00,646 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,646 INFO L87 Difference]: Start difference. First operand 27 states and 28 transitions. Second operand 3 states. [2018-11-18 17:34:00,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:34:00,660 INFO L93 Difference]: Finished difference Result 27 states and 28 transitions. [2018-11-18 17:34:00,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:34:00,661 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 17:34:00,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:34:00,661 INFO L225 Difference]: With dead ends: 27 [2018-11-18 17:34:00,661 INFO L226 Difference]: Without dead ends: 26 [2018-11-18 17:34:00,662 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-18 17:34:00,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-11-18 17:34:00,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-11-18 17:34:00,665 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 27 transitions. [2018-11-18 17:34:00,665 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 27 transitions. Word has length 9 [2018-11-18 17:34:00,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:34:00,666 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 27 transitions. [2018-11-18 17:34:00,666 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:34:00,666 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 27 transitions. [2018-11-18 17:34:00,666 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:34:00,666 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:34:00,666 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:34:00,666 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:34:00,666 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:34:00,666 INFO L82 PathProgramCache]: Analyzing trace with hash 427154357, now seen corresponding path program 1 times [2018-11-18 17:34:00,667 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:34:00,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,668 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:34:00,668 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,668 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:34:00,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 17:34:00,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 17:34:00,691 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 17:34:00,691 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 17:34:00,691 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 17:34:00,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 17:34:00,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 17:34:00,692 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,692 INFO L87 Difference]: Start difference. First operand 26 states and 27 transitions. Second operand 3 states. [2018-11-18 17:34:00,706 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 17:34:00,706 INFO L93 Difference]: Finished difference Result 26 states and 27 transitions. [2018-11-18 17:34:00,706 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 17:34:00,706 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 17:34:00,706 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 17:34:00,707 INFO L225 Difference]: With dead ends: 26 [2018-11-18 17:34:00,707 INFO L226 Difference]: Without dead ends: 25 [2018-11-18 17:34:00,707 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 17:34:00,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2018-11-18 17:34:00,710 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2018-11-18 17:34:00,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-18 17:34:00,710 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-11-18 17:34:00,711 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 11 [2018-11-18 17:34:00,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 17:34:00,711 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-11-18 17:34:00,711 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 17:34:00,711 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-11-18 17:34:00,711 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 17:34:00,711 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 17:34:00,711 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 17:34:00,712 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 17:34:00,712 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 17:34:00,712 INFO L82 PathProgramCache]: Analyzing trace with hash 427154677, now seen corresponding path program 1 times [2018-11-18 17:34:00,712 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 17:34:00,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,713 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 17:34:00,713 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 17:34:00,713 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 17:34:00,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:34:00,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-11-18 17:34:00,735 INFO L442 BasicCegarLoop]: Counterexample might be feasible [2018-11-18 17:34:00,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 05:34:00 BoogieIcfgContainer [2018-11-18 17:34:00,751 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 17:34:00,751 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 17:34:00,751 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 17:34:00,751 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 17:34:00,751 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 05:34:00" (3/4) ... [2018-11-18 17:34:00,753 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-11-18 17:34:00,777 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f6a6f0e0-674e-4225-a115-fa4ed478d6e9/bin-2019/utaipan/witness.graphml [2018-11-18 17:34:00,777 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 17:34:00,778 INFO L168 Benchmark]: Toolchain (without parser) took 788.60 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -128.0 MB). Peak memory consumption was 8.8 MB. Max. memory is 11.5 GB. [2018-11-18 17:34:00,779 INFO L168 Benchmark]: CDTParser took 0.13 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. [2018-11-18 17:34:00,780 INFO L168 Benchmark]: CACSL2BoogieTranslator took 141.79 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:34:00,780 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.52 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:34:00,780 INFO L168 Benchmark]: Boogie Preprocessor took 12.47 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 17:34:00,780 INFO L168 Benchmark]: RCFGBuilder took 196.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 17:34:00,781 INFO L168 Benchmark]: TraceAbstraction took 396.09 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. [2018-11-18 17:34:00,781 INFO L168 Benchmark]: Witness Printer took 26.60 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 17:34:00,783 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 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 141.79 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 946.4 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 12.52 ms. Allocated memory is still 1.0 GB. Free memory is still 946.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.47 ms. Allocated memory is still 1.0 GB. Free memory was 946.4 MB in the beginning and 943.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 196.46 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.8 MB). Free memory was 943.7 MB in the beginning and 1.1 GB in the end (delta: -179.0 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 396.09 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: 37.6 MB). Peak memory consumption was 37.6 MB. Max. memory is 11.5 GB. * Witness Printer took 26.60 ms. Allocated memory is still 1.2 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: 29]: integer overflow possible integer overflow possible We found a FailurePath: [L15] int c, u, v, w, x, y, z; [L16] x = __VERIFIER_nondet_int() [L17] y = __VERIFIER_nondet_int() [L18] z = __VERIFIER_nondet_int() [L19] u = x [L20] v = y [L21] w = z [L22] c = 0 VAL [c=0, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L23] COND TRUE x >= y VAL [c=0, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L24] EXPR c + 1 [L24] c = c + 1 VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L25] COND FALSE !(z > 1) VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] [L29] y + 1 VAL [c=1, u=2147483647, v=2147483647, w=0, x=2147483647, y=2147483647, z=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 29 locations, 8 error locations. UNSAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 62 SDtfs, 32 SDslu, 33 SDs, 0 SdLazy, 18 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 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: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 39 NumberOfCodeBlocks, 39 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 25 ConstructedInterpolants, 0 QuantifiedInterpolants, 439 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...