./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/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_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/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 0.1.23-635dfa2 [2018-12-02 09:39:58,742 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-02 09:39:58,743 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-02 09:39:58,749 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-02 09:39:58,749 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-02 09:39:58,750 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-02 09:39:58,751 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-02 09:39:58,751 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-02 09:39:58,752 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-02 09:39:58,753 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-02 09:39:58,753 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-02 09:39:58,753 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-02 09:39:58,754 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-02 09:39:58,754 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-02 09:39:58,755 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-02 09:39:58,755 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-02 09:39:58,756 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-02 09:39:58,757 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-02 09:39:58,758 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-02 09:39:58,759 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-02 09:39:58,759 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-02 09:39:58,760 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-02 09:39:58,761 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-02 09:39:58,761 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-02 09:39:58,761 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-02 09:39:58,762 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-02 09:39:58,762 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-02 09:39:58,763 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-02 09:39:58,763 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-02 09:39:58,763 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-02 09:39:58,764 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-02 09:39:58,764 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-02 09:39:58,764 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-02 09:39:58,764 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-02 09:39:58,765 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-02 09:39:58,765 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-02 09:39:58,765 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-02 09:39:58,773 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-02 09:39:58,773 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-02 09:39:58,773 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-02 09:39:58,773 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-02 09:39:58,773 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-02 09:39:58,774 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-02 09:39:58,774 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-02 09:39:58,775 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-02 09:39:58,775 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-02 09:39:58,775 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 09:39:58,776 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-02 09:39:58,776 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-02 09:39:58,777 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_9a57ab0a-5578-426c-9d4a-fe152548f750/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 [2018-12-02 09:39:58,793 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-02 09:39:58,800 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-02 09:39:58,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-02 09:39:58,803 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-02 09:39:58,803 INFO L276 PluginConnector]: CDTParser initialized [2018-12-02 09:39:58,803 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-12-02 09:39:58,839 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/data/530f66bbc/ea46fb6914014eb2a8173702985b5fed/FLAG3d336fd28 [2018-12-02 09:39:59,263 INFO L307 CDTParser]: Found 1 translation units. [2018-12-02 09:39:59,263 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/sv-benchmarks/c/termination-crafted-lit/NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-12-02 09:39:59,267 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/data/530f66bbc/ea46fb6914014eb2a8173702985b5fed/FLAG3d336fd28 [2018-12-02 09:39:59,274 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/data/530f66bbc/ea46fb6914014eb2a8173702985b5fed [2018-12-02 09:39:59,276 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-02 09:39:59,277 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-02 09:39:59,277 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-02 09:39:59,277 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-02 09:39:59,279 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-02 09:39:59,280 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,281 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@fd2551a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59, skipping insertion in model container [2018-12-02 09:39:59,281 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,285 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-02 09:39:59,294 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-02 09:39:59,375 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:39:59,377 INFO L191 MainTranslator]: Completed pre-run [2018-12-02 09:39:59,386 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-02 09:39:59,393 INFO L195 MainTranslator]: Completed translation [2018-12-02 09:39:59,394 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59 WrapperNode [2018-12-02 09:39:59,394 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-02 09:39:59,394 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-02 09:39:59,394 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-02 09:39:59,394 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-02 09:39:59,399 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,402 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,406 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-02 09:39:59,406 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-02 09:39:59,406 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-02 09:39:59,406 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-02 09:39:59,411 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,412 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,414 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,417 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,417 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... [2018-12-02 09:39:59,418 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-02 09:39:59,418 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-02 09:39:59,418 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-02 09:39:59,418 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-02 09:39:59,419 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-02 09:39:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-02 09:39:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-02 09:39:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-02 09:39:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-02 09:39:59,481 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-02 09:39:59,481 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-02 09:39:59,582 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-02 09:39:59,582 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-02 09:39:59,582 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:39:59 BoogieIcfgContainer [2018-12-02 09:39:59,582 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-02 09:39:59,583 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-02 09:39:59,583 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-02 09:39:59,585 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-02 09:39:59,585 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 02.12 09:39:59" (1/3) ... [2018-12-02 09:39:59,585 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470f1339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:39:59, skipping insertion in model container [2018-12-02 09:39:59,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 02.12 09:39:59" (2/3) ... [2018-12-02 09:39:59,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@470f1339 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 02.12 09:39:59, skipping insertion in model container [2018-12-02 09:39:59,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:39:59" (3/3) ... [2018-12-02 09:39:59,587 INFO L112 eAbstractionObserver]: Analyzing ICFG NoriSharma-FSE2013-Fig8_false-no-overflow.c [2018-12-02 09:39:59,593 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-02 09:39:59,597 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 8 error locations. [2018-12-02 09:39:59,607 INFO L257 AbstractCegarLoop]: Starting to check reachability of 8 error locations. [2018-12-02 09:39:59,625 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-02 09:39:59,625 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-02 09:39:59,625 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-02 09:39:59,625 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-02 09:39:59,625 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-02 09:39:59,625 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-02 09:39:59,625 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-02 09:39:59,625 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-02 09:39:59,636 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states. [2018-12-02 09:39:59,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-02 09:39:59,639 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 09:39:59,639 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:39:59,641 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 09:39:59,644 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:39:59,645 INFO L82 PathProgramCache]: Analyzing trace with hash -484171252, now seen corresponding path program 1 times [2018-12-02 09:39:59,646 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 09:39:59,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,680 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:39:59,680 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,680 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 09:39:59,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:39:59,730 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:39:59,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:39:59,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 09:39:59,732 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 09:39:59,734 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 09:39:59,743 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 09:39:59,743 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 09:39:59,744 INFO L87 Difference]: Start difference. First operand 28 states. Second operand 3 states. [2018-12-02 09:39:59,766 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:39:59,766 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2018-12-02 09:39:59,766 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 09:39:59,767 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 7 [2018-12-02 09:39:59,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 09:39:59,772 INFO L225 Difference]: With dead ends: 40 [2018-12-02 09:39:59,772 INFO L226 Difference]: Without dead ends: 26 [2018-12-02 09:39:59,774 INFO L631 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 [2018-12-02 09:39:59,784 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-12-02 09:39:59,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 25. [2018-12-02 09:39:59,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-12-02 09:39:59,794 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2018-12-02 09:39:59,795 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 7 [2018-12-02 09:39:59,795 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 09:39:59,795 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2018-12-02 09:39:59,795 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 09:39:59,795 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2018-12-02 09:39:59,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-02 09:39:59,796 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 09:39:59,796 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:39:59,796 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 09:39:59,796 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:39:59,797 INFO L82 PathProgramCache]: Analyzing trace with hash -2124406877, now seen corresponding path program 1 times [2018-12-02 09:39:59,797 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 09:39:59,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,798 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:39:59,798 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,798 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 09:39:59,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:39:59,815 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:39:59,816 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:39:59,816 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 09:39:59,816 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 09:39:59,817 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 09:39:59,817 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 09:39:59,818 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 09:39:59,818 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand 3 states. [2018-12-02 09:39:59,827 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:39:59,827 INFO L93 Difference]: Finished difference Result 25 states and 26 transitions. [2018-12-02 09:39:59,828 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 09:39:59,828 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-02 09:39:59,828 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 09:39:59,828 INFO L225 Difference]: With dead ends: 25 [2018-12-02 09:39:59,828 INFO L226 Difference]: Without dead ends: 24 [2018-12-02 09:39:59,829 INFO L631 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 [2018-12-02 09:39:59,829 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-02 09:39:59,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-12-02 09:39:59,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-12-02 09:39:59,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2018-12-02 09:39:59,831 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 8 [2018-12-02 09:39:59,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 09:39:59,831 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2018-12-02 09:39:59,831 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 09:39:59,832 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2018-12-02 09:39:59,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 09:39:59,832 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 09:39:59,832 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:39:59,832 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 09:39:59,832 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:39:59,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1445541595, now seen corresponding path program 1 times [2018-12-02 09:39:59,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 09:39:59,833 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,834 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:39:59,834 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,834 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 09:39:59,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-02 09:39:59,850 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-02 09:39:59,850 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-02 09:39:59,850 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-02 09:39:59,850 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-02 09:39:59,851 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-02 09:39:59,851 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-02 09:39:59,851 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-02 09:39:59,851 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand 3 states. [2018-12-02 09:39:59,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-02 09:39:59,872 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2018-12-02 09:39:59,872 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-02 09:39:59,872 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-02 09:39:59,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-02 09:39:59,873 INFO L225 Difference]: With dead ends: 24 [2018-12-02 09:39:59,873 INFO L226 Difference]: Without dead ends: 23 [2018-12-02 09:39:59,873 INFO L631 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 [2018-12-02 09:39:59,874 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-12-02 09:39:59,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-12-02 09:39:59,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-12-02 09:39:59,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-12-02 09:39:59,876 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 10 [2018-12-02 09:39:59,876 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-02 09:39:59,876 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-12-02 09:39:59,876 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-02 09:39:59,876 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-12-02 09:39:59,876 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-02 09:39:59,876 INFO L394 BasicCegarLoop]: Found error trace [2018-12-02 09:39:59,876 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-02 09:39:59,877 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr7ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr6ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr5ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr4ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-02 09:39:59,877 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-02 09:39:59,877 INFO L82 PathProgramCache]: Analyzing trace with hash -1445541275, now seen corresponding path program 1 times [2018-12-02 09:39:59,877 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-02 09:39:59,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,878 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-02 09:39:59,878 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-02 09:39:59,878 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-02 09:39:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:39:59,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2018-12-02 09:39:59,896 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2018-12-02 09:39:59,910 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 02.12 09:39:59 BoogieIcfgContainer [2018-12-02 09:39:59,910 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-02 09:39:59,910 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-02 09:39:59,910 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-02 09:39:59,910 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-02 09:39:59,910 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 02.12 09:39:59" (3/4) ... [2018-12-02 09:39:59,912 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2018-12-02 09:39:59,935 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a57ab0a-5578-426c-9d4a-fe152548f750/bin-2019/utaipan/witness.graphml [2018-12-02 09:39:59,935 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-02 09:39:59,936 INFO L168 Benchmark]: Toolchain (without parser) took 659.32 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 957.1 MB in the beginning and 1.1 GB in the end (delta: -108.8 MB). Peak memory consumption was 20.2 MB. Max. memory is 11.5 GB. [2018-12-02 09:39:59,937 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:39:59,937 INFO L168 Benchmark]: CACSL2BoogieTranslator took 116.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-12-02 09:39:59,937 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:39:59,937 INFO L168 Benchmark]: Boogie Preprocessor took 12.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-02 09:39:59,937 INFO L168 Benchmark]: RCFGBuilder took 164.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2018-12-02 09:39:59,938 INFO L168 Benchmark]: TraceAbstraction took 327.02 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. [2018-12-02 09:39:59,938 INFO L168 Benchmark]: Witness Printer took 25.32 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. [2018-12-02 09:39:59,940 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 976.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 116.43 ms. Allocated memory is still 1.0 GB. Free memory was 957.1 MB in the beginning and 945.3 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.67 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.08 ms. Allocated memory is still 1.0 GB. Free memory is still 945.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 164.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.0 MB). Free memory was 945.3 MB in the beginning and 1.1 GB in the end (delta: -163.6 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 327.02 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: 43.0 MB). Peak memory consumption was 43.0 MB. Max. memory is 11.5 GB. * Witness Printer took 25.32 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, 28 locations, 8 error locations. UNSAFE Result, 0.2s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 59 SDtfs, 32 SDslu, 32 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=28occurred 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, 35 NumberOfCodeBlocks, 35 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 22 ConstructedInterpolants, 0 QuantifiedInterpolants, 322 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...