./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-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_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/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 fce4ad715fa5546a587c43eb09d1a8cb5dcde607 ......................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-5842f4b [2018-11-18 10:59:29,392 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 10:59:29,393 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 10:59:29,400 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 10:59:29,400 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 10:59:29,400 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 10:59:29,401 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 10:59:29,402 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 10:59:29,403 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 10:59:29,404 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 10:59:29,405 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 10:59:29,405 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 10:59:29,406 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 10:59:29,406 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 10:59:29,407 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 10:59:29,408 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 10:59:29,409 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 10:59:29,411 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 10:59:29,412 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 10:59:29,414 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 10:59:29,414 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 10:59:29,415 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 10:59:29,417 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 10:59:29,417 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 10:59:29,417 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 10:59:29,418 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 10:59:29,419 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 10:59:29,419 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 10:59:29,420 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 10:59:29,421 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 10:59:29,422 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 10:59:29,422 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 10:59:29,422 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 10:59:29,423 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 10:59:29,423 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 10:59:29,424 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 10:59:29,424 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 10:59:29,435 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 10:59:29,435 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 10:59:29,436 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 10:59:29,436 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 10:59:29,437 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 10:59:29,437 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 10:59:29,438 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 10:59:29,438 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 10:59:29,438 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 10:59:29,438 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 10:59:29,439 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 10:59:29,440 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 10:59:29,440 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 10:59:29,440 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 10:59:29,442 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 10:59:29,442 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 10:59:29,442 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 10:59:29,443 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 10:59:29,443 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 10:59:29,444 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 10:59:29,444 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_0e49702e-b355-46d7-9c3a-9d23a309e44d/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 -> fce4ad715fa5546a587c43eb09d1a8cb5dcde607 [2018-11-18 10:59:29,469 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 10:59:29,478 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 10:59:29,481 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 10:59:29,482 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 10:59:29,482 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 10:59:29,483 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 10:59:29,528 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/data/490a4a667/fa317be45a50435f8180efa4db2e850b/FLAG756cc2dd3 [2018-11-18 10:59:29,857 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 10:59:29,858 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 10:59:29,862 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/data/490a4a667/fa317be45a50435f8180efa4db2e850b/FLAG756cc2dd3 [2018-11-18 10:59:30,287 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/data/490a4a667/fa317be45a50435f8180efa4db2e850b [2018-11-18 10:59:30,290 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 10:59:30,291 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 10:59:30,291 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 10:59:30,291 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 10:59:30,293 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 10:59:30,294 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,296 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24b26f27 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30, skipping insertion in model container [2018-11-18 10:59:30,296 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 10:59:30,312 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 10:59:30,416 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:59:30,418 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 10:59:30,427 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 10:59:30,435 INFO L195 MainTranslator]: Completed translation [2018-11-18 10:59:30,435 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30 WrapperNode [2018-11-18 10:59:30,435 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 10:59:30,436 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 10:59:30,436 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 10:59:30,436 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 10:59:30,440 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,443 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,447 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 10:59:30,447 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 10:59:30,448 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 10:59:30,448 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 10:59:30,453 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,453 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,453 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,453 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,455 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,458 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,458 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... [2018-11-18 10:59:30,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 10:59:30,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 10:59:30,459 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 10:59:30,460 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 10:59:30,460 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/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 10:59:30,531 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 10:59:30,531 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 10:59:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 10:59:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 10:59:30,532 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 10:59:30,532 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 10:59:30,639 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 10:59:30,640 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:59:30 BoogieIcfgContainer [2018-11-18 10:59:30,640 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 10:59:30,640 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 10:59:30,640 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 10:59:30,642 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 10:59:30,642 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 10:59:30" (1/3) ... [2018-11-18 10:59:30,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59523a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:59:30, skipping insertion in model container [2018-11-18 10:59:30,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 10:59:30" (2/3) ... [2018-11-18 10:59:30,643 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59523a46 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 10:59:30, skipping insertion in model container [2018-11-18 10:59:30,643 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:59:30" (3/3) ... [2018-11-18 10:59:30,644 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-11-18 10:59:30,650 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 10:59:30,655 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 10:59:30,663 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 10:59:30,683 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 10:59:30,683 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 10:59:30,683 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 10:59:30,683 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 10:59:30,683 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 10:59:30,683 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 10:59:30,684 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 10:59:30,684 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 10:59:30,696 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 10:59:30,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 10:59:30,700 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:59:30,701 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:59:30,703 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:59:30,706 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:59:30,706 INFO L82 PathProgramCache]: Analyzing trace with hash 350389648, now seen corresponding path program 1 times [2018-11-18 10:59:30,708 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:59:30,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:59:30,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,743 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:59:30,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:59:30,799 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 10:59:30,800 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:59:30,800 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:59:30,801 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:59:30,803 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:59:30,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:59:30,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:59:30,813 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 3 states. [2018-11-18 10:59:30,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:59:30,846 INFO L93 Difference]: Finished difference Result 27 states and 29 transitions. [2018-11-18 10:59:30,846 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:59:30,847 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 10:59:30,847 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:59:30,853 INFO L225 Difference]: With dead ends: 27 [2018-11-18 10:59:30,854 INFO L226 Difference]: Without dead ends: 16 [2018-11-18 10:59:30,856 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 10:59:30,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2018-11-18 10:59:30,875 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2018-11-18 10:59:30,876 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 10:59:30,877 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-11-18 10:59:30,878 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-11-18 10:59:30,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:59:30,878 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-11-18 10:59:30,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:59:30,879 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-11-18 10:59:30,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:59:30,879 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:59:30,879 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:59:30,880 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:59:30,880 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:59:30,880 INFO L82 PathProgramCache]: Analyzing trace with hash -2022822749, now seen corresponding path program 1 times [2018-11-18 10:59:30,881 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:59:30,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,883 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:59:30,883 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,883 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:59:30,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:59:30,917 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 10:59:30,917 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:59:30,917 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:59:30,918 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:59:30,919 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:59:30,919 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:59:30,919 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:59:30,919 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 3 states. [2018-11-18 10:59:30,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:59:30,935 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-11-18 10:59:30,935 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:59:30,936 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:59:30,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:59:30,936 INFO L225 Difference]: With dead ends: 18 [2018-11-18 10:59:30,936 INFO L226 Difference]: Without dead ends: 17 [2018-11-18 10:59:30,937 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 10:59:30,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-11-18 10:59:30,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 15. [2018-11-18 10:59:30,938 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-11-18 10:59:30,939 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-11-18 10:59:30,939 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 10 [2018-11-18 10:59:30,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:59:30,939 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-11-18 10:59:30,939 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:59:30,939 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-11-18 10:59:30,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 10:59:30,940 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:59:30,940 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:59:30,940 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:59:30,940 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:59:30,940 INFO L82 PathProgramCache]: Analyzing trace with hash -2022816759, now seen corresponding path program 1 times [2018-11-18 10:59:30,940 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:59:30,941 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,941 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:59:30,942 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,942 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:59:30,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:59:30,962 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 10:59:30,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:59:30,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:59:30,962 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:59:30,963 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:59:30,963 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:59:30,963 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:59:30,963 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-11-18 10:59:30,982 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:59:30,982 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-11-18 10:59:30,982 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:59:30,982 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 10:59:30,983 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:59:30,983 INFO L225 Difference]: With dead ends: 15 [2018-11-18 10:59:30,983 INFO L226 Difference]: Without dead ends: 14 [2018-11-18 10:59:30,983 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 10:59:30,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-11-18 10:59:30,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-11-18 10:59:30,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-11-18 10:59:30,985 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-11-18 10:59:30,985 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2018-11-18 10:59:30,985 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:59:30,985 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-11-18 10:59:30,985 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:59:30,985 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-11-18 10:59:30,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 10:59:30,986 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 10:59:30,986 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 10:59:30,986 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 10:59:30,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 10:59:30,986 INFO L82 PathProgramCache]: Analyzing trace with hash 1717189971, now seen corresponding path program 1 times [2018-11-18 10:59:30,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 10:59:30,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 10:59:30,988 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 10:59:30,988 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 10:59:30,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 10:59:31,007 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 10:59:31,008 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 10:59:31,008 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 10:59:31,008 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 10:59:31,008 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 10:59:31,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 10:59:31,009 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 10:59:31,009 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2018-11-18 10:59:31,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 10:59:31,025 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-11-18 10:59:31,026 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 10:59:31,026 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 10:59:31,026 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 10:59:31,026 INFO L225 Difference]: With dead ends: 16 [2018-11-18 10:59:31,026 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 10:59:31,027 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 10:59:31,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 10:59:31,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 10:59:31,027 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 10:59:31,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 10:59:31,027 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 11 [2018-11-18 10:59:31,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 10:59:31,028 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 10:59:31,028 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 10:59:31,028 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 10:59:31,028 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 10:59:31,031 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 10:59:31,057 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 10:59:31,057 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:59:31,057 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 10:59:31,057 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 10:59:31,057 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 10:59:31,057 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 10:59:31,057 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L421 ceAbstractionStarter]: At program point L21-2(lines 17 25) the Hoare annotation is: (and (<= main_~p~0 2147483647) (<= main_~q~0 2147483647)) [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 25) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 25) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-11-18 10:59:31,058 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 24) no Hoare annotation was computed. [2018-11-18 10:59:31,059 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 10:59:31,066 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 10:59:31 BoogieIcfgContainer [2018-11-18 10:59:31,066 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 10:59:31,066 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 10:59:31,066 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 10:59:31,066 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 10:59:31,067 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 10:59:30" (3/4) ... [2018-11-18 10:59:31,069 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 10:59:31,073 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 10:59:31,073 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 10:59:31,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 10:59:31,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 10:59:31,076 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 10:59:31,105 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_0e49702e-b355-46d7-9c3a-9d23a309e44d/bin-2019/utaipan/witness.graphml [2018-11-18 10:59:31,105 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 10:59:31,105 INFO L168 Benchmark]: Toolchain (without parser) took 815.10 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -140.8 MB). Peak memory consumption was 16.0 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,106 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:59:31,106 INFO L168 Benchmark]: CACSL2BoogieTranslator took 144.12 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,107 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.82 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 10:59:31,107 INFO L168 Benchmark]: Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,107 INFO L168 Benchmark]: RCFGBuilder took 180.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,107 INFO L168 Benchmark]: TraceAbstraction took 426.08 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,108 INFO L168 Benchmark]: Witness Printer took 38.49 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. [2018-11-18 10:59:31,110 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 144.12 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 942.0 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 11.82 ms. Allocated memory is still 1.0 GB. Free memory is still 942.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.65 ms. Allocated memory is still 1.0 GB. Free memory was 942.0 MB in the beginning and 939.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 180.33 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 156.8 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -195.9 MB). Peak memory consumption was 14.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 426.08 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: 38.5 MB). Peak memory consumption was 38.5 MB. Max. memory is 11.5 GB. * Witness Printer took 38.49 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: 3.2 MB). Peak memory consumption was 3.2 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: p <= 2147483647 && q <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 44 SDtfs, 31 SDslu, 20 SDs, 0 SdLazy, 35 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 8 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=22occurred 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, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 6 NumberOfFragments, 11 HoareAnnotationTreeSize, 5 FomulaSimplifications, 27 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 40 NumberOfCodeBlocks, 40 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 36 ConstructedInterpolants, 0 QuantifiedInterpolants, 614 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...