./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.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 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/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_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/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 0.1.23-635dfa2 [2018-12-03 07:28:28,876 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-03 07:28:28,877 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-03 07:28:28,883 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-03 07:28:28,883 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-03 07:28:28,884 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-03 07:28:28,884 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-03 07:28:28,885 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-03 07:28:28,886 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-03 07:28:28,886 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-03 07:28:28,887 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-03 07:28:28,887 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-03 07:28:28,887 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-03 07:28:28,888 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-03 07:28:28,888 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-03 07:28:28,889 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-03 07:28:28,889 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-03 07:28:28,890 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-03 07:28:28,891 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-03 07:28:28,891 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-03 07:28:28,892 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-03 07:28:28,892 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-03 07:28:28,893 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-03 07:28:28,893 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-03 07:28:28,894 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-03 07:28:28,894 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-03 07:28:28,894 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-03 07:28:28,895 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-03 07:28:28,895 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-03 07:28:28,896 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-03 07:28:28,896 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-03 07:28:28,896 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-03 07:28:28,896 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-03 07:28:28,896 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-03 07:28:28,897 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-03 07:28:28,897 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-03 07:28:28,897 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-03 07:28:28,904 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-03 07:28:28,904 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-03 07:28:28,905 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-03 07:28:28,905 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-03 07:28:28,905 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-03 07:28:28,906 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-03 07:28:28,906 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-03 07:28:28,907 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-03 07:28:28,907 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-03 07:28:28,907 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-03 07:28:28,908 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-03 07:28:28,908 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-03 07:28:28,908 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-03 07:28:28,908 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-03 07:28:28,908 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-03 07:28:28,908 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_f277f1c1-b894-44d2-bfef-f547b95831f5/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 [2018-12-03 07:28:28,925 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-03 07:28:28,932 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-03 07:28:28,933 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-03 07:28:28,934 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-03 07:28:28,935 INFO L276 PluginConnector]: CDTParser initialized [2018-12-03 07:28:28,935 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-12-03 07:28:28,969 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/data/1f8e0b53b/f8732608cbeb44ffa69bcbf593ac26bf/FLAG3f5d074a7 [2018-12-03 07:28:29,375 INFO L307 CDTParser]: Found 1 translation units. [2018-12-03 07:28:29,376 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/sv-benchmarks/c/termination-crafted-lit/LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-12-03 07:28:29,379 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/data/1f8e0b53b/f8732608cbeb44ffa69bcbf593ac26bf/FLAG3f5d074a7 [2018-12-03 07:28:29,388 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/data/1f8e0b53b/f8732608cbeb44ffa69bcbf593ac26bf [2018-12-03 07:28:29,389 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-03 07:28:29,390 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-03 07:28:29,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:29,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-03 07:28:29,393 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-03 07:28:29,393 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,395 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3033e242 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29, skipping insertion in model container [2018-12-03 07:28:29,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-03 07:28:29,409 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-03 07:28:29,493 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:29,495 INFO L191 MainTranslator]: Completed pre-run [2018-12-03 07:28:29,504 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-03 07:28:29,511 INFO L195 MainTranslator]: Completed translation [2018-12-03 07:28:29,512 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29 WrapperNode [2018-12-03 07:28:29,512 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-03 07:28:29,512 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:29,512 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-03 07:28:29,512 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-03 07:28:29,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,520 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-03 07:28:29,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-03 07:28:29,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-03 07:28:29,524 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-03 07:28:29,529 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,530 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,530 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,530 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,532 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,563 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... [2018-12-03 07:28:29,564 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-03 07:28:29,565 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-03 07:28:29,565 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-03 07:28:29,565 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-03 07:28:29,565 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/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 [2018-12-03 07:28:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-03 07:28:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-03 07:28:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-03 07:28:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-03 07:28:29,597 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-03 07:28:29,597 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-03 07:28:29,679 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-03 07:28:29,679 INFO L280 CfgBuilder]: Removed 1 assue(true) statements. [2018-12-03 07:28:29,679 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:29 BoogieIcfgContainer [2018-12-03 07:28:29,680 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-03 07:28:29,680 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-03 07:28:29,680 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-03 07:28:29,682 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-03 07:28:29,682 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.12 07:28:29" (1/3) ... [2018-12-03 07:28:29,682 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3a0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:29, skipping insertion in model container [2018-12-03 07:28:29,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.12 07:28:29" (2/3) ... [2018-12-03 07:28:29,683 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63f3a0b9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.12 07:28:29, skipping insertion in model container [2018-12-03 07:28:29,683 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:29" (3/3) ... [2018-12-03 07:28:29,684 INFO L112 eAbstractionObserver]: Analyzing ICFG LeikeHeizmann-TACAS2014-Ex9_true-termination_true-no-overflow.c [2018-12-03 07:28:29,690 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-03 07:28:29,694 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-03 07:28:29,703 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-03 07:28:29,722 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-03 07:28:29,722 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-03 07:28:29,722 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-03 07:28:29,722 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-03 07:28:29,722 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-03 07:28:29,722 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-03 07:28:29,722 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-03 07:28:29,723 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-03 07:28:29,733 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-03 07:28:29,736 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-03 07:28:29,736 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:29,737 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:29,738 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:28:29,741 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:29,741 INFO L82 PathProgramCache]: Analyzing trace with hash 1148438726, now seen corresponding path program 1 times [2018-12-03 07:28:29,743 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:29,775 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,776 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:29,776 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,776 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:29,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:29,824 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:29,825 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:29,825 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:29,825 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:28:29,828 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:29,836 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:29,836 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:29,837 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-12-03 07:28:29,859 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:29,860 INFO L93 Difference]: Finished difference Result 26 states and 28 transitions. [2018-12-03 07:28:29,860 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:29,861 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2018-12-03 07:28:29,861 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:29,867 INFO L225 Difference]: With dead ends: 26 [2018-12-03 07:28:29,867 INFO L226 Difference]: Without dead ends: 15 [2018-12-03 07:28:29,869 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 [2018-12-03 07:28:29,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-03 07:28:29,887 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 15. [2018-12-03 07:28:29,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15 states. [2018-12-03 07:28:29,888 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15 states to 15 states and 17 transitions. [2018-12-03 07:28:29,889 INFO L78 Accepts]: Start accepts. Automaton has 15 states and 17 transitions. Word has length 8 [2018-12-03 07:28:29,889 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:29,889 INFO L480 AbstractCegarLoop]: Abstraction has 15 states and 17 transitions. [2018-12-03 07:28:29,889 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:29,889 INFO L276 IsEmpty]: Start isEmpty. Operand 15 states and 17 transitions. [2018-12-03 07:28:29,890 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 07:28:29,890 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:29,890 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:29,890 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:28:29,890 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:29,890 INFO L82 PathProgramCache]: Analyzing trace with hash 1241862188, now seen corresponding path program 1 times [2018-12-03 07:28:29,890 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:29,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,891 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:29,891 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,891 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:29,894 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:29,910 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:29,910 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:29,911 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:29,911 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:28:29,911 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:29,912 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:29,912 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:29,912 INFO L87 Difference]: Start difference. First operand 15 states and 17 transitions. Second operand 3 states. [2018-12-03 07:28:29,922 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:29,923 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-03 07:28:29,923 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:29,923 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-03 07:28:29,923 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:29,923 INFO L225 Difference]: With dead ends: 16 [2018-12-03 07:28:29,923 INFO L226 Difference]: Without dead ends: 15 [2018-12-03 07:28:29,924 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 [2018-12-03 07:28:29,924 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-03 07:28:29,925 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-03 07:28:29,925 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-03 07:28:29,926 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-12-03 07:28:29,926 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 9 [2018-12-03 07:28:29,926 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:29,926 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-12-03 07:28:29,926 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:29,926 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-03 07:28:29,926 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-03 07:28:29,927 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:29,927 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:29,927 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:28:29,927 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:29,927 INFO L82 PathProgramCache]: Analyzing trace with hash 1241868178, now seen corresponding path program 1 times [2018-12-03 07:28:29,927 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,928 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:29,928 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,928 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:29,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:29,940 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:29,941 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:29,941 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:29,941 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:28:29,941 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:29,941 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:29,941 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:29,941 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 3 states. [2018-12-03 07:28:29,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:29,954 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-03 07:28:29,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:29,955 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-03 07:28:29,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:29,955 INFO L225 Difference]: With dead ends: 14 [2018-12-03 07:28:29,955 INFO L226 Difference]: Without dead ends: 13 [2018-12-03 07:28:29,956 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 [2018-12-03 07:28:29,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2018-12-03 07:28:29,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 13. [2018-12-03 07:28:29,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2018-12-03 07:28:29,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 15 transitions. [2018-12-03 07:28:29,959 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 15 transitions. Word has length 9 [2018-12-03 07:28:29,959 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:29,959 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 15 transitions. [2018-12-03 07:28:29,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:29,959 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 15 transitions. [2018-12-03 07:28:29,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-03 07:28:29,959 INFO L394 BasicCegarLoop]: Found error trace [2018-12-03 07:28:29,959 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-03 07:28:29,960 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-03 07:28:29,960 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-03 07:28:29,960 INFO L82 PathProgramCache]: Analyzing trace with hash -156792087, now seen corresponding path program 1 times [2018-12-03 07:28:29,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-03 07:28:29,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-03 07:28:29,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-03 07:28:29,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-03 07:28:29,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-03 07:28:29,979 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-03 07:28:29,979 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-03 07:28:29,979 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-03 07:28:29,980 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-03 07:28:29,980 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-03 07:28:29,980 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-03 07:28:29,980 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-03 07:28:29,980 INFO L87 Difference]: Start difference. First operand 13 states and 15 transitions. Second operand 3 states. [2018-12-03 07:28:29,994 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-03 07:28:29,994 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2018-12-03 07:28:29,995 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-03 07:28:29,995 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-12-03 07:28:29,995 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-03 07:28:29,995 INFO L225 Difference]: With dead ends: 14 [2018-12-03 07:28:29,995 INFO L226 Difference]: Without dead ends: 0 [2018-12-03 07:28:29,996 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 [2018-12-03 07:28:29,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-03 07:28:29,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-03 07:28:29,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-03 07:28:29,996 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-03 07:28:29,996 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2018-12-03 07:28:29,996 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-03 07:28:29,996 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-03 07:28:29,997 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-03 07:28:29,997 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-03 07:28:29,997 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-03 07:28:30,000 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-03 07:28:30,016 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-03 07:28:30,016 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:28:30,016 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-03 07:28:30,016 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-03 07:28:30,017 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 13 27) no Hoare annotation was computed. [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 23) no Hoare annotation was computed. [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-12-03 07:28:30,017 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 17 25) the Hoare annotation is: (and (<= main_~p~0 2147483647) (<= main_~q~0 2147483647)) [2018-12-03 07:28:30,017 INFO L448 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 25) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 13 27) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 13 27) the Hoare annotation is: true [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point L18(lines 18 24) no Hoare annotation was computed. [2018-12-03 07:28:30,018 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-03 07:28:30,025 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.12 07:28:30 BoogieIcfgContainer [2018-12-03 07:28:30,026 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-03 07:28:30,026 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-03 07:28:30,026 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-03 07:28:30,026 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-03 07:28:30,026 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.12 07:28:29" (3/4) ... [2018-12-03 07:28:30,029 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-03 07:28:30,032 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-03 07:28:30,033 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-03 07:28:30,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-03 07:28:30,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-03 07:28:30,035 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-03 07:28:30,058 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_f277f1c1-b894-44d2-bfef-f547b95831f5/bin-2019/utaipan/witness.graphml [2018-12-03 07:28:30,058 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-03 07:28:30,059 INFO L168 Benchmark]: Toolchain (without parser) took 668.94 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 954.4 MB in the beginning and 1.0 GB in the end (delta: -66.5 MB). Peak memory consumption was 21.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,060 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:30,060 INFO L168 Benchmark]: CACSL2BoogieTranslator took 121.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,060 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-03 07:28:30,060 INFO L168 Benchmark]: Boogie Preprocessor took 40.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,061 INFO L168 Benchmark]: RCFGBuilder took 114.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,061 INFO L168 Benchmark]: TraceAbstraction took 345.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,061 INFO L168 Benchmark]: Witness Printer took 32.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-12-03 07:28:30,063 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 979.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 121.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.4 MB in the beginning and 942.5 MB in the end (delta: 11.9 MB). Peak memory consumption was 11.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.76 ms. Allocated memory is still 1.0 GB. Free memory is still 942.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 40.37 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 88.1 MB). Free memory was 942.5 MB in the beginning and 1.1 GB in the end (delta: -146.4 MB). Peak memory consumption was 12.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 114.89 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 11.6 MB). Peak memory consumption was 11.6 MB. Max. memory is 11.5 GB. * TraceAbstraction took 345.67 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 51.0 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 32.32 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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, 21 locations, 4 error locations. SAFE Result, 0.3s OverallTime, 4 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 38 SDtfs, 29 SDslu, 18 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=21occurred 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, 1 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, 36 NumberOfCodeBlocks, 36 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 32 ConstructedInterpolants, 0 QuantifiedInterpolants, 484 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...