./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction_false-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction_false-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/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 75dd2ce3f6219a56f38a72471186bda1e7610d5c .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 03:28:18,173 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 03:28:18,174 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 03:28:18,180 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 03:28:18,180 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 03:28:18,181 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 03:28:18,182 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 03:28:18,183 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 03:28:18,184 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 03:28:18,185 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 03:28:18,185 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 03:28:18,186 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 03:28:18,186 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 03:28:18,187 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 03:28:18,188 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 03:28:18,188 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 03:28:18,189 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 03:28:18,190 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 03:28:18,192 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 03:28:18,193 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 03:28:18,193 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 03:28:18,194 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 03:28:18,196 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 03:28:18,196 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 03:28:18,196 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 03:28:18,197 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 03:28:18,198 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 03:28:18,198 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 03:28:18,199 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 03:28:18,200 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 03:28:18,200 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 03:28:18,200 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 03:28:18,200 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 03:28:18,201 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 03:28:18,201 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 03:28:18,202 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 03:28:18,202 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 03:28:18,213 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 03:28:18,213 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 03:28:18,214 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 03:28:18,214 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 03:28:18,214 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 03:28:18,214 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 03:28:18,215 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 03:28:18,215 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 03:28:18,215 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 03:28:18,215 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 03:28:18,215 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 03:28:18,216 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 03:28:18,216 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 03:28:18,217 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 03:28:18,217 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 03:28:18,217 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 03:28:18,217 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 03:28:18,217 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 03:28:18,217 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 03:28:18,218 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 03:28:18,218 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 03:28:18,219 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 03:28:18,219 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 03:28:18,219 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_ac2020c2-0b5b-422b-a8f6-4e447a141c38/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 -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2018-11-10 03:28:18,244 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 03:28:18,252 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 03:28:18,254 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 03:28:18,255 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 03:28:18,255 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 03:28:18,256 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction_false-termination_true-no-overflow.c [2018-11-10 03:28:18,290 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/data/12ed7f864/f1b2702e55534a51a57048ae00e5b65b/FLAGf072535c8 [2018-11-10 03:28:18,686 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 03:28:18,686 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction_false-termination_true-no-overflow.c [2018-11-10 03:28:18,690 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/data/12ed7f864/f1b2702e55534a51a57048ae00e5b65b/FLAGf072535c8 [2018-11-10 03:28:18,698 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/data/12ed7f864/f1b2702e55534a51a57048ae00e5b65b [2018-11-10 03:28:18,700 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 03:28:18,701 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 03:28:18,701 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 03:28:18,701 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 03:28:18,703 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 03:28:18,704 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,705 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ac897aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18, skipping insertion in model container [2018-11-10 03:28:18,705 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,711 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 03:28:18,722 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 03:28:18,812 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:28:18,814 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 03:28:18,822 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 03:28:18,829 INFO L193 MainTranslator]: Completed translation [2018-11-10 03:28:18,830 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18 WrapperNode [2018-11-10 03:28:18,830 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 03:28:18,830 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 03:28:18,830 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 03:28:18,830 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 03:28:18,835 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,838 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,841 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 03:28:18,841 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 03:28:18,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 03:28:18,841 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 03:28:18,846 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,846 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,846 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,847 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,848 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,851 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,851 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... [2018-11-10 03:28:18,852 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 03:28:18,852 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 03:28:18,852 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 03:28:18,852 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 03:28:18,852 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/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 [2018-11-10 03:28:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 03:28:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 03:28:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 03:28:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 03:28:18,918 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 03:28:18,918 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 03:28:18,991 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 03:28:18,991 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:28:18 BoogieIcfgContainer [2018-11-10 03:28:18,991 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 03:28:18,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 03:28:18,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 03:28:18,994 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 03:28:18,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 03:28:18" (1/3) ... [2018-11-10 03:28:18,994 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f5b2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:28:18, skipping insertion in model container [2018-11-10 03:28:18,994 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 03:28:18" (2/3) ... [2018-11-10 03:28:18,995 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39f5b2d1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 03:28:18, skipping insertion in model container [2018-11-10 03:28:18,995 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:28:18" (3/3) ... [2018-11-10 03:28:18,996 INFO L112 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction_false-termination_true-no-overflow.c [2018-11-10 03:28:19,001 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 03:28:19,005 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2018-11-10 03:28:19,014 INFO L257 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2018-11-10 03:28:19,038 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 03:28:19,038 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 03:28:19,038 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 03:28:19,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 03:28:19,039 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 03:28:19,039 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 03:28:19,039 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 03:28:19,039 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 03:28:19,051 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2018-11-10 03:28:19,055 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 03:28:19,059 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2018-11-10 03:28:19,101 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 03:28:19,102 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 03:28:19,102 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 03:28:19,102 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 14 28) the Hoare annotation is: true [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 14 28) no Hoare annotation was computed. [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point L23(lines 23 25) no Hoare annotation was computed. [2018-11-10 03:28:19,102 INFO L425 ceAbstractionStarter]: For program point L23-2(lines 14 28) no Hoare annotation was computed. [2018-11-10 03:28:19,103 INFO L425 ceAbstractionStarter]: For program point L23-3(lines 23 25) no Hoare annotation was computed. [2018-11-10 03:28:19,103 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-11-10 03:28:19,103 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 14 28) no Hoare annotation was computed. [2018-11-10 03:28:19,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 03:28:19 BoogieIcfgContainer [2018-11-10 03:28:19,105 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 03:28:19,106 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 03:28:19,106 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 03:28:19,106 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 03:28:19,106 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 03:28:18" (3/4) ... [2018-11-10 03:28:19,108 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 03:28:19,113 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 03:28:19,113 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 03:28:19,115 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-10 03:28:19,115 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 03:28:19,116 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 03:28:19,141 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ac2020c2-0b5b-422b-a8f6-4e447a141c38/bin-2019/utaipan/witness.graphml [2018-11-10 03:28:19,141 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 03:28:19,142 INFO L168 Benchmark]: Toolchain (without parser) took 441.80 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 960.2 MB in the beginning and 1.1 GB in the end (delta: -134.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:28:19,143 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:28:19,143 INFO L168 Benchmark]: CACSL2BoogieTranslator took 128.86 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 03:28:19,144 INFO L168 Benchmark]: Boogie Procedure Inliner took 10.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 03:28:19,144 INFO L168 Benchmark]: Boogie Preprocessor took 10.75 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 03:28:19,145 INFO L168 Benchmark]: RCFGBuilder took 139.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -162.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. [2018-11-10 03:28:19,146 INFO L168 Benchmark]: TraceAbstraction took 113.37 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:28:19,146 INFO L168 Benchmark]: Witness Printer took 35.85 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. [2018-11-10 03:28:19,150 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 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 128.86 ms. Allocated memory is still 1.0 GB. Free memory was 960.2 MB in the beginning and 948.4 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 10.71 ms. Allocated memory is still 1.0 GB. Free memory is still 948.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.75 ms. Allocated memory is still 1.0 GB. Free memory was 948.4 MB in the beginning and 945.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 139.55 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 119.5 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -162.5 MB). Peak memory consumption was 20.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 113.37 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: 10.5 MB). Peak memory consumption was 10.5 MB. Max. memory is 11.5 GB. * Witness Printer took 35.85 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: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 13 locations, 0 error locations. SAFE Result, 0.0s OverallTime, 0 OverallIterations, 0 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 4 NumberOfFragments, 4 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...