./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_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_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/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 f560e32afd5a40adf4a98abbf810cb377947c4f4 ......................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 15:50:55,189 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 15:50:55,190 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 15:50:55,198 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 15:50:55,199 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 15:50:55,199 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 15:50:55,200 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 15:50:55,200 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 15:50:55,201 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 15:50:55,202 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 15:50:55,203 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 15:50:55,203 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 15:50:55,203 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 15:50:55,204 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 15:50:55,205 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 15:50:55,205 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 15:50:55,207 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 15:50:55,208 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 15:50:55,209 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 15:50:55,210 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 15:50:55,211 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 15:50:55,211 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 15:50:55,213 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 15:50:55,213 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 15:50:55,213 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 15:50:55,214 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 15:50:55,215 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 15:50:55,215 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 15:50:55,216 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 15:50:55,217 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 15:50:55,217 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 15:50:55,217 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 15:50:55,217 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 15:50:55,218 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 15:50:55,219 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 15:50:55,219 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 15:50:55,220 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 15:50:55,230 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 15:50:55,230 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 15:50:55,230 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 15:50:55,231 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 15:50:55,231 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 15:50:55,232 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 15:50:55,232 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 15:50:55,232 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 15:50:55,232 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 15:50:55,232 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 15:50:55,232 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 15:50:55,233 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 15:50:55,233 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 15:50:55,234 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 15:50:55,234 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 15:50:55,235 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 15:50:55,235 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 15:50:55,235 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_9a04e252-b86a-48d9-b8b1-8857aab6fd87/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 -> f560e32afd5a40adf4a98abbf810cb377947c4f4 [2018-11-18 15:50:55,261 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 15:50:55,270 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 15:50:55,273 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 15:50:55,274 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 15:50:55,274 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 15:50:55,275 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 15:50:55,319 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/data/713375c10/4103de1515dc4595b6ac12ce67577414/FLAG2e9b08ba1 [2018-11-18 15:50:55,706 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 15:50:55,707 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 15:50:55,711 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/data/713375c10/4103de1515dc4595b6ac12ce67577414/FLAG2e9b08ba1 [2018-11-18 15:50:55,720 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/data/713375c10/4103de1515dc4595b6ac12ce67577414 [2018-11-18 15:50:55,723 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 15:50:55,724 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 15:50:55,724 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 15:50:55,724 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 15:50:55,727 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 15:50:55,727 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,729 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3a2f065d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55, skipping insertion in model container [2018-11-18 15:50:55,729 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,737 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 15:50:55,750 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 15:50:55,871 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:50:55,873 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 15:50:55,882 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 15:50:55,890 INFO L195 MainTranslator]: Completed translation [2018-11-18 15:50:55,890 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55 WrapperNode [2018-11-18 15:50:55,891 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 15:50:55,891 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 15:50:55,891 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 15:50:55,891 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 15:50:55,897 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,901 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,905 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 15:50:55,906 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 15:50:55,906 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 15:50:55,906 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 15:50:55,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,911 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,911 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,913 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,917 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,918 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... [2018-11-18 15:50:55,919 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 15:50:55,919 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 15:50:55,919 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 15:50:55,920 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 15:50:55,921 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/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 15:50:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 15:50:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 15:50:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 15:50:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 15:50:55,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 15:50:55,993 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 15:50:56,086 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 15:50:56,086 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:56 BoogieIcfgContainer [2018-11-18 15:50:56,086 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 15:50:56,087 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 15:50:56,087 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 15:50:56,089 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 15:50:56,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 03:50:55" (1/3) ... [2018-11-18 15:50:56,089 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da4da54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:50:56, skipping insertion in model container [2018-11-18 15:50:56,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 03:50:55" (2/3) ... [2018-11-18 15:50:56,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@da4da54 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 03:50:56, skipping insertion in model container [2018-11-18 15:50:56,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:56" (3/3) ... [2018-11-18 15:50:56,091 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-18 15:50:56,097 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 15:50:56,101 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 15:50:56,110 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 15:50:56,133 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 15:50:56,134 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 15:50:56,134 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 15:50:56,134 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 15:50:56,134 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 15:50:56,134 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 15:50:56,134 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 15:50:56,135 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 15:50:56,148 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-18 15:50:56,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:50:56,152 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:50:56,153 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:56,154 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 15:50:56,157 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,158 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-11-18 15:50:56,159 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:50:56,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,191 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,191 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,191 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:50:56,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,252 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 15:50:56,254 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:50:56,254 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:50:56,254 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:50:56,258 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:50:56,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:50:56,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:50:56,271 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-11-18 15:50:56,345 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:56,346 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-18 15:50:56,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:50:56,347 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 15:50:56,347 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:50:56,355 INFO L225 Difference]: With dead ends: 36 [2018-11-18 15:50:56,355 INFO L226 Difference]: Without dead ends: 22 [2018-11-18 15:50:56,357 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:50:56,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-18 15:50:56,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2018-11-18 15:50:56,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-18 15:50:56,378 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-18 15:50:56,379 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-18 15:50:56,379 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:50:56,379 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-18 15:50:56,379 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:50:56,379 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-18 15:50:56,379 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 15:50:56,380 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:50:56,380 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:56,380 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 15:50:56,380 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,380 INFO L82 PathProgramCache]: Analyzing trace with hash 409965092, now seen corresponding path program 1 times [2018-11-18 15:50:56,380 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:50:56,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,382 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,382 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,382 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:50:56,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,424 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 15:50:56,424 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:50:56,424 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 15:50:56,424 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:50:56,426 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 15:50:56,426 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 15:50:56,427 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 15:50:56,427 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-11-18 15:50:56,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:56,473 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-11-18 15:50:56,474 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 15:50:56,474 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 15:50:56,474 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:50:56,474 INFO L225 Difference]: With dead ends: 22 [2018-11-18 15:50:56,474 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 15:50:56,475 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-11-18 15:50:56,475 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 15:50:56,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-18 15:50:56,479 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 15:50:56,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-18 15:50:56,479 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-11-18 15:50:56,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:50:56,480 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-18 15:50:56,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 15:50:56,480 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-18 15:50:56,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:50:56,480 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:50:56,480 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:56,481 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 15:50:56,481 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,481 INFO L82 PathProgramCache]: Analyzing trace with hash -175989934, now seen corresponding path program 1 times [2018-11-18 15:50:56,481 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:50:56,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,482 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,482 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,483 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:50:56,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,507 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 15:50:56,507 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:50:56,507 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:50:56,507 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:50:56,507 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:50:56,508 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:50:56,508 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:50:56,508 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2018-11-18 15:50:56,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:56,552 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-18 15:50:56,552 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:50:56,552 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 15:50:56,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:50:56,553 INFO L225 Difference]: With dead ends: 22 [2018-11-18 15:50:56,553 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 15:50:56,553 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 15:50:56,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 15:50:56,555 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-11-18 15:50:56,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 15:50:56,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 15:50:56,556 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-11-18 15:50:56,556 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:50:56,556 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 15:50:56,556 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:50:56,557 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 15:50:56,557 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-18 15:50:56,557 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:50:56,557 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:56,557 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 15:50:56,557 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,558 INFO L82 PathProgramCache]: Analyzing trace with hash -175983976, now seen corresponding path program 1 times [2018-11-18 15:50:56,558 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:50:56,558 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,559 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,559 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,559 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:50:56,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,574 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 15:50:56,574 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 15:50:56,574 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 15:50:56,574 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:50:56,575 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 15:50:56,575 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 15:50:56,575 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 15:50:56,575 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-18 15:50:56,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:56,590 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-18 15:50:56,590 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 15:50:56,590 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-18 15:50:56,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:50:56,591 INFO L225 Difference]: With dead ends: 34 [2018-11-18 15:50:56,591 INFO L226 Difference]: Without dead ends: 21 [2018-11-18 15:50:56,591 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 15:50:56,591 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-18 15:50:56,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-18 15:50:56,594 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 15:50:56,595 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-18 15:50:56,595 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 11 [2018-11-18 15:50:56,595 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:50:56,595 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-18 15:50:56,595 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 15:50:56,595 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-18 15:50:56,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-18 15:50:56,596 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 15:50:56,596 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 15:50:56,596 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 15:50:56,596 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,596 INFO L82 PathProgramCache]: Analyzing trace with hash 961216832, now seen corresponding path program 1 times [2018-11-18 15:50:56,596 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 15:50:56,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 15:50:56,597 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 15:50:56,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,627 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:56,628 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:50:56,628 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-18 15:50:56,628 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-18 15:50:56,630 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [26], [27], [28], [30], [40], [41], [42] [2018-11-18 15:50:56,649 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-11-18 15:50:56,649 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-18 15:50:56,721 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-11-18 15:50:56,722 INFO L272 AbstractInterpreter]: Visited 12 different actions 12 times. Never merged. Never widened. Performed 30 root evaluator evaluations with a maximum evaluation depth of 3. Performed 30 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-11-18 15:50:56,730 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 15:50:56,730 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-11-18 15:50:56,731 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-18 15:50:56,731 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-18 15:50:56,737 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 15:50:56,737 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-18 15:50:56,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 15:50:56,747 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-18 15:50:56,808 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:56,808 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-18 15:50:56,850 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 15:50:56,867 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 2 imperfect interpolant sequences. [2018-11-18 15:50:56,867 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 4] total 10 [2018-11-18 15:50:56,867 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 15:50:56,867 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 15:50:56,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 15:50:56,868 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2018-11-18 15:50:56,868 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 5 states. [2018-11-18 15:50:56,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 15:50:56,907 INFO L93 Difference]: Finished difference Result 23 states and 25 transitions. [2018-11-18 15:50:56,907 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 15:50:56,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 15 [2018-11-18 15:50:56,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 15:50:56,908 INFO L225 Difference]: With dead ends: 23 [2018-11-18 15:50:56,908 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 15:50:56,908 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2018-11-18 15:50:56,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 15:50:56,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 15:50:56,909 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 15:50:56,909 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 15:50:56,909 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-18 15:50:56,909 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 15:50:56,910 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 15:50:56,910 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 15:50:56,910 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 15:50:56,910 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 15:50:56,914 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 15:50:56,961 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 15:50:56,961 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:50:56,961 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 15:50:56,962 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 28) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-18 15:50:56,962 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 25) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 26) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 26) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 28) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 28) the Hoare annotation is: true [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-18 15:50:56,963 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-11-18 15:50:56,964 INFO L421 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (let ((.cse0 (<= main_~n~0 2147483647)) (.cse1 (< 0 main_~m~0))) (or (and .cse0 .cse1 (<= main_~m~0 2147483647) (<= (+ main_~i~0 main_~m~0) 2147483647)) (and (<= main_~i~0 2147483647) .cse0 (<= main_~m~0 main_~i~0) .cse1))) [2018-11-18 15:50:56,971 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 03:50:56 BoogieIcfgContainer [2018-11-18 15:50:56,971 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 15:50:56,971 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 15:50:56,972 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 15:50:56,972 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 15:50:56,972 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 03:50:56" (3/4) ... [2018-11-18 15:50:56,974 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 15:50:56,977 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 15:50:56,978 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 15:50:56,980 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-18 15:50:56,980 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 15:50:56,980 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 15:50:57,005 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9a04e252-b86a-48d9-b8b1-8857aab6fd87/bin-2019/utaipan/witness.graphml [2018-11-18 15:50:57,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 15:50:57,005 INFO L168 Benchmark]: Toolchain (without parser) took 1282.43 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 960.7 MB in the beginning and 1.0 GB in the end (delta: -68.1 MB). Peak memory consumption was 84.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:57,006 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:57,007 INFO L168 Benchmark]: CACSL2BoogieTranslator took 166.37 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:57,007 INFO L168 Benchmark]: Boogie Procedure Inliner took 14.38 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:57,007 INFO L168 Benchmark]: Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:57,008 INFO L168 Benchmark]: RCFGBuilder took 167.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:57,008 INFO L168 Benchmark]: TraceAbstraction took 884.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. [2018-11-18 15:50:57,008 INFO L168 Benchmark]: Witness Printer took 33.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 15:50:57,011 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 982.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 166.37 ms. Allocated memory is still 1.0 GB. Free memory was 960.7 MB in the beginning and 950.0 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 14.38 ms. Allocated memory is still 1.0 GB. Free memory is still 950.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 13.59 ms. Allocated memory is still 1.0 GB. Free memory was 950.0 MB in the beginning and 944.6 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 167.12 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 152.6 MB). Free memory was 944.6 MB in the beginning and 1.1 GB in the end (delta: -188.0 MB). Peak memory consumption was 14.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 884.42 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 103.7 MB). Peak memory consumption was 103.7 MB. Max. memory is 11.5 GB. * Witness Printer took 33.58 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 23]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 23]: 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: 19]: Loop Invariant Derived loop invariant: (((n <= 2147483647 && 0 < m) && m <= 2147483647) && i + m <= 2147483647) || (((i <= 2147483647 && n <= 2147483647) && m <= i) && 0 < m) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 0.8s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 63 SDslu, 45 SDs, 0 SdLazy, 84 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.1s 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, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 33 HoareAnnotationTreeSize, 5 FomulaSimplifications, 99 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 8 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 72 NumberOfCodeBlocks, 72 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 80 ConstructedInterpolants, 1 QuantifiedInterpolants, 3416 SizeOfPredicates, 3 NumberOfNonLiveVariables, 33 ConjunctsInSsa, 6 ConjunctsInUnsatCore, 7 InterpolantComputations, 5 PerfectInterpolantSequences, 4/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...