./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 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/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_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/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 0.1.23-1dbac8b [2018-11-10 05:25:52,884 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 05:25:52,885 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 05:25:52,893 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 05:25:52,893 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 05:25:52,893 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 05:25:52,894 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 05:25:52,895 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 05:25:52,896 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 05:25:52,897 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 05:25:52,897 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 05:25:52,898 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 05:25:52,898 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 05:25:52,899 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 05:25:52,899 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 05:25:52,900 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 05:25:52,901 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 05:25:52,902 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 05:25:52,903 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 05:25:52,904 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 05:25:52,905 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 05:25:52,906 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 05:25:52,908 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 05:25:52,908 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 05:25:52,909 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 05:25:52,909 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 05:25:52,910 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 05:25:52,911 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 05:25:52,911 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 05:25:52,912 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 05:25:52,912 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 05:25:52,912 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 05:25:52,913 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 05:25:52,913 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 05:25:52,913 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 05:25:52,914 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 05:25:52,914 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-10 05:25:52,923 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 05:25:52,923 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 05:25:52,923 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 05:25:52,923 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 05:25:52,924 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 05:25:52,924 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 05:25:52,924 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 05:25:52,924 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 05:25:52,924 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 05:25:52,924 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 05:25:52,925 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 05:25:52,925 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 05:25:52,925 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-10 05:25:52,925 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 05:25:52,925 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 05:25:52,926 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 05:25:52,926 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 05:25:52,927 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 05:25:52,927 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 05:25:52,927 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 05:25:52,927 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 05:25:52,927 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 05:25:52,927 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 05:25:52,928 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 05:25:52,928 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 05:25:52,928 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 05:25:52,928 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 05:25:52,928 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 05:25:52,928 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_ecc2f888-b635-4a99-af05-8a147a832625/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 [2018-11-10 05:25:52,957 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 05:25:52,967 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 05:25:52,970 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 05:25:52,972 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 05:25:52,972 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 05:25:52,973 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-10 05:25:53,024 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/data/64d964028/a9f142b422f94c3a8c30c7edb7142e2f/FLAG1cb5f3261 [2018-11-10 05:25:53,357 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 05:25:53,358 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/sv-benchmarks/c/termination-crafted-lit/AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-10 05:25:53,364 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/data/64d964028/a9f142b422f94c3a8c30c7edb7142e2f/FLAG1cb5f3261 [2018-11-10 05:25:53,375 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/data/64d964028/a9f142b422f94c3a8c30c7edb7142e2f [2018-11-10 05:25:53,377 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 05:25:53,378 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 05:25:53,379 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 05:25:53,379 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 05:25:53,382 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 05:25:53,382 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,385 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2bc1b85a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53, skipping insertion in model container [2018-11-10 05:25:53,385 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,394 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 05:25:53,410 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 05:25:53,531 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:25:53,534 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 05:25:53,546 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 05:25:53,555 INFO L193 MainTranslator]: Completed translation [2018-11-10 05:25:53,555 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53 WrapperNode [2018-11-10 05:25:53,555 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 05:25:53,556 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 05:25:53,556 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 05:25:53,556 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 05:25:53,561 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,569 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 05:25:53,569 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 05:25:53,569 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 05:25:53,569 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 05:25:53,575 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,575 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,575 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,576 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,578 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,580 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,581 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... [2018-11-10 05:25:53,582 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 05:25:53,582 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 05:25:53,582 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 05:25:53,582 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 05:25:53,583 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/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 05:25:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 05:25:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 05:25:53,660 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 05:25:53,660 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 05:25:53,661 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 05:25:53,661 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 05:25:53,771 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 05:25:53,771 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:25:53 BoogieIcfgContainer [2018-11-10 05:25:53,771 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 05:25:53,772 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 05:25:53,772 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 05:25:53,775 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 05:25:53,775 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 05:25:53" (1/3) ... [2018-11-10 05:25:53,775 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164f26b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:25:53, skipping insertion in model container [2018-11-10 05:25:53,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 05:25:53" (2/3) ... [2018-11-10 05:25:53,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@164f26b3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 05:25:53, skipping insertion in model container [2018-11-10 05:25:53,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:25:53" (3/3) ... [2018-11-10 05:25:53,777 INFO L112 eAbstractionObserver]: Analyzing ICFG AliasDarteFeautrierGonnord-SAS2010-speedpldi4_true-termination_true-no-overflow.c [2018-11-10 05:25:53,786 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 05:25:53,792 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-10 05:25:53,802 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-10 05:25:53,825 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 05:25:53,825 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 05:25:53,825 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 05:25:53,825 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 05:25:53,825 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 05:25:53,825 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 05:25:53,826 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 05:25:53,826 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 05:25:53,836 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states. [2018-11-10 05:25:53,841 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:25:53,841 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:53,842 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:53,844 INFO L424 AbstractCegarLoop]: === Iteration 1 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:25:53,848 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:53,848 INFO L82 PathProgramCache]: Analyzing trace with hash 409964900, now seen corresponding path program 1 times [2018-11-10 05:25:53,850 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:53,893 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:53,893 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:53,893 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:53,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:53,954 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:53,956 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:53,956 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:25:53,956 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:53,960 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 05:25:53,971 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 05:25:53,971 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:53,973 INFO L87 Difference]: Start difference. First operand 22 states. Second operand 4 states. [2018-11-10 05:25:54,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:54,064 INFO L93 Difference]: Finished difference Result 36 states and 42 transitions. [2018-11-10 05:25:54,065 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 05:25:54,066 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 05:25:54,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:54,073 INFO L225 Difference]: With dead ends: 36 [2018-11-10 05:25:54,073 INFO L226 Difference]: Without dead ends: 22 [2018-11-10 05:25:54,075 INFO L605 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 [2018-11-10 05:25:54,085 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-11-10 05:25:54,094 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 16. [2018-11-10 05:25:54,095 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-11-10 05:25:54,095 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 17 transitions. [2018-11-10 05:25:54,096 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 17 transitions. Word has length 10 [2018-11-10 05:25:54,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:54,096 INFO L481 AbstractCegarLoop]: Abstraction has 16 states and 17 transitions. [2018-11-10 05:25:54,096 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 05:25:54,097 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 17 transitions. [2018-11-10 05:25:54,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-10 05:25:54,097 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:54,097 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:54,098 INFO L424 AbstractCegarLoop]: === Iteration 2 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:25:54,098 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:54,098 INFO L82 PathProgramCache]: Analyzing trace with hash 409965092, now seen corresponding path program 1 times [2018-11-10 05:25:54,098 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:54,099 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,100 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:54,100 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,100 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:54,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:54,142 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:54,142 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:54,143 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-10 05:25:54,143 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:54,144 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 05:25:54,144 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 05:25:54,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-10 05:25:54,144 INFO L87 Difference]: Start difference. First operand 16 states and 17 transitions. Second operand 4 states. [2018-11-10 05:25:54,195 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:54,195 INFO L93 Difference]: Finished difference Result 22 states and 25 transitions. [2018-11-10 05:25:54,196 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 05:25:54,196 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-10 05:25:54,196 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:54,196 INFO L225 Difference]: With dead ends: 22 [2018-11-10 05:25:54,197 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 05:25:54,197 INFO L605 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 [2018-11-10 05:25:54,198 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 05:25:54,201 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 20. [2018-11-10 05:25:54,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-10 05:25:54,202 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 22 transitions. [2018-11-10 05:25:54,202 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 22 transitions. Word has length 10 [2018-11-10 05:25:54,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:54,202 INFO L481 AbstractCegarLoop]: Abstraction has 20 states and 22 transitions. [2018-11-10 05:25:54,202 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 05:25:54,202 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 22 transitions. [2018-11-10 05:25:54,202 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:25:54,202 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:54,202 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:54,203 INFO L424 AbstractCegarLoop]: === Iteration 3 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:25:54,203 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:54,203 INFO L82 PathProgramCache]: Analyzing trace with hash -175989934, now seen corresponding path program 1 times [2018-11-10 05:25:54,203 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:54,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:54,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,204 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:54,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:54,234 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:54,234 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:54,234 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:25:54,234 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:54,235 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:25:54,235 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:25:54,235 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:25:54,235 INFO L87 Difference]: Start difference. First operand 20 states and 22 transitions. Second operand 3 states. [2018-11-10 05:25:54,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:54,262 INFO L93 Difference]: Finished difference Result 22 states and 24 transitions. [2018-11-10 05:25:54,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:25:54,263 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:25:54,263 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:54,263 INFO L225 Difference]: With dead ends: 22 [2018-11-10 05:25:54,263 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 05:25:54,264 INFO L605 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 [2018-11-10 05:25:54,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 05:25:54,266 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 19. [2018-11-10 05:25:54,266 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-10 05:25:54,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-10 05:25:54,267 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 11 [2018-11-10 05:25:54,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:54,267 INFO L481 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-10 05:25:54,267 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:25:54,267 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-10 05:25:54,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-11-10 05:25:54,268 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:54,268 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:54,268 INFO L424 AbstractCegarLoop]: === Iteration 4 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:25:54,268 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:54,268 INFO L82 PathProgramCache]: Analyzing trace with hash -175983976, now seen corresponding path program 1 times [2018-11-10 05:25:54,268 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:54,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,270 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:54,270 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,270 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:54,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:54,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:54,287 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 05:25:54,287 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-10 05:25:54,287 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:54,287 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 05:25:54,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 05:25:54,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-10 05:25:54,288 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-10 05:25:54,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:54,315 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-11-10 05:25:54,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 05:25:54,315 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2018-11-10 05:25:54,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:54,316 INFO L225 Difference]: With dead ends: 34 [2018-11-10 05:25:54,316 INFO L226 Difference]: Without dead ends: 21 [2018-11-10 05:25:54,316 INFO L605 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 [2018-11-10 05:25:54,316 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states. [2018-11-10 05:25:54,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2018-11-10 05:25:54,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-10 05:25:54,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 23 transitions. [2018-11-10 05:25:54,320 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 23 transitions. Word has length 11 [2018-11-10 05:25:54,321 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:54,321 INFO L481 AbstractCegarLoop]: Abstraction has 21 states and 23 transitions. [2018-11-10 05:25:54,321 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 05:25:54,321 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 23 transitions. [2018-11-10 05:25:54,321 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-10 05:25:54,321 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 05:25:54,322 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 05:25:54,322 INFO L424 AbstractCegarLoop]: === Iteration 5 === [mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-10 05:25:54,322 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:54,322 INFO L82 PathProgramCache]: Analyzing trace with hash 961216832, now seen corresponding path program 1 times [2018-11-10 05:25:54,322 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 05:25:54,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,323 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 05:25:54,323 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 05:25:54,323 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 05:25:54,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 05:25:54,360 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 4 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 05:25:54,360 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 05:25:54,360 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-11-10 05:25:54,361 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 16 with the following transitions: [2018-11-10 05:25:54,362 INFO L202 CegarAbsIntRunner]: [0], [4], [7], [11], [17], [26], [27], [28], [30], [40], [41], [42] [2018-11-10 05:25:54,396 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 05:25:54,397 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 05:25:54,525 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 05:25:54,526 INFO L272 AbstractInterpreter]: Visited 12 different actions 26 times. Merged at 5 different actions 12 times. Never widened. Found 1 fixpoints after 1 different actions. Largest state had 5 variables. [2018-11-10 05:25:54,533 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 05:25:54,533 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 05:25:54,595 INFO L227 lantSequenceWeakener]: Weakened 9 states. On average, predicates are now at 33.33% of their original sizes. [2018-11-10 05:25:54,595 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 05:25:54,638 INFO L415 sIntCurrentIteration]: We unified 14 AI predicates to 14 [2018-11-10 05:25:54,638 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 05:25:54,638 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-11-10 05:25:54,639 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [4] total 8 [2018-11-10 05:25:54,639 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 05:25:54,639 INFO L460 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-10 05:25:54,639 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-10 05:25:54,639 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2018-11-10 05:25:54,640 INFO L87 Difference]: Start difference. First operand 21 states and 23 transitions. Second operand 6 states. [2018-11-10 05:25:54,753 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 05:25:54,753 INFO L93 Difference]: Finished difference Result 21 states and 23 transitions. [2018-11-10 05:25:54,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-10 05:25:54,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-10 05:25:54,754 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 05:25:54,754 INFO L225 Difference]: With dead ends: 21 [2018-11-10 05:25:54,754 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 05:25:54,754 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 17 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=30, Invalid=42, Unknown=0, NotChecked=0, Total=72 [2018-11-10 05:25:54,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 05:25:54,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 05:25:54,755 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 05:25:54,755 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 05:25:54,755 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 15 [2018-11-10 05:25:54,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 05:25:54,756 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 05:25:54,756 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-10 05:25:54,756 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 05:25:54,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 05:25:54,760 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 05:25:54,888 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-10 05:25:54,888 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:25:54,888 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 05:25:54,888 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 05:25:54,888 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 28) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L23(line 23) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L23-1(line 23) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L19-1(lines 19 25) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L17(lines 17 26) no Hoare annotation was computed. [2018-11-10 05:25:54,889 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 26) no Hoare annotation was computed. [2018-11-10 05:25:54,890 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 28) no Hoare annotation was computed. [2018-11-10 05:25:54,890 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 28) the Hoare annotation is: true [2018-11-10 05:25:54,890 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 23) no Hoare annotation was computed. [2018-11-10 05:25:54,890 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-10 05:25:54,890 INFO L425 ceAbstractionStarter]: For program point L20(lines 20 24) no Hoare annotation was computed. [2018-11-10 05:25:54,890 INFO L421 ceAbstractionStarter]: At program point L20-2(lines 19 25) the Hoare annotation is: (let ((.cse0 (* 2 main_~n~0))) (and (<= .cse0 4294967294) (<= 0 (+ .cse0 4294967296)) (let ((.cse4 (* 2 main_~m~0))) (let ((.cse1 (<= .cse4 4294967292)) (.cse2 (<= 2 .cse4)) (.cse3 (* 2 main_~i~0))) (or (and .cse1 .cse2 (<= .cse3 4294967294) (<= 0 (+ .cse3 4294967288))) (and .cse1 (<= .cse3 4294967292) .cse2 (<= 0 (+ .cse3 4294967290)))))))) [2018-11-10 05:25:54,896 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 05:25:54 BoogieIcfgContainer [2018-11-10 05:25:54,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 05:25:54,897 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 05:25:54,897 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 05:25:54,897 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 05:25:54,898 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 05:25:53" (3/4) ... [2018-11-10 05:25:54,900 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 05:25:54,904 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 05:25:54,905 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 05:25:54,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-10 05:25:54,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 05:25:54,907 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-10 05:25:54,933 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_ecc2f888-b635-4a99-af05-8a147a832625/bin-2019/utaipan/witness.graphml [2018-11-10 05:25:54,933 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 05:25:54,933 INFO L168 Benchmark]: Toolchain (without parser) took 1555.68 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 963.0 MB in the beginning and 1.0 GB in the end (delta: -45.5 MB). Peak memory consumption was 91.8 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,934 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:25:54,935 INFO L168 Benchmark]: CACSL2BoogieTranslator took 176.73 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,935 INFO L168 Benchmark]: Boogie Procedure Inliner took 12.95 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 05:25:54,935 INFO L168 Benchmark]: Boogie Preprocessor took 12.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,936 INFO L168 Benchmark]: RCFGBuilder took 189.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,936 INFO L168 Benchmark]: TraceAbstraction took 1124.55 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: 111.2 MB). Peak memory consumption was 111.2 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,936 INFO L168 Benchmark]: Witness Printer took 35.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-10 05:25:54,938 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 1.0 GB. Free memory is still 982.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 176.73 ms. Allocated memory is still 1.0 GB. Free memory was 963.0 MB in the beginning and 952.3 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 12.95 ms. Allocated memory is still 1.0 GB. Free memory is still 952.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 12.80 ms. Allocated memory is still 1.0 GB. Free memory was 952.3 MB in the beginning and 946.9 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 189.42 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 137.4 MB). Free memory was 946.9 MB in the beginning and 1.1 GB in the end (delta: -178.2 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1124.55 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: 111.2 MB). Peak memory consumption was 111.2 MB. Max. memory is 11.5 GB. * Witness Printer took 35.82 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. 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: 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 - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: (2 * n <= 4294967294 && 0 <= 2 * n + 4294967296) && ((((2 * m <= 4294967292 && 2 <= 2 * m) && 2 * i <= 4294967294) && 0 <= 2 * i + 4294967288) || (((2 * m <= 4294967292 && 2 * i <= 4294967292) && 2 <= 2 * m) && 0 <= 2 * i + 4294967290)) - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 22 locations, 4 error locations. SAFE Result, 1.0s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 76 SDslu, 45 SDs, 0 SdLazy, 70 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 29 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 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, 1 AbstIntStrong, 0.9857142857142858 AbsIntWeakeningRatio, 0.2857142857142857 AbsIntAvgWeakeningVarsNumRemoved, 3.5714285714285716 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 9 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 8 NumberOfFragments, 64 HoareAnnotationTreeSize, 5 FomulaSimplifications, 77 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 318 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 57 NumberOfCodeBlocks, 57 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1330 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 4 PerfectInterpolantSequences, 0/4 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...