./Ultimate.py --spec ../../sv-benchmarks/c/NoOverflows.prp --file ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_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_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/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 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 ..................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 14:52:36,505 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-18 14:52:36,506 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-18 14:52:36,513 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-18 14:52:36,513 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-18 14:52:36,514 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-18 14:52:36,515 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-18 14:52:36,516 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-18 14:52:36,517 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-18 14:52:36,517 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-18 14:52:36,518 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-18 14:52:36,518 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-18 14:52:36,519 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-18 14:52:36,519 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-18 14:52:36,520 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-18 14:52:36,520 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-18 14:52:36,521 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-18 14:52:36,522 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-18 14:52:36,524 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-18 14:52:36,525 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-18 14:52:36,525 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-18 14:52:36,526 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-18 14:52:36,528 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-18 14:52:36,528 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-18 14:52:36,528 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-18 14:52:36,528 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-18 14:52:36,529 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-18 14:52:36,530 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-18 14:52:36,530 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-18 14:52:36,531 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-18 14:52:36,531 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-18 14:52:36,532 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-18 14:52:36,532 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-18 14:52:36,532 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-18 14:52:36,533 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-18 14:52:36,533 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-18 14:52:36,534 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-11-18 14:52:36,543 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-18 14:52:36,543 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-18 14:52:36,544 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-18 14:52:36,544 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-18 14:52:36,544 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-18 14:52:36,544 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Explicit value domain=true [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Octagon Domain=false [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-18 14:52:36,545 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-18 14:52:36,546 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-18 14:52:36,546 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-11-18 14:52:36,546 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-18 14:52:36,546 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-18 14:52:36,546 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-18 14:52:36,547 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-18 14:52:36,548 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-18 14:52:36,548 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-18 14:52:36,548 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-18 14:52:36,549 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-18 14:52:36,549 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-18 14:52:36,549 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-18 14:52:36,549 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-18 14:52:36,549 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_9580d6e2-c5ef-460e-8416-d0d6f1454da1/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 -> 9a661b9ed427d2e9174ef6e6cb1f5d6d0ab8d9e2 [2018-11-18 14:52:36,575 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-18 14:52:36,584 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-18 14:52:36,587 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-18 14:52:36,588 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-18 14:52:36,588 INFO L276 PluginConnector]: CDTParser initialized [2018-11-18 14:52:36,589 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-18 14:52:36,625 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/data/6cf79ba45/7f4ff53219c24e13bfd44a69c5c557e6/FLAGdcc1d18da [2018-11-18 14:52:37,030 INFO L307 CDTParser]: Found 1 translation units. [2018-11-18 14:52:37,031 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/sv-benchmarks/c/termination-crafted-lit/CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-18 14:52:37,035 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/data/6cf79ba45/7f4ff53219c24e13bfd44a69c5c557e6/FLAGdcc1d18da [2018-11-18 14:52:37,044 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/data/6cf79ba45/7f4ff53219c24e13bfd44a69c5c557e6 [2018-11-18 14:52:37,046 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-18 14:52:37,047 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-18 14:52:37,047 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:37,047 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-18 14:52:37,049 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-18 14:52:37,050 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,051 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@562934e9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37, skipping insertion in model container [2018-11-18 14:52:37,051 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,057 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-18 14:52:37,067 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-18 14:52:37,170 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:37,172 INFO L191 MainTranslator]: Completed pre-run [2018-11-18 14:52:37,180 INFO L201 PostProcessor]: Analyzing one entry point: main [2018-11-18 14:52:37,187 INFO L195 MainTranslator]: Completed translation [2018-11-18 14:52:37,187 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37 WrapperNode [2018-11-18 14:52:37,187 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-18 14:52:37,188 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-18 14:52:37,188 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-18 14:52:37,188 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-18 14:52:37,193 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,195 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,199 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-18 14:52:37,199 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-18 14:52:37,199 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-18 14:52:37,199 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-18 14:52:37,204 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,204 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,205 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,205 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,207 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,210 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... [2018-11-18 14:52:37,211 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-18 14:52:37,211 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-18 14:52:37,211 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-18 14:52:37,211 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-18 14:52:37,212 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/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 14:52:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-18 14:52:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-18 14:52:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-18 14:52:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-18 14:52:37,284 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-18 14:52:37,284 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-18 14:52:37,371 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-18 14:52:37,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:37 BoogieIcfgContainer [2018-11-18 14:52:37,371 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-18 14:52:37,372 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-18 14:52:37,372 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-18 14:52:37,373 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-18 14:52:37,373 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 18.11 02:52:37" (1/3) ... [2018-11-18 14:52:37,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bf9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:37, skipping insertion in model container [2018-11-18 14:52:37,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 18.11 02:52:37" (2/3) ... [2018-11-18 14:52:37,374 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@691bf9e2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.11 02:52:37, skipping insertion in model container [2018-11-18 14:52:37,374 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:37" (3/3) ... [2018-11-18 14:52:37,375 INFO L112 eAbstractionObserver]: Analyzing ICFG CookSeeZuleger-TACAS2013-Fig8a-modified_true-termination_true-no-overflow.c [2018-11-18 14:52:37,380 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-18 14:52:37,385 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-11-18 14:52:37,396 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-11-18 14:52:37,420 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-18 14:52:37,420 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-18 14:52:37,420 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-18 14:52:37,421 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-18 14:52:37,421 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-18 14:52:37,421 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-18 14:52:37,421 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-18 14:52:37,421 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-18 14:52:37,433 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-11-18 14:52:37,437 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:52:37,437 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:37,438 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:37,440 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:52:37,444 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:37,444 INFO L82 PathProgramCache]: Analyzing trace with hash 512030507, now seen corresponding path program 1 times [2018-11-18 14:52:37,446 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:52:37,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,486 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:37,486 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,486 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:52:37,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:37,536 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 14:52:37,538 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:37,538 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:37,538 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:52:37,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:52:37,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:52:37,551 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:52:37,553 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 3 states. [2018-11-18 14:52:37,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:37,623 INFO L93 Difference]: Finished difference Result 37 states and 42 transitions. [2018-11-18 14:52:37,623 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:52:37,624 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-11-18 14:52:37,624 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:37,631 INFO L225 Difference]: With dead ends: 37 [2018-11-18 14:52:37,631 INFO L226 Difference]: Without dead ends: 23 [2018-11-18 14:52:37,633 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 14:52:37,647 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-11-18 14:52:37,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 21. [2018-11-18 14:52:37,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-11-18 14:52:37,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 24 transitions. [2018-11-18 14:52:37,662 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 24 transitions. Word has length 9 [2018-11-18 14:52:37,662 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:37,662 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 24 transitions. [2018-11-18 14:52:37,662 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:52:37,662 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 24 transitions. [2018-11-18 14:52:37,662 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-11-18 14:52:37,663 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:37,663 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:37,663 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:52:37,663 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:37,663 INFO L82 PathProgramCache]: Analyzing trace with hash 512030699, now seen corresponding path program 1 times [2018-11-18 14:52:37,663 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:52:37,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,665 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:37,665 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,665 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:52:37,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:37,731 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 14:52:37,732 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:37,732 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-18 14:52:37,732 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:52:37,733 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-18 14:52:37,733 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-18 14:52:37,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2018-11-18 14:52:37,733 INFO L87 Difference]: Start difference. First operand 21 states and 24 transitions. Second operand 5 states. [2018-11-18 14:52:37,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:37,806 INFO L93 Difference]: Finished difference Result 21 states and 24 transitions. [2018-11-18 14:52:37,806 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-11-18 14:52:37,806 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 9 [2018-11-18 14:52:37,806 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:37,807 INFO L225 Difference]: With dead ends: 21 [2018-11-18 14:52:37,807 INFO L226 Difference]: Without dead ends: 20 [2018-11-18 14:52:37,807 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2018-11-18 14:52:37,807 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-11-18 14:52:37,809 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-11-18 14:52:37,809 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-11-18 14:52:37,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 23 transitions. [2018-11-18 14:52:37,809 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 23 transitions. Word has length 9 [2018-11-18 14:52:37,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:37,810 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 23 transitions. [2018-11-18 14:52:37,810 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-18 14:52:37,810 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 23 transitions. [2018-11-18 14:52:37,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:52:37,810 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:37,810 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:37,810 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:52:37,810 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:37,810 INFO L82 PathProgramCache]: Analyzing trace with hash -1306923416, now seen corresponding path program 1 times [2018-11-18 14:52:37,811 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:52:37,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,812 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:37,812 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,812 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:52:37,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:37,841 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 14:52:37,841 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:37,841 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:52:37,842 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:52:37,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:52:37,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:52:37,842 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:52:37,843 INFO L87 Difference]: Start difference. First operand 20 states and 23 transitions. Second operand 4 states. [2018-11-18 14:52:37,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:37,877 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-11-18 14:52:37,878 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:52:37,878 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2018-11-18 14:52:37,878 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:37,878 INFO L225 Difference]: With dead ends: 20 [2018-11-18 14:52:37,878 INFO L226 Difference]: Without dead ends: 19 [2018-11-18 14:52:37,879 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 14:52:37,879 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2018-11-18 14:52:37,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2018-11-18 14:52:37,881 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 19 states. [2018-11-18 14:52:37,882 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 21 transitions. [2018-11-18 14:52:37,882 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 21 transitions. Word has length 10 [2018-11-18 14:52:37,882 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:37,882 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 21 transitions. [2018-11-18 14:52:37,882 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:52:37,882 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 21 transitions. [2018-11-18 14:52:37,883 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-11-18 14:52:37,883 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:37,883 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:37,883 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:52:37,883 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:37,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1306917458, now seen corresponding path program 1 times [2018-11-18 14:52:37,883 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:52:37,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,884 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:37,884 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,884 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:52:37,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:37,909 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 14:52:37,909 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:37,909 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-11-18 14:52:37,909 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:52:37,909 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-18 14:52:37,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-18 14:52:37,910 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-11-18 14:52:37,910 INFO L87 Difference]: Start difference. First operand 19 states and 21 transitions. Second operand 3 states. [2018-11-18 14:52:37,919 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:37,919 INFO L93 Difference]: Finished difference Result 19 states and 21 transitions. [2018-11-18 14:52:37,919 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-18 14:52:37,919 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2018-11-18 14:52:37,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:37,920 INFO L225 Difference]: With dead ends: 19 [2018-11-18 14:52:37,920 INFO L226 Difference]: Without dead ends: 18 [2018-11-18 14:52:37,920 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 14:52:37,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2018-11-18 14:52:37,922 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2018-11-18 14:52:37,922 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-11-18 14:52:37,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-11-18 14:52:37,923 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 10 [2018-11-18 14:52:37,923 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:37,923 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-11-18 14:52:37,923 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-18 14:52:37,923 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-11-18 14:52:37,923 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-11-18 14:52:37,923 INFO L367 BasicCegarLoop]: Found error trace [2018-11-18 14:52:37,924 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-18 14:52:37,924 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-11-18 14:52:37,924 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-18 14:52:37,924 INFO L82 PathProgramCache]: Analyzing trace with hash 1698000854, now seen corresponding path program 1 times [2018-11-18 14:52:37,924 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-18 14:52:37,925 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,925 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-18 14:52:37,926 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-18 14:52:37,926 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-18 14:52:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-18 14:52:37,943 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 3 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-18 14:52:37,944 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-18 14:52:37,944 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-11-18 14:52:37,944 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-18 14:52:37,944 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-18 14:52:37,944 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-18 14:52:37,944 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:52:37,944 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 4 states. [2018-11-18 14:52:37,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-18 14:52:37,963 INFO L93 Difference]: Finished difference Result 29 states and 34 transitions. [2018-11-18 14:52:37,963 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-18 14:52:37,964 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 14 [2018-11-18 14:52:37,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-18 14:52:37,964 INFO L225 Difference]: With dead ends: 29 [2018-11-18 14:52:37,964 INFO L226 Difference]: Without dead ends: 0 [2018-11-18 14:52:37,965 INFO L604 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-18 14:52:37,965 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-18 14:52:37,965 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-18 14:52:37,965 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-18 14:52:37,965 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-18 14:52:37,965 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-11-18 14:52:37,965 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-18 14:52:37,966 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-18 14:52:37,966 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-18 14:52:37,966 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-18 14:52:37,966 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-18 14:52:37,968 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-18 14:52:38,006 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-18 14:52:38,006 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 13 25) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point L21(line 21) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point L19(line 19) no Hoare annotation was computed. [2018-11-18 14:52:38,006 INFO L425 ceAbstractionStarter]: For program point L19-1(line 19) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point L17-1(lines 17 23) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point L17-3(lines 17 23) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 13 25) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 13 25) the Hoare annotation is: true [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point L18(lines 18 22) no Hoare annotation was computed. [2018-11-18 14:52:38,007 INFO L421 ceAbstractionStarter]: At program point L18-2(lines 17 23) the Hoare annotation is: (and (<= main_~x~0 2147483647) (<= 0 (+ main_~x~0 2147483648)) (<= 0 (+ main_~K~0 2147483648)) (<= main_~K~0 2147483647)) [2018-11-18 14:52:38,007 INFO L425 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 19) no Hoare annotation was computed. [2018-11-18 14:52:38,008 INFO L425 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 21) no Hoare annotation was computed. [2018-11-18 14:52:38,015 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.11 02:52:38 BoogieIcfgContainer [2018-11-18 14:52:38,015 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-18 14:52:38,016 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-18 14:52:38,016 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-18 14:52:38,016 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-18 14:52:38,016 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.11 02:52:37" (3/4) ... [2018-11-18 14:52:38,018 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-18 14:52:38,022 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-18 14:52:38,022 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-18 14:52:38,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-11-18 14:52:38,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-18 14:52:38,025 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-18 14:52:38,050 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_9580d6e2-c5ef-460e-8416-d0d6f1454da1/bin-2019/utaipan/witness.graphml [2018-11-18 14:52:38,050 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-18 14:52:38,051 INFO L168 Benchmark]: Toolchain (without parser) took 1004.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -72.0 MB). Peak memory consumption was 60.6 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,052 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:38,052 INFO L168 Benchmark]: CACSL2BoogieTranslator took 140.69 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,053 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.14 ms. Allocated memory is still 1.0 GB. Free memory is still 951.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-18 14:52:38,053 INFO L168 Benchmark]: Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,054 INFO L168 Benchmark]: RCFGBuilder took 159.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,054 INFO L168 Benchmark]: TraceAbstraction took 643.78 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: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,055 INFO L168 Benchmark]: Witness Printer took 34.69 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-18 14:52:38,057 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 982.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 140.69 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 11.14 ms. Allocated memory is still 1.0 GB. Free memory is still 951.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 11.80 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 945.7 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 159.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 945.7 MB in the beginning and 1.1 GB in the end (delta: -167.1 MB). Peak memory consumption was 14.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 643.78 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: 72.2 MB). Peak memory consumption was 72.2 MB. Max. memory is 11.5 GB. * Witness Printer took 34.69 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 21]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 19]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: ((x <= 2147483647 && 0 <= x + 2147483648) && 0 <= K + 2147483648) && K <= 2147483647 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 21 locations, 4 error locations. SAFE Result, 0.5s OverallTime, 5 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 39 SDtfs, 45 SDslu, 41 SDs, 0 SdLazy, 80 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 5 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 5 PreInvPairs, 7 NumberOfFragments, 21 HoareAnnotationTreeSize, 5 FomulaSimplifications, 26 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 30 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 52 NumberOfCodeBlocks, 52 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 47 ConstructedInterpolants, 0 QuantifiedInterpolants, 1261 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...