./Ultimate.py --spec ../../sv-benchmarks/c/properties/no-overflow.prp --file ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 635dfa2a Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c -s /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/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 7c08193784b646afd298f73ae6296b7af2e0cac1 ............................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-635dfa2 [2018-12-09 00:12:39,731 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-09 00:12:39,732 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-09 00:12:39,738 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-09 00:12:39,738 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-09 00:12:39,739 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-09 00:12:39,739 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-09 00:12:39,740 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-09 00:12:39,741 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-09 00:12:39,742 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-09 00:12:39,743 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-09 00:12:39,743 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-09 00:12:39,743 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-09 00:12:39,744 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-09 00:12:39,744 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-09 00:12:39,745 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-09 00:12:39,745 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-09 00:12:39,746 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-09 00:12:39,748 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-09 00:12:39,748 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-09 00:12:39,749 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-09 00:12:39,750 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-09 00:12:39,751 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-09 00:12:39,751 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-09 00:12:39,751 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-09 00:12:39,752 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-09 00:12:39,752 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-09 00:12:39,753 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-09 00:12:39,753 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-09 00:12:39,754 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-09 00:12:39,754 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-09 00:12:39,755 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-09 00:12:39,755 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-09 00:12:39,755 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-09 00:12:39,756 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-09 00:12:39,756 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-09 00:12:39,756 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/config/svcomp-Overflow-64bit-Taipan_Default.epf [2018-12-09 00:12:39,764 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-09 00:12:39,764 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-09 00:12:39,764 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-12-09 00:12:39,764 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * User list type=DISABLED [2018-12-09 00:12:39,765 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * Explicit value domain=true [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * Octagon Domain=false [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-12-09 00:12:39,765 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-12-09 00:12:39,766 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-12-09 00:12:39,766 INFO L133 SettingsManager]: * Interval Domain=false [2018-12-09 00:12:39,766 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-09 00:12:39,766 INFO L133 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2018-12-09 00:12:39,766 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-09 00:12:39,766 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * Check absence of signed integer overflows=true [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-09 00:12:39,767 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-09 00:12:39,767 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:39,768 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-09 00:12:39,768 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-12-09 00:12:39,769 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-09 00:12:39,769 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-09 00:12:39,769 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-12-09 00:12:39,769 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_b65486f7-aace-4bc0-9511-4cbc58a99f18/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 -> 7c08193784b646afd298f73ae6296b7af2e0cac1 [2018-12-09 00:12:39,787 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-09 00:12:39,794 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-09 00:12:39,796 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-09 00:12:39,797 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-09 00:12:39,797 INFO L276 PluginConnector]: CDTParser initialized [2018-12-09 00:12:39,797 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/../../sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 00:12:39,832 INFO L221 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/data/ea3737d2d/48b75827323446a8a1ef2c03456d9b05/FLAGe7988fc3a [2018-12-09 00:12:40,279 INFO L307 CDTParser]: Found 1 translation units. [2018-12-09 00:12:40,280 INFO L161 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/sv-benchmarks/c/termination-crafted-lit/BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 00:12:40,284 INFO L355 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/data/ea3737d2d/48b75827323446a8a1ef2c03456d9b05/FLAGe7988fc3a [2018-12-09 00:12:40,293 INFO L363 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/data/ea3737d2d/48b75827323446a8a1ef2c03456d9b05 [2018-12-09 00:12:40,295 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-09 00:12:40,296 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-09 00:12:40,296 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:40,296 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-09 00:12:40,299 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-09 00:12:40,299 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,301 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2817da2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40, skipping insertion in model container [2018-12-09 00:12:40,301 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,306 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-09 00:12:40,316 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-09 00:12:40,400 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:40,402 INFO L191 MainTranslator]: Completed pre-run [2018-12-09 00:12:40,411 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-12-09 00:12:40,418 INFO L195 MainTranslator]: Completed translation [2018-12-09 00:12:40,419 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40 WrapperNode [2018-12-09 00:12:40,419 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-09 00:12:40,419 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:40,419 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-09 00:12:40,419 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-09 00:12:40,424 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,427 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,430 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-09 00:12:40,431 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-09 00:12:40,431 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-09 00:12:40,431 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-09 00:12:40,436 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,436 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,436 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,436 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,438 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,440 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,441 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... [2018-12-09 00:12:40,441 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-09 00:12:40,442 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-09 00:12:40,442 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-09 00:12:40,442 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-09 00:12:40,442 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-09 00:12:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-12-09 00:12:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-12-09 00:12:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-09 00:12:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-09 00:12:40,504 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-12-09 00:12:40,504 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-12-09 00:12:40,585 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-09 00:12:40,585 INFO L280 CfgBuilder]: Removed 2 assue(true) statements. [2018-12-09 00:12:40,585 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:40 BoogieIcfgContainer [2018-12-09 00:12:40,585 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-09 00:12:40,586 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-09 00:12:40,586 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-09 00:12:40,588 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-09 00:12:40,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.12 12:12:40" (1/3) ... [2018-12-09 00:12:40,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7292bafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:40, skipping insertion in model container [2018-12-09 00:12:40,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.12 12:12:40" (2/3) ... [2018-12-09 00:12:40,588 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7292bafd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.12 12:12:40, skipping insertion in model container [2018-12-09 00:12:40,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:40" (3/3) ... [2018-12-09 00:12:40,589 INFO L112 eAbstractionObserver]: Analyzing ICFG BrockschmidtCookFuhs-CAV2013-Fig1_true-termination_true-no-overflow.c [2018-12-09 00:12:40,595 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-09 00:12:40,598 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 4 error locations. [2018-12-09 00:12:40,607 INFO L257 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2018-12-09 00:12:40,624 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-09 00:12:40,625 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-09 00:12:40,625 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-09 00:12:40,625 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-09 00:12:40,625 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-09 00:12:40,625 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-09 00:12:40,625 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-09 00:12:40,625 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-09 00:12:40,634 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2018-12-09 00:12:40,637 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2018-12-09 00:12:40,637 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:40,638 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:40,639 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:40,642 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:40,642 INFO L82 PathProgramCache]: Analyzing trace with hash -1374165426, now seen corresponding path program 1 times [2018-12-09 00:12:40,643 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:40,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,675 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:40,675 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,675 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:40,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:40,728 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:40,730 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:12:40,730 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:12:40,730 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:12:40,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:12:40,740 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:12:40,740 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:12:40,742 INFO L87 Difference]: Start difference. First operand 20 states. Second operand 4 states. [2018-12-09 00:12:40,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:40,804 INFO L93 Difference]: Finished difference Result 45 states and 58 transitions. [2018-12-09 00:12:40,804 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-09 00:12:40,805 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 8 [2018-12-09 00:12:40,805 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:40,810 INFO L225 Difference]: With dead ends: 45 [2018-12-09 00:12:40,810 INFO L226 Difference]: Without dead ends: 22 [2018-12-09 00:12:40,812 INFO L631 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 [2018-12-09 00:12:40,822 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-09 00:12:40,831 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 18. [2018-12-09 00:12:40,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2018-12-09 00:12:40,832 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 20 transitions. [2018-12-09 00:12:40,833 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 20 transitions. Word has length 8 [2018-12-09 00:12:40,833 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:40,833 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 20 transitions. [2018-12-09 00:12:40,833 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:12:40,833 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 20 transitions. [2018-12-09 00:12:40,834 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 00:12:40,834 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:40,834 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:40,834 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:40,834 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:40,835 INFO L82 PathProgramCache]: Analyzing trace with hash 350544817, now seen corresponding path program 1 times [2018-12-09 00:12:40,835 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:40,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,836 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:40,836 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,836 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:40,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:40,855 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:40,855 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:12:40,855 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:12:40,855 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:12:40,857 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:12:40,857 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:12:40,857 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:12:40,857 INFO L87 Difference]: Start difference. First operand 18 states and 20 transitions. Second operand 3 states. [2018-12-09 00:12:40,874 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:40,874 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-12-09 00:12:40,875 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:12:40,875 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 00:12:40,875 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:40,875 INFO L225 Difference]: With dead ends: 18 [2018-12-09 00:12:40,875 INFO L226 Difference]: Without dead ends: 17 [2018-12-09 00:12:40,876 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:12:40,876 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-09 00:12:40,877 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 17. [2018-12-09 00:12:40,877 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 00:12:40,878 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 19 transitions. [2018-12-09 00:12:40,878 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 19 transitions. Word has length 9 [2018-12-09 00:12:40,878 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:40,878 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 19 transitions. [2018-12-09 00:12:40,878 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:12:40,878 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 19 transitions. [2018-12-09 00:12:40,878 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2018-12-09 00:12:40,879 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:40,879 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:40,879 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:40,879 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:40,879 INFO L82 PathProgramCache]: Analyzing trace with hash 350546515, now seen corresponding path program 1 times [2018-12-09 00:12:40,879 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:40,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,880 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:40,880 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,880 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:40,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:40,895 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:40,895 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:12:40,895 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-09 00:12:40,895 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:12:40,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-12-09 00:12:40,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-12-09 00:12:40,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:12:40,896 INFO L87 Difference]: Start difference. First operand 17 states and 19 transitions. Second operand 3 states. [2018-12-09 00:12:40,904 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:40,904 INFO L93 Difference]: Finished difference Result 18 states and 20 transitions. [2018-12-09 00:12:40,905 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-12-09 00:12:40,905 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 9 [2018-12-09 00:12:40,905 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:40,905 INFO L225 Difference]: With dead ends: 18 [2018-12-09 00:12:40,905 INFO L226 Difference]: Without dead ends: 17 [2018-12-09 00:12:40,905 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2018-12-09 00:12:40,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17 states. [2018-12-09 00:12:40,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17 to 16. [2018-12-09 00:12:40,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2018-12-09 00:12:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 18 transitions. [2018-12-09 00:12:40,908 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 18 transitions. Word has length 9 [2018-12-09 00:12:40,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:40,908 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 18 transitions. [2018-12-09 00:12:40,908 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-12-09 00:12:40,908 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 18 transitions. [2018-12-09 00:12:40,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 00:12:40,908 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:40,908 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:40,908 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:40,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:40,909 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753438, now seen corresponding path program 1 times [2018-12-09 00:12:40,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:40,909 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,910 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:40,910 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,910 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:40,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:40,935 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-09 00:12:40,935 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-09 00:12:40,935 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-09 00:12:40,935 INFO L256 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-12-09 00:12:40,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:12:40,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:12:40,935 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-09 00:12:40,936 INFO L87 Difference]: Start difference. First operand 16 states and 18 transitions. Second operand 4 states. [2018-12-09 00:12:40,954 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:40,955 INFO L93 Difference]: Finished difference Result 16 states and 18 transitions. [2018-12-09 00:12:40,955 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:12:40,955 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-09 00:12:40,955 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:40,955 INFO L225 Difference]: With dead ends: 16 [2018-12-09 00:12:40,955 INFO L226 Difference]: Without dead ends: 15 [2018-12-09 00:12:40,956 INFO L631 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 [2018-12-09 00:12:40,956 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2018-12-09 00:12:40,958 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 14. [2018-12-09 00:12:40,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-09 00:12:40,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2018-12-09 00:12:40,958 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 11 [2018-12-09 00:12:40,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:40,958 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2018-12-09 00:12:40,959 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:12:40,959 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2018-12-09 00:12:40,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-09 00:12:40,959 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:40,959 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:40,959 INFO L423 AbstractCegarLoop]: === Iteration 5 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:40,959 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:40,960 INFO L82 PathProgramCache]: Analyzing trace with hash 1867753493, now seen corresponding path program 1 times [2018-12-09 00:12:40,960 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,961 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:40,961 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:40,961 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:40,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:40,987 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:40,987 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:12:40,987 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:12:40,988 INFO L203 CegarAbsIntRunner]: Running AI on error trace of length 12 with the following transitions: [2018-12-09 00:12:40,989 INFO L205 CegarAbsIntRunner]: [0], [4], [13], [22], [23], [24], [26], [39], [40], [41] [2018-12-09 00:12:41,008 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, ExplicitValueDomain] [2018-12-09 00:12:41,008 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-12-09 00:12:41,089 INFO L263 AbstractInterpreter]: Some error location(s) were reachable [2018-12-09 00:12:41,090 INFO L272 AbstractInterpreter]: Visited 10 different actions 22 times. Merged at 3 different actions 9 times. Never widened. Performed 78 root evaluator evaluations with a maximum evaluation depth of 3. Performed 78 inverse root evaluator evaluations with a maximum inverse evaluation depth of 3. Found 2 fixpoints after 2 different actions. Largest state had 6 variables. [2018-12-09 00:12:41,094 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:41,095 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: Unknown [2018-12-09 00:12:41,095 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:12:41,095 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:12:41,101 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:41,102 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-12-09 00:12:41,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:41,112 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:12:41,122 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:41,123 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:12:41,140 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:41,154 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:12:41,155 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 5 [2018-12-09 00:12:41,155 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:12:41,155 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-09 00:12:41,155 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-09 00:12:41,155 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:12:41,155 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 4 states. [2018-12-09 00:12:41,171 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:41,171 INFO L93 Difference]: Finished difference Result 25 states and 28 transitions. [2018-12-09 00:12:41,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-09 00:12:41,171 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2018-12-09 00:12:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:41,171 INFO L225 Difference]: With dead ends: 25 [2018-12-09 00:12:41,172 INFO L226 Difference]: Without dead ends: 24 [2018-12-09 00:12:41,172 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2018-12-09 00:12:41,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-12-09 00:12:41,174 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 17. [2018-12-09 00:12:41,174 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17 states. [2018-12-09 00:12:41,174 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17 states to 17 states and 20 transitions. [2018-12-09 00:12:41,174 INFO L78 Accepts]: Start accepts. Automaton has 17 states and 20 transitions. Word has length 11 [2018-12-09 00:12:41,174 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:41,174 INFO L480 AbstractCegarLoop]: Abstraction has 17 states and 20 transitions. [2018-12-09 00:12:41,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-09 00:12:41,175 INFO L276 IsEmpty]: Start isEmpty. Operand 17 states and 20 transitions. [2018-12-09 00:12:41,175 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2018-12-09 00:12:41,175 INFO L394 BasicCegarLoop]: Found error trace [2018-12-09 00:12:41,175 INFO L402 BasicCegarLoop]: trace histogram [3, 2, 2, 1, 1, 1, 1, 1, 1, 1] [2018-12-09 00:12:41,175 INFO L423 AbstractCegarLoop]: === Iteration 6 === [mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW, mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW]=== [2018-12-09 00:12:41,175 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-12-09 00:12:41,175 INFO L82 PathProgramCache]: Analyzing trace with hash 943045765, now seen corresponding path program 2 times [2018-12-09 00:12:41,175 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-12-09 00:12:41,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:41,176 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-09 00:12:41,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-09 00:12:41,176 INFO L286 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-12-09 00:12:41,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-09 00:12:41,195 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-09 00:12:41,195 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:12:41,196 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-12-09 00:12:41,196 INFO L187 CegarAbsIntRunner]: Skipping current iteration for AI because we have already analyzed this path program [2018-12-09 00:12:41,196 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-12-09 00:12:41,196 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-09 00:12:41,196 INFO L192 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-12-09 00:12:41,202 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST2 [2018-12-09 00:12:41,202 INFO L286 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder OUTSIDE_LOOP_FIRST2 (IT: FPandBP) [2018-12-09 00:12:41,207 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 1 check-sat command(s) [2018-12-09 00:12:41,208 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-09 00:12:41,208 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-09 00:12:41,225 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 00:12:41,225 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-12-09 00:12:41,236 INFO L134 CoverageAnalysis]: Checked inductivity of 7 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2018-12-09 00:12:41,251 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 3 imperfect interpolant sequences. [2018-12-09 00:12:41,251 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 7 [2018-12-09 00:12:41,251 INFO L249 anRefinementStrategy]: Using the first two imperfect interpolant sequences [2018-12-09 00:12:41,251 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-12-09 00:12:41,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-12-09 00:12:41,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-12-09 00:12:41,252 INFO L87 Difference]: Start difference. First operand 17 states and 20 transitions. Second operand 8 states. [2018-12-09 00:12:41,346 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-09 00:12:41,346 INFO L93 Difference]: Finished difference Result 34 states and 40 transitions. [2018-12-09 00:12:41,346 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2018-12-09 00:12:41,346 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 14 [2018-12-09 00:12:41,346 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-09 00:12:41,346 INFO L225 Difference]: With dead ends: 34 [2018-12-09 00:12:41,346 INFO L226 Difference]: Without dead ends: 0 [2018-12-09 00:12:41,347 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=97, Invalid=175, Unknown=0, NotChecked=0, Total=272 [2018-12-09 00:12:41,347 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-09 00:12:41,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-09 00:12:41,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-09 00:12:41,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-09 00:12:41,347 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 14 [2018-12-09 00:12:41,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-09 00:12:41,347 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-09 00:12:41,347 INFO L481 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-12-09 00:12:41,347 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-09 00:12:41,348 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-09 00:12:41,351 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-09 00:12:41,378 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-12-09 00:12:41,378 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:12:41,378 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-09 00:12:41,378 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-12-09 00:12:41,378 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-12-09 00:12:41,378 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-09 00:12:41,378 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 14 27) no Hoare annotation was computed. [2018-12-09 00:12:41,378 INFO L448 ceAbstractionStarter]: For program point mainErr1ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L444 ceAbstractionStarter]: At program point L21-2(lines 21 23) the Hoare annotation is: (and (<= 0 main_~j~0) (<= main_~n~0 2147483647) (<= 0 (+ main_~i~0 2147483648)) (<= main_~i~0 2147483646)) [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point L21-3(lines 21 23) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 25) the Hoare annotation is: (and (<= main_~n~0 2147483647) (<= 0 (+ main_~i~0 2147483648))) [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 19 25) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point mainErr3ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 14 27) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 14 27) the Hoare annotation is: true [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONINTEGER_OVERFLOW(line 22) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point L24(line 24) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point L22-1(line 22) no Hoare annotation was computed. [2018-12-09 00:12:41,379 INFO L448 ceAbstractionStarter]: For program point mainErr2ASSERT_VIOLATIONINTEGER_OVERFLOW(line 24) no Hoare annotation was computed. [2018-12-09 00:12:41,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 09.12 12:12:41 BoogieIcfgContainer [2018-12-09 00:12:41,387 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-09 00:12:41,387 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-09 00:12:41,387 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-09 00:12:41,387 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-09 00:12:41,388 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 09.12 12:12:40" (3/4) ... [2018-12-09 00:12:41,390 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-09 00:12:41,393 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-12-09 00:12:41,394 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-12-09 00:12:41,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2018-12-09 00:12:41,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-09 00:12:41,396 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-12-09 00:12:41,421 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b65486f7-aace-4bc0-9511-4cbc58a99f18/bin-2019/utaipan/witness.graphml [2018-12-09 00:12:41,422 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-09 00:12:41,422 INFO L168 Benchmark]: Toolchain (without parser) took 1126.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 962.4 MB in the beginning and 986.3 MB in the end (delta: -23.9 MB). Peak memory consumption was 107.2 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:41,423 INFO L168 Benchmark]: CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:41,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 122.65 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:41,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 11.18 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:41,424 INFO L168 Benchmark]: Boogie Preprocessor took 10.92 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:41,424 INFO L168 Benchmark]: RCFGBuilder took 143.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:41,424 INFO L168 Benchmark]: TraceAbstraction took 801.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. [2018-12-09 00:12:41,424 INFO L168 Benchmark]: Witness Printer took 34.46 ms. Allocated memory is still 1.2 GB. Free memory is still 986.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-09 00:12:41,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.11 ms. Allocated memory is still 1.0 GB. Free memory is still 982.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 122.65 ms. Allocated memory is still 1.0 GB. Free memory was 962.4 MB in the beginning and 951.7 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 11.18 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 10.92 ms. Allocated memory is still 1.0 GB. Free memory is still 951.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 143.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 131.1 MB). Free memory was 951.7 MB in the beginning and 1.1 GB in the end (delta: -159.5 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 801.20 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 986.3 MB in the end (delta: 124.9 MB). Peak memory consumption was 124.9 MB. Max. memory is 11.5 GB. * Witness Printer took 34.46 ms. Allocated memory is still 1.2 GB. Free memory is still 986.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 24]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - PositiveResult [Line: 22]: integer overflow can never occur For all program executions holds that integer overflow can never occur at this location - AllSpecificationsHoldResult: All specifications hold 4 specifications checked. All of them hold - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: n <= 2147483647 && 0 <= i + 2147483648 - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: ((0 <= j && n <= 2147483647) && 0 <= i + 2147483648) && i <= 2147483646 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 4 error locations. SAFE Result, 0.7s OverallTime, 6 OverallIterations, 3 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 60 SDtfs, 90 SDslu, 66 SDs, 0 SdLazy, 95 SolverSat, 29 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 47 SyntacticMatches, 2 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=20occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 6 MinimizatonAttempts, 13 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 6 LocationsWithAnnotation, 6 PreInvPairs, 16 NumberOfFragments, 28 HoareAnnotationTreeSize, 6 FomulaSimplifications, 417 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 6 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 87 NumberOfCodeBlocks, 81 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 102 ConstructedInterpolants, 0 QuantifiedInterpolants, 2398 SizeOfPredicates, 5 NumberOfNonLiveVariables, 59 ConjunctsInSsa, 8 ConjunctsInUnsatCore, 10 InterpolantComputations, 4 PerfectInterpolantSequences, 11/28 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...