./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 1dbac8bc Calling Ultimate with: java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i -s /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 ..................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-27 00:18:40,761 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-27 00:18:40,762 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-27 00:18:40,772 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-27 00:18:40,772 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-27 00:18:40,773 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-27 00:18:40,774 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-27 00:18:40,776 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-27 00:18:40,777 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-27 00:18:40,778 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-27 00:18:40,779 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-27 00:18:40,779 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-27 00:18:40,780 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-27 00:18:40,781 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-27 00:18:40,781 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-27 00:18:40,783 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-27 00:18:40,783 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-27 00:18:40,785 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-27 00:18:40,786 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-27 00:18:40,788 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-27 00:18:40,789 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-27 00:18:40,790 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-27 00:18:40,792 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-27 00:18:40,792 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-27 00:18:40,792 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-27 00:18:40,793 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-27 00:18:40,794 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-27 00:18:40,795 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-27 00:18:40,796 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-27 00:18:40,797 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-27 00:18:40,797 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-27 00:18:40,797 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-27 00:18:40,798 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-27 00:18:40,798 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-27 00:18:40,799 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-27 00:18:40,800 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-27 00:18:40,800 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-27 00:18:40,811 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-27 00:18:40,812 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-27 00:18:40,812 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-27 00:18:40,812 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-27 00:18:40,813 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-27 00:18:40,813 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-27 00:18:40,814 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-27 00:18:40,814 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-27 00:18:40,815 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-27 00:18:40,815 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-27 00:18:40,816 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-27 00:18:40,817 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-27 00:18:40,817 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-27 00:18:40,817 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-27 00:18:40,817 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-27 00:18:40,817 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-27 00:18:40,817 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-27 00:18:40,817 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-27 00:18:40,818 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-27 00:18:40,818 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-27 00:18:40,818 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-27 00:18:40,818 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-27 00:18:40,818 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-27 00:18:40,818 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_b1e08021-4430-4078-a0a7-6ae7fa2eb004/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 ! call(__VERIFIER_error())) ) 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 -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 [2018-10-27 00:18:40,859 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-27 00:18:40,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-27 00:18:40,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-27 00:18:40,874 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-27 00:18:40,875 INFO L276 PluginConnector]: CDTParser initialized [2018-10-27 00:18:40,875 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/../../sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-27 00:18:40,923 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/data/71bd125ef/c100afbbd6394dbfbe97e5818af2627f/FLAGf77ca9c44 [2018-10-27 00:18:41,302 INFO L298 CDTParser]: Found 1 translation units. [2018-10-27 00:18:41,303 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/sv-benchmarks/c/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-27 00:18:41,309 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/data/71bd125ef/c100afbbd6394dbfbe97e5818af2627f/FLAGf77ca9c44 [2018-10-27 00:18:41,324 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/data/71bd125ef/c100afbbd6394dbfbe97e5818af2627f [2018-10-27 00:18:41,328 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-27 00:18:41,329 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-27 00:18:41,331 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-27 00:18:41,331 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-27 00:18:41,335 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-27 00:18:41,336 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,339 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1dd6758f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41, skipping insertion in model container [2018-10-27 00:18:41,340 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,351 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-27 00:18:41,371 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-27 00:18:41,515 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:18:41,518 INFO L189 MainTranslator]: Completed pre-run [2018-10-27 00:18:41,534 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-27 00:18:41,548 INFO L193 MainTranslator]: Completed translation [2018-10-27 00:18:41,549 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41 WrapperNode [2018-10-27 00:18:41,549 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-27 00:18:41,550 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-27 00:18:41,550 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-27 00:18:41,550 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-27 00:18:41,560 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,565 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,571 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-27 00:18:41,571 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-27 00:18:41,572 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-27 00:18:41,572 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-27 00:18:41,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,581 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,582 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,582 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,585 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,590 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,591 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... [2018-10-27 00:18:41,593 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-27 00:18:41,593 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-27 00:18:41,593 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-27 00:18:41,594 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-27 00:18:41,594 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/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 [2018-10-27 00:18:41,713 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-27 00:18:41,714 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-27 00:18:41,714 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-27 00:18:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-27 00:18:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-27 00:18:41,715 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-27 00:18:41,715 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-27 00:18:41,716 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-27 00:18:42,130 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-27 00:18:42,130 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:18:42 BoogieIcfgContainer [2018-10-27 00:18:42,130 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-27 00:18:42,131 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-27 00:18:42,131 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-27 00:18:42,134 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-27 00:18:42,134 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.10 12:18:41" (1/3) ... [2018-10-27 00:18:42,135 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7aefbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:18:42, skipping insertion in model container [2018-10-27 00:18:42,135 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.10 12:18:41" (2/3) ... [2018-10-27 00:18:42,136 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@e7aefbe and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.10 12:18:42, skipping insertion in model container [2018-10-27 00:18:42,136 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:18:42" (3/3) ... [2018-10-27 00:18:42,138 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-10-27 00:18:42,148 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-27 00:18:42,156 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-27 00:18:42,174 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-27 00:18:42,207 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-27 00:18:42,207 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-27 00:18:42,208 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-27 00:18:42,208 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-27 00:18:42,208 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-27 00:18:42,208 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-27 00:18:42,208 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-27 00:18:42,208 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-27 00:18:42,226 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states. [2018-10-27 00:18:42,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-27 00:18:42,232 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:18:42,233 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:18:42,236 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:18:42,241 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:18:42,242 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-10-27 00:18:42,244 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:18:42,297 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:42,298 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:18:42,298 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:42,298 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:18:42,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:18:42,653 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:18:42,656 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-27 00:18:42,656 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-27 00:18:42,656 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:18:42,660 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-27 00:18:42,670 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-27 00:18:42,670 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-27 00:18:42,672 INFO L87 Difference]: Start difference. First operand 24 states. Second operand 5 states. [2018-10-27 00:18:42,851 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:18:42,851 INFO L93 Difference]: Finished difference Result 47 states and 59 transitions. [2018-10-27 00:18:42,852 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-27 00:18:42,853 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-27 00:18:42,854 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:18:42,862 INFO L225 Difference]: With dead ends: 47 [2018-10-27 00:18:42,862 INFO L226 Difference]: Without dead ends: 23 [2018-10-27 00:18:42,866 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-27 00:18:42,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-27 00:18:42,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-27 00:18:42,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-27 00:18:42,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-10-27 00:18:42,906 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2018-10-27 00:18:42,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:18:42,907 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-10-27 00:18:42,907 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-27 00:18:42,907 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-10-27 00:18:42,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-27 00:18:42,908 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:18:42,908 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:18:42,909 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:18:42,909 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:18:42,909 INFO L82 PathProgramCache]: Analyzing trace with hash 842211255, now seen corresponding path program 1 times [2018-10-27 00:18:42,909 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:18:42,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:42,912 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:18:42,912 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:42,912 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:18:42,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:18:43,033 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-27 00:18:43,034 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:18:43,034 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:18:43,036 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-27 00:18:43,038 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [22], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53] [2018-10-27 00:18:43,081 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:18:43,081 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:18:43,216 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:18:43,218 INFO L272 AbstractInterpreter]: Visited 16 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-10-27 00:18:43,242 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:18:43,243 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:18:43,318 INFO L227 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 66.67% of their original sizes. [2018-10-27 00:18:43,318 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:18:43,676 INFO L415 sIntCurrentIteration]: We unified 17 AI predicates to 17 [2018-10-27 00:18:43,677 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:18:43,677 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:18:43,678 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-10-27 00:18:43,678 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:18:43,679 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-27 00:18:43,679 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-27 00:18:43,680 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-27 00:18:43,680 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 8 states. [2018-10-27 00:18:44,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:18:44,259 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2018-10-27 00:18:44,259 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-27 00:18:44,259 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-27 00:18:44,259 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:18:44,261 INFO L225 Difference]: With dead ends: 62 [2018-10-27 00:18:44,261 INFO L226 Difference]: Without dead ends: 44 [2018-10-27 00:18:44,263 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:18:44,263 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-27 00:18:44,277 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-10-27 00:18:44,277 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-27 00:18:44,279 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-10-27 00:18:44,279 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 18 [2018-10-27 00:18:44,279 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:18:44,280 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-10-27 00:18:44,280 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-27 00:18:44,280 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-10-27 00:18:44,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-27 00:18:44,281 INFO L367 BasicCegarLoop]: Found error trace [2018-10-27 00:18:44,281 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-27 00:18:44,281 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-27 00:18:44,281 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:18:44,282 INFO L82 PathProgramCache]: Analyzing trace with hash -1000709048, now seen corresponding path program 1 times [2018-10-27 00:18:44,282 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-27 00:18:44,284 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:44,285 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-27 00:18:44,285 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-27 00:18:44,285 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-27 00:18:44,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-27 00:18:44,354 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-27 00:18:44,355 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-27 00:18:44,355 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-27 00:18:44,355 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-10-27 00:18:44,355 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [20], [22], [26], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53], [54] [2018-10-27 00:18:44,357 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-27 00:18:44,357 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-27 00:18:44,661 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-27 00:18:44,664 INFO L272 AbstractInterpreter]: Visited 20 different actions 258 times. Merged at 9 different actions 90 times. Widened at 3 different actions 13 times. Found 11 fixpoints after 4 different actions. Largest state had 8 variables. [2018-10-27 00:18:44,708 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-27 00:18:44,708 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-27 00:18:44,773 INFO L227 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 71.79% of their original sizes. [2018-10-27 00:18:44,774 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-27 00:18:45,051 INFO L415 sIntCurrentIteration]: We unified 35 AI predicates to 35 [2018-10-27 00:18:45,051 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-27 00:18:45,052 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-27 00:18:45,052 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-27 00:18:45,052 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-27 00:18:45,052 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-27 00:18:45,053 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-27 00:18:45,053 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-27 00:18:45,053 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 9 states. [2018-10-27 00:18:45,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-27 00:18:45,409 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2018-10-27 00:18:45,409 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-27 00:18:45,409 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-10-27 00:18:45,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-27 00:18:45,410 INFO L225 Difference]: With dead ends: 58 [2018-10-27 00:18:45,410 INFO L226 Difference]: Without dead ends: 0 [2018-10-27 00:18:45,412 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-27 00:18:45,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-27 00:18:45,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-27 00:18:45,413 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-27 00:18:45,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-27 00:18:45,413 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-10-27 00:18:45,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-27 00:18:45,413 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-27 00:18:45,414 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-27 00:18:45,414 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-27 00:18:45,414 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-27 00:18:45,424 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-27 00:18:45,941 WARN L179 SmtUtils]: Spent 400.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 18 [2018-10-27 00:18:46,065 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-27 00:18:46,065 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:18:46,065 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-27 00:18:46,066 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-27 00:18:46,066 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-27 00:18:46,066 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-27 00:18:46,066 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-10-27 00:18:46,066 INFO L421 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-27 00:18:46,067 INFO L421 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-27 00:18:46,067 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-10-27 00:18:46,067 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-10-27 00:18:46,067 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-10-27 00:18:46,067 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= (* 2 main_~nlen~0) 4294967294) (<= 0 .cse0) (<= .cse0 4294967294) (<= main_~i~0 (+ main_~nlen~0 2147483648)))) [2018-10-27 00:18:46,067 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-10-27 00:18:46,068 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-10-27 00:18:46,068 INFO L425 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-10-27 00:18:46,068 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-10-27 00:18:46,068 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= .cse0 16) (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-27 00:18:46,068 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-27 00:18:46,068 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-27 00:18:46,069 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-27 00:18:46,069 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-27 00:18:46,069 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-27 00:18:46,069 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-27 00:18:46,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.10 12:18:46 BoogieIcfgContainer [2018-10-27 00:18:46,081 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-27 00:18:46,082 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-27 00:18:46,082 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-27 00:18:46,082 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-27 00:18:46,083 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.10 12:18:42" (3/4) ... [2018-10-27 00:18:46,089 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-27 00:18:46,095 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-27 00:18:46,096 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-27 00:18:46,096 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-27 00:18:46,100 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-10-27 00:18:46,101 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-27 00:18:46,101 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-10-27 00:18:46,147 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_b1e08021-4430-4078-a0a7-6ae7fa2eb004/bin-2019/utaipan/witness.graphml [2018-10-27 00:18:46,147 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-27 00:18:46,148 INFO L168 Benchmark]: Toolchain (without parser) took 4819.93 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 957.0 MB in the beginning and 953.3 MB in the end (delta: 3.6 MB). Peak memory consumption was 152.5 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,149 INFO L168 Benchmark]: CDTParser took 0.22 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. [2018-10-27 00:18:46,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 218.77 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 946.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,150 INFO L168 Benchmark]: Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 1.0 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-27 00:18:46,151 INFO L168 Benchmark]: Boogie Preprocessor took 21.45 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,151 INFO L168 Benchmark]: RCFGBuilder took 537.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,152 INFO L168 Benchmark]: TraceAbstraction took 3950.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.0 MB in the end (delta: 181.1 MB). Peak memory consumption was 181.1 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,153 INFO L168 Benchmark]: Witness Printer took 65.79 ms. Allocated memory is still 1.2 GB. Free memory was 956.0 MB in the beginning and 953.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-27 00:18:46,156 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 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 218.77 ms. Allocated memory is still 1.0 GB. Free memory was 957.0 MB in the beginning and 946.1 MB in the end (delta: 10.9 MB). Peak memory consumption was 10.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 21.11 ms. Allocated memory is still 1.0 GB. Free memory is still 946.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.45 ms. Allocated memory is still 1.0 GB. Free memory was 946.1 MB in the beginning and 943.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 537.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.9 MB). Free memory was 943.4 MB in the beginning and 1.1 GB in the end (delta: -193.7 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3950.25 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 956.0 MB in the end (delta: 181.1 MB). Peak memory consumption was 181.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.79 ms. Allocated memory is still 1.2 GB. Free memory was 956.0 MB in the beginning and 953.3 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((2 * j <= 16 && 0 <= 2 * j) && i + 1 <= nlen) && 2 * nlen <= 4294967294) && 0 <= 2 * i - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((2 * nlen <= 4294967294 && 0 <= 2 * i) && 2 * i <= 4294967294) && i <= nlen + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 47 SDtfs, 43 SDslu, 163 SDs, 0 SdLazy, 30 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9134615384615384 AbsIntWeakeningRatio, 0.5192307692307693 AbsIntAvgWeakeningVarsNumRemoved, 3.1923076923076925 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 18 PreInvPairs, 28 NumberOfFragments, 104 HoareAnnotationTreeSize, 18 FomulaSimplifications, 784 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 27/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...