./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.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_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/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 01486f6e66b9ba9b2eb7bfd9adbc300644015cbb ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-11-10 04:37:39,719 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-10 04:37:39,720 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-10 04:37:39,727 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-10 04:37:39,727 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-10 04:37:39,728 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-10 04:37:39,729 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-10 04:37:39,730 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-10 04:37:39,731 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-10 04:37:39,731 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-10 04:37:39,732 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-10 04:37:39,732 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-10 04:37:39,733 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-10 04:37:39,734 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-10 04:37:39,734 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-10 04:37:39,734 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-10 04:37:39,735 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-10 04:37:39,736 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-10 04:37:39,737 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-10 04:37:39,738 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-10 04:37:39,739 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-10 04:37:39,739 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-10 04:37:39,740 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-10 04:37:39,741 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-10 04:37:39,741 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-10 04:37:39,741 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-10 04:37:39,742 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-10 04:37:39,743 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-10 04:37:39,743 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-10 04:37:39,744 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-10 04:37:39,744 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-10 04:37:39,745 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-10 04:37:39,745 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-10 04:37:39,745 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-10 04:37:39,746 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-10 04:37:39,746 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-10 04:37:39,746 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-11-10 04:37:39,757 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-10 04:37:39,757 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-10 04:37:39,758 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-10 04:37:39,758 INFO L133 SettingsManager]: * User list type=DISABLED [2018-11-10 04:37:39,758 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-11-10 04:37:39,758 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-11-10 04:37:39,758 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-11-10 04:37:39,758 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-11-10 04:37:39,758 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-11-10 04:37:39,759 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-11-10 04:37:39,759 INFO L133 SettingsManager]: * Interval Domain=false [2018-11-10 04:37:39,759 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-10 04:37:39,759 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-10 04:37:39,759 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-10 04:37:39,760 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-10 04:37:39,761 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:37:39,761 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-10 04:37:39,761 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-10 04:37:39,762 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-11-10 04:37:39,762 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-10 04:37:39,762 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-10 04:37:39,762 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-11-10 04:37:39,762 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_7398c56d-ca51-4297-82aa-bc976344e8c5/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 -> 01486f6e66b9ba9b2eb7bfd9adbc300644015cbb [2018-11-10 04:37:39,786 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-10 04:37:39,795 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-10 04:37:39,798 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-10 04:37:39,799 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-10 04:37:39,799 INFO L276 PluginConnector]: CDTParser initialized [2018-11-10 04:37:39,800 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/../../sv-benchmarks/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i [2018-11-10 04:37:39,848 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/data/708dd0410/fafd1c68d0b34db3a8c17cdf7bfd3b4a/FLAGfc89ae297 [2018-11-10 04:37:40,176 INFO L298 CDTParser]: Found 1 translation units. [2018-11-10 04:37:40,176 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/sv-benchmarks/c/array-multidimensional/init-non-constant-3-u_true-unreach-call.i [2018-11-10 04:37:40,182 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/data/708dd0410/fafd1c68d0b34db3a8c17cdf7bfd3b4a/FLAGfc89ae297 [2018-11-10 04:37:40,194 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/data/708dd0410/fafd1c68d0b34db3a8c17cdf7bfd3b4a [2018-11-10 04:37:40,197 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-10 04:37:40,198 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-10 04:37:40,199 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-10 04:37:40,199 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-10 04:37:40,202 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-10 04:37:40,203 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,205 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7ce791db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40, skipping insertion in model container [2018-11-10 04:37:40,205 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,214 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-10 04:37:40,231 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-11-10 04:37:40,359 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:37:40,361 INFO L189 MainTranslator]: Completed pre-run [2018-11-10 04:37:40,374 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-11-10 04:37:40,386 INFO L193 MainTranslator]: Completed translation [2018-11-10 04:37:40,386 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40 WrapperNode [2018-11-10 04:37:40,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-10 04:37:40,387 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-10 04:37:40,387 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-10 04:37:40,387 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-10 04:37:40,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,399 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,411 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-10 04:37:40,412 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-10 04:37:40,412 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-10 04:37:40,412 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-10 04:37:40,418 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,418 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,419 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,419 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,422 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,426 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,428 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... [2018-11-10 04:37:40,429 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-10 04:37:40,430 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-10 04:37:40,430 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-10 04:37:40,430 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-10 04:37:40,431 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-10 04:37:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-10 04:37:40,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-10 04:37:40,510 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-10 04:37:40,510 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-10 04:37:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-10 04:37:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-10 04:37:40,511 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-11-10 04:37:40,511 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-11-10 04:37:40,667 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-10 04:37:40,668 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:37:40 BoogieIcfgContainer [2018-11-10 04:37:40,668 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-10 04:37:40,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-10 04:37:40,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-10 04:37:40,671 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-10 04:37:40,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 10.11 04:37:40" (1/3) ... [2018-11-10 04:37:40,672 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dae31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:37:40, skipping insertion in model container [2018-11-10 04:37:40,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 10.11 04:37:40" (2/3) ... [2018-11-10 04:37:40,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@63dae31e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.11 04:37:40, skipping insertion in model container [2018-11-10 04:37:40,673 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:37:40" (3/3) ... [2018-11-10 04:37:40,675 INFO L112 eAbstractionObserver]: Analyzing ICFG init-non-constant-3-u_true-unreach-call.i [2018-11-10 04:37:40,682 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-10 04:37:40,689 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-10 04:37:40,698 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-10 04:37:40,719 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-10 04:37:40,719 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-10 04:37:40,719 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-10 04:37:40,719 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-10 04:37:40,719 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-10 04:37:40,720 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-10 04:37:40,720 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-10 04:37:40,720 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-10 04:37:40,733 INFO L276 IsEmpty]: Start isEmpty. Operand 36 states. [2018-11-10 04:37:40,737 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-11-10 04:37:40,738 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:37:40,738 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:37:40,740 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:37:40,745 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:40,745 INFO L82 PathProgramCache]: Analyzing trace with hash 142166787, now seen corresponding path program 1 times [2018-11-10 04:37:40,747 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:37:40,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:40,785 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:40,785 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:40,785 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:37:40,807 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:37:40,807 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:37:40,807 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:37:40,813 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:40,813 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:37:40,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:40,841 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 04:37:40,842 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 04:37:40,842 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:37:40,842 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/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 [2018-11-10 04:37:40,848 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:40,848 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 04:37:40,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:40,876 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:37:40,888 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:37:40,888 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:37:40,904 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:37:40,921 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:37:40,921 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2018-11-10 04:37:40,921 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:37:40,924 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-11-10 04:37:40,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-11-10 04:37:40,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:37:40,935 INFO L87 Difference]: Start difference. First operand 36 states. Second operand 2 states. [2018-11-10 04:37:40,950 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:37:40,950 INFO L93 Difference]: Finished difference Result 66 states and 91 transitions. [2018-11-10 04:37:40,950 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-11-10 04:37:40,951 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 18 [2018-11-10 04:37:40,951 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:37:40,955 INFO L225 Difference]: With dead ends: 66 [2018-11-10 04:37:40,956 INFO L226 Difference]: Without dead ends: 31 [2018-11-10 04:37:40,958 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-11-10 04:37:40,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2018-11-10 04:37:40,981 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2018-11-10 04:37:40,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31 states. [2018-11-10 04:37:40,983 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2018-11-10 04:37:40,984 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 18 [2018-11-10 04:37:40,984 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:37:40,984 INFO L481 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2018-11-10 04:37:40,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-11-10 04:37:40,985 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2018-11-10 04:37:40,985 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-11-10 04:37:40,985 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:37:40,985 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:37:40,986 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:37:40,986 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:40,986 INFO L82 PathProgramCache]: Analyzing trace with hash -914168140, now seen corresponding path program 1 times [2018-11-10 04:37:40,986 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:37:40,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:40,987 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:40,987 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:40,987 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:37:40,993 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:37:40,993 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:37:40,994 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:37:41,004 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,004 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:37:41,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:41,030 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-11-10 04:37:41,030 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-11-10 04:37:41,030 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-10 04:37:41,030 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-10 04:37:41,035 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,035 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-11-10 04:37:41,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:41,065 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-10 04:37:41,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:37:41,088 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-11-10 04:37:41,109 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-10 04:37:41,135 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:37:41,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-11-10 04:37:41,135 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:37:41,136 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-11-10 04:37:41,136 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-11-10 04:37:41,136 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:37:41,137 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand 3 states. [2018-11-10 04:37:41,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:37:41,171 INFO L93 Difference]: Finished difference Result 56 states and 66 transitions. [2018-11-10 04:37:41,171 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:37:41,171 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-11-10 04:37:41,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:37:41,172 INFO L225 Difference]: With dead ends: 56 [2018-11-10 04:37:41,172 INFO L226 Difference]: Without dead ends: 39 [2018-11-10 04:37:41,173 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:37:41,173 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2018-11-10 04:37:41,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 33. [2018-11-10 04:37:41,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2018-11-10 04:37:41,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 38 transitions. [2018-11-10 04:37:41,178 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 38 transitions. Word has length 19 [2018-11-10 04:37:41,178 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:37:41,178 INFO L481 AbstractCegarLoop]: Abstraction has 33 states and 38 transitions. [2018-11-10 04:37:41,178 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-11-10 04:37:41,178 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 38 transitions. [2018-11-10 04:37:41,179 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 25 [2018-11-10 04:37:41,179 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:37:41,179 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:37:41,179 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:37:41,179 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:41,180 INFO L82 PathProgramCache]: Analyzing trace with hash -934817045, now seen corresponding path program 1 times [2018-11-10 04:37:41,180 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:37:41,180 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:41,181 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,181 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:41,181 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:37:41,186 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:37:41,187 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:37:41,187 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:37:41,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,199 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:37:41,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:41,224 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 25 with the following transitions: [2018-11-10 04:37:41,226 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [43], [47], [51], [57], [61], [67], [71], [77], [93], [96], [98], [104], [105], [106], [108] [2018-11-10 04:37:41,258 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:37:41,258 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:37:41,373 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:37:41,374 INFO L272 AbstractInterpreter]: Visited 11 different actions 11 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-10 04:37:41,382 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:41,382 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:37:41,474 INFO L227 lantSequenceWeakener]: Weakened 11 states. On average, predicates are now at 81.82% of their original sizes. [2018-11-10 04:37:41,474 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:37:41,495 INFO L415 sIntCurrentIteration]: We unified 23 AI predicates to 23 [2018-11-10 04:37:41,496 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:37:41,496 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:37:41,496 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-10 04:37:41,496 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:37:41,497 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-10 04:37:41,497 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-10 04:37:41,497 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:37:41,497 INFO L87 Difference]: Start difference. First operand 33 states and 38 transitions. Second operand 4 states. [2018-11-10 04:37:41,660 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:37:41,661 INFO L93 Difference]: Finished difference Result 69 states and 83 transitions. [2018-11-10 04:37:41,661 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-10 04:37:41,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 24 [2018-11-10 04:37:41,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:37:41,662 INFO L225 Difference]: With dead ends: 69 [2018-11-10 04:37:41,662 INFO L226 Difference]: Without dead ends: 44 [2018-11-10 04:37:41,662 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 23 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-10 04:37:41,662 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-11-10 04:37:41,668 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-11-10 04:37:41,668 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-11-10 04:37:41,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 46 transitions. [2018-11-10 04:37:41,669 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 46 transitions. Word has length 24 [2018-11-10 04:37:41,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:37:41,669 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 46 transitions. [2018-11-10 04:37:41,669 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-10 04:37:41,669 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 46 transitions. [2018-11-10 04:37:41,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2018-11-10 04:37:41,670 INFO L367 BasicCegarLoop]: Found error trace [2018-11-10 04:37:41,670 INFO L375 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-10 04:37:41,670 INFO L424 AbstractCegarLoop]: === Iteration 4 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-10 04:37:41,671 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:41,671 INFO L82 PathProgramCache]: Analyzing trace with hash 119359556, now seen corresponding path program 1 times [2018-11-10 04:37:41,671 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-11-10 04:37:41,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:41,672 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,672 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-10 04:37:41,672 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-11-10 04:37:41,677 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-11-10 04:37:41,677 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-11-10 04:37:41,677 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2018-11-10 04:37:41,689 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-10 04:37:41,689 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-11-10 04:37:41,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-10 04:37:41,723 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 30 with the following transitions: [2018-11-10 04:37:41,724 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [9], [13], [15], [19], [23], [25], [29], [33], [39], [43], [47], [51], [57], [61], [67], [71], [77], [93], [96], [98], [104], [105], [106], [108] [2018-11-10 04:37:41,725 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-11-10 04:37:41,725 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-11-10 04:37:41,752 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-11-10 04:37:41,753 INFO L272 AbstractInterpreter]: Visited 14 different actions 14 times. Never merged. Never widened. Never found a fixpoint. Largest state had 28 variables. [2018-11-10 04:37:41,762 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-10 04:37:41,762 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-11-10 04:37:41,816 INFO L227 lantSequenceWeakener]: Weakened 15 states. On average, predicates are now at 75.38% of their original sizes. [2018-11-10 04:37:41,816 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-11-10 04:37:41,860 INFO L415 sIntCurrentIteration]: We unified 28 AI predicates to 28 [2018-11-10 04:37:41,861 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-11-10 04:37:41,861 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-10 04:37:41,861 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-11-10 04:37:41,861 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-11-10 04:37:41,861 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-11-10 04:37:41,861 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-11-10 04:37:41,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:37:41,862 INFO L87 Difference]: Start difference. First operand 40 states and 46 transitions. Second operand 5 states. [2018-11-10 04:37:41,899 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-10 04:37:41,900 INFO L93 Difference]: Finished difference Result 42 states and 48 transitions. [2018-11-10 04:37:41,900 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-11-10 04:37:41,900 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 29 [2018-11-10 04:37:41,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-10 04:37:41,900 INFO L225 Difference]: With dead ends: 42 [2018-11-10 04:37:41,900 INFO L226 Difference]: Without dead ends: 0 [2018-11-10 04:37:41,901 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 28 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2018-11-10 04:37:41,901 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-10 04:37:41,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-10 04:37:41,903 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-10 04:37:41,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-10 04:37:41,903 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 29 [2018-11-10 04:37:41,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-10 04:37:41,904 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-10 04:37:41,904 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-11-10 04:37:41,904 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-10 04:37:41,904 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-10 04:37:41,908 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-10 04:37:42,152 WARN L179 SmtUtils]: Spent 124.00 ms on a formula simplification. DAG size of input: 86 DAG size of output: 21 [2018-11-10 04:37:42,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:37:42,355 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:37:42,355 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:37:42,356 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-10 04:37:42,356 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-10 04:37:42,356 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-10 04:37:42,356 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-10 04:37:42,356 INFO L425 ceAbstractionStarter]: For program point L27-1(lines 27 30) no Hoare annotation was computed. [2018-11-10 04:37:42,356 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 11 56) no Hoare annotation was computed. [2018-11-10 04:37:42,357 INFO L421 ceAbstractionStarter]: At program point L27-3(lines 27 30) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (+ main_~i~0 main_~n~0) 1000) (not (= |main_~#A~0.base| 0)) (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (<= (+ main_~j~0 1000) main_~n~0) (<= (+ main_~k~0 1000) main_~n~0) (= main_~i~0 0)) [2018-11-10 04:37:42,357 INFO L425 ceAbstractionStarter]: For program point L27-4(lines 27 30) no Hoare annotation was computed. [2018-11-10 04:37:42,357 INFO L421 ceAbstractionStarter]: At program point L48(line 48) the Hoare annotation is: false [2018-11-10 04:37:42,357 INFO L425 ceAbstractionStarter]: For program point L48-1(line 48) no Hoare annotation was computed. [2018-11-10 04:37:42,357 INFO L425 ceAbstractionStarter]: For program point L45-1(lines 45 52) no Hoare annotation was computed. [2018-11-10 04:37:42,357 INFO L421 ceAbstractionStarter]: At program point L45-3(lines 45 52) the Hoare annotation is: false [2018-11-10 04:37:42,357 INFO L425 ceAbstractionStarter]: For program point L45-4(lines 45 52) no Hoare annotation was computed. [2018-11-10 04:37:42,357 INFO L425 ceAbstractionStarter]: For program point L25-1(lines 25 32) no Hoare annotation was computed. [2018-11-10 04:37:42,358 INFO L421 ceAbstractionStarter]: At program point L25-3(lines 25 32) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (+ main_~i~0 main_~n~0) 1000) (not (= |main_~#A~0.base| 0)) (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (<= (+ main_~j~0 1000) main_~n~0) (<= (+ main_~k~0 1000) main_~n~0) (= main_~i~0 0)) [2018-11-10 04:37:42,358 INFO L425 ceAbstractionStarter]: For program point L25-4(lines 25 32) no Hoare annotation was computed. [2018-11-10 04:37:42,358 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 11 56) no Hoare annotation was computed. [2018-11-10 04:37:42,358 INFO L425 ceAbstractionStarter]: For program point L42-1(lines 42 54) no Hoare annotation was computed. [2018-11-10 04:37:42,358 INFO L421 ceAbstractionStarter]: At program point L42-3(lines 42 54) the Hoare annotation is: false [2018-11-10 04:37:42,358 INFO L425 ceAbstractionStarter]: For program point L42-4(lines 42 54) no Hoare annotation was computed. [2018-11-10 04:37:42,358 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 11 56) the Hoare annotation is: true [2018-11-10 04:37:42,359 INFO L425 ceAbstractionStarter]: For program point L22-1(lines 22 34) no Hoare annotation was computed. [2018-11-10 04:37:42,359 INFO L421 ceAbstractionStarter]: At program point L22-3(lines 22 34) the Hoare annotation is: (and (<= |main_~#A~0.offset| main_~k~0) (<= (+ main_~i~0 main_~n~0) 1000) (not (= |main_~#A~0.base| 0)) (<= 0 (+ main_~j~0 |main_~#A~0.offset|)) (<= (+ main_~j~0 1000) main_~n~0) (<= (+ main_~k~0 1000) main_~n~0) (= main_~i~0 0)) [2018-11-10 04:37:42,359 INFO L425 ceAbstractionStarter]: For program point L22-4(lines 22 34) no Hoare annotation was computed. [2018-11-10 04:37:42,359 INFO L425 ceAbstractionStarter]: For program point L47-1(lines 47 50) no Hoare annotation was computed. [2018-11-10 04:37:42,359 INFO L421 ceAbstractionStarter]: At program point L47-3(lines 47 50) the Hoare annotation is: false [2018-11-10 04:37:42,359 INFO L425 ceAbstractionStarter]: For program point L47-4(lines 47 50) no Hoare annotation was computed. [2018-11-10 04:37:42,359 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-11-10 04:37:42,360 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-11-10 04:37:42,360 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-11-10 04:37:42,360 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-11-10 04:37:42,360 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-11-10 04:37:42,360 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-11-10 04:37:42,370 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.11 04:37:42 BoogieIcfgContainer [2018-11-10 04:37:42,370 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-10 04:37:42,371 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-10 04:37:42,371 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-10 04:37:42,371 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-10 04:37:42,372 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.11 04:37:40" (3/4) ... [2018-11-10 04:37:42,374 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-10 04:37:42,378 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-10 04:37:42,379 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-10 04:37:42,379 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-11-10 04:37:42,383 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-11-10 04:37:42,383 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2018-11-10 04:37:42,383 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-10 04:37:42,420 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_7398c56d-ca51-4297-82aa-bc976344e8c5/bin-2019/utaipan/witness.graphml [2018-11-10 04:37:42,420 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-10 04:37:42,421 INFO L168 Benchmark]: Toolchain (without parser) took 2223.98 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 954.9 MB in the beginning and 808.1 MB in the end (delta: 146.7 MB). Peak memory consumption was 288.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,422 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:37:42,423 INFO L168 Benchmark]: CACSL2BoogieTranslator took 188.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,423 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.34 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,423 INFO L168 Benchmark]: Boogie Preprocessor took 17.78 ms. Allocated memory is still 1.0 GB. Free memory is still 940.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-10 04:37:42,423 INFO L168 Benchmark]: RCFGBuilder took 238.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,424 INFO L168 Benchmark]: TraceAbstraction took 1702.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 809.8 MB in the end (delta: 311.6 MB). Peak memory consumption was 311.6 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,424 INFO L168 Benchmark]: Witness Printer took 49.63 ms. Allocated memory is still 1.2 GB. Free memory was 809.8 MB in the beginning and 808.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 11.5 GB. [2018-11-10 04:37:42,426 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 980.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 188.36 ms. Allocated memory is still 1.0 GB. Free memory was 954.9 MB in the beginning and 943.0 MB in the end (delta: 11.8 MB). Peak memory consumption was 11.8 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 24.34 ms. Allocated memory is still 1.0 GB. Free memory was 943.0 MB in the beginning and 940.4 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.78 ms. Allocated memory is still 1.0 GB. Free memory is still 940.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 238.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 142.1 MB). Free memory was 940.4 MB in the beginning and 1.1 GB in the end (delta: -181.1 MB). Peak memory consumption was 17.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1702.01 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 809.8 MB in the end (delta: 311.6 MB). Peak memory consumption was 311.6 MB. Max. memory is 11.5 GB. * Witness Printer took 49.63 ms. Allocated memory is still 1.2 GB. Free memory was 809.8 MB in the beginning and 808.1 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 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: 25]: Loop Invariant Derived loop invariant: (((((A <= k && i + n <= 1000) && !(A == 0)) && 0 <= j + A) && j + 1000 <= n) && k + 1000 <= n) && i == 0 - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 42]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: (((((A <= k && i + n <= 1000) && !(A == 0)) && 0 <= j + A) && j + 1000 <= n) && k + 1000 <= n) && i == 0 - InvariantResult [Line: 22]: Loop Invariant Derived loop invariant: (((((A <= k && i + n <= 1000) && !(A == 0)) && 0 <= j + A) && j + 1000 <= n) && k + 1000 <= n) && i == 0 - InvariantResult [Line: 45]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 36 locations, 1 error locations. SAFE Result, 1.6s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.4s HoareAnnotationTime, HoareTripleCheckerStatistics: 110 SDtfs, 28 SDslu, 49 SDs, 0 SdLazy, 24 SolverSat, 11 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 123 GetRequests, 116 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9718487394957982 AbsIntWeakeningRatio, 1.1568627450980393 AbsIntAvgWeakeningVarsNumRemoved, 60.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 10 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 12 LocationsWithAnnotation, 15 PreInvPairs, 18 NumberOfFragments, 102 HoareAnnotationTreeSize, 15 FomulaSimplifications, 259 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 12 FomulaSimplificationsInter, 642 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 127 NumberOfCodeBlocks, 127 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 70 ConstructedInterpolants, 0 QuantifiedInterpolants, 1514 SizeOfPredicates, 2 NumberOfNonLiveVariables, 181 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...