./Ultimate.py --spec ../../sv-benchmarks/c/ReachSafety.prp --file ../../sv-benchmarks/c/array-tiling/poly2_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_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/data -tc /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/config/TaipanReach.xml -i ../../sv-benchmarks/c/array-tiling/poly2_true-unreach-call.i -s /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/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 0dee1665ea0b06f5ecda8774bb5fae6c409e8192 .............................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-1dbac8b [2018-10-26 23:42:18,888 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-26 23:42:18,890 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-26 23:42:18,900 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-26 23:42:18,901 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-26 23:42:18,902 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-26 23:42:18,905 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-26 23:42:18,906 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-26 23:42:18,908 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-26 23:42:18,910 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-26 23:42:18,913 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-26 23:42:18,913 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-26 23:42:18,914 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-26 23:42:18,916 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-26 23:42:18,922 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-26 23:42:18,923 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-26 23:42:18,923 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-26 23:42:18,924 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-26 23:42:18,928 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-26 23:42:18,930 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-26 23:42:18,932 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-26 23:42:18,933 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-26 23:42:18,936 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-26 23:42:18,938 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-26 23:42:18,938 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-26 23:42:18,939 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-26 23:42:18,939 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-26 23:42:18,940 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-26 23:42:18,940 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-26 23:42:18,941 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-26 23:42:18,941 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-26 23:42:18,941 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-26 23:42:18,942 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-26 23:42:18,942 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-26 23:42:18,942 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-26 23:42:18,943 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-26 23:42:18,945 INFO L98 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-26 23:42:18,958 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-26 23:42:18,960 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-26 23:42:18,960 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-26 23:42:18,961 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-26 23:42:18,961 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-26 23:42:18,961 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-26 23:42:18,961 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-26 23:42:18,962 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-26 23:42:18,962 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-26 23:42:18,962 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-26 23:42:18,963 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-26 23:42:18,964 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-26 23:42:18,965 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-26 23:42:18,966 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-26 23:42:18,966 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-26 23:42:18,967 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-26 23:42:18,967 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-26 23:42:18,967 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_1ec54402-df5a-477b-9f1d-61495e9c925f/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 -> 0dee1665ea0b06f5ecda8774bb5fae6c409e8192 [2018-10-26 23:42:19,003 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-26 23:42:19,012 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-26 23:42:19,015 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-26 23:42:19,019 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-26 23:42:19,019 INFO L276 PluginConnector]: CDTParser initialized [2018-10-26 23:42:19,020 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/../../sv-benchmarks/c/array-tiling/poly2_true-unreach-call.i [2018-10-26 23:42:19,068 INFO L218 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/data/256b926dc/b8c6847cbe9c473eaabe1a2af31e0b5b/FLAG6932604a5 [2018-10-26 23:42:19,442 INFO L298 CDTParser]: Found 1 translation units. [2018-10-26 23:42:19,443 INFO L158 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/sv-benchmarks/c/array-tiling/poly2_true-unreach-call.i [2018-10-26 23:42:19,449 INFO L346 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/data/256b926dc/b8c6847cbe9c473eaabe1a2af31e0b5b/FLAG6932604a5 [2018-10-26 23:42:19,465 INFO L354 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/data/256b926dc/b8c6847cbe9c473eaabe1a2af31e0b5b [2018-10-26 23:42:19,468 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-26 23:42:19,470 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-26 23:42:19,471 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-26 23:42:19,473 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-26 23:42:19,477 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-26 23:42:19,477 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,480 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4845e82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19, skipping insertion in model container [2018-10-26 23:42:19,480 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,493 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-26 23:42:19,514 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-26 23:42:19,668 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:42:19,671 INFO L189 MainTranslator]: Completed pre-run [2018-10-26 23:42:19,688 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-26 23:42:19,704 INFO L193 MainTranslator]: Completed translation [2018-10-26 23:42:19,705 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19 WrapperNode [2018-10-26 23:42:19,705 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-26 23:42:19,705 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-26 23:42:19,706 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-26 23:42:19,706 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-26 23:42:19,714 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,721 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,737 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-26 23:42:19,737 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-26 23:42:19,738 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-26 23:42:19,738 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-26 23:42:19,746 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,746 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,747 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,748 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,751 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,756 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,757 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... [2018-10-26 23:42:19,758 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-26 23:42:19,759 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-26 23:42:19,759 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-26 23:42:19,759 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-26 23:42:19,760 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/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 [2018-10-26 23:42:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-26 23:42:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-26 23:42:19,886 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-26 23:42:19,886 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-26 23:42:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-26 23:42:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-26 23:42:19,887 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-26 23:42:19,887 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-26 23:42:20,290 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-26 23:42:20,290 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:42:20 BoogieIcfgContainer [2018-10-26 23:42:20,290 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-26 23:42:20,291 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-26 23:42:20,291 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-26 23:42:20,294 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-26 23:42:20,294 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 11:42:19" (1/3) ... [2018-10-26 23:42:20,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7049d2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:42:20, skipping insertion in model container [2018-10-26 23:42:20,296 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 11:42:19" (2/3) ... [2018-10-26 23:42:20,296 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7049d2da and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 11:42:20, skipping insertion in model container [2018-10-26 23:42:20,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:42:20" (3/3) ... [2018-10-26 23:42:20,298 INFO L112 eAbstractionObserver]: Analyzing ICFG poly2_true-unreach-call.i [2018-10-26 23:42:20,308 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-26 23:42:20,315 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-26 23:42:20,330 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-26 23:42:20,362 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-26 23:42:20,362 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-26 23:42:20,362 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-26 23:42:20,362 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-26 23:42:20,362 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-26 23:42:20,362 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-26 23:42:20,363 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-26 23:42:20,363 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-26 23:42:20,385 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states. [2018-10-26 23:42:20,396 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-10-26 23:42:20,397 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:42:20,397 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:42:20,403 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:42:20,410 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:42:20,410 INFO L82 PathProgramCache]: Analyzing trace with hash 307797192, now seen corresponding path program 1 times [2018-10-26 23:42:20,412 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:42:20,461 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,462 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,462 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,462 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:42:20,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:42:20,540 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:42:20,542 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:42:20,542 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-10-26 23:42:20,542 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:42:20,547 INFO L460 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-10-26 23:42:20,559 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-10-26 23:42:20,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:42:20,561 INFO L87 Difference]: Start difference. First operand 32 states. Second operand 2 states. [2018-10-26 23:42:20,584 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:42:20,584 INFO L93 Difference]: Finished difference Result 54 states and 66 transitions. [2018-10-26 23:42:20,584 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-10-26 23:42:20,585 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 17 [2018-10-26 23:42:20,586 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:42:20,593 INFO L225 Difference]: With dead ends: 54 [2018-10-26 23:42:20,593 INFO L226 Difference]: Without dead ends: 26 [2018-10-26 23:42:20,597 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-10-26 23:42:20,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-10-26 23:42:20,627 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 26. [2018-10-26 23:42:20,629 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 26 states. [2018-10-26 23:42:20,630 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 28 transitions. [2018-10-26 23:42:20,632 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 28 transitions. Word has length 17 [2018-10-26 23:42:20,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:42:20,632 INFO L481 AbstractCegarLoop]: Abstraction has 26 states and 28 transitions. [2018-10-26 23:42:20,632 INFO L482 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-10-26 23:42:20,632 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 28 transitions. [2018-10-26 23:42:20,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-10-26 23:42:20,633 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:42:20,633 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-26 23:42:20,633 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:42:20,634 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:42:20,634 INFO L82 PathProgramCache]: Analyzing trace with hash 908709011, now seen corresponding path program 1 times [2018-10-26 23:42:20,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:42:20,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,636 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,637 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:42:20,656 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 23:42:20,657 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 23:42:20,657 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/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 [2018-10-26 23:42:20,666 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,666 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 23:42:20,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:42:20,709 INFO L190 CegarAbsIntRunner]: Skipping current iteration for AI because the path program does not contain any loops [2018-10-26 23:42:20,710 INFO L422 seRefinementStrategy]: Interpolation failed due to KNOWN_IGNORE: AbsInt can only provide a hoare triple checker if it generated fixpoints [2018-10-26 23:42:20,710 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-26 23:42:20,710 INFO L194 anRefinementStrategy]: Switched to InterpolantGenerator mode Z3_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/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 [2018-10-26 23:42:20,722 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,722 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: FPandBP) [2018-10-26 23:42:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:42:20,761 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-10-26 23:42:20,802 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:42:20,802 INFO L316 TraceCheckSpWp]: Computing backward predicates... [2018-10-26 23:42:20,868 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-26 23:42:20,887 INFO L312 seRefinementStrategy]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:42:20,887 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3, 3] imperfect sequences [] total 4 [2018-10-26 23:42:20,887 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:42:20,888 INFO L460 AbstractCegarLoop]: Interpolant automaton has 3 states [2018-10-26 23:42:20,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2018-10-26 23:42:20,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:42:20,888 INFO L87 Difference]: Start difference. First operand 26 states and 28 transitions. Second operand 3 states. [2018-10-26 23:42:20,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:42:20,966 INFO L93 Difference]: Finished difference Result 45 states and 49 transitions. [2018-10-26 23:42:20,966 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2018-10-26 23:42:20,966 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2018-10-26 23:42:20,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:42:20,967 INFO L225 Difference]: With dead ends: 45 [2018-10-26 23:42:20,967 INFO L226 Difference]: Without dead ends: 29 [2018-10-26 23:42:20,968 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 [2018-10-26 23:42:20,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2018-10-26 23:42:20,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 28. [2018-10-26 23:42:20,972 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28 states. [2018-10-26 23:42:20,973 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28 states to 28 states and 30 transitions. [2018-10-26 23:42:20,973 INFO L78 Accepts]: Start accepts. Automaton has 28 states and 30 transitions. Word has length 19 [2018-10-26 23:42:20,974 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:42:20,974 INFO L481 AbstractCegarLoop]: Abstraction has 28 states and 30 transitions. [2018-10-26 23:42:20,974 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2018-10-26 23:42:20,974 INFO L276 IsEmpty]: Start isEmpty. Operand 28 states and 30 transitions. [2018-10-26 23:42:20,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-10-26 23:42:20,975 INFO L367 BasicCegarLoop]: Found error trace [2018-10-26 23:42:20,975 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] [2018-10-26 23:42:20,975 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-26 23:42:20,975 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:42:20,975 INFO L82 PathProgramCache]: Analyzing trace with hash 89047785, now seen corresponding path program 1 times [2018-10-26 23:42:20,976 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-26 23:42:20,976 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-26 23:42:20,977 INFO L288 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-26 23:42:20,985 ERROR L235 seRefinementStrategy]: Caught known exception: Unsupported non-linear arithmetic [2018-10-26 23:42:20,985 INFO L258 seRefinementStrategy]: Advancing trace checker [2018-10-26 23:42:20,985 INFO L171 anRefinementStrategy]: Switched to traceCheck mode Z3_NO_IG No working directory specified, using /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/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 [2018-10-26 23:42:20,996 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-26 23:42:20,996 INFO L288 anRefinementStrategy]: Using traceCheck mode Z3_NO_IG with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: null) [2018-10-26 23:42:21,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-26 23:42:21,032 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 23 with the following transitions: [2018-10-26 23:42:21,033 INFO L202 CegarAbsIntRunner]: [0], [1], [5], [8], [12], [15], [17], [19], [23], [27], [30], [38], [42], [47], [61], [64], [66], [72], [73], [74], [76] [2018-10-26 23:42:21,074 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-26 23:42:21,074 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-26 23:42:21,227 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-26 23:42:21,229 INFO L272 AbstractInterpreter]: Visited 10 different actions 10 times. Never merged. Never widened. Never found a fixpoint. Largest state had 32 variables. [2018-10-26 23:42:21,247 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-26 23:42:21,247 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-26 23:42:21,372 INFO L227 lantSequenceWeakener]: Weakened 10 states. On average, predicates are now at 85% of their original sizes. [2018-10-26 23:42:21,374 INFO L413 sIntCurrentIteration]: Unifying AI predicates [2018-10-26 23:42:21,474 INFO L415 sIntCurrentIteration]: We unified 21 AI predicates to 21 [2018-10-26 23:42:21,474 INFO L424 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-26 23:42:21,480 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-26 23:42:21,480 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-10-26 23:42:21,480 INFO L258 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-26 23:42:21,480 INFO L460 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-10-26 23:42:21,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-10-26 23:42:21,481 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:42:21,481 INFO L87 Difference]: Start difference. First operand 28 states and 30 transitions. Second operand 4 states. [2018-10-26 23:42:21,575 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-26 23:42:21,575 INFO L93 Difference]: Finished difference Result 28 states and 30 transitions. [2018-10-26 23:42:21,576 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-10-26 23:42:21,576 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 22 [2018-10-26 23:42:21,576 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-26 23:42:21,576 INFO L225 Difference]: With dead ends: 28 [2018-10-26 23:42:21,576 INFO L226 Difference]: Without dead ends: 0 [2018-10-26 23:42:21,577 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 21 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-10-26 23:42:21,577 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-26 23:42:21,577 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-26 23:42:21,578 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-26 23:42:21,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-26 23:42:21,578 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 22 [2018-10-26 23:42:21,578 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-26 23:42:21,578 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-26 23:42:21,578 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-10-26 23:42:21,579 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-26 23:42:21,579 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-26 23:42:21,584 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-26 23:42:22,122 WARN L179 SmtUtils]: Spent 427.00 ms on a formula simplification. DAG size of input: 54 DAG size of output: 27 [2018-10-26 23:42:22,133 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:42:22,134 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:42:22,134 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:42:22,134 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-26 23:42:22,134 INFO L421 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: (let ((.cse0 (* 2 ~SIZE~0))) (and (<= .cse0 4294967294) (<= 0 (+ .cse0 4294967296)))) [2018-10-26 23:42:22,134 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-26 23:42:22,134 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L421 ceAbstractionStarter]: At program point L31(line 31) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L31-1(line 31) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 35) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L23-1(lines 23 26) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L23-3(lines 23 26) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L421 ceAbstractionStarter]: At program point L23-4(lines 23 26) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L23-5(lines 23 26) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L29-1(lines 29 32) no Hoare annotation was computed. [2018-10-26 23:42:22,135 INFO L425 ceAbstractionStarter]: For program point L29-3(lines 29 32) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L421 ceAbstractionStarter]: At program point L29-4(lines 29 32) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0))) [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point L29-5(lines 29 32) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point L13(lines 13 33) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 35) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point L13-2(lines 13 33) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L421 ceAbstractionStarter]: At program point mainENTRY(lines 10 35) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (< 4294967294 .cse0) (let ((.cse1 (* 2 ~SIZE~0))) (and (<= .cse1 4294967294) (<= 0 (+ .cse1 4294967296)))))) [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point L18-1(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L425 ceAbstractionStarter]: For program point L18-3(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:42:22,136 INFO L421 ceAbstractionStarter]: At program point L18-4(lines 18 21) the Hoare annotation is: (let ((.cse0 (* 2 |old(~SIZE~0)|))) (or (< (+ .cse0 4294967296) 0) (and (not (= |main_~#a~0.base| 0)) (<= ~SIZE~0 (+ main_~i~0 2147483647)) (<= 4 (* 2 ~SIZE~0)) (= main_~i~0 0) (= |main_~#a~0.offset| 0)) (< 4294967294 .cse0))) [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point L18-5(lines 18 21) no Hoare annotation was computed. [2018-10-26 23:42:22,137 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(line 5) the Hoare annotation is: true [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(line 5) no Hoare annotation was computed. [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point L5-1(line 5) no Hoare annotation was computed. [2018-10-26 23:42:22,137 INFO L425 ceAbstractionStarter]: For program point L5-3(line 5) no Hoare annotation was computed. [2018-10-26 23:42:22,147 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 11:42:22 BoogieIcfgContainer [2018-10-26 23:42:22,148 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-26 23:42:22,148 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-26 23:42:22,148 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-26 23:42:22,148 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-26 23:42:22,149 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 11:42:20" (3/4) ... [2018-10-26 23:42:22,153 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-26 23:42:22,159 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-26 23:42:22,160 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-26 23:42:22,160 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-26 23:42:22,164 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 25 nodes and edges [2018-10-26 23:42:22,165 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2018-10-26 23:42:22,165 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-10-26 23:42:22,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (2 * \old(SIZE) + 4294967296 < 0 || ((((!(a == 0) && SIZE <= i + 2147483647) && 4 <= 2 * SIZE) && i == 0) && a == 0)) || 4294967294 < 2 * \old(SIZE) [2018-10-26 23:42:22,190 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) [2018-10-26 23:42:22,191 WARN L220 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) [2018-10-26 23:42:22,209 INFO L145 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/working_dir_1ec54402-df5a-477b-9f1d-61495e9c925f/bin-2019/utaipan/witness.graphml [2018-10-26 23:42:22,209 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-26 23:42:22,210 INFO L168 Benchmark]: Toolchain (without parser) took 2740.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 961.8 MB in the beginning and 1.0 GB in the end (delta: -60.4 MB). Peak memory consumption was 95.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,211 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:42:22,211 INFO L168 Benchmark]: CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,212 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 948.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,213 INFO L168 Benchmark]: Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-26 23:42:22,213 INFO L168 Benchmark]: RCFGBuilder took 531.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,214 INFO L168 Benchmark]: TraceAbstraction took 1856.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,214 INFO L168 Benchmark]: Witness Printer took 61.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 11.5 GB. [2018-10-26 23:42:22,219 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 985.4 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 233.77 ms. Allocated memory is still 1.0 GB. Free memory was 961.8 MB in the beginning and 951.1 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 31.77 ms. Allocated memory is still 1.0 GB. Free memory was 951.1 MB in the beginning and 948.3 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.97 ms. Allocated memory is still 1.0 GB. Free memory is still 948.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 531.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 155.7 MB). Free memory was 948.3 MB in the beginning and 1.1 GB in the end (delta: -184.9 MB). Peak memory consumption was 14.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1856.70 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 108.4 MB). Peak memory consumption was 108.4 MB. Max. memory is 11.5 GB. * Witness Printer took 61.12 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 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: 23]: Loop Invariant Derived loop invariant: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: (2 * \old(SIZE) + 4294967296 < 0 || ((((!(a == 0) && SIZE <= i + 2147483647) && 4 <= 2 * SIZE) && i == 0) && a == 0)) || 4294967294 < 2 * \old(SIZE) - InvariantResult [Line: 29]: Loop Invariant Derived loop invariant: 2 * \old(SIZE) + 4294967296 < 0 || 4294967294 < 2 * \old(SIZE) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 32 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 3 OverallIterations, 2 TraceHistogramMax, 0.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.5s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 6 SDslu, 17 SDs, 0 SdLazy, 15 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 2 DeclaredPredicates, 60 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=32occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.2s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 0.9672619047619048 AbsIntWeakeningRatio, 1.2857142857142858 AbsIntAvgWeakeningVarsNumRemoved, 46.904761904761905 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 11 PreInvPairs, 12 NumberOfFragments, 125 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 9 FomulaSimplificationsInter, 82 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 77 NumberOfCodeBlocks, 77 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1192 SizeOfPredicates, 3 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 3 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...