./Ultimate.py --spec ../../../trunk/examples/svcomp/ReachSafety.prp --file ../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i --full-output --rcfgbuilder.size.of.a.code.block LoopFreeBlock --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0210da8c Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/TaipanReach.xml -i ../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UTaipan-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Taipan --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 --rcfgbuilder.size.of.a.code.block LoopFreeBlock ............................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.23-0210da8 [2018-10-22 10:17:04,024 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-10-22 10:17:04,026 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-10-22 10:17:04,039 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-10-22 10:17:04,039 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-10-22 10:17:04,040 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-10-22 10:17:04,042 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-10-22 10:17:04,044 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-10-22 10:17:04,045 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-10-22 10:17:04,046 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-10-22 10:17:04,047 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-10-22 10:17:04,048 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-10-22 10:17:04,049 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-10-22 10:17:04,050 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-10-22 10:17:04,051 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-10-22 10:17:04,052 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-10-22 10:17:04,053 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-10-22 10:17:04,056 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-10-22 10:17:04,061 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-10-22 10:17:04,066 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-10-22 10:17:04,067 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-10-22 10:17:04,068 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-10-22 10:17:04,070 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-10-22 10:17:04,074 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-10-22 10:17:04,074 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-10-22 10:17:04,075 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-10-22 10:17:04,076 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-10-22 10:17:04,076 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-10-22 10:17:04,077 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-10-22 10:17:04,081 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-10-22 10:17:04,081 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-10-22 10:17:04,081 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-10-22 10:17:04,082 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-10-22 10:17:04,082 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-10-22 10:17:04,084 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-10-22 10:17:04,085 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-10-22 10:17:04,085 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/config/svcomp-Reach-32bit-Taipan_Default.epf [2018-10-22 10:17:04,113 INFO L110 SettingsManager]: Loading preferences was successful [2018-10-22 10:17:04,113 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-10-22 10:17:04,114 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-10-22 10:17:04,114 INFO L133 SettingsManager]: * User list type=DISABLED [2018-10-22 10:17:04,115 INFO L133 SettingsManager]: * calls to implemented procedures=false [2018-10-22 10:17:04,115 INFO L131 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2018-10-22 10:17:04,115 INFO L133 SettingsManager]: * Abstract domain for RCFG-of-the-future=PoormanAbstractDomain [2018-10-22 10:17:04,115 INFO L133 SettingsManager]: * Abstract domain=CompoundDomain [2018-10-22 10:17:04,115 INFO L133 SettingsManager]: * Check feasibility of abstract posts with an SMT solver=true [2018-10-22 10:17:04,115 INFO L133 SettingsManager]: * Use the RCFG-of-the-future interface=true [2018-10-22 10:17:04,116 INFO L133 SettingsManager]: * Interval Domain=false [2018-10-22 10:17:04,119 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-10-22 10:17:04,120 INFO L133 SettingsManager]: * sizeof long=4 [2018-10-22 10:17:04,120 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-10-22 10:17:04,120 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-10-22 10:17:04,121 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-10-22 10:17:04,121 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-10-22 10:17:04,121 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-10-22 10:17:04,121 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-10-22 10:17:04,121 INFO L133 SettingsManager]: * sizeof long double=12 [2018-10-22 10:17:04,122 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-10-22 10:17:04,122 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-10-22 10:17:04,122 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-10-22 10:17:04,122 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-10-22 10:17:04,122 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-10-22 10:17:04,122 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-10-22 10:17:04,123 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-10-22 10:17:04,125 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * Trace refinement strategy=TAIPAN [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-10-22 10:17:04,126 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2018-10-22 10:17:04,127 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 -> /storage/repos/ultimate/releaseScripts/default/UTaipan-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Taipan Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 595e0ffd0ff086ae45c2b9536863374b9b9c0fb6 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> LoopFreeBlock [2018-10-22 10:17:04,204 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-10-22 10:17:04,218 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-10-22 10:17:04,222 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-10-22 10:17:04,224 INFO L271 PluginConnector]: Initializing CDTParser... [2018-10-22 10:17:04,224 INFO L276 PluginConnector]: CDTParser initialized [2018-10-22 10:17:04,229 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/../../../trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-22 10:17:04,293 INFO L218 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18173a18a/1d98dabcd73345a095d98500231b476d/FLAG49eb35843 [2018-10-22 10:17:04,694 INFO L298 CDTParser]: Found 1 translation units. [2018-10-22 10:17:04,694 INFO L158 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/loop-invgen/id_build_true-unreach-call_true-termination.i [2018-10-22 10:17:04,701 INFO L346 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18173a18a/1d98dabcd73345a095d98500231b476d/FLAG49eb35843 [2018-10-22 10:17:04,717 INFO L354 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/data/18173a18a/1d98dabcd73345a095d98500231b476d [2018-10-22 10:17:04,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-10-22 10:17:04,725 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-10-22 10:17:04,726 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-10-22 10:17:04,726 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-10-22 10:17:04,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-10-22 10:17:04,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:17:04" (1/1) ... [2018-10-22 10:17:04,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6940a29c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:04, skipping insertion in model container [2018-10-22 10:17:04,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.10 10:17:04" (1/1) ... [2018-10-22 10:17:04,746 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-10-22 10:17:04,773 INFO L174 MainTranslator]: Built tables and reachable declarations [2018-10-22 10:17:05,019 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:17:05,023 INFO L189 MainTranslator]: Completed pre-run [2018-10-22 10:17:05,042 INFO L202 PostProcessor]: Analyzing one entry point: main [2018-10-22 10:17:05,058 INFO L193 MainTranslator]: Completed translation [2018-10-22 10:17:05,058 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05 WrapperNode [2018-10-22 10:17:05,059 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-10-22 10:17:05,059 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-10-22 10:17:05,059 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-10-22 10:17:05,060 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-10-22 10:17:05,070 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,083 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-10-22 10:17:05,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-10-22 10:17:05,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-10-22 10:17:05,083 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-10-22 10:17:05,095 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,096 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,097 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,097 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,101 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,108 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,111 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... [2018-10-22 10:17:05,113 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-10-22 10:17:05,114 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-10-22 10:17:05,115 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-10-22 10:17:05,115 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-10-22 10:17:05,116 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/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 [2018-10-22 10:17:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-10-22 10:17:05,271 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-10-22 10:17:05,271 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-10-22 10:17:05,272 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-10-22 10:17:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-10-22 10:17:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-10-22 10:17:05,273 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2018-10-22 10:17:05,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2018-10-22 10:17:05,618 INFO L341 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-10-22 10:17:05,619 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:05 BoogieIcfgContainer [2018-10-22 10:17:05,619 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-10-22 10:17:05,620 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-10-22 10:17:05,620 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-10-22 10:17:05,625 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-10-22 10:17:05,627 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.10 10:17:04" (1/3) ... [2018-10-22 10:17:05,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd33cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:17:05, skipping insertion in model container [2018-10-22 10:17:05,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.10 10:17:05" (2/3) ... [2018-10-22 10:17:05,631 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2bd33cca and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.10 10:17:05, skipping insertion in model container [2018-10-22 10:17:05,631 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:05" (3/3) ... [2018-10-22 10:17:05,638 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call_true-termination.i [2018-10-22 10:17:05,654 INFO L136 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-10-22 10:17:05,667 INFO L148 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-10-22 10:17:05,686 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-10-22 10:17:05,725 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-10-22 10:17:05,726 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-10-22 10:17:05,726 INFO L383 AbstractCegarLoop]: Hoare is true [2018-10-22 10:17:05,726 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-10-22 10:17:05,727 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-10-22 10:17:05,727 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-10-22 10:17:05,727 INFO L387 AbstractCegarLoop]: Difference is false [2018-10-22 10:17:05,727 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-10-22 10:17:05,727 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-10-22 10:17:05,751 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states. [2018-10-22 10:17:05,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-10-22 10:17:05,758 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:17:05,759 INFO L375 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:17:05,762 INFO L424 AbstractCegarLoop]: === Iteration 1 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:17:05,770 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:17:05,770 INFO L82 PathProgramCache]: Analyzing trace with hash -1225232818, now seen corresponding path program 1 times [2018-10-22 10:17:05,773 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:17:05,828 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:05,829 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:17:05,829 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:05,829 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:17:05,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:17:05,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:17:05,999 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-10-22 10:17:06,000 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2018-10-22 10:17:06,000 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:17:06,005 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-10-22 10:17:06,020 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-10-22 10:17:06,021 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-10-22 10:17:06,024 INFO L87 Difference]: Start difference. First operand 23 states. Second operand 5 states. [2018-10-22 10:17:06,158 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:17:06,158 INFO L93 Difference]: Finished difference Result 45 states and 57 transitions. [2018-10-22 10:17:06,158 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-10-22 10:17:06,160 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2018-10-22 10:17:06,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:17:06,170 INFO L225 Difference]: With dead ends: 45 [2018-10-22 10:17:06,170 INFO L226 Difference]: Without dead ends: 23 [2018-10-22 10:17:06,174 INFO L605 BasicCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2018-10-22 10:17:06,194 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2018-10-22 10:17:06,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2018-10-22 10:17:06,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23 states. [2018-10-22 10:17:06,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2018-10-22 10:17:06,220 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 13 [2018-10-22 10:17:06,220 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:17:06,221 INFO L481 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2018-10-22 10:17:06,221 INFO L482 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-10-22 10:17:06,221 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2018-10-22 10:17:06,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-10-22 10:17:06,222 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:17:06,222 INFO L375 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:17:06,223 INFO L424 AbstractCegarLoop]: === Iteration 2 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:17:06,223 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:17:06,223 INFO L82 PathProgramCache]: Analyzing trace with hash 842211255, now seen corresponding path program 1 times [2018-10-22 10:17:06,223 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:17:06,224 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:06,224 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:17:06,225 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:06,225 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:17:06,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:17:06,582 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-10-22 10:17:06,583 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 10:17:06,583 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 10:17:06,584 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 19 with the following transitions: [2018-10-22 10:17:06,586 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [22], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53] [2018-10-22 10:17:06,635 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 10:17:06,636 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 10:17:06,794 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 10:17:06,796 INFO L272 AbstractInterpreter]: Visited 16 different actions 20 times. Never merged. Never widened. Never found a fixpoint. Largest state had 6 variables. [2018-10-22 10:17:06,822 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:17:06,822 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 10:17:06,931 INFO L232 lantSequenceWeakener]: Weakened 6 states. On average, predicates are now at 66.67% of their original sizes. [2018-10-22 10:17:06,932 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 10:17:07,134 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 10:17:07,135 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 10:17:07,135 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [7] total 13 [2018-10-22 10:17:07,136 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:17:07,138 INFO L460 AbstractCegarLoop]: Interpolant automaton has 8 states [2018-10-22 10:17:07,138 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2018-10-22 10:17:07,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2018-10-22 10:17:07,138 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand 8 states. [2018-10-22 10:17:07,832 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:17:07,832 INFO L93 Difference]: Finished difference Result 62 states and 69 transitions. [2018-10-22 10:17:07,832 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2018-10-22 10:17:07,833 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 18 [2018-10-22 10:17:07,833 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:17:07,836 INFO L225 Difference]: With dead ends: 62 [2018-10-22 10:17:07,836 INFO L226 Difference]: Without dead ends: 44 [2018-10-22 10:17:07,837 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2018-10-22 10:17:07,837 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2018-10-22 10:17:07,852 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 40. [2018-10-22 10:17:07,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 40 states. [2018-10-22 10:17:07,853 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 40 states to 40 states and 42 transitions. [2018-10-22 10:17:07,854 INFO L78 Accepts]: Start accepts. Automaton has 40 states and 42 transitions. Word has length 18 [2018-10-22 10:17:07,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:17:07,854 INFO L481 AbstractCegarLoop]: Abstraction has 40 states and 42 transitions. [2018-10-22 10:17:07,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 8 states. [2018-10-22 10:17:07,854 INFO L276 IsEmpty]: Start isEmpty. Operand 40 states and 42 transitions. [2018-10-22 10:17:07,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2018-10-22 10:17:07,856 INFO L367 BasicCegarLoop]: Found error trace [2018-10-22 10:17:07,856 INFO L375 BasicCegarLoop]: trace histogram [4, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-10-22 10:17:07,856 INFO L424 AbstractCegarLoop]: === Iteration 3 === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-10-22 10:17:07,857 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:17:07,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1000709048, now seen corresponding path program 1 times [2018-10-22 10:17:07,857 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2018-10-22 10:17:07,858 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:07,858 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-10-22 10:17:07,859 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-10-22 10:17:07,859 INFO L295 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2018-10-22 10:17:07,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-10-22 10:17:07,921 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 14 proven. 2 refuted. 0 times theorem prover too weak. 12 trivial. 0 not checked. [2018-10-22 10:17:07,922 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-10-22 10:17:07,922 INFO L197 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2018-10-22 10:17:07,922 INFO L200 CegarAbsIntRunner]: Running AI on error trace of length 37 with the following transitions: [2018-10-22 10:17:07,923 INFO L202 CegarAbsIntRunner]: [0], [4], [8], [13], [17], [20], [22], [26], [30], [36], [39], [41], [44], [46], [47], [48], [49], [51], [52], [53], [54] [2018-10-22 10:17:07,925 INFO L148 AbstractInterpreter]: Using domain PoormanAbstractDomain with backing domain CompoundDomain [CongruenceDomain, OctagonDomain] [2018-10-22 10:17:07,925 INFO L101 FixpointEngine]: Starting fixpoint engine with domain PoormanAbstractDomain (maxUnwinding=3, maxParallelStates=2) [2018-10-22 10:17:08,250 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2018-10-22 10:17:08,251 INFO L272 AbstractInterpreter]: Visited 20 different actions 258 times. Merged at 9 different actions 90 times. Widened at 3 different actions 13 times. Found 11 fixpoints after 4 different actions. Largest state had 8 variables. [2018-10-22 10:17:08,274 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-10-22 10:17:08,274 INFO L398 sIntCurrentIteration]: Generating AbsInt predicates [2018-10-22 10:17:08,342 INFO L232 lantSequenceWeakener]: Weakened 13 states. On average, predicates are now at 71.79% of their original sizes. [2018-10-22 10:17:08,342 INFO L411 sIntCurrentIteration]: Unifying AI predicates [2018-10-22 10:17:08,744 INFO L422 sIntCurrentIteration]: Finished generation of AbsInt predicates [2018-10-22 10:17:08,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2018-10-22 10:17:08,745 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [4] total 11 [2018-10-22 10:17:08,745 INFO L265 anRefinementStrategy]: Using the first perfect interpolant sequence [2018-10-22 10:17:08,745 INFO L460 AbstractCegarLoop]: Interpolant automaton has 9 states [2018-10-22 10:17:08,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2018-10-22 10:17:08,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2018-10-22 10:17:08,746 INFO L87 Difference]: Start difference. First operand 40 states and 42 transitions. Second operand 9 states. [2018-10-22 10:17:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-10-22 10:17:09,226 INFO L93 Difference]: Finished difference Result 58 states and 63 transitions. [2018-10-22 10:17:09,226 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2018-10-22 10:17:09,226 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 36 [2018-10-22 10:17:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-10-22 10:17:09,228 INFO L225 Difference]: With dead ends: 58 [2018-10-22 10:17:09,228 INFO L226 Difference]: Without dead ends: 0 [2018-10-22 10:17:09,229 INFO L605 BasicCegarLoop]: 2 DeclaredPredicates, 38 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2018-10-22 10:17:09,229 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-10-22 10:17:09,229 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-10-22 10:17:09,229 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-10-22 10:17:09,230 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-10-22 10:17:09,230 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 36 [2018-10-22 10:17:09,230 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-10-22 10:17:09,230 INFO L481 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-10-22 10:17:09,230 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2018-10-22 10:17:09,231 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-10-22 10:17:09,232 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-10-22 10:17:09,238 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-10-22 10:17:09,788 WARN L179 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 59 DAG size of output: 18 [2018-10-22 10:17:09,926 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-10-22 10:17:09,926 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:17:09,926 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-10-22 10:17:09,926 INFO L428 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-10-22 10:17:09,926 INFO L428 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-10-22 10:17:09,926 INFO L425 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-10-22 10:17:09,927 INFO L425 ceAbstractionStarter]: For program point mainEXIT(lines 10 20) no Hoare annotation was computed. [2018-10-22 10:17:09,927 INFO L421 ceAbstractionStarter]: At program point L15(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-22 10:17:09,927 INFO L421 ceAbstractionStarter]: At program point L15-1(line 15) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= .cse0 14) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-22 10:17:09,927 INFO L425 ceAbstractionStarter]: For program point mainFINAL(lines 10 20) no Hoare annotation was computed. [2018-10-22 10:17:09,928 INFO L425 ceAbstractionStarter]: For program point L13-1(lines 13 18) no Hoare annotation was computed. [2018-10-22 10:17:09,928 INFO L425 ceAbstractionStarter]: For program point L13-3(lines 13 18) no Hoare annotation was computed. [2018-10-22 10:17:09,928 INFO L421 ceAbstractionStarter]: At program point L13-4(lines 13 18) the Hoare annotation is: (let ((.cse0 (* 2 main_~i~0))) (and (<= (* 2 main_~nlen~0) 4294967294) (<= 0 .cse0) (<= .cse0 4294967294) (<= main_~i~0 (+ main_~nlen~0 2147483648)))) [2018-10-22 10:17:09,928 INFO L425 ceAbstractionStarter]: For program point L13-5(lines 13 18) no Hoare annotation was computed. [2018-10-22 10:17:09,928 INFO L428 ceAbstractionStarter]: At program point mainENTRY(lines 10 20) the Hoare annotation is: true [2018-10-22 10:17:09,928 INFO L425 ceAbstractionStarter]: For program point L16(lines 14 17) no Hoare annotation was computed. [2018-10-22 10:17:09,928 INFO L425 ceAbstractionStarter]: For program point L14-1(lines 14 17) no Hoare annotation was computed. [2018-10-22 10:17:09,929 INFO L421 ceAbstractionStarter]: At program point L14-3(lines 14 17) the Hoare annotation is: (let ((.cse0 (* 2 main_~j~0))) (and (<= .cse0 16) (<= 0 .cse0) (<= (+ main_~i~0 1) main_~nlen~0) (<= (* 2 main_~nlen~0) 4294967294) (<= 0 (* 2 main_~i~0)))) [2018-10-22 10:17:09,929 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-10-22 10:17:09,929 INFO L428 ceAbstractionStarter]: At program point __VERIFIER_assertENTRY(lines 3 8) the Hoare annotation is: true [2018-10-22 10:17:09,929 INFO L425 ceAbstractionStarter]: For program point __VERIFIER_assertEXIT(lines 3 8) no Hoare annotation was computed. [2018-10-22 10:17:09,929 INFO L425 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-10-22 10:17:09,930 INFO L425 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-10-22 10:17:09,930 INFO L425 ceAbstractionStarter]: For program point L4-2(lines 3 8) no Hoare annotation was computed. [2018-10-22 10:17:09,940 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.10 10:17:09 BoogieIcfgContainer [2018-10-22 10:17:09,940 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-10-22 10:17:09,941 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-10-22 10:17:09,941 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-10-22 10:17:09,941 INFO L276 PluginConnector]: Witness Printer initialized [2018-10-22 10:17:09,942 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.10 10:17:05" (3/4) ... [2018-10-22 10:17:09,945 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-10-22 10:17:09,951 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-10-22 10:17:09,952 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-10-22 10:17:09,952 INFO L333 RCFGBacktranslator]: Ignoring RootEdge to procedure __VERIFIER_assert [2018-10-22 10:17:09,956 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2018-10-22 10:17:09,957 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-10-22 10:17:09,957 INFO L846 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-10-22 10:17:10,006 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UTaipan-linux/witness.graphml [2018-10-22 10:17:10,006 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-10-22 10:17:10,007 INFO L168 Benchmark]: Toolchain (without parser) took 5282.66 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 954.5 MB in the beginning and 923.0 MB in the end (delta: 31.5 MB). Peak memory consumption was 164.2 MB. Max. memory is 11.5 GB. [2018-10-22 10:17:10,010 INFO L168 Benchmark]: CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:17:10,011 INFO L168 Benchmark]: CACSL2BoogieTranslator took 332.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-10-22 10:17:10,012 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.51 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:17:10,013 INFO L168 Benchmark]: Boogie Preprocessor took 30.20 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:17:10,014 INFO L168 Benchmark]: RCFGBuilder took 505.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2018-10-22 10:17:10,020 INFO L168 Benchmark]: TraceAbstraction took 4320.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.0 MB in the end (delta: 186.1 MB). Peak memory consumption was 186.1 MB. Max. memory is 11.5 GB. [2018-10-22 10:17:10,022 INFO L168 Benchmark]: Witness Printer took 65.42 ms. Allocated memory is still 1.2 GB. Free memory is still 923.0 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-10-22 10:17:10,030 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.30 ms. Allocated memory is still 1.0 GB. Free memory is still 978.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 332.72 ms. Allocated memory is still 1.0 GB. Free memory was 954.5 MB in the beginning and 943.8 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 23.51 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.20 ms. Allocated memory is still 1.0 GB. Free memory is still 943.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 505.30 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 132.6 MB). Free memory was 943.8 MB in the beginning and 1.1 GB in the end (delta: -165.2 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 4320.59 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 923.0 MB in the end (delta: 186.1 MB). Peak memory consumption was 186.1 MB. Max. memory is 11.5 GB. * Witness Printer took 65.42 ms. Allocated memory is still 1.2 GB. Free memory is still 923.0 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: (((2 * j <= 16 && 0 <= 2 * j) && i + 1 <= nlen) && 2 * nlen <= 4294967294) && 0 <= 2 * i - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: ((2 * nlen <= 4294967294 && 0 <= 2 * i) && 2 * i <= 4294967294) && i <= nlen + 2147483648 - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 24 locations, 1 error locations. SAFE Result, 4.2s OverallTime, 3 OverallIterations, 4 TraceHistogramMax, 1.3s AutomataDifference, 0.0s DeadEndRemovalTime, 0.6s HoareAnnotationTime, HoareTripleCheckerStatistics: 46 SDtfs, 32 SDslu, 162 SDs, 0 SdLazy, 31 SolverSat, 13 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 4 DeclaredPredicates, 63 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 28 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=40occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.5s AbstIntTime, 2 AbstIntIterations, 2 AbstIntStrong, 0.9134615384615384 AbsIntWeakeningRatio, 0.5192307692307693 AbsIntAvgWeakeningVarsNumRemoved, 3.1923076923076925 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 4 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 9 LocationsWithAnnotation, 18 PreInvPairs, 28 NumberOfFragments, 104 HoareAnnotationTreeSize, 18 FomulaSimplifications, 784 FormulaSimplificationTreeSizeReduction, 0.1s HoareSimplificationTime, 9 FomulaSimplificationsInter, 310 FormulaSimplificationTreeSizeReductionInter, 0.5s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 67 NumberOfCodeBlocks, 67 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 64 ConstructedInterpolants, 0 QuantifiedInterpolants, 3088 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 27/30 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...