./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 6b2483ed4878f440f5477fb40e4fe96958613e0f .......................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:37:58,963 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:37:58,965 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:37:58,980 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:37:58,980 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:37:58,981 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:37:58,983 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:37:58,992 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:37:58,994 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:37:58,994 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:37:58,995 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:37:58,996 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:37:58,996 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:37:58,997 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:37:58,998 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:37:58,999 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:37:59,000 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:37:59,002 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:37:59,004 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:37:59,005 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:37:59,009 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:37:59,011 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:37:59,013 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:37:59,013 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:37:59,016 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:37:59,017 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:37:59,018 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:37:59,018 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:37:59,019 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:37:59,023 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:37:59,024 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:37:59,025 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:37:59,026 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:37:59,027 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:37:59,028 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:37:59,028 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:37:59,028 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:37:59,055 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:37:59,056 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:37:59,058 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:37:59,058 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:37:59,058 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:37:59,058 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:37:59,058 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:37:59,059 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:37:59,060 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:37:59,061 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:37:59,061 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:37:59,061 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:37:59,062 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:37:59,062 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:37:59,062 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:37:59,062 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:37:59,062 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:37:59,062 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:37:59,063 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:37:59,064 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:37:59,064 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:37:59,064 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:37:59,064 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true 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/UAutomizer-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 -> Automizer 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 -> 6b2483ed4878f440f5477fb40e4fe96958613e0f [2019-01-14 17:37:59,100 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:37:59,121 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:37:59,127 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:37:59,129 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:37:59,129 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:37:59,130 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2019-01-14 17:37:59,192 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9e708e3/b503ad3034504b809ffc47fb2a5d6bf0/FLAG687d9672a [2019-01-14 17:37:59,569 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:37:59,569 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/jm2006_variant_true-unreach-call_true-termination.c.i [2019-01-14 17:37:59,575 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9e708e3/b503ad3034504b809ffc47fb2a5d6bf0/FLAG687d9672a [2019-01-14 17:37:59,972 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a9e708e3/b503ad3034504b809ffc47fb2a5d6bf0 [2019-01-14 17:37:59,975 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:37:59,976 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:37:59,977 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:37:59,977 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:37:59,980 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:37:59,981 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:59" (1/1) ... [2019-01-14 17:37:59,984 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69899fe1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:59, skipping insertion in model container [2019-01-14 17:37:59,985 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:59" (1/1) ... [2019-01-14 17:37:59,992 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:38:00,010 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:38:00,228 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:38:00,235 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:38:00,257 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:38:00,278 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:38:00,279 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00 WrapperNode [2019-01-14 17:38:00,280 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:38:00,281 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:38:00,281 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:38:00,281 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:38:00,290 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,296 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,319 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:38:00,320 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:38:00,320 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:38:00,320 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:38:00,331 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,331 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,333 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,333 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,337 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,342 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,345 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... [2019-01-14 17:38:00,351 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:38:00,351 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:38:00,352 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:38:00,352 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:38:00,353 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-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 [2019-01-14 17:38:00,470 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:38:00,470 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:38:00,802 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:38:00,802 INFO L286 CfgBuilder]: Removed 7 assue(true) statements. [2019-01-14 17:38:00,804 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:38:00 BoogieIcfgContainer [2019-01-14 17:38:00,804 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:38:00,805 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:38:00,805 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:38:00,808 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:38:00,808 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:37:59" (1/3) ... [2019-01-14 17:38:00,809 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ba42c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:38:00, skipping insertion in model container [2019-01-14 17:38:00,809 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:38:00" (2/3) ... [2019-01-14 17:38:00,810 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72ba42c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:38:00, skipping insertion in model container [2019-01-14 17:38:00,810 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:38:00" (3/3) ... [2019-01-14 17:38:00,812 INFO L112 eAbstractionObserver]: Analyzing ICFG jm2006_variant_true-unreach-call_true-termination.c.i [2019-01-14 17:38:00,819 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:38:00,827 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:38:00,842 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:38:00,873 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:38:00,873 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:38:00,874 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:38:00,874 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:38:00,874 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:38:00,874 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:38:00,874 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:38:00,874 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:38:00,874 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:38:00,887 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2019-01-14 17:38:00,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2019-01-14 17:38:00,893 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:38:00,894 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:38:00,896 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:38:00,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:38:00,902 INFO L82 PathProgramCache]: Analyzing trace with hash -1482157489, now seen corresponding path program 1 times [2019-01-14 17:38:00,904 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:38:00,905 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:38:00,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:00,950 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:38:00,950 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:00,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:38:01,286 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:38:01,288 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:38:01,289 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 17:38:01,293 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:38:01,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:38:01,305 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:38:01,306 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 5 states. [2019-01-14 17:38:01,622 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:38:01,624 INFO L93 Difference]: Finished difference Result 35 states and 42 transitions. [2019-01-14 17:38:01,625 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-01-14 17:38:01,626 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 7 [2019-01-14 17:38:01,626 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:38:01,634 INFO L225 Difference]: With dead ends: 35 [2019-01-14 17:38:01,634 INFO L226 Difference]: Without dead ends: 9 [2019-01-14 17:38:01,638 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:38:01,653 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9 states. [2019-01-14 17:38:01,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9 to 9. [2019-01-14 17:38:01,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9 states. [2019-01-14 17:38:01,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9 states to 9 states and 9 transitions. [2019-01-14 17:38:01,669 INFO L78 Accepts]: Start accepts. Automaton has 9 states and 9 transitions. Word has length 7 [2019-01-14 17:38:01,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:38:01,670 INFO L480 AbstractCegarLoop]: Abstraction has 9 states and 9 transitions. [2019-01-14 17:38:01,670 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:38:01,671 INFO L276 IsEmpty]: Start isEmpty. Operand 9 states and 9 transitions. [2019-01-14 17:38:01,671 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:38:01,671 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:38:01,671 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:38:01,672 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:38:01,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:38:01,672 INFO L82 PathProgramCache]: Analyzing trace with hash 1299363897, now seen corresponding path program 1 times [2019-01-14 17:38:01,672 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:38:01,672 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:38:01,673 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:01,674 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:38:01,674 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:01,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:38:02,063 WARN L181 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-01-14 17:38:02,077 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:38:02,078 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:38:02,078 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2019-01-14 17:38:02,091 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:38:02,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:38:02,118 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:38:02,335 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:38:02,364 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:38:02,364 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-01-14 17:38:02,365 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 17:38:02,365 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 17:38:02,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:38:02,367 INFO L87 Difference]: Start difference. First operand 9 states and 9 transitions. Second operand 9 states. [2019-01-14 17:38:02,746 WARN L181 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 24 [2019-01-14 17:38:02,814 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:38:02,815 INFO L93 Difference]: Finished difference Result 17 states and 18 transitions. [2019-01-14 17:38:02,815 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-01-14 17:38:02,815 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 8 [2019-01-14 17:38:02,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:38:02,816 INFO L225 Difference]: With dead ends: 17 [2019-01-14 17:38:02,816 INFO L226 Difference]: Without dead ends: 11 [2019-01-14 17:38:02,817 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2019-01-14 17:38:02,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2019-01-14 17:38:02,820 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2019-01-14 17:38:02,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2019-01-14 17:38:02,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 11 transitions. [2019-01-14 17:38:02,821 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 11 transitions. Word has length 8 [2019-01-14 17:38:02,821 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:38:02,822 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 11 transitions. [2019-01-14 17:38:02,822 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 17:38:02,822 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 11 transitions. [2019-01-14 17:38:02,822 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 17:38:02,822 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:38:02,823 INFO L402 BasicCegarLoop]: trace histogram [3, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:38:02,823 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:38:02,823 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:38:02,823 INFO L82 PathProgramCache]: Analyzing trace with hash -1095392519, now seen corresponding path program 2 times [2019-01-14 17:38:02,823 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:38:02,824 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:38:02,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:02,825 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:38:02,825 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:38:02,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:38:03,280 WARN L181 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 17 DAG size of output: 16 [2019-01-14 17:38:03,289 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-01-14 17:38:03,290 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 17:38:03,290 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2019-01-14 17:38:03,300 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2019-01-14 17:38:03,318 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2019-01-14 17:38:03,318 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2019-01-14 17:38:03,322 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 17:38:03,465 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:38:03,484 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 17:38:03,484 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 8] total 12 [2019-01-14 17:38:03,485 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2019-01-14 17:38:03,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2019-01-14 17:38:03,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2019-01-14 17:38:03,486 INFO L87 Difference]: Start difference. First operand 11 states and 11 transitions. Second operand 12 states. [2019-01-14 17:38:03,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:38:03,702 INFO L93 Difference]: Finished difference Result 14 states and 15 transitions. [2019-01-14 17:38:03,702 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2019-01-14 17:38:03,702 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 10 [2019-01-14 17:38:03,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:38:03,703 INFO L225 Difference]: With dead ends: 14 [2019-01-14 17:38:03,703 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:38:03,704 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2019-01-14 17:38:03,705 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:38:03,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:38:03,705 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:38:03,705 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:38:03,705 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-01-14 17:38:03,706 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:38:03,706 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:38:03,706 INFO L481 AbstractCegarLoop]: Interpolant automaton has 12 states. [2019-01-14 17:38:03,706 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:38:03,706 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:38:03,711 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:38:04,051 WARN L181 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 10 [2019-01-14 17:38:04,062 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:38:04,063 INFO L451 ceAbstractionStarter]: At program point L27(lines 10 28) the Hoare annotation is: true [2019-01-14 17:38:04,063 INFO L444 ceAbstractionStarter]: At program point L19-2(lines 19 23) the Hoare annotation is: (let ((.cse1 (+ ULTIMATE.start_main_~z~0 ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~i~0)) (.cse0 (+ ULTIMATE.start_main_~x~0 ULTIMATE.start_main_~j~0))) (and (<= .cse0 .cse1) (<= .cse1 .cse0))) [2019-01-14 17:38:04,063 INFO L448 ceAbstractionStarter]: For program point L19-3(lines 10 28) no Hoare annotation was computed. [2019-01-14 17:38:04,063 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-14 17:38:04,063 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:38:04,063 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:38:04,064 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:38:04,064 INFO L451 ceAbstractionStarter]: At program point L24(lines 24 26) the Hoare annotation is: true [2019-01-14 17:38:04,064 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-01-14 17:38:04,064 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:38:04,064 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:38:04,076 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:38:04 BoogieIcfgContainer [2019-01-14 17:38:04,076 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:38:04,077 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:38:04,077 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:38:04,077 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:38:04,078 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:38:00" (3/4) ... [2019-01-14 17:38:04,081 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:38:04,091 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:38:04,091 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:38:04,144 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:38:04,144 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:38:04,148 INFO L168 Benchmark]: Toolchain (without parser) took 4172.45 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 951.4 MB in the beginning and 968.7 MB in the end (delta: -17.3 MB). Peak memory consumption was 112.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:38:04,149 INFO L168 Benchmark]: CDTParser took 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:38:04,150 INFO L168 Benchmark]: CACSL2BoogieTranslator took 303.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:38:04,153 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.01 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:38:04,154 INFO L168 Benchmark]: Boogie Preprocessor took 31.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:38:04,154 INFO L168 Benchmark]: RCFGBuilder took 452.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:38:04,155 INFO L168 Benchmark]: TraceAbstraction took 3271.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.7 MB in the end (delta: 136.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:38:04,155 INFO L168 Benchmark]: Witness Printer took 67.38 ms. Allocated memory is still 1.2 GB. Free memory is still 968.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:38:04,164 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.72 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 303.32 ms. Allocated memory is still 1.0 GB. Free memory was 951.4 MB in the beginning and 940.6 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 39.01 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.14 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 452.90 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.0 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3271.35 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 968.7 MB in the end (delta: 136.9 MB). Peak memory consumption was 136.9 MB. Max. memory is 11.5 GB. * Witness Printer took 67.38 ms. Allocated memory is still 1.2 GB. Free memory is still 968.7 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: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 19]: Loop Invariant Derived loop invariant: x + j <= z + y + i && z + y + i <= x + j - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 3.2s OverallTime, 3 OverallIterations, 3 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.3s HoareAnnotationTime, HoareTripleCheckerStatistics: 23 SDtfs, 40 SDslu, 42 SDs, 0 SdLazy, 116 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 45 GetRequests, 13 SyntacticMatches, 2 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 1.8s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=12occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 15 NumberOfFragments, 19 HoareAnnotationTreeSize, 3 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 101 FormulaSimplificationTreeSizeReductionInter, 0.3s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 43 NumberOfCodeBlocks, 43 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 38 ConstructedInterpolants, 0 QuantifiedInterpolants, 2692 SizeOfPredicates, 14 NumberOfNonLiveVariables, 88 ConjunctsInSsa, 56 ConjunctsInUnsatCore, 5 InterpolantComputations, 1 PerfectInterpolantSequences, 1/14 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...