./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c --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-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c -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 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 ................................................................................................................................................................................................................................................................................................................................................. 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 17:37:28,346 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:37:28,348 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:37:28,363 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:37:28,364 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:37:28,365 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:37:28,369 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:37:28,371 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:37:28,373 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:37:28,374 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:37:28,375 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:37:28,375 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:37:28,376 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:37:28,377 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:37:28,378 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:37:28,379 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:37:28,380 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:37:28,382 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:37:28,385 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:37:28,386 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:37:28,387 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:37:28,389 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:37:28,391 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:37:28,391 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:37:28,392 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:37:28,392 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:37:28,393 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:37:28,395 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:37:28,395 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:37:28,397 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:37:28,397 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:37:28,398 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:37:28,398 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:37:28,398 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:37:28,400 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:37:28,400 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:37:28,401 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:37:28,416 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:37:28,416 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:37:28,417 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:37:28,417 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:37:28,417 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:37:28,418 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:37:28,418 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:37:28,419 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:37:28,420 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:37:28,420 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:37:28,420 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:37:28,420 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:37:28,420 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:37:28,420 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:37:28,421 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:37:28,422 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:37:28,423 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:37:28,423 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:37:28,423 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:37:28,423 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:37:28,423 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:37:28,423 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:37:28,424 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 -> 3a2a393a9ddf4e804da7e673ce8e35167b1ee471 [2019-01-14 17:37:28,459 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:37:28,471 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:37:28,474 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:37:28,476 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:37:28,476 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:37:28,477 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2019-01-14 17:37:28,530 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a6c499d/1e0ef31ab9e2485eb2e2aaef4c060709/FLAGcd684f421 [2019-01-14 17:37:28,953 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:37:28,954 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/id_build_true-unreach-call.i.v+lhb-reducer.c [2019-01-14 17:37:28,962 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a6c499d/1e0ef31ab9e2485eb2e2aaef4c060709/FLAGcd684f421 [2019-01-14 17:37:29,338 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a5a6c499d/1e0ef31ab9e2485eb2e2aaef4c060709 [2019-01-14 17:37:29,342 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:37:29,344 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:37:29,346 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:37:29,346 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:37:29,350 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:37:29,350 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,354 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@19c23ff7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29, skipping insertion in model container [2019-01-14 17:37:29,354 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,362 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:37:29,387 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:37:29,601 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:37:29,607 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:37:29,640 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:37:29,657 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:37:29,658 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29 WrapperNode [2019-01-14 17:37:29,658 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:37:29,660 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:37:29,660 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:37:29,660 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:37:29,669 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,677 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,699 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:37:29,700 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:37:29,700 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:37:29,700 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:37:29,710 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,710 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,711 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,711 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,714 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,717 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,718 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (1/1) ... [2019-01-14 17:37:29,720 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:37:29,720 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:37:29,721 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:37:29,721 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:37:29,722 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (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 17:37:29,837 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:37:29,837 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:37:30,103 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:37:30,103 INFO L286 CfgBuilder]: Removed 4 assue(true) statements. [2019-01-14 17:37:30,105 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:30 BoogieIcfgContainer [2019-01-14 17:37:30,105 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:37:30,106 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:37:30,107 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:37:30,110 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:37:30,110 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:37:29" (1/3) ... [2019-01-14 17:37:30,111 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719d13fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:37:30, skipping insertion in model container [2019-01-14 17:37:30,111 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:37:29" (2/3) ... [2019-01-14 17:37:30,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@719d13fb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:37:30, skipping insertion in model container [2019-01-14 17:37:30,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:30" (3/3) ... [2019-01-14 17:37:30,115 INFO L112 eAbstractionObserver]: Analyzing ICFG id_build_true-unreach-call.i.v+lhb-reducer.c [2019-01-14 17:37:30,131 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:37:30,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 17:37:30,175 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 17:37:30,210 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:37:30,211 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:37:30,211 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:37:30,212 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:37:30,212 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:37:30,212 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:37:30,212 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:37:30,212 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:37:30,212 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:37:30,229 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-01-14 17:37:30,236 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 17:37:30,236 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:30,237 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 17:37:30,240 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:30,245 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:30,246 INFO L82 PathProgramCache]: Analyzing trace with hash 889538503, now seen corresponding path program 1 times [2019-01-14 17:37:30,248 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:30,249 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:30,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:30,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:30,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:30,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:30,393 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 17:37:30,395 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:37:30,395 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-14 17:37:30,399 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 17:37:30,411 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 17:37:30,411 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 17:37:30,415 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-01-14 17:37:30,739 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:30,739 INFO L93 Difference]: Finished difference Result 25 states and 29 transitions. [2019-01-14 17:37:30,740 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:37:30,741 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 6 [2019-01-14 17:37:30,742 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:30,751 INFO L225 Difference]: With dead ends: 25 [2019-01-14 17:37:30,751 INFO L226 Difference]: Without dead ends: 14 [2019-01-14 17:37:30,754 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:37:30,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2019-01-14 17:37:30,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2019-01-14 17:37:30,781 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2019-01-14 17:37:30,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2019-01-14 17:37:30,784 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 6 [2019-01-14 17:37:30,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:30,784 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2019-01-14 17:37:30,784 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 17:37:30,784 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2019-01-14 17:37:30,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:37:30,785 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:30,785 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:37:30,786 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:30,786 INFO L82 PathProgramCache]: Analyzing trace with hash 148134121, now seen corresponding path program 1 times [2019-01-14 17:37:30,786 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:30,787 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:30,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:30,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:30,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:30,796 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:30,922 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 17:37:30,922 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:37:30,923 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-14 17:37:30,925 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 17:37:30,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 17:37:30,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2019-01-14 17:37:30,926 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand 6 states. [2019-01-14 17:37:31,199 WARN L181 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 12 [2019-01-14 17:37:31,303 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:31,303 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2019-01-14 17:37:31,304 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 17:37:31,304 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-01-14 17:37:31,304 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:31,305 INFO L225 Difference]: With dead ends: 15 [2019-01-14 17:37:31,305 INFO L226 Difference]: Without dead ends: 13 [2019-01-14 17:37:31,306 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=43, Unknown=0, NotChecked=0, Total=72 [2019-01-14 17:37:31,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13 states. [2019-01-14 17:37:31,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13 to 12. [2019-01-14 17:37:31,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12 states. [2019-01-14 17:37:31,309 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12 states to 12 states and 14 transitions. [2019-01-14 17:37:31,309 INFO L78 Accepts]: Start accepts. Automaton has 12 states and 14 transitions. Word has length 8 [2019-01-14 17:37:31,309 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:31,309 INFO L480 AbstractCegarLoop]: Abstraction has 12 states and 14 transitions. [2019-01-14 17:37:31,309 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 17:37:31,309 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states and 14 transitions. [2019-01-14 17:37:31,310 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2019-01-14 17:37:31,310 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:37:31,310 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:37:31,310 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:37:31,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:37:31,311 INFO L82 PathProgramCache]: Analyzing trace with hash 623096429, now seen corresponding path program 1 times [2019-01-14 17:37:31,311 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:37:31,311 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:37:31,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:31,312 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:37:31,312 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:37:31,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:37:31,419 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 17:37:31,422 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:37:31,422 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 17:37:31,422 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:37:31,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:37:31,423 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:37:31,423 INFO L87 Difference]: Start difference. First operand 12 states and 14 transitions. Second operand 5 states. [2019-01-14 17:37:31,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:37:31,680 INFO L93 Difference]: Finished difference Result 21 states and 27 transitions. [2019-01-14 17:37:31,681 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 17:37:31,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2019-01-14 17:37:31,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:37:31,682 INFO L225 Difference]: With dead ends: 21 [2019-01-14 17:37:31,682 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:37:31,683 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2019-01-14 17:37:31,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:37:31,683 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:37:31,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:37:31,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:37:31,686 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2019-01-14 17:37:31,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:37:31,686 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:37:31,687 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:37:31,687 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:37:31,687 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:37:31,695 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:37:31,831 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:37:31,832 INFO L444 ceAbstractionStarter]: At program point L64(lines 34 84) the Hoare annotation is: (and (<= 0 ULTIMATE.start_main_~main__i~0) (= 1 ULTIMATE.start_main_~__VERIFIER_assert__cond~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0)) [2019-01-14 17:37:31,832 INFO L451 ceAbstractionStarter]: At program point L95(lines 8 97) the Hoare annotation is: true [2019-01-14 17:37:31,832 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2019-01-14 17:37:31,832 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 91) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point L71(lines 71 80) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 30) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point L30(line 30) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:37:31,833 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:37:31,834 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 84) no Hoare annotation was computed. [2019-01-14 17:37:31,834 INFO L448 ceAbstractionStarter]: For program point L59(line 59) no Hoare annotation was computed. [2019-01-14 17:37:31,834 INFO L444 ceAbstractionStarter]: At program point L90(lines 9 97) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~main__i~0) [2019-01-14 17:37:31,834 INFO L448 ceAbstractionStarter]: For program point L57(lines 57 65) no Hoare annotation was computed. [2019-01-14 17:37:31,834 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2019-01-14 17:37:31,834 INFO L444 ceAbstractionStarter]: At program point L74(lines 47 82) the Hoare annotation is: (and (= ULTIMATE.start_main_~__VERIFIER_assert__cond~0 1) (not (= ULTIMATE.start_main_~__VERIFIER_assert__cond~1 0)) (<= 0 ULTIMATE.start_main_~main__i~0) (< ULTIMATE.start_main_~main__i~0 ULTIMATE.start_main_~main__nlen~0)) [2019-01-14 17:37:31,835 INFO L448 ceAbstractionStarter]: For program point L41(lines 41 82) no Hoare annotation was computed. [2019-01-14 17:37:31,835 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION(line 59) no Hoare annotation was computed. [2019-01-14 17:37:31,848 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:37:31 BoogieIcfgContainer [2019-01-14 17:37:31,848 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:37:31,849 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:37:31,849 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:37:31,849 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:37:31,850 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:37:30" (3/4) ... [2019-01-14 17:37:31,853 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:37:31,863 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-14 17:37:31,863 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:37:31,920 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:37:31,920 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:37:31,921 INFO L168 Benchmark]: Toolchain (without parser) took 2577.92 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 951.4 MB in the beginning and 1.1 GB in the end (delta: -103.8 MB). Peak memory consumption was 42.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:31,922 INFO L168 Benchmark]: CDTParser took 0.14 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 17:37:31,922 INFO L168 Benchmark]: CACSL2BoogieTranslator took 313.45 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 17:37:31,923 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.72 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 17:37:31,924 INFO L168 Benchmark]: Boogie Preprocessor took 20.60 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:31,924 INFO L168 Benchmark]: RCFGBuilder took 384.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:31,925 INFO L168 Benchmark]: TraceAbstraction took 1741.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:37:31,926 INFO L168 Benchmark]: Witness Printer took 71.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:37:31,930 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 313.45 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 39.72 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 20.60 ms. Allocated memory is still 1.0 GB. Free memory was 940.6 MB in the beginning and 935.3 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 384.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 146.3 MB). Free memory was 935.3 MB in the beginning and 1.1 GB in the end (delta: -186.2 MB). Peak memory consumption was 13.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1741.91 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. * Witness Printer took 71.33 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 59]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - PositiveResult [Line: 30]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 3 specifications checked. All of them hold - InvariantResult [Line: 8]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 9]: Loop Invariant Derived loop invariant: 0 <= main__i - InvariantResult [Line: 47]: Loop Invariant Derived loop invariant: ((__VERIFIER_assert__cond == 1 && !(__VERIFIER_assert__cond == 0)) && 0 <= main__i) && main__i < main__nlen - InvariantResult [Line: 34]: Loop Invariant Derived loop invariant: (0 <= main__i && 1 == __VERIFIER_assert__cond) && main__i < main__nlen - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 19 locations, 3 error locations. SAFE Result, 1.6s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.9s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 28 SDtfs, 64 SDslu, 20 SDs, 0 SdLazy, 65 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 23 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred 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, 1 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 11 NumberOfFragments, 28 HoareAnnotationTreeSize, 4 FomulaSimplifications, 140 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 33 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 24 NumberOfCodeBlocks, 24 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 605 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...