./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/for_bounded_loop1_false-unreach-call_true-termination.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/loops/for_bounded_loop1_false-unreach-call_true-termination.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 0ab550a6e9aa370752671d7ad69781384c889e75 ........................................................................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 16:59:15,038 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 16:59:15,041 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 16:59:15,057 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 16:59:15,058 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 16:59:15,060 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 16:59:15,062 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 16:59:15,065 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 16:59:15,067 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 16:59:15,069 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 16:59:15,072 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 16:59:15,073 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 16:59:15,074 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 16:59:15,077 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 16:59:15,081 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 16:59:15,088 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 16:59:15,089 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 16:59:15,090 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 16:59:15,092 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 16:59:15,093 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 16:59:15,094 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 16:59:15,095 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 16:59:15,100 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 16:59:15,100 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 16:59:15,101 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 16:59:15,102 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 16:59:15,104 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 16:59:15,108 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 16:59:15,109 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 16:59:15,113 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 16:59:15,113 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 16:59:15,114 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 16:59:15,114 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 16:59:15,114 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 16:59:15,116 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 16:59:15,117 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 16:59:15,117 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 16:59:15,149 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 16:59:15,149 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 16:59:15,150 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 16:59:15,150 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 16:59:15,150 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 16:59:15,151 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 16:59:15,152 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 16:59:15,152 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 16:59:15,152 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 16:59:15,152 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 16:59:15,152 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 16:59:15,153 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 16:59:15,153 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 16:59:15,153 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 16:59:15,153 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 16:59:15,153 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 16:59:15,153 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 16:59:15,154 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 16:59:15,155 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 16:59:15,155 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 16:59:15,156 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 16:59:15,156 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 16:59:15,156 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 16:59:15,156 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 16:59:15,156 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 16:59:15,156 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 16:59:15,157 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 16:59:15,157 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 -> 0ab550a6e9aa370752671d7ad69781384c889e75 [2019-01-14 16:59:15,223 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 16:59:15,243 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 16:59:15,247 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 16:59:15,248 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 16:59:15,249 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 16:59:15,250 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2019-01-14 16:59:15,304 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb9f0219/e5d86336eb384c62bee340b75bc5c5bf/FLAGbfcc4dd78 [2019-01-14 16:59:15,728 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 16:59:15,729 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/for_bounded_loop1_false-unreach-call_true-termination.i [2019-01-14 16:59:15,735 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb9f0219/e5d86336eb384c62bee340b75bc5c5bf/FLAGbfcc4dd78 [2019-01-14 16:59:16,109 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2bb9f0219/e5d86336eb384c62bee340b75bc5c5bf [2019-01-14 16:59:16,113 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 16:59:16,114 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 16:59:16,115 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 16:59:16,116 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 16:59:16,120 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 16:59:16,121 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,125 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@38fc82f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16, skipping insertion in model container [2019-01-14 16:59:16,126 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,136 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 16:59:16,159 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 16:59:16,380 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:59:16,385 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 16:59:16,406 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 16:59:16,420 INFO L195 MainTranslator]: Completed translation [2019-01-14 16:59:16,421 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16 WrapperNode [2019-01-14 16:59:16,421 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 16:59:16,422 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 16:59:16,423 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 16:59:16,423 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 16:59:16,433 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,438 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,467 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 16:59:16,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 16:59:16,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 16:59:16,468 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 16:59:16,480 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,480 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,482 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,482 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,485 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,492 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,498 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (1/1) ... [2019-01-14 16:59:16,500 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 16:59:16,501 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 16:59:16,501 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 16:59:16,501 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 16:59:16,502 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (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 16:59:16,627 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 16:59:16,627 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 16:59:16,956 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 16:59:16,956 INFO L286 CfgBuilder]: Removed 11 assue(true) statements. [2019-01-14 16:59:16,957 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:16 BoogieIcfgContainer [2019-01-14 16:59:16,957 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 16:59:16,958 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 16:59:16,958 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 16:59:16,961 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 16:59:16,961 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 04:59:16" (1/3) ... [2019-01-14 16:59:16,962 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559b400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:59:16, skipping insertion in model container [2019-01-14 16:59:16,962 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 04:59:16" (2/3) ... [2019-01-14 16:59:16,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@559b400 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 04:59:16, skipping insertion in model container [2019-01-14 16:59:16,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:16" (3/3) ... [2019-01-14 16:59:16,965 INFO L112 eAbstractionObserver]: Analyzing ICFG for_bounded_loop1_false-unreach-call_true-termination.i [2019-01-14 16:59:16,975 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 16:59:16,983 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 3 error locations. [2019-01-14 16:59:17,001 INFO L257 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2019-01-14 16:59:17,037 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 16:59:17,037 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 16:59:17,037 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 16:59:17,038 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 16:59:17,038 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 16:59:17,038 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 16:59:17,038 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 16:59:17,038 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 16:59:17,038 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 16:59:17,053 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states. [2019-01-14 16:59:17,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2019-01-14 16:59:17,060 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:59:17,061 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2019-01-14 16:59:17,063 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:59:17,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:59:17,070 INFO L82 PathProgramCache]: Analyzing trace with hash 29745418, now seen corresponding path program 1 times [2019-01-14 16:59:17,072 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:59:17,073 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:59:17,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,112 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:17,112 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:59:17,260 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 16:59:17,263 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:59:17,263 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 16:59:17,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-14 16:59:17,278 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-14 16:59:17,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 16:59:17,281 INFO L87 Difference]: Start difference. First operand 19 states. Second operand 4 states. [2019-01-14 16:59:17,388 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:59:17,388 INFO L93 Difference]: Finished difference Result 50 states and 64 transitions. [2019-01-14 16:59:17,388 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-14 16:59:17,390 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 5 [2019-01-14 16:59:17,390 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:59:17,401 INFO L225 Difference]: With dead ends: 50 [2019-01-14 16:59:17,401 INFO L226 Difference]: Without dead ends: 24 [2019-01-14 16:59:17,405 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-14 16:59:17,420 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2019-01-14 16:59:17,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 18. [2019-01-14 16:59:17,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 16:59:17,436 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 19 transitions. [2019-01-14 16:59:17,438 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 19 transitions. Word has length 5 [2019-01-14 16:59:17,439 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:59:17,439 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 19 transitions. [2019-01-14 16:59:17,439 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-14 16:59:17,439 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 19 transitions. [2019-01-14 16:59:17,439 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2019-01-14 16:59:17,440 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:59:17,440 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2019-01-14 16:59:17,440 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:59:17,440 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:59:17,440 INFO L82 PathProgramCache]: Analyzing trace with hash 922077226, now seen corresponding path program 1 times [2019-01-14 16:59:17,441 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:59:17,442 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:59:17,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,443 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:17,443 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:59:17,475 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 16:59:17,475 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:59:17,475 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-14 16:59:17,477 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-14 16:59:17,478 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-14 16:59:17,478 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:59:17,478 INFO L87 Difference]: Start difference. First operand 18 states and 19 transitions. Second operand 3 states. [2019-01-14 16:59:17,523 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:59:17,523 INFO L93 Difference]: Finished difference Result 22 states and 22 transitions. [2019-01-14 16:59:17,524 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-14 16:59:17,524 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 6 [2019-01-14 16:59:17,525 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:59:17,525 INFO L225 Difference]: With dead ends: 22 [2019-01-14 16:59:17,525 INFO L226 Difference]: Without dead ends: 18 [2019-01-14 16:59:17,526 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-14 16:59:17,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18 states. [2019-01-14 16:59:17,530 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18 to 18. [2019-01-14 16:59:17,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 18 states. [2019-01-14 16:59:17,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18 states to 18 states and 18 transitions. [2019-01-14 16:59:17,531 INFO L78 Accepts]: Start accepts. Automaton has 18 states and 18 transitions. Word has length 6 [2019-01-14 16:59:17,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:59:17,531 INFO L480 AbstractCegarLoop]: Abstraction has 18 states and 18 transitions. [2019-01-14 16:59:17,532 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-14 16:59:17,532 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states and 18 transitions. [2019-01-14 16:59:17,532 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 16:59:17,532 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:59:17,532 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:59:17,533 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:59:17,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:59:17,533 INFO L82 PathProgramCache]: Analyzing trace with hash 1387310901, now seen corresponding path program 1 times [2019-01-14 16:59:17,533 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:59:17,533 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:59:17,534 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,535 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:17,535 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:17,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:59:17,777 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 16:59:17,777 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 16:59:17,777 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-01-14 16:59:17,778 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-01-14 16:59:17,778 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-01-14 16:59:17,778 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-01-14 16:59:17,778 INFO L87 Difference]: Start difference. First operand 18 states and 18 transitions. Second operand 6 states. [2019-01-14 16:59:18,017 WARN L181 SmtUtils]: Spent 191.00 ms on a formula simplification. DAG size of input: 12 DAG size of output: 8 [2019-01-14 16:59:18,101 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:59:18,101 INFO L93 Difference]: Finished difference Result 18 states and 18 transitions. [2019-01-14 16:59:18,103 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 16:59:18,103 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 8 [2019-01-14 16:59:18,104 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:59:18,104 INFO L225 Difference]: With dead ends: 18 [2019-01-14 16:59:18,107 INFO L226 Difference]: Without dead ends: 16 [2019-01-14 16:59:18,109 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2019-01-14 16:59:18,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16 states. [2019-01-14 16:59:18,116 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16 to 16. [2019-01-14 16:59:18,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16 states. [2019-01-14 16:59:18,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16 states to 16 states and 16 transitions. [2019-01-14 16:59:18,119 INFO L78 Accepts]: Start accepts. Automaton has 16 states and 16 transitions. Word has length 8 [2019-01-14 16:59:18,120 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:59:18,120 INFO L480 AbstractCegarLoop]: Abstraction has 16 states and 16 transitions. [2019-01-14 16:59:18,121 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-01-14 16:59:18,121 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states and 16 transitions. [2019-01-14 16:59:18,121 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2019-01-14 16:59:18,121 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:59:18,122 INFO L402 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:59:18,123 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:59:18,123 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:59:18,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1086397575, now seen corresponding path program 1 times [2019-01-14 16:59:18,125 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:59:18,125 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:59:18,126 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:18,126 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:18,127 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:18,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:59:18,358 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 1 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:59:18,359 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-01-14 16:59:18,359 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 16:59:18,369 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:18,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 16:59:18,398 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2019-01-14 16:59:18,862 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 16:59:18,883 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-01-14 16:59:18,883 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 6] total 9 [2019-01-14 16:59:18,883 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-01-14 16:59:18,883 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-01-14 16:59:18,884 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2019-01-14 16:59:18,884 INFO L87 Difference]: Start difference. First operand 16 states and 16 transitions. Second operand 9 states. [2019-01-14 16:59:19,183 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 16:59:19,184 INFO L93 Difference]: Finished difference Result 17 states and 17 transitions. [2019-01-14 16:59:19,185 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-01-14 16:59:19,185 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 11 [2019-01-14 16:59:19,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 16:59:19,186 INFO L225 Difference]: With dead ends: 17 [2019-01-14 16:59:19,186 INFO L226 Difference]: Without dead ends: 15 [2019-01-14 16:59:19,187 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 14 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2019-01-14 16:59:19,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15 states. [2019-01-14 16:59:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15 to 13. [2019-01-14 16:59:19,192 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 13 states. [2019-01-14 16:59:19,193 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13 states to 13 states and 13 transitions. [2019-01-14 16:59:19,193 INFO L78 Accepts]: Start accepts. Automaton has 13 states and 13 transitions. Word has length 11 [2019-01-14 16:59:19,193 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 16:59:19,194 INFO L480 AbstractCegarLoop]: Abstraction has 13 states and 13 transitions. [2019-01-14 16:59:19,194 INFO L481 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-01-14 16:59:19,194 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states and 13 transitions. [2019-01-14 16:59:19,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2019-01-14 16:59:19,195 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 16:59:19,196 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 16:59:19,196 INFO L423 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 16:59:19,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 16:59:19,197 INFO L82 PathProgramCache]: Analyzing trace with hash 681382811, now seen corresponding path program 1 times [2019-01-14 16:59:19,197 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 16:59:19,197 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 16:59:19,199 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:19,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 16:59:19,200 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 16:59:19,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 16:59:19,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-01-14 16:59:19,278 INFO L469 BasicCegarLoop]: Counterexample might be feasible [2019-01-14 16:59:19,300 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 04:59:19 BoogieIcfgContainer [2019-01-14 16:59:19,300 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 16:59:19,301 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 16:59:19,301 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 16:59:19,301 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 16:59:19,302 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 04:59:16" (3/4) ... [2019-01-14 16:59:19,305 INFO L138 WitnessPrinter]: Generating witness for reachability counterexample [2019-01-14 16:59:19,380 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 16:59:19,380 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 16:59:19,381 INFO L168 Benchmark]: Toolchain (without parser) took 3268.02 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 951.4 MB in the beginning and 995.7 MB in the end (delta: -44.3 MB). Peak memory consumption was 65.3 MB. Max. memory is 11.5 GB. [2019-01-14 16:59:19,383 INFO L168 Benchmark]: CDTParser took 0.44 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 16:59:19,383 INFO L168 Benchmark]: CACSL2BoogieTranslator took 305.86 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 16:59:19,384 INFO L168 Benchmark]: Boogie Procedure Inliner took 45.29 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 16:59:19,385 INFO L168 Benchmark]: Boogie Preprocessor took 32.27 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 16:59:19,385 INFO L168 Benchmark]: RCFGBuilder took 456.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2019-01-14 16:59:19,386 INFO L168 Benchmark]: TraceAbstraction took 2342.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.7 MB in the end (delta: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 11.5 GB. [2019-01-14 16:59:19,387 INFO L168 Benchmark]: Witness Printer took 79.89 ms. Allocated memory is still 1.1 GB. Free memory is still 995.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 16:59:19,391 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.44 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 305.86 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 45.29 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 32.27 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 456.96 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 109.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -143.4 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2342.03 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 995.7 MB in the end (delta: 88.4 MB). Peak memory consumption was 88.4 MB. Max. memory is 11.5 GB. * Witness Printer took 79.89 ms. Allocated memory is still 1.1 GB. Free memory is still 995.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 6]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L14] int i=0, x=0, y=0; [L15] int n=__VERIFIER_nondet_int(); [L16] COND FALSE !(!(n>0)) [L17] i=0 [L17] COND TRUE i