./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-lit/afnp2014_true-unreach-call_true-termination.c.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 2e94e6aa 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/afnp2014_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 d51c6cc706e0ce829ba547908cd819c55d1b3081 .......................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-2e94e6a [2018-12-31 06:14:00,107 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 06:14:00,109 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 06:14:00,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 06:14:00,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 06:14:00,128 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 06:14:00,132 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 06:14:00,138 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 06:14:00,140 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 06:14:00,145 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 06:14:00,146 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 06:14:00,146 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 06:14:00,147 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 06:14:00,151 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 06:14:00,152 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 06:14:00,156 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 06:14:00,157 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 06:14:00,159 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 06:14:00,166 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 06:14:00,168 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 06:14:00,169 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 06:14:00,174 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 06:14:00,180 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 06:14:00,180 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 06:14:00,180 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 06:14:00,184 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 06:14:00,185 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 06:14:00,189 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 06:14:00,190 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 06:14:00,191 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 06:14:00,194 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 06:14:00,195 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 06:14:00,195 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 06:14:00,195 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 06:14:00,196 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 06:14:00,198 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 06:14:00,199 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 06:14:00,225 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 06:14:00,226 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 06:14:00,227 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 06:14:00,227 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 06:14:00,228 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 06:14:00,228 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 06:14:00,229 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 06:14:00,230 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 06:14:00,230 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 06:14:00,230 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 06:14:00,230 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 06:14:00,231 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 06:14:00,231 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 06:14:00,231 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 06:14:00,231 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 06:14:00,231 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 06:14:00,231 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 06:14:00,232 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 06:14:00,232 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 06:14:00,232 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 06:14:00,232 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 06:14:00,232 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 06:14:00,232 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 06:14:00,234 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 -> d51c6cc706e0ce829ba547908cd819c55d1b3081 [2018-12-31 06:14:00,285 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 06:14:00,298 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 06:14:00,301 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 06:14:00,303 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 06:14:00,303 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 06:14:00,304 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-12-31 06:14:00,373 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5972cf1ba/a01dfc9391f94090be5528d24adc4f4f/FLAG1dd6c40f5 [2018-12-31 06:14:00,849 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 06:14:00,850 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-lit/afnp2014_true-unreach-call_true-termination.c.i [2018-12-31 06:14:00,857 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5972cf1ba/a01dfc9391f94090be5528d24adc4f4f/FLAG1dd6c40f5 [2018-12-31 06:14:01,231 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5972cf1ba/a01dfc9391f94090be5528d24adc4f4f [2018-12-31 06:14:01,235 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 06:14:01,237 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 06:14:01,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 06:14:01,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 06:14:01,242 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 06:14:01,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,246 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@453557c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01, skipping insertion in model container [2018-12-31 06:14:01,246 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,255 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 06:14:01,273 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 06:14:01,454 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:14:01,458 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 06:14:01,475 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 06:14:01,489 INFO L195 MainTranslator]: Completed translation [2018-12-31 06:14:01,489 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01 WrapperNode [2018-12-31 06:14:01,489 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 06:14:01,490 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 06:14:01,490 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 06:14:01,490 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 06:14:01,501 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,507 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,528 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 06:14:01,528 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 06:14:01,528 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 06:14:01,529 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 06:14:01,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,540 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,540 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,541 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,544 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,549 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (1/1) ... [2018-12-31 06:14:01,551 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 06:14:01,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 06:14:01,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 06:14:01,552 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 06:14:01,553 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (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 [2018-12-31 06:14:01,671 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 06:14:01,671 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 06:14:01,863 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 06:14:01,863 INFO L280 CfgBuilder]: Removed 7 assue(true) statements. [2018-12-31 06:14:01,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:01 BoogieIcfgContainer [2018-12-31 06:14:01,864 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 06:14:01,865 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 06:14:01,865 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 06:14:01,868 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 06:14:01,868 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 06:14:01" (1/3) ... [2018-12-31 06:14:01,869 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134f5515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:14:01, skipping insertion in model container [2018-12-31 06:14:01,869 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 06:14:01" (2/3) ... [2018-12-31 06:14:01,870 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@134f5515 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 06:14:01, skipping insertion in model container [2018-12-31 06:14:01,870 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:01" (3/3) ... [2018-12-31 06:14:01,872 INFO L112 eAbstractionObserver]: Analyzing ICFG afnp2014_true-unreach-call_true-termination.c.i [2018-12-31 06:14:01,882 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 06:14:01,890 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 06:14:01,907 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 06:14:01,935 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 06:14:01,936 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 06:14:01,936 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 06:14:01,936 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 06:14:01,937 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 06:14:01,937 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 06:14:01,937 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 06:14:01,937 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 06:14:01,937 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 06:14:01,950 INFO L276 IsEmpty]: Start isEmpty. Operand 12 states. [2018-12-31 06:14:01,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 6 [2018-12-31 06:14:01,956 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:01,957 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1] [2018-12-31 06:14:01,959 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:01,965 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:01,965 INFO L82 PathProgramCache]: Analyzing trace with hash 30139652, now seen corresponding path program 1 times [2018-12-31 06:14:01,967 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:01,967 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:02,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,011 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:02,011 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:02,059 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:02,061 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 06:14:02,061 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2018-12-31 06:14:02,065 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2018-12-31 06:14:02,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2018-12-31 06:14:02,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 06:14:02,085 INFO L87 Difference]: Start difference. First operand 12 states. Second operand 2 states. [2018-12-31 06:14:02,108 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:02,108 INFO L93 Difference]: Finished difference Result 20 states and 23 transitions. [2018-12-31 06:14:02,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2018-12-31 06:14:02,111 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 5 [2018-12-31 06:14:02,111 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:02,123 INFO L225 Difference]: With dead ends: 20 [2018-12-31 06:14:02,123 INFO L226 Difference]: Without dead ends: 8 [2018-12-31 06:14:02,128 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2018-12-31 06:14:02,151 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8 states. [2018-12-31 06:14:02,165 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8 to 8. [2018-12-31 06:14:02,166 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 8 states. [2018-12-31 06:14:02,167 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8 states to 8 states and 9 transitions. [2018-12-31 06:14:02,170 INFO L78 Accepts]: Start accepts. Automaton has 8 states and 9 transitions. Word has length 5 [2018-12-31 06:14:02,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:02,171 INFO L480 AbstractCegarLoop]: Abstraction has 8 states and 9 transitions. [2018-12-31 06:14:02,171 INFO L481 AbstractCegarLoop]: Interpolant automaton has 2 states. [2018-12-31 06:14:02,171 INFO L276 IsEmpty]: Start isEmpty. Operand 8 states and 9 transitions. [2018-12-31 06:14:02,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2018-12-31 06:14:02,171 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:02,172 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1] [2018-12-31 06:14:02,172 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:02,172 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:02,172 INFO L82 PathProgramCache]: Analyzing trace with hash -1484098869, now seen corresponding path program 1 times [2018-12-31 06:14:02,174 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:02,174 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:02,176 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,177 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:02,177 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:02,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:02,358 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 06:14:02,359 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2018-12-31 06:14:02,361 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 06:14:02,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 06:14:02,362 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2018-12-31 06:14:02,362 INFO L87 Difference]: Start difference. First operand 8 states and 9 transitions. Second operand 4 states. [2018-12-31 06:14:02,693 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:02,693 INFO L93 Difference]: Finished difference Result 15 states and 17 transitions. [2018-12-31 06:14:02,693 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 06:14:02,694 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 7 [2018-12-31 06:14:02,694 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:02,694 INFO L225 Difference]: With dead ends: 15 [2018-12-31 06:14:02,695 INFO L226 Difference]: Without dead ends: 11 [2018-12-31 06:14:02,696 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2018-12-31 06:14:02,697 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11 states. [2018-12-31 06:14:02,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11 to 11. [2018-12-31 06:14:02,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11 states. [2018-12-31 06:14:02,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11 states to 11 states and 13 transitions. [2018-12-31 06:14:02,701 INFO L78 Accepts]: Start accepts. Automaton has 11 states and 13 transitions. Word has length 7 [2018-12-31 06:14:02,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:02,701 INFO L480 AbstractCegarLoop]: Abstraction has 11 states and 13 transitions. [2018-12-31 06:14:02,701 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 06:14:02,701 INFO L276 IsEmpty]: Start isEmpty. Operand 11 states and 13 transitions. [2018-12-31 06:14:02,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2018-12-31 06:14:02,703 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:02,703 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1] [2018-12-31 06:14:02,703 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:02,703 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:02,704 INFO L82 PathProgramCache]: Analyzing trace with hash 935349177, now seen corresponding path program 1 times [2018-12-31 06:14:02,704 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:02,704 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:02,705 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:02,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:02,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:02,811 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:02,812 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:14:02,812 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 [2018-12-31 06:14:02,823 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:02,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:02,859 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:14:02,902 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:02,927 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:14:02,927 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2018-12-31 06:14:02,927 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2018-12-31 06:14:02,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2018-12-31 06:14:02,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2018-12-31 06:14:02,928 INFO L87 Difference]: Start difference. First operand 11 states and 13 transitions. Second operand 5 states. [2018-12-31 06:14:03,063 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:03,063 INFO L93 Difference]: Finished difference Result 18 states and 21 transitions. [2018-12-31 06:14:03,064 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2018-12-31 06:14:03,064 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 10 [2018-12-31 06:14:03,065 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:03,065 INFO L225 Difference]: With dead ends: 18 [2018-12-31 06:14:03,065 INFO L226 Difference]: Without dead ends: 14 [2018-12-31 06:14:03,067 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-31 06:14:03,067 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2018-12-31 06:14:03,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2018-12-31 06:14:03,070 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14 states. [2018-12-31 06:14:03,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 17 transitions. [2018-12-31 06:14:03,071 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 17 transitions. Word has length 10 [2018-12-31 06:14:03,071 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:03,071 INFO L480 AbstractCegarLoop]: Abstraction has 14 states and 17 transitions. [2018-12-31 06:14:03,072 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2018-12-31 06:14:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 17 transitions. [2018-12-31 06:14:03,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-31 06:14:03,072 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 06:14:03,072 INFO L402 BasicCegarLoop]: trace histogram [3, 3, 2, 1, 1, 1, 1, 1] [2018-12-31 06:14:03,074 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 06:14:03,074 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 06:14:03,074 INFO L82 PathProgramCache]: Analyzing trace with hash 570926091, now seen corresponding path program 2 times [2018-12-31 06:14:03,074 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 06:14:03,074 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 06:14:03,075 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:03,076 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 06:14:03,076 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 06:14:03,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 06:14:03,253 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:03,254 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 06:14:03,254 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 [2018-12-31 06:14:03,275 INFO L103 rtionOrderModulation]: Keeping assertion order OUTSIDE_LOOP_FIRST1 [2018-12-31 06:14:03,327 INFO L249 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2018-12-31 06:14:03,327 INFO L250 tOrderPrioritization]: Conjunction of SSA is unsat [2018-12-31 06:14:03,331 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 06:14:03,524 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 0 proven. 9 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-12-31 06:14:03,544 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 06:14:03,544 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 6 [2018-12-31 06:14:03,544 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-31 06:14:03,545 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-31 06:14:03,545 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-31 06:14:03,545 INFO L87 Difference]: Start difference. First operand 14 states and 17 transitions. Second operand 7 states. [2018-12-31 06:14:03,637 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 06:14:03,637 INFO L93 Difference]: Finished difference Result 14 states and 17 transitions. [2018-12-31 06:14:03,638 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 06:14:03,638 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 13 [2018-12-31 06:14:03,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 06:14:03,639 INFO L225 Difference]: With dead ends: 14 [2018-12-31 06:14:03,639 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 06:14:03,640 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2018-12-31 06:14:03,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 06:14:03,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 06:14:03,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 06:14:03,640 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 06:14:03,641 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2018-12-31 06:14:03,641 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 06:14:03,641 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 06:14:03,641 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-31 06:14:03,641 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 06:14:03,641 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 06:14:03,645 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 06:14:03,679 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2018-12-31 06:14:03,679 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 06:14:03,679 INFO L448 ceAbstractionStarter]: For program point L13-1(line 13) no Hoare annotation was computed. [2018-12-31 06:14:03,680 INFO L448 ceAbstractionStarter]: For program point L13-3(lines 13 16) no Hoare annotation was computed. [2018-12-31 06:14:03,680 INFO L444 ceAbstractionStarter]: At program point L13-5(lines 13 16) the Hoare annotation is: (and (<= ULTIMATE.start_main_~y~0 ULTIMATE.start_main_~x~0) (<= 1 ULTIMATE.start_main_~x~0) (<= 0 ULTIMATE.start_main_~y~0)) [2018-12-31 06:14:03,680 INFO L448 ceAbstractionStarter]: For program point L13-6(lines 13 16) no Hoare annotation was computed. [2018-12-31 06:14:03,680 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2018-12-31 06:14:03,680 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 06:14:03,681 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 06:14:03,681 INFO L451 ceAbstractionStarter]: At program point L18(lines 10 19) the Hoare annotation is: true [2018-12-31 06:14:03,681 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2018-12-31 06:14:03,681 INFO L451 ceAbstractionStarter]: At program point L4-2(lines 3 8) the Hoare annotation is: true [2018-12-31 06:14:03,693 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 06:14:03 BoogieIcfgContainer [2018-12-31 06:14:03,693 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 06:14:03,694 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 06:14:03,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 06:14:03,694 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 06:14:03,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 06:14:01" (3/4) ... [2018-12-31 06:14:03,699 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 06:14:03,708 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2018-12-31 06:14:03,709 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2018-12-31 06:14:03,756 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 06:14:03,756 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 06:14:03,757 INFO L168 Benchmark]: Toolchain (without parser) took 2521.76 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 954.0 MB in the beginning and 1.0 GB in the end (delta: -94.0 MB). Peak memory consumption was 50.2 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:03,760 INFO L168 Benchmark]: CDTParser took 0.16 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. [2018-12-31 06:14:03,760 INFO L168 Benchmark]: CACSL2BoogieTranslator took 252.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:03,762 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.92 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 06:14:03,762 INFO L168 Benchmark]: Boogie Preprocessor took 22.85 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 06:14:03,765 INFO L168 Benchmark]: RCFGBuilder took 312.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:03,766 INFO L168 Benchmark]: TraceAbstraction took 1828.63 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:03,767 INFO L168 Benchmark]: Witness Printer took 62.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2018-12-31 06:14:03,771 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 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 252.09 ms. Allocated memory is still 1.0 GB. Free memory was 954.0 MB in the beginning and 943.3 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 37.92 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 22.85 ms. Allocated memory is still 1.0 GB. Free memory is still 943.3 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 312.44 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 144.2 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -176.3 MB). Peak memory consumption was 12.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 1828.63 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: 65.0 MB). Peak memory consumption was 65.0 MB. Max. memory is 11.5 GB. * Witness Printer took 62.78 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 3]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 13]: Loop Invariant Derived loop invariant: (y <= x && 1 <= x) && 0 <= y - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 12 locations, 1 error locations. SAFE Result, 1.7s OverallTime, 4 OverallIterations, 3 TraceHistogramMax, 0.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 29 SDtfs, 17 SDslu, 29 SDs, 0 SdLazy, 28 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 40 GetRequests, 23 SyntacticMatches, 2 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred in iteration=3, 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, 4 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 3 PreInvPairs, 6 NumberOfFragments, 12 HoareAnnotationTreeSize, 3 FomulaSimplifications, 16 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 52 ConstructedInterpolants, 0 QuantifiedInterpolants, 1642 SizeOfPredicates, 8 NumberOfNonLiveVariables, 68 ConjunctsInSsa, 20 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 0/24 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...