./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c --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/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91d2600fad1210650d8ad3da481cdcc11b280095 .................................................................................................................................................................................................................................................................................................................................................................................................. 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 09:51:52,105 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-12-31 09:51:52,106 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-12-31 09:51:52,127 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-12-31 09:51:52,127 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-12-31 09:51:52,129 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-12-31 09:51:52,130 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-12-31 09:51:52,133 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-12-31 09:51:52,135 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-12-31 09:51:52,137 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-12-31 09:51:52,139 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-12-31 09:51:52,140 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-12-31 09:51:52,141 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-12-31 09:51:52,142 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-12-31 09:51:52,143 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-12-31 09:51:52,144 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-12-31 09:51:52,145 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-12-31 09:51:52,147 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-12-31 09:51:52,149 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-12-31 09:51:52,151 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-12-31 09:51:52,152 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-12-31 09:51:52,154 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-12-31 09:51:52,156 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-12-31 09:51:52,156 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-12-31 09:51:52,156 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-12-31 09:51:52,159 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-12-31 09:51:52,160 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-12-31 09:51:52,161 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-12-31 09:51:52,161 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-12-31 09:51:52,164 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-12-31 09:51:52,165 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-12-31 09:51:52,166 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-12-31 09:51:52,167 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-12-31 09:51:52,167 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-12-31 09:51:52,169 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-12-31 09:51:52,170 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-12-31 09:51:52,170 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-12-31 09:51:52,192 INFO L110 SettingsManager]: Loading preferences was successful [2018-12-31 09:51:52,192 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-12-31 09:51:52,194 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-12-31 09:51:52,194 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-12-31 09:51:52,194 INFO L133 SettingsManager]: * Use SBE=true [2018-12-31 09:51:52,195 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-12-31 09:51:52,195 INFO L133 SettingsManager]: * sizeof long=4 [2018-12-31 09:51:52,195 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-12-31 09:51:52,195 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-12-31 09:51:52,195 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-12-31 09:51:52,195 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-12-31 09:51:52,196 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-12-31 09:51:52,197 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-12-31 09:51:52,197 INFO L133 SettingsManager]: * sizeof long double=12 [2018-12-31 09:51:52,197 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-12-31 09:51:52,197 INFO L133 SettingsManager]: * Use constant arrays=true [2018-12-31 09:51:52,197 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-12-31 09:51:52,197 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-12-31 09:51:52,198 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-12-31 09:51:52,198 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-12-31 09:51:52,198 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-12-31 09:51:52,198 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-12-31 09:51:52,198 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-12-31 09:51:52,198 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-12-31 09:51:52,200 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-12-31 09:51:52,200 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-12-31 09:51:52,200 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-12-31 09:51:52,200 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-12-31 09:51:52,201 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 -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2018-12-31 09:51:52,241 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-12-31 09:51:52,253 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-12-31 09:51:52,258 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-12-31 09:51:52,260 INFO L271 PluginConnector]: Initializing CDTParser... [2018-12-31 09:51:52,261 INFO L276 PluginConnector]: CDTParser initialized [2018-12-31 09:51:52,262 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-12-31 09:51:52,334 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289d3d9b1/f17e8a8ea09146f8898ff07c49b28cc4/FLAG2f458c7ae [2018-12-31 09:51:52,862 INFO L307 CDTParser]: Found 1 translation units. [2018-12-31 09:51:52,863 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-12-31 09:51:52,869 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289d3d9b1/f17e8a8ea09146f8898ff07c49b28cc4/FLAG2f458c7ae [2018-12-31 09:51:53,200 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/289d3d9b1/f17e8a8ea09146f8898ff07c49b28cc4 [2018-12-31 09:51:53,205 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-12-31 09:51:53,206 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-12-31 09:51:53,208 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-12-31 09:51:53,208 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-12-31 09:51:53,212 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-12-31 09:51:53,213 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,217 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@179a4755 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53, skipping insertion in model container [2018-12-31 09:51:53,217 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,226 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-12-31 09:51:53,243 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-12-31 09:51:53,430 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:51:53,435 INFO L191 MainTranslator]: Completed pre-run [2018-12-31 09:51:53,457 INFO L204 PostProcessor]: Analyzing one entry point: main [2018-12-31 09:51:53,477 INFO L195 MainTranslator]: Completed translation [2018-12-31 09:51:53,479 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53 WrapperNode [2018-12-31 09:51:53,479 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-12-31 09:51:53,480 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-12-31 09:51:53,480 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-12-31 09:51:53,480 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-12-31 09:51:53,492 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,524 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-12-31 09:51:53,527 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-12-31 09:51:53,527 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-12-31 09:51:53,528 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-12-31 09:51:53,540 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,541 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,542 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,543 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,546 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,550 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,551 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (1/1) ... [2018-12-31 09:51:53,553 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-12-31 09:51:53,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-12-31 09:51:53,560 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-12-31 09:51:53,560 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-12-31 09:51:53,561 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (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 09:51:53,711 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-12-31 09:51:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-12-31 09:51:53,712 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-12-31 09:51:53,712 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-12-31 09:51:54,112 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-12-31 09:51:54,112 INFO L280 CfgBuilder]: Removed 4 assue(true) statements. [2018-12-31 09:51:54,113 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:51:54 BoogieIcfgContainer [2018-12-31 09:51:54,113 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-12-31 09:51:54,114 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-12-31 09:51:54,114 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-12-31 09:51:54,118 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-12-31 09:51:54,119 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 31.12 09:51:53" (1/3) ... [2018-12-31 09:51:54,119 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171be216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:51:54, skipping insertion in model container [2018-12-31 09:51:54,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 31.12 09:51:53" (2/3) ... [2018-12-31 09:51:54,120 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@171be216 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 31.12 09:51:54, skipping insertion in model container [2018-12-31 09:51:54,120 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:51:54" (3/3) ... [2018-12-31 09:51:54,123 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-12-31 09:51:54,133 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-12-31 09:51:54,142 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-12-31 09:51:54,161 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-12-31 09:51:54,197 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-12-31 09:51:54,198 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-12-31 09:51:54,198 INFO L383 AbstractCegarLoop]: Hoare is true [2018-12-31 09:51:54,198 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-12-31 09:51:54,199 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-12-31 09:51:54,199 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-12-31 09:51:54,199 INFO L387 AbstractCegarLoop]: Difference is false [2018-12-31 09:51:54,199 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-12-31 09:51:54,199 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-12-31 09:51:54,219 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states. [2018-12-31 09:51:54,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2018-12-31 09:51:54,226 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:51:54,227 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:51:54,229 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:51:54,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:51:54,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2068195676, now seen corresponding path program 1 times [2018-12-31 09:51:54,238 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:51:54,239 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:51:54,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:54,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:54,294 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:54,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:54,671 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 09:51:54,674 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:51:54,675 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-12-31 09:51:54,680 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-12-31 09:51:54,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-12-31 09:51:54,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-12-31 09:51:54,695 INFO L87 Difference]: Start difference. First operand 21 states. Second operand 6 states. [2018-12-31 09:51:55,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:51:55,200 INFO L93 Difference]: Finished difference Result 33 states and 41 transitions. [2018-12-31 09:51:55,201 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:51:55,202 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 11 [2018-12-31 09:51:55,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:51:55,211 INFO L225 Difference]: With dead ends: 33 [2018-12-31 09:51:55,211 INFO L226 Difference]: Without dead ends: 20 [2018-12-31 09:51:55,214 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-12-31 09:51:55,230 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2018-12-31 09:51:55,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2018-12-31 09:51:55,254 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-31 09:51:55,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 25 transitions. [2018-12-31 09:51:55,256 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 25 transitions. Word has length 11 [2018-12-31 09:51:55,257 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:51:55,257 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 25 transitions. [2018-12-31 09:51:55,257 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-12-31 09:51:55,257 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 25 transitions. [2018-12-31 09:51:55,259 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2018-12-31 09:51:55,259 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:51:55,260 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:51:55,260 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:51:55,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:51:55,260 INFO L82 PathProgramCache]: Analyzing trace with hash 800728349, now seen corresponding path program 1 times [2018-12-31 09:51:55,261 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:51:55,261 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:51:55,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:55,262 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:55,262 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:55,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:55,308 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 09:51:55,308 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-12-31 09:51:55,310 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-12-31 09:51:55,311 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-12-31 09:51:55,311 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-12-31 09:51:55,311 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-31 09:51:55,312 INFO L87 Difference]: Start difference. First operand 20 states and 25 transitions. Second operand 4 states. [2018-12-31 09:51:55,348 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:51:55,348 INFO L93 Difference]: Finished difference Result 30 states and 38 transitions. [2018-12-31 09:51:55,349 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-12-31 09:51:55,349 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2018-12-31 09:51:55,349 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:51:55,350 INFO L225 Difference]: With dead ends: 30 [2018-12-31 09:51:55,350 INFO L226 Difference]: Without dead ends: 22 [2018-12-31 09:51:55,351 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-12-31 09:51:55,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22 states. [2018-12-31 09:51:55,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22 to 20. [2018-12-31 09:51:55,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20 states. [2018-12-31 09:51:55,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 24 transitions. [2018-12-31 09:51:55,360 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 24 transitions. Word has length 13 [2018-12-31 09:51:55,360 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:51:55,360 INFO L480 AbstractCegarLoop]: Abstraction has 20 states and 24 transitions. [2018-12-31 09:51:55,360 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-12-31 09:51:55,361 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 24 transitions. [2018-12-31 09:51:55,362 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2018-12-31 09:51:55,362 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:51:55,362 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:51:55,362 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:51:55,363 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:51:55,363 INFO L82 PathProgramCache]: Analyzing trace with hash 1352688745, now seen corresponding path program 1 times [2018-12-31 09:51:55,363 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:51:55,363 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:51:55,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:55,364 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:55,364 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:55,856 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 09:51:55,857 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 09:51:55,857 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 09:51:55,869 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:55,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:55,898 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 09:51:56,670 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 09:51:56,689 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 09:51:56,689 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-12-31 09:51:56,690 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-12-31 09:51:56,690 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-12-31 09:51:56,691 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-12-31 09:51:56,691 INFO L87 Difference]: Start difference. First operand 20 states and 24 transitions. Second operand 18 states. [2018-12-31 09:51:57,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:51:57,152 INFO L93 Difference]: Finished difference Result 34 states and 43 transitions. [2018-12-31 09:51:57,156 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-12-31 09:51:57,156 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 18 [2018-12-31 09:51:57,157 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:51:57,158 INFO L225 Difference]: With dead ends: 34 [2018-12-31 09:51:57,160 INFO L226 Difference]: Without dead ends: 28 [2018-12-31 09:51:57,161 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2018-12-31 09:51:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28 states. [2018-12-31 09:51:57,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28 to 21. [2018-12-31 09:51:57,171 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21 states. [2018-12-31 09:51:57,172 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 25 transitions. [2018-12-31 09:51:57,172 INFO L78 Accepts]: Start accepts. Automaton has 21 states and 25 transitions. Word has length 18 [2018-12-31 09:51:57,173 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:51:57,173 INFO L480 AbstractCegarLoop]: Abstraction has 21 states and 25 transitions. [2018-12-31 09:51:57,174 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-12-31 09:51:57,174 INFO L276 IsEmpty]: Start isEmpty. Operand 21 states and 25 transitions. [2018-12-31 09:51:57,176 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2018-12-31 09:51:57,176 INFO L394 BasicCegarLoop]: Found error trace [2018-12-31 09:51:57,176 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-12-31 09:51:57,176 INFO L423 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-12-31 09:51:57,177 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2018-12-31 09:51:57,177 INFO L82 PathProgramCache]: Analyzing trace with hash 1841388592, now seen corresponding path program 1 times [2018-12-31 09:51:57,177 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-12-31 09:51:57,177 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-12-31 09:51:57,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:57,179 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:57,179 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-12-31 09:51:57,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:57,303 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 09:51:57,303 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-12-31 09:51:57,304 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 09:51:57,322 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-12-31 09:51:57,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-12-31 09:51:57,343 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-12-31 09:51:57,369 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-12-31 09:51:57,397 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-12-31 09:51:57,397 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2018-12-31 09:51:57,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-12-31 09:51:57,399 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-12-31 09:51:57,399 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-31 09:51:57,399 INFO L87 Difference]: Start difference. First operand 21 states and 25 transitions. Second operand 7 states. [2018-12-31 09:51:57,493 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-12-31 09:51:57,493 INFO L93 Difference]: Finished difference Result 23 states and 28 transitions. [2018-12-31 09:51:57,494 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-12-31 09:51:57,495 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 19 [2018-12-31 09:51:57,495 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-12-31 09:51:57,495 INFO L225 Difference]: With dead ends: 23 [2018-12-31 09:51:57,496 INFO L226 Difference]: Without dead ends: 0 [2018-12-31 09:51:57,496 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-12-31 09:51:57,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-12-31 09:51:57,497 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-12-31 09:51:57,497 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-12-31 09:51:57,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-12-31 09:51:57,498 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 19 [2018-12-31 09:51:57,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-12-31 09:51:57,498 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-12-31 09:51:57,498 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-12-31 09:51:57,498 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-12-31 09:51:57,498 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-12-31 09:51:57,503 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-12-31 09:51:57,655 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-12-31 09:51:57,655 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2018-12-31 09:51:57,655 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-12-31 09:51:57,655 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 32) no Hoare annotation was computed. [2018-12-31 09:51:57,656 INFO L451 ceAbstractionStarter]: At program point L26(lines 26 45) the Hoare annotation is: true [2018-12-31 09:51:57,656 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-12-31 09:51:57,656 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-12-31 09:51:57,656 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-12-31 09:51:57,657 INFO L444 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (<= 0 ULTIMATE.start_main_~n~0) [2018-12-31 09:51:57,657 INFO L448 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-12-31 09:51:57,657 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2018-12-31 09:51:57,657 INFO L448 ceAbstractionStarter]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2018-12-31 09:51:57,657 INFO L444 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0) (<= (+ addition_~n 1) 0))) [2018-12-31 09:51:57,657 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2018-12-31 09:51:57,658 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-12-31 09:51:57,658 INFO L444 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (< 0 addition_~n) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0))) [2018-12-31 09:51:57,658 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2018-12-31 09:51:57,658 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-12-31 09:51:57,658 INFO L451 ceAbstractionStarter]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2018-12-31 09:51:57,658 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-12-31 09:51:57,659 INFO L448 ceAbstractionStarter]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2018-12-31 09:51:57,665 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 31.12 09:51:57 BoogieIcfgContainer [2018-12-31 09:51:57,666 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-12-31 09:51:57,666 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-12-31 09:51:57,666 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-12-31 09:51:57,666 INFO L276 PluginConnector]: Witness Printer initialized [2018-12-31 09:51:57,667 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 31.12 09:51:54" (3/4) ... [2018-12-31 09:51:57,671 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-12-31 09:51:57,679 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2018-12-31 09:51:57,684 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2018-12-31 09:51:57,684 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-12-31 09:51:57,740 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-12-31 09:51:57,741 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-12-31 09:51:57,742 INFO L168 Benchmark]: Toolchain (without parser) took 4536.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 948.7 MB in the beginning and 949.2 MB in the end (delta: -486.8 kB). Peak memory consumption was 148.9 MB. Max. memory is 11.5 GB. [2018-12-31 09:51:57,743 INFO L168 Benchmark]: CDTParser took 0.17 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 09:51:57,744 INFO L168 Benchmark]: CACSL2BoogieTranslator took 271.74 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2018-12-31 09:51:57,745 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.72 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:51:57,745 INFO L168 Benchmark]: Boogie Preprocessor took 31.91 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-12-31 09:51:57,746 INFO L168 Benchmark]: RCFGBuilder took 553.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. [2018-12-31 09:51:57,746 INFO L168 Benchmark]: TraceAbstraction took 3551.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. [2018-12-31 09:51:57,747 INFO L168 Benchmark]: Witness Printer took 74.65 ms. Allocated memory is still 1.2 GB. Free memory was 955.8 MB in the beginning and 949.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-12-31 09:51:57,751 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 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 271.74 ms. Allocated memory is still 1.0 GB. Free memory was 948.7 MB in the beginning and 937.9 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 46.72 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 31.91 ms. Allocated memory is still 1.0 GB. Free memory is still 937.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 553.97 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 149.4 MB). Free memory was 937.9 MB in the beginning and 1.1 GB in the end (delta: -182.5 MB). Peak memory consumption was 18.4 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3551.32 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 955.8 MB in the end (delta: 164.6 MB). Peak memory consumption was 164.6 MB. Max. memory is 11.5 GB. * Witness Printer took 74.65 ms. Allocated memory is still 1.2 GB. Free memory was 955.8 MB in the beginning and 949.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: 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: 26]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 21 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 68 SDtfs, 80 SDslu, 130 SDs, 0 SdLazy, 251 SolverSat, 52 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 68 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=21occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 5 LocationsWithAnnotation, 11 PreInvPairs, 13 NumberOfFragments, 49 HoareAnnotationTreeSize, 11 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 1.7s InterpolantComputationTime, 98 NumberOfCodeBlocks, 98 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 92 ConstructedInterpolants, 0 QuantifiedInterpolants, 6760 SizeOfPredicates, 9 NumberOfNonLiveVariables, 113 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...