./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 67bb0790f696b3c18eb630bed2fc34fee971c82b ................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-14 17:34:28,089 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-14 17:34:28,091 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-14 17:34:28,107 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-14 17:34:28,109 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-14 17:34:28,110 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-14 17:34:28,112 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-14 17:34:28,115 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-14 17:34:28,118 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-14 17:34:28,119 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-14 17:34:28,121 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-14 17:34:28,121 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-14 17:34:28,122 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-14 17:34:28,124 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-14 17:34:28,133 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-14 17:34:28,133 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-14 17:34:28,135 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-14 17:34:28,137 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-14 17:34:28,141 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-14 17:34:28,143 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-14 17:34:28,144 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-14 17:34:28,145 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-14 17:34:28,147 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-14 17:34:28,148 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-14 17:34:28,148 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-14 17:34:28,149 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-14 17:34:28,150 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-14 17:34:28,151 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-14 17:34:28,152 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-14 17:34:28,153 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-14 17:34:28,153 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-14 17:34:28,154 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-14 17:34:28,154 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-14 17:34:28,154 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-14 17:34:28,156 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-14 17:34:28,156 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-14 17:34:28,156 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-14 17:34:28,179 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-14 17:34:28,179 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-14 17:34:28,180 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-14 17:34:28,180 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-14 17:34:28,181 INFO L133 SettingsManager]: * Use SBE=true [2019-01-14 17:34:28,181 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-14 17:34:28,181 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-14 17:34:28,181 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-14 17:34:28,181 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-14 17:34:28,181 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-14 17:34:28,182 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-14 17:34:28,185 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-14 17:34:28,185 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-14 17:34:28,185 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-14 17:34:28,185 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-14 17:34:28,185 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-14 17:34:28,186 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-14 17:34:28,187 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-14 17:34:28,187 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-14 17:34:28,188 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-14 17:34:28,188 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:34:28,188 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-14 17:34:28,188 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-14 17:34:28,188 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-14 17:34:28,189 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-14 17:34:28,189 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-14 17:34:28,189 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-14 17:34:28,189 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 -> 67bb0790f696b3c18eb630bed2fc34fee971c82b [2019-01-14 17:34:28,229 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-14 17:34:28,241 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-14 17:34:28,244 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-14 17:34:28,246 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-14 17:34:28,246 INFO L276 PluginConnector]: CDTParser initialized [2019-01-14 17:34:28,247 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2019-01-14 17:34:28,304 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2c0a6cf6/707b5559d2674423a69e27c063122768/FLAGb7291376f [2019-01-14 17:34:28,685 INFO L307 CDTParser]: Found 1 translation units. [2019-01-14 17:34:28,686 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loop-invgen/nest-if3_true-unreach-call_true-termination.i [2019-01-14 17:34:28,691 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2c0a6cf6/707b5559d2674423a69e27c063122768/FLAGb7291376f [2019-01-14 17:34:29,085 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a2c0a6cf6/707b5559d2674423a69e27c063122768 [2019-01-14 17:34:29,092 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-14 17:34:29,093 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-14 17:34:29,094 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-14 17:34:29,095 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-14 17:34:29,098 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-14 17:34:29,099 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,103 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@348d6f3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29, skipping insertion in model container [2019-01-14 17:34:29,103 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,111 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-14 17:34:29,131 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-14 17:34:29,347 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:34:29,351 INFO L191 MainTranslator]: Completed pre-run [2019-01-14 17:34:29,366 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-14 17:34:29,378 INFO L195 MainTranslator]: Completed translation [2019-01-14 17:34:29,379 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29 WrapperNode [2019-01-14 17:34:29,379 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-14 17:34:29,380 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-14 17:34:29,380 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-14 17:34:29,380 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-14 17:34:29,389 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,395 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,418 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-14 17:34:29,419 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-14 17:34:29,419 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-14 17:34:29,419 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-14 17:34:29,428 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,428 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,429 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,429 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,431 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,436 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,437 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... [2019-01-14 17:34:29,439 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-14 17:34:29,440 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-14 17:34:29,440 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-14 17:34:29,440 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-14 17:34:29,441 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-14 17:34:29,567 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-14 17:34:29,567 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-14 17:34:29,893 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-14 17:34:29,893 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-14 17:34:29,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:34:29 BoogieIcfgContainer [2019-01-14 17:34:29,895 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-14 17:34:29,895 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-14 17:34:29,896 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-14 17:34:29,899 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-14 17:34:29,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.01 05:34:29" (1/3) ... [2019-01-14 17:34:29,900 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668c34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:34:29, skipping insertion in model container [2019-01-14 17:34:29,900 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.01 05:34:29" (2/3) ... [2019-01-14 17:34:29,902 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2668c34d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.01 05:34:29, skipping insertion in model container [2019-01-14 17:34:29,902 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:34:29" (3/3) ... [2019-01-14 17:34:29,903 INFO L112 eAbstractionObserver]: Analyzing ICFG nest-if3_true-unreach-call_true-termination.i [2019-01-14 17:34:29,917 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-14 17:34:29,928 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-14 17:34:29,946 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-14 17:34:29,976 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-14 17:34:29,977 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-14 17:34:29,977 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-14 17:34:29,977 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-14 17:34:29,977 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-14 17:34:29,977 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-14 17:34:29,977 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-14 17:34:29,977 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-14 17:34:29,978 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-14 17:34:29,991 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2019-01-14 17:34:29,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-14 17:34:29,997 INFO L394 BasicCegarLoop]: Found error trace [2019-01-14 17:34:29,998 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-14 17:34:30,000 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-14 17:34:30,005 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-14 17:34:30,005 INFO L82 PathProgramCache]: Analyzing trace with hash 1295854517, now seen corresponding path program 1 times [2019-01-14 17:34:30,007 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-14 17:34:30,007 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-14 17:34:30,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:34:30,043 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-14 17:34:30,043 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-14 17:34:30,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-14 17:34:30,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-14 17:34:30,238 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-14 17:34:30,238 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-01-14 17:34:30,241 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-01-14 17:34:30,251 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-01-14 17:34:30,251 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-01-14 17:34:30,253 INFO L87 Difference]: Start difference. First operand 16 states. Second operand 5 states. [2019-01-14 17:34:30,418 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-14 17:34:30,419 INFO L93 Difference]: Finished difference Result 41 states and 58 transitions. [2019-01-14 17:34:30,419 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-01-14 17:34:30,420 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 8 [2019-01-14 17:34:30,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-14 17:34:30,427 INFO L225 Difference]: With dead ends: 41 [2019-01-14 17:34:30,427 INFO L226 Difference]: Without dead ends: 0 [2019-01-14 17:34:30,430 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2019-01-14 17:34:30,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-14 17:34:30,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-14 17:34:30,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-14 17:34:30,448 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-14 17:34:30,450 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-14 17:34:30,450 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-14 17:34:30,450 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-14 17:34:30,450 INFO L481 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-01-14 17:34:30,450 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-14 17:34:30,451 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-14 17:34:30,455 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-14 17:34:30,524 INFO L448 ceAbstractionStarter]: For program point L15(line 15) no Hoare annotation was computed. [2019-01-14 17:34:30,524 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-14 17:34:30,524 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-14 17:34:30,525 INFO L448 ceAbstractionStarter]: For program point L16(line 16) no Hoare annotation was computed. [2019-01-14 17:34:30,525 INFO L448 ceAbstractionStarter]: For program point L4(lines 4 6) no Hoare annotation was computed. [2019-01-14 17:34:30,525 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 5) no Hoare annotation was computed. [2019-01-14 17:34:30,526 INFO L444 ceAbstractionStarter]: At program point L4-2(lines 1 24) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~l~0) (= ULTIMATE.start___VERIFIER_assert_~cond 1)) [2019-01-14 17:34:30,526 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-14 17:34:30,526 INFO L448 ceAbstractionStarter]: For program point L21(lines 21 22) no Hoare annotation was computed. [2019-01-14 17:34:30,526 INFO L448 ceAbstractionStarter]: For program point L17-2(lines 17 23) no Hoare annotation was computed. [2019-01-14 17:34:30,526 INFO L444 ceAbstractionStarter]: At program point L17-3(lines 17 23) the Hoare annotation is: (<= 1 ULTIMATE.start_main_~l~0) [2019-01-14 17:34:30,526 INFO L448 ceAbstractionStarter]: For program point L5(line 5) no Hoare annotation was computed. [2019-01-14 17:34:30,527 INFO L444 ceAbstractionStarter]: At program point L18-2(lines 18 20) the Hoare annotation is: (and (<= 1 ULTIMATE.start_main_~i~0) (<= 1 ULTIMATE.start_main_~l~0)) [2019-01-14 17:34:30,527 INFO L448 ceAbstractionStarter]: For program point L18-3(lines 18 20) no Hoare annotation was computed. [2019-01-14 17:34:30,528 INFO L448 ceAbstractionStarter]: For program point L14(line 14) no Hoare annotation was computed. [2019-01-14 17:34:30,528 INFO L451 ceAbstractionStarter]: At program point L10(lines 10 24) the Hoare annotation is: true [2019-01-14 17:34:30,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 14.01 05:34:30 BoogieIcfgContainer [2019-01-14 17:34:30,539 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-14 17:34:30,540 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-14 17:34:30,540 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-14 17:34:30,541 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-14 17:34:30,541 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.01 05:34:29" (3/4) ... [2019-01-14 17:34:30,545 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-14 17:34:30,554 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-14 17:34:30,555 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-14 17:34:30,609 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-14 17:34:30,609 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-14 17:34:30,610 INFO L168 Benchmark]: Toolchain (without parser) took 1517.95 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 952.7 MB in the beginning and 1.1 GB in the end (delta: -125.1 MB). Peak memory consumption was 15.9 MB. Max. memory is 11.5 GB. [2019-01-14 17:34:30,612 INFO L168 Benchmark]: CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:34:30,613 INFO L168 Benchmark]: CACSL2BoogieTranslator took 284.64 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:34:30,613 INFO L168 Benchmark]: Boogie Procedure Inliner took 39.26 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:34:30,614 INFO L168 Benchmark]: Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-14 17:34:30,614 INFO L168 Benchmark]: RCFGBuilder took 455.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. [2019-01-14 17:34:30,615 INFO L168 Benchmark]: TraceAbstraction took 644.04 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. [2019-01-14 17:34:30,615 INFO L168 Benchmark]: Witness Printer took 69.53 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: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-01-14 17:34:30,620 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 284.64 ms. Allocated memory is still 1.0 GB. Free memory was 952.7 MB in the beginning and 941.9 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 39.26 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 20.20 ms. Allocated memory is still 1.0 GB. Free memory is still 941.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 455.05 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.0 MB). Free memory was 941.9 MB in the beginning and 1.1 GB in the end (delta: -175.8 MB). Peak memory consumption was 18.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 644.04 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: 33.3 MB). Peak memory consumption was 33.3 MB. Max. memory is 11.5 GB. * Witness Printer took 69.53 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: 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: 5]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 18]: Loop Invariant Derived loop invariant: 1 <= i && 1 <= l - InvariantResult [Line: 1]: Loop Invariant Derived loop invariant: (1 <= i && 1 <= l) && cond == 1 - InvariantResult [Line: 17]: Loop Invariant Derived loop invariant: 1 <= l - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 16 locations, 1 error locations. SAFE Result, 0.5s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 22 SDtfs, 29 SDslu, 27 SDs, 0 SdLazy, 24 SolverSat, 7 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred 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, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 4 LocationsWithAnnotation, 4 PreInvPairs, 14 NumberOfFragments, 21 HoareAnnotationTreeSize, 4 FomulaSimplifications, 29 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 119 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...