./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/ldv-regression/test21_true-unreach-call_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 0ed9222f Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/ldv-regression/test21_true-unreach-call_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 e96ea2b5694d083c4ab21538f2478ac793ab7d6e .......................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-0ed9222-m [2019-01-12 09:33:54,406 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 09:33:54,408 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 09:33:54,420 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 09:33:54,420 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 09:33:54,421 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 09:33:54,422 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 09:33:54,424 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 09:33:54,426 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 09:33:54,427 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 09:33:54,428 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 09:33:54,428 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 09:33:54,429 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 09:33:54,430 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 09:33:54,431 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 09:33:54,432 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 09:33:54,433 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 09:33:54,435 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 09:33:54,437 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 09:33:54,439 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 09:33:54,440 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 09:33:54,441 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 09:33:54,443 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 09:33:54,444 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 09:33:54,444 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 09:33:54,445 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 09:33:54,446 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 09:33:54,447 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 09:33:54,447 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 09:33:54,449 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 09:33:54,449 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 09:33:54,450 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 09:33:54,450 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 09:33:54,450 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 09:33:54,451 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 09:33:54,452 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 09:33:54,452 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 09:33:54,468 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 09:33:54,468 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 09:33:54,469 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 09:33:54,469 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 09:33:54,470 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 09:33:54,470 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 09:33:54,470 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 09:33:54,470 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 09:33:54,470 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 09:33:54,471 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 09:33:54,472 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 09:33:54,472 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 09:33:54,472 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 09:33:54,472 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 09:33:54,472 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 09:33:54,472 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 09:33:54,473 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 09:33:54,473 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 09:33:54,473 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 09:33:54,473 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 09:33:54,473 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 09:33:54,473 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 09:33:54,474 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 09:33:54,474 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 -> e96ea2b5694d083c4ab21538f2478ac793ab7d6e [2019-01-12 09:33:54,517 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 09:33:54,532 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 09:33:54,539 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 09:33:54,540 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 09:33:54,541 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 09:33:54,542 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/ldv-regression/test21_true-unreach-call_true-termination.c [2019-01-12 09:33:54,605 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19b0ad2c/e907adf312e64205852a639441f41739/FLAG8dcf61c09 [2019-01-12 09:33:55,084 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 09:33:55,084 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/ldv-regression/test21_true-unreach-call_true-termination.c [2019-01-12 09:33:55,090 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19b0ad2c/e907adf312e64205852a639441f41739/FLAG8dcf61c09 [2019-01-12 09:33:55,506 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/f19b0ad2c/e907adf312e64205852a639441f41739 [2019-01-12 09:33:55,510 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 09:33:55,511 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 09:33:55,514 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 09:33:55,514 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 09:33:55,521 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 09:33:55,522 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,526 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630dbd7b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55, skipping insertion in model container [2019-01-12 09:33:55,526 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,536 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 09:33:55,556 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 09:33:55,775 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:33:55,791 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 09:33:55,814 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 09:33:55,839 INFO L195 MainTranslator]: Completed translation [2019-01-12 09:33:55,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55 WrapperNode [2019-01-12 09:33:55,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 09:33:55,844 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 09:33:55,845 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 09:33:55,845 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 09:33:55,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,863 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,885 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 09:33:55,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 09:33:55,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 09:33:55,886 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 09:33:55,898 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,898 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,969 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,971 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,973 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (1/1) ... [2019-01-12 09:33:55,975 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 09:33:55,977 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 09:33:55,977 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 09:33:55,977 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 09:33:55,979 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (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 [2019-01-12 09:33:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-01-12 09:33:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 09:33:56,040 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 09:33:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 09:33:56,041 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 09:33:56,041 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 09:33:56,453 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 09:33:56,454 INFO L286 CfgBuilder]: Removed 12 assue(true) statements. [2019-01-12 09:33:56,456 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:56 BoogieIcfgContainer [2019-01-12 09:33:56,456 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 09:33:56,458 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 09:33:56,464 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 09:33:56,467 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 09:33:56,467 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 09:33:55" (1/3) ... [2019-01-12 09:33:56,468 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48871247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:33:56, skipping insertion in model container [2019-01-12 09:33:56,468 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 09:33:55" (2/3) ... [2019-01-12 09:33:56,469 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@48871247 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 09:33:56, skipping insertion in model container [2019-01-12 09:33:56,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:56" (3/3) ... [2019-01-12 09:33:56,472 INFO L112 eAbstractionObserver]: Analyzing ICFG test21_true-unreach-call_true-termination.c [2019-01-12 09:33:56,484 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 09:33:56,496 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 09:33:56,513 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 09:33:56,543 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 09:33:56,544 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 09:33:56,544 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 09:33:56,545 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 09:33:56,545 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 09:33:56,545 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 09:33:56,546 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 09:33:56,546 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 09:33:56,546 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 09:33:56,562 INFO L276 IsEmpty]: Start isEmpty. Operand 18 states. [2019-01-12 09:33:56,568 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2019-01-12 09:33:56,569 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 09:33:56,570 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 09:33:56,571 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 09:33:56,576 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 09:33:56,576 INFO L82 PathProgramCache]: Analyzing trace with hash 167538580, now seen corresponding path program 1 times [2019-01-12 09:33:56,578 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 09:33:56,578 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 09:33:56,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:56,634 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 09:33:56,634 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 09:33:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 09:33:57,265 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-01-12 09:33:57,268 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 09:33:57,269 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-01-12 09:33:57,273 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-01-12 09:33:57,287 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-01-12 09:33:57,288 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=73, Unknown=0, NotChecked=0, Total=90 [2019-01-12 09:33:57,291 INFO L87 Difference]: Start difference. First operand 18 states. Second operand 10 states. [2019-01-12 09:33:58,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 09:33:58,429 INFO L93 Difference]: Finished difference Result 67 states and 69 transitions. [2019-01-12 09:33:58,432 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-01-12 09:33:58,433 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 13 [2019-01-12 09:33:58,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 09:33:58,445 INFO L225 Difference]: With dead ends: 67 [2019-01-12 09:33:58,446 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 09:33:58,452 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=103, Invalid=317, Unknown=0, NotChecked=0, Total=420 [2019-01-12 09:33:58,471 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 09:33:58,477 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 09:33:58,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 09:33:58,479 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 09:33:58,480 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2019-01-12 09:33:58,480 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 09:33:58,480 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 09:33:58,480 INFO L481 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-01-12 09:33:58,480 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 09:33:58,481 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 09:33:58,484 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 09:33:58,550 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 09:33:58,550 INFO L444 ceAbstractionStarter]: At program point L27(lines 25 28) the Hoare annotation is: (and (= ULTIMATE.start_main_~pd1~0.base ULTIMATE.start_main_~pd2~0.base) (= ULTIMATE.start_main_~pd1~0.offset ULTIMATE.start_main_~pd2~0.offset) (= 1 |ULTIMATE.start_check_#res|)) [2019-01-12 09:33:58,550 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 42) no Hoare annotation was computed. [2019-01-12 09:33:58,551 INFO L448 ceAbstractionStarter]: For program point L11(lines 11 18) no Hoare annotation was computed. [2019-01-12 09:33:58,551 INFO L444 ceAbstractionStarter]: At program point L36(lines 31 44) the Hoare annotation is: false [2019-01-12 09:33:58,551 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point L34-2(lines 34 38) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point L22(line 22) no Hoare annotation was computed. [2019-01-12 09:33:58,552 INFO L448 ceAbstractionStarter]: For program point L22-2(line 22) no Hoare annotation was computed. [2019-01-12 09:33:58,553 INFO L451 ceAbstractionStarter]: At program point L22-3(lines 20 23) the Hoare annotation is: true [2019-01-12 09:33:58,553 INFO L448 ceAbstractionStarter]: For program point L22-4(line 22) no Hoare annotation was computed. [2019-01-12 09:33:58,553 INFO L448 ceAbstractionStarter]: For program point L22-6(line 22) no Hoare annotation was computed. [2019-01-12 09:33:58,553 INFO L451 ceAbstractionStarter]: At program point L22-7(lines 20 23) the Hoare annotation is: true [2019-01-12 09:33:58,553 INFO L451 ceAbstractionStarter]: At program point L43(lines 30 44) the Hoare annotation is: true [2019-01-12 09:33:58,553 INFO L448 ceAbstractionStarter]: For program point L35(lines 35 37) no Hoare annotation was computed. [2019-01-12 09:33:58,569 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 09:33:58 BoogieIcfgContainer [2019-01-12 09:33:58,569 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 09:33:58,570 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 09:33:58,570 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 09:33:58,570 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 09:33:58,571 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 09:33:56" (3/4) ... [2019-01-12 09:33:58,576 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 09:33:58,588 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 5 nodes and edges [2019-01-12 09:33:58,589 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-01-12 09:33:58,619 WARN L221 nessWitnessGenerator]: Not writing invariant because ACSL is forbidden: (pd1 == pd2 && pd1 == pd2) && 1 == \result [2019-01-12 09:33:58,656 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 09:33:58,657 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 09:33:58,658 INFO L168 Benchmark]: Toolchain (without parser) took 3147.19 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 954.0 MB in the beginning and 1.0 GB in the end (delta: -72.2 MB). Peak memory consumption was 76.2 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:58,659 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. [2019-01-12 09:33:58,660 INFO L168 Benchmark]: CACSL2BoogieTranslator took 326.81 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. [2019-01-12 09:33:58,661 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.61 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. [2019-01-12 09:33:58,661 INFO L168 Benchmark]: Boogie Preprocessor took 89.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:58,662 INFO L168 Benchmark]: RCFGBuilder took 479.32 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:58,662 INFO L168 Benchmark]: TraceAbstraction took 2111.65 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: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. [2019-01-12 09:33:58,663 INFO L168 Benchmark]: Witness Printer took 86.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 09:33:58,667 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 326.81 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 40.61 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 89.87 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 943.3 MB in the beginning and 1.1 GB in the end (delta: -200.4 MB). Peak memory consumption was 19.1 MB. Max. memory is 11.5 GB. * RCFGBuilder took 479.32 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 2111.65 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: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 11.5 GB. * Witness Printer took 86.97 ms. Allocated memory is still 1.2 GB. Free memory is still 1.0 GB. There was no memory consumed. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 42]: 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: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 25]: Loop Invariant Derived loop invariant: (pd1 == pd2 && pd1 == pd2) && 1 == \result - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 20]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 31]: Loop Invariant Derived loop invariant: 0 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 18 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 72 SDslu, 77 SDs, 0 SdLazy, 102 SolverSat, 24 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 1.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=18occurred 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, 5 LocationsWithAnnotation, 5 PreInvPairs, 20 NumberOfFragments, 14 HoareAnnotationTreeSize, 5 FomulaSimplifications, 55 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 5 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 12 ConstructedInterpolants, 0 QuantifiedInterpolants, 624 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...