./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/loops/veris.c_sendmail__tTflag_arr_one_loop_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/loops/veris.c_sendmail__tTflag_arr_one_loop_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 b9d847f55c059f9ab605062cc4d39bbb07512b65 ..................................................................................................................................................................................................................................................................... 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 10:52:25,501 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 10:52:25,503 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 10:52:25,515 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 10:52:25,515 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 10:52:25,516 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 10:52:25,518 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 10:52:25,519 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 10:52:25,521 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 10:52:25,522 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 10:52:25,523 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 10:52:25,523 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 10:52:25,524 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 10:52:25,525 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 10:52:25,526 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 10:52:25,527 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 10:52:25,528 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 10:52:25,529 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 10:52:25,531 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 10:52:25,533 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 10:52:25,534 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 10:52:25,536 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 10:52:25,538 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 10:52:25,538 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 10:52:25,539 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 10:52:25,540 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 10:52:25,541 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 10:52:25,541 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 10:52:25,542 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 10:52:25,543 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 10:52:25,543 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 10:52:25,544 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 10:52:25,544 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 10:52:25,545 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 10:52:25,546 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 10:52:25,547 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 10:52:25,547 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 10:52:25,562 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 10:52:25,562 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 10:52:25,563 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 10:52:25,564 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 10:52:25,564 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 10:52:25,567 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 10:52:25,567 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 10:52:25,567 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 10:52:25,568 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 10:52:25,569 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 10:52:25,569 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 10:52:25,569 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 10:52:25,569 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 10:52:25,569 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 10:52:25,570 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 10:52:25,570 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 10:52:25,571 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 10:52:25,571 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 10:52:25,571 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 10:52:25,571 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 10:52:25,571 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 10:52:25,571 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 10:52:25,572 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 -> b9d847f55c059f9ab605062cc4d39bbb07512b65 [2019-01-12 10:52:25,632 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 10:52:25,650 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 10:52:25,654 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 10:52:25,656 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 10:52:25,656 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 10:52:25,657 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2019-01-12 10:52:25,715 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3d21369/a8229069b01a4ceb8b3dc0071ce27485/FLAGf84a98308 [2019-01-12 10:52:26,124 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 10:52:26,125 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/loops/veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2019-01-12 10:52:26,130 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3d21369/a8229069b01a4ceb8b3dc0071ce27485/FLAGf84a98308 [2019-01-12 10:52:26,498 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/5a3d21369/a8229069b01a4ceb8b3dc0071ce27485 [2019-01-12 10:52:26,502 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 10:52:26,504 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 10:52:26,505 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 10:52:26,505 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 10:52:26,510 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 10:52:26,511 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,513 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7730cce and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26, skipping insertion in model container [2019-01-12 10:52:26,514 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,522 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 10:52:26,538 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 10:52:26,721 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 10:52:26,727 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 10:52:26,763 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 10:52:26,798 INFO L195 MainTranslator]: Completed translation [2019-01-12 10:52:26,799 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26 WrapperNode [2019-01-12 10:52:26,800 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 10:52:26,802 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 10:52:26,802 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 10:52:26,802 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 10:52:26,812 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,822 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,848 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 10:52:26,848 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 10:52:26,849 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 10:52:26,849 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 10:52:26,859 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,859 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,861 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,862 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,930 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,940 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,945 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (1/1) ... [2019-01-12 10:52:26,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 10:52:26,953 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 10:52:26,953 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 10:52:26,953 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 10:52:26,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (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 10:52:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 10:52:27,017 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 10:52:27,017 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 10:52:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-01-12 10:52:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 10:52:27,018 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 10:52:27,282 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 10:52:27,283 INFO L286 CfgBuilder]: Removed 8 assue(true) statements. [2019-01-12 10:52:27,284 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:27 BoogieIcfgContainer [2019-01-12 10:52:27,284 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 10:52:27,285 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 10:52:27,285 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 10:52:27,288 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 10:52:27,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 10:52:26" (1/3) ... [2019-01-12 10:52:27,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae10cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:52:27, skipping insertion in model container [2019-01-12 10:52:27,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:52:26" (2/3) ... [2019-01-12 10:52:27,290 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@ae10cbb and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:52:27, skipping insertion in model container [2019-01-12 10:52:27,290 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:27" (3/3) ... [2019-01-12 10:52:27,292 INFO L112 eAbstractionObserver]: Analyzing ICFG veris.c_sendmail__tTflag_arr_one_loop_true-unreach-call_true-termination.i [2019-01-12 10:52:27,306 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 10:52:27,316 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 10:52:27,336 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 10:52:27,378 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 10:52:27,379 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 10:52:27,379 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 10:52:27,379 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 10:52:27,379 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 10:52:27,379 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 10:52:27,380 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 10:52:27,380 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 10:52:27,380 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 10:52:27,395 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states. [2019-01-12 10:52:27,402 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2019-01-12 10:52:27,402 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 10:52:27,403 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 10:52:27,405 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 10:52:27,414 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 10:52:27,415 INFO L82 PathProgramCache]: Analyzing trace with hash 212076531, now seen corresponding path program 1 times [2019-01-12 10:52:27,420 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 10:52:27,421 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 10:52:27,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:27,473 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 10:52:27,473 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 10:52:27,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 10:52:27,594 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 10:52:27,596 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 10:52:27,597 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 10:52:27,600 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 10:52:27,611 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 10:52:27,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 10:52:27,614 INFO L87 Difference]: Start difference. First operand 14 states. Second operand 3 states. [2019-01-12 10:52:27,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 10:52:27,635 INFO L93 Difference]: Finished difference Result 22 states and 28 transitions. [2019-01-12 10:52:27,636 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 10:52:27,637 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2019-01-12 10:52:27,638 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 10:52:27,646 INFO L225 Difference]: With dead ends: 22 [2019-01-12 10:52:27,646 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 10:52:27,650 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 10:52:27,666 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 10:52:27,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 10:52:27,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 10:52:27,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 10:52:27,676 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 8 [2019-01-12 10:52:27,676 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 10:52:27,676 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 10:52:27,676 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 10:52:27,677 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 10:52:27,677 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 10:52:27,683 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2019-01-12 10:52:27,773 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-01-12 10:52:27,774 INFO L451 ceAbstractionStarter]: At program point L27-2(lines 27 33) the Hoare annotation is: true [2019-01-12 10:52:27,774 INFO L448 ceAbstractionStarter]: For program point L27-3(lines 27 33) no Hoare annotation was computed. [2019-01-12 10:52:27,774 INFO L448 ceAbstractionStarter]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-01-12 10:52:27,774 INFO L444 ceAbstractionStarter]: At program point L36(lines 10 37) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond 1) [2019-01-12 10:52:27,775 INFO L444 ceAbstractionStarter]: At program point L5-2(lines 4 9) the Hoare annotation is: (= ULTIMATE.start___VERIFIER_assert_~cond 1) [2019-01-12 10:52:27,776 INFO L448 ceAbstractionStarter]: For program point L-1(line -1) no Hoare annotation was computed. [2019-01-12 10:52:27,776 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-01-12 10:52:27,776 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-01-12 10:52:27,776 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION(line 6) no Hoare annotation was computed. [2019-01-12 10:52:27,776 INFO L448 ceAbstractionStarter]: For program point L18-2(lines 18 20) no Hoare annotation was computed. [2019-01-12 10:52:27,778 INFO L451 ceAbstractionStarter]: At program point L18-3(lines 18 20) the Hoare annotation is: true [2019-01-12 10:52:27,778 INFO L448 ceAbstractionStarter]: For program point L18-4(lines 18 20) no Hoare annotation was computed. [2019-01-12 10:52:27,778 INFO L448 ceAbstractionStarter]: For program point L6(line 6) no Hoare annotation was computed. [2019-01-12 10:52:27,794 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 10:52:27 BoogieIcfgContainer [2019-01-12 10:52:27,795 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 10:52:27,795 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 10:52:27,796 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 10:52:27,796 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 10:52:27,797 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:52:27" (3/4) ... [2019-01-12 10:52:27,801 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 10:52:27,813 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 6 nodes and edges [2019-01-12 10:52:27,814 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-01-12 10:52:27,814 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2019-01-12 10:52:27,878 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 10:52:27,878 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 10:52:27,879 INFO L168 Benchmark]: Toolchain (without parser) took 1376.34 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 951.3 MB in the beginning and 1.1 GB in the end (delta: -138.6 MB). Peak memory consumption was 3.0 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:27,881 INFO L168 Benchmark]: CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 10:52:27,882 INFO L168 Benchmark]: CACSL2BoogieTranslator took 296.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:27,883 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.28 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 10:52:27,884 INFO L168 Benchmark]: Boogie Preprocessor took 104.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:27,885 INFO L168 Benchmark]: RCFGBuilder took 331.52 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:27,885 INFO L168 Benchmark]: TraceAbstraction took 509.43 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. [2019-01-12 10:52:27,887 INFO L168 Benchmark]: Witness Printer took 83.08 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. [2019-01-12 10:52:27,892 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 296.56 ms. Allocated memory is still 1.0 GB. Free memory was 951.3 MB in the beginning and 940.6 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 46.28 ms. Allocated memory is still 1.0 GB. Free memory is still 940.6 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 104.29 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 141.6 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -196.3 MB). Peak memory consumption was 18.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 331.52 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: 20.3 MB). Peak memory consumption was 20.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 509.43 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: 20.0 MB). Peak memory consumption was 20.0 MB. Max. memory is 11.5 GB. * Witness Printer took 83.08 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: 6]: 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: 18]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: cond == 1 - InvariantResult [Line: 27]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 10]: Loop Invariant Derived loop invariant: cond == 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 14 locations, 1 error locations. SAFE Result, 0.4s OverallTime, 1 OverallIterations, 1 TraceHistogramMax, 0.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 12 SDtfs, 4 SDslu, 8 SDs, 0 SdLazy, 1 SolverSat, 0 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=14occurred 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, 7 NumberOfFragments, 8 HoareAnnotationTreeSize, 4 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 4 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 8 NumberOfCodeBlocks, 8 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 7 ConstructedInterpolants, 0 QuantifiedInterpolants, 63 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...