./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 91b1670e Calling Ultimate with: java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 91d2600fad1210650d8ad3da481cdcc11b280095 .............................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-91b1670 [2018-11-28 18:49:44,678 INFO L170 SettingsManager]: Resetting all preferences to default values... [2018-11-28 18:49:44,683 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2018-11-28 18:49:44,695 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2018-11-28 18:49:44,695 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2018-11-28 18:49:44,696 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2018-11-28 18:49:44,697 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2018-11-28 18:49:44,699 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2018-11-28 18:49:44,701 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2018-11-28 18:49:44,701 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2018-11-28 18:49:44,702 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2018-11-28 18:49:44,703 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2018-11-28 18:49:44,704 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2018-11-28 18:49:44,705 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2018-11-28 18:49:44,708 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2018-11-28 18:49:44,709 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2018-11-28 18:49:44,709 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2018-11-28 18:49:44,711 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2018-11-28 18:49:44,713 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2018-11-28 18:49:44,715 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2018-11-28 18:49:44,715 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2018-11-28 18:49:44,717 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2018-11-28 18:49:44,719 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2018-11-28 18:49:44,719 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2018-11-28 18:49:44,719 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2018-11-28 18:49:44,720 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2018-11-28 18:49:44,721 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2018-11-28 18:49:44,722 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2018-11-28 18:49:44,723 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2018-11-28 18:49:44,724 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2018-11-28 18:49:44,724 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2018-11-28 18:49:44,725 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2018-11-28 18:49:44,725 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2018-11-28 18:49:44,725 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2018-11-28 18:49:44,726 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2018-11-28 18:49:44,727 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2018-11-28 18:49:44,727 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2018-11-28 18:49:44,750 INFO L110 SettingsManager]: Loading preferences was successful [2018-11-28 18:49:44,750 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2018-11-28 18:49:44,751 INFO L131 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2018-11-28 18:49:44,751 INFO L133 SettingsManager]: * ... calls to implemented procedures=ONLY_FOR_CONCURRENT_PROGRAMS [2018-11-28 18:49:44,752 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2018-11-28 18:49:44,752 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2018-11-28 18:49:44,752 INFO L133 SettingsManager]: * Use SBE=true [2018-11-28 18:49:44,752 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2018-11-28 18:49:44,753 INFO L133 SettingsManager]: * sizeof long=4 [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * sizeof POINTER=4 [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2018-11-28 18:49:44,754 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2018-11-28 18:49:44,755 INFO L133 SettingsManager]: * sizeof long double=12 [2018-11-28 18:49:44,755 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2018-11-28 18:49:44,755 INFO L133 SettingsManager]: * Use constant arrays=true [2018-11-28 18:49:44,755 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2018-11-28 18:49:44,755 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2018-11-28 18:49:44,756 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2018-11-28 18:49:44,757 INFO L133 SettingsManager]: * To the following directory=./dump/ [2018-11-28 18:49:44,757 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2018-11-28 18:49:44,757 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:49:44,758 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2018-11-28 18:49:44,758 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2018-11-28 18:49:44,758 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2018-11-28 18:49:44,758 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2018-11-28 18:49:44,758 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2018-11-28 18:49:44,758 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2018-11-28 18:49:44,760 INFO L133 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 91d2600fad1210650d8ad3da481cdcc11b280095 [2018-11-28 18:49:44,805 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2018-11-28 18:49:44,820 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2018-11-28 18:49:44,825 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2018-11-28 18:49:44,826 INFO L271 PluginConnector]: Initializing CDTParser... [2018-11-28 18:49:44,827 INFO L276 PluginConnector]: CDTParser initialized [2018-11-28 18:49:44,827 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 18:49:44,883 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ec57d6f/24a67509e7704ad5abeee291861c6a9d/FLAGc492a0151 [2018-11-28 18:49:45,322 INFO L307 CDTParser]: Found 1 translation units. [2018-11-28 18:49:45,325 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/recursive/Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 18:49:45,333 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ec57d6f/24a67509e7704ad5abeee291861c6a9d/FLAGc492a0151 [2018-11-28 18:49:45,677 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63ec57d6f/24a67509e7704ad5abeee291861c6a9d [2018-11-28 18:49:45,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2018-11-28 18:49:45,682 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2018-11-28 18:49:45,683 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2018-11-28 18:49:45,684 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2018-11-28 18:49:45,687 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2018-11-28 18:49:45,688 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6ff8549b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45, skipping insertion in model container [2018-11-28 18:49:45,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,702 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2018-11-28 18:49:45,724 INFO L176 MainTranslator]: Built tables and reachable declarations [2018-11-28 18:49:45,911 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:49:45,916 INFO L191 MainTranslator]: Completed pre-run [2018-11-28 18:49:45,935 INFO L203 PostProcessor]: Analyzing one entry point: main [2018-11-28 18:49:45,949 INFO L195 MainTranslator]: Completed translation [2018-11-28 18:49:45,950 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45 WrapperNode [2018-11-28 18:49:45,950 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2018-11-28 18:49:45,950 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2018-11-28 18:49:45,951 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2018-11-28 18:49:45,951 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2018-11-28 18:49:45,958 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,962 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,968 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2018-11-28 18:49:45,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2018-11-28 18:49:45,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2018-11-28 18:49:45,968 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2018-11-28 18:49:45,978 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,978 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,979 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,980 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,987 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,990 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,991 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... [2018-11-28 18:49:45,993 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2018-11-28 18:49:45,999 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2018-11-28 18:49:45,999 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2018-11-28 18:49:45,999 INFO L276 PluginConnector]: RCFGBuilder initialized [2018-11-28 18:49:46,000 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2018-11-28 18:49:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2018-11-28 18:49:46,116 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2018-11-28 18:49:46,116 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2018-11-28 18:49:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2018-11-28 18:49:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure main [2018-11-28 18:49:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2018-11-28 18:49:46,117 INFO L130 BoogieDeclarations]: Found specification of procedure addition [2018-11-28 18:49:46,117 INFO L138 BoogieDeclarations]: Found implementation of procedure addition [2018-11-28 18:49:46,386 INFO L275 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2018-11-28 18:49:46,388 INFO L280 CfgBuilder]: Removed 0 assue(true) statements. [2018-11-28 18:49:46,389 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:49:46 BoogieIcfgContainer [2018-11-28 18:49:46,389 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2018-11-28 18:49:46,390 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2018-11-28 18:49:46,390 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2018-11-28 18:49:46,394 INFO L276 PluginConnector]: TraceAbstraction initialized [2018-11-28 18:49:46,394 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 06:49:45" (1/3) ... [2018-11-28 18:49:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abf114a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:49:46, skipping insertion in model container [2018-11-28 18:49:46,395 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 06:49:45" (2/3) ... [2018-11-28 18:49:46,395 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2abf114a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 06:49:46, skipping insertion in model container [2018-11-28 18:49:46,396 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:49:46" (3/3) ... [2018-11-28 18:49:46,397 INFO L112 eAbstractionObserver]: Analyzing ICFG Addition01_true-unreach-call_true-no-overflow_true-termination.c [2018-11-28 18:49:46,409 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2018-11-28 18:49:46,423 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2018-11-28 18:49:46,449 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2018-11-28 18:49:46,504 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2018-11-28 18:49:46,504 INFO L382 AbstractCegarLoop]: Interprodecural is true [2018-11-28 18:49:46,505 INFO L383 AbstractCegarLoop]: Hoare is true [2018-11-28 18:49:46,505 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2018-11-28 18:49:46,505 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2018-11-28 18:49:46,505 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2018-11-28 18:49:46,505 INFO L387 AbstractCegarLoop]: Difference is false [2018-11-28 18:49:46,506 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2018-11-28 18:49:46,506 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2018-11-28 18:49:46,550 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states. [2018-11-28 18:49:46,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2018-11-28 18:49:46,562 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:49:46,563 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:49:46,566 INFO L423 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:49:46,583 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:49:46,583 INFO L82 PathProgramCache]: Analyzing trace with hash -854965079, now seen corresponding path program 1 times [2018-11-28 18:49:46,585 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:49:46,586 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:49:46,631 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:46,632 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:46,632 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:46,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:46,959 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:49:46,962 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:49:46,962 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2018-11-28 18:49:46,966 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2018-11-28 18:49:46,978 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2018-11-28 18:49:46,979 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2018-11-28 18:49:46,982 INFO L87 Difference]: Start difference. First operand 26 states. Second operand 6 states. [2018-11-28 18:49:47,489 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:49:47,490 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2018-11-28 18:49:47,490 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:49:47,491 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 15 [2018-11-28 18:49:47,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:49:47,502 INFO L225 Difference]: With dead ends: 38 [2018-11-28 18:49:47,502 INFO L226 Difference]: Without dead ends: 24 [2018-11-28 18:49:47,505 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:49:47,520 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2018-11-28 18:49:47,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2018-11-28 18:49:47,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 18:49:47,547 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 29 transitions. [2018-11-28 18:49:47,549 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 29 transitions. Word has length 15 [2018-11-28 18:49:47,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:49:47,549 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 29 transitions. [2018-11-28 18:49:47,550 INFO L481 AbstractCegarLoop]: Interpolant automaton has 6 states. [2018-11-28 18:49:47,550 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 29 transitions. [2018-11-28 18:49:47,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 18 [2018-11-28 18:49:47,552 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:49:47,552 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:49:47,552 INFO L423 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:49:47,553 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:49:47,553 INFO L82 PathProgramCache]: Analyzing trace with hash -1632999070, now seen corresponding path program 1 times [2018-11-28 18:49:47,553 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:49:47,553 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:49:47,554 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:47,554 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:47,555 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:47,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:47,621 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2018-11-28 18:49:47,621 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2018-11-28 18:49:47,621 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2018-11-28 18:49:47,623 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2018-11-28 18:49:47,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2018-11-28 18:49:47,627 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:49:47,628 INFO L87 Difference]: Start difference. First operand 24 states and 29 transitions. Second operand 4 states. [2018-11-28 18:49:47,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:49:47,691 INFO L93 Difference]: Finished difference Result 34 states and 42 transitions. [2018-11-28 18:49:47,691 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2018-11-28 18:49:47,691 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 17 [2018-11-28 18:49:47,692 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:49:47,692 INFO L225 Difference]: With dead ends: 34 [2018-11-28 18:49:47,693 INFO L226 Difference]: Without dead ends: 26 [2018-11-28 18:49:47,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2018-11-28 18:49:47,694 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26 states. [2018-11-28 18:49:47,700 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26 to 24. [2018-11-28 18:49:47,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24 states. [2018-11-28 18:49:47,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 28 transitions. [2018-11-28 18:49:47,702 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 28 transitions. Word has length 17 [2018-11-28 18:49:47,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:49:47,702 INFO L480 AbstractCegarLoop]: Abstraction has 24 states and 28 transitions. [2018-11-28 18:49:47,702 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2018-11-28 18:49:47,702 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 28 transitions. [2018-11-28 18:49:47,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2018-11-28 18:49:47,704 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:49:47,704 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:49:47,704 INFO L423 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:49:47,704 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:49:47,705 INFO L82 PathProgramCache]: Analyzing trace with hash 1746800232, now seen corresponding path program 1 times [2018-11-28 18:49:47,705 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:49:47,705 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:49:47,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:47,706 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:47,706 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:47,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:48,187 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:49:48,187 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:49:48,187 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:49:48,199 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:48,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:48,238 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:49:48,944 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:49:48,972 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:49:48,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2018-11-28 18:49:48,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2018-11-28 18:49:48,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2018-11-28 18:49:48,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=259, Unknown=0, NotChecked=0, Total=306 [2018-11-28 18:49:48,974 INFO L87 Difference]: Start difference. First operand 24 states and 28 transitions. Second operand 18 states. [2018-11-28 18:49:49,463 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:49:49,463 INFO L93 Difference]: Finished difference Result 38 states and 47 transitions. [2018-11-28 18:49:49,464 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2018-11-28 18:49:49,465 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 22 [2018-11-28 18:49:49,465 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:49:49,466 INFO L225 Difference]: With dead ends: 38 [2018-11-28 18:49:49,466 INFO L226 Difference]: Without dead ends: 32 [2018-11-28 18:49:49,467 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 63 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=96, Invalid=410, Unknown=0, NotChecked=0, Total=506 [2018-11-28 18:49:49,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2018-11-28 18:49:49,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 25. [2018-11-28 18:49:49,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25 states. [2018-11-28 18:49:49,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2018-11-28 18:49:49,475 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 22 [2018-11-28 18:49:49,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:49:49,476 INFO L480 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2018-11-28 18:49:49,476 INFO L481 AbstractCegarLoop]: Interpolant automaton has 18 states. [2018-11-28 18:49:49,476 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2018-11-28 18:49:49,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 24 [2018-11-28 18:49:49,478 INFO L394 BasicCegarLoop]: Found error trace [2018-11-28 18:49:49,478 INFO L402 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2018-11-28 18:49:49,478 INFO L423 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2018-11-28 18:49:49,478 INFO L141 PredicateUnifier]: Initialized classic predicate unifier [2018-11-28 18:49:49,479 INFO L82 PathProgramCache]: Analyzing trace with hash -1365148867, now seen corresponding path program 1 times [2018-11-28 18:49:49,479 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2018-11-28 18:49:49,479 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2018-11-28 18:49:49,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:49,480 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:49,480 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2018-11-28 18:49:49,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:49,566 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:49:49,566 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2018-11-28 18:49:49,566 INFO L223 ckRefinementStrategy]: Switched to mode Z3_FP No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:12000 [2018-11-28 18:49:49,584 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2018-11-28 18:49:49,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2018-11-28 18:49:49,604 INFO L273 TraceCheckSpWp]: Computing forward predicates... [2018-11-28 18:49:49,615 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 1 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2018-11-28 18:49:49,636 INFO L312 seRefinementStrategy]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2018-11-28 18:49:49,636 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 5] total 7 [2018-11-28 18:49:49,637 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2018-11-28 18:49:49,637 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2018-11-28 18:49:49,637 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:49:49,637 INFO L87 Difference]: Start difference. First operand 25 states and 29 transitions. Second operand 7 states. [2018-11-28 18:49:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2018-11-28 18:49:49,756 INFO L93 Difference]: Finished difference Result 27 states and 32 transitions. [2018-11-28 18:49:49,757 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2018-11-28 18:49:49,757 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 23 [2018-11-28 18:49:49,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2018-11-28 18:49:49,757 INFO L225 Difference]: With dead ends: 27 [2018-11-28 18:49:49,758 INFO L226 Difference]: Without dead ends: 0 [2018-11-28 18:49:49,759 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2018-11-28 18:49:49,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2018-11-28 18:49:49,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2018-11-28 18:49:49,759 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2018-11-28 18:49:49,759 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2018-11-28 18:49:49,760 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 23 [2018-11-28 18:49:49,760 INFO L84 Accepts]: Finished accepts. word is rejected. [2018-11-28 18:49:49,760 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2018-11-28 18:49:49,760 INFO L481 AbstractCegarLoop]: Interpolant automaton has 7 states. [2018-11-28 18:49:49,760 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2018-11-28 18:49:49,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2018-11-28 18:49:49,765 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2018-11-28 18:49:49,918 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2018-11-28 18:49:49,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:49:49,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2018-11-28 18:49:49,919 INFO L451 ceAbstractionStarter]: At program point L-1(line -1) the Hoare annotation is: true [2018-11-28 18:49:49,919 INFO L451 ceAbstractionStarter]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2018-11-28 18:49:49,919 INFO L448 ceAbstractionStarter]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2018-11-28 18:49:49,919 INFO L451 ceAbstractionStarter]: At program point mainENTRY(lines 26 45) the Hoare annotation is: true [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point L28(lines 28 32) no Hoare annotation was computed. [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point mainEXIT(lines 26 45) no Hoare annotation was computed. [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point mainFINAL(lines 26 45) no Hoare annotation was computed. [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point L43(line 43) no Hoare annotation was computed. [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 43) no Hoare annotation was computed. [2018-11-28 18:49:49,920 INFO L448 ceAbstractionStarter]: For program point L40(lines 40 44) no Hoare annotation was computed. [2018-11-28 18:49:49,922 INFO L444 ceAbstractionStarter]: At program point L39(line 39) the Hoare annotation is: (<= 0 main_~n~0) [2018-11-28 18:49:49,922 INFO L448 ceAbstractionStarter]: For program point L39-1(line 39) no Hoare annotation was computed. [2018-11-28 18:49:49,922 INFO L448 ceAbstractionStarter]: For program point L34(lines 34 38) no Hoare annotation was computed. [2018-11-28 18:49:49,923 INFO L448 ceAbstractionStarter]: For program point additionFINAL(lines 13 23) no Hoare annotation was computed. [2018-11-28 18:49:49,923 INFO L444 ceAbstractionStarter]: At program point L21(line 21) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0) (<= (+ addition_~n 1) 0))) [2018-11-28 18:49:49,923 INFO L448 ceAbstractionStarter]: For program point L20(lines 20 22) no Hoare annotation was computed. [2018-11-28 18:49:49,923 INFO L448 ceAbstractionStarter]: For program point L21-1(line 21) no Hoare annotation was computed. [2018-11-28 18:49:49,923 INFO L444 ceAbstractionStarter]: At program point L18(line 18) the Hoare annotation is: (let ((.cse1 (+ |addition_#in~n| |addition_#in~m|)) (.cse0 (+ addition_~m addition_~n))) (and (<= .cse0 .cse1) (< 0 addition_~n) (= |addition_#in~m| addition_~m) (<= .cse1 .cse0))) [2018-11-28 18:49:49,923 INFO L448 ceAbstractionStarter]: For program point L17(lines 17 19) no Hoare annotation was computed. [2018-11-28 18:49:49,924 INFO L448 ceAbstractionStarter]: For program point L18-1(line 18) no Hoare annotation was computed. [2018-11-28 18:49:49,925 INFO L451 ceAbstractionStarter]: At program point additionENTRY(lines 13 23) the Hoare annotation is: true [2018-11-28 18:49:49,925 INFO L448 ceAbstractionStarter]: For program point L14(lines 14 16) no Hoare annotation was computed. [2018-11-28 18:49:49,926 INFO L448 ceAbstractionStarter]: For program point additionEXIT(lines 13 23) no Hoare annotation was computed. [2018-11-28 18:49:49,929 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 06:49:49 BoogieIcfgContainer [2018-11-28 18:49:49,929 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2018-11-28 18:49:49,930 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2018-11-28 18:49:49,930 INFO L271 PluginConnector]: Initializing Witness Printer... [2018-11-28 18:49:49,930 INFO L276 PluginConnector]: Witness Printer initialized [2018-11-28 18:49:49,931 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 06:49:46" (3/4) ... [2018-11-28 18:49:49,934 INFO L144 WitnessPrinter]: Generating witness for correct program [2018-11-28 18:49:49,940 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure ULTIMATE.init [2018-11-28 18:49:49,941 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure main [2018-11-28 18:49:49,941 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure addition [2018-11-28 18:49:49,946 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2018-11-28 18:49:49,946 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2018-11-28 18:49:49,947 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2018-11-28 18:49:50,005 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2018-11-28 18:49:50,005 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2018-11-28 18:49:50,006 INFO L168 Benchmark]: Toolchain (without parser) took 4325.06 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 951.3 MB in the beginning and 944.1 MB in the end (delta: 7.2 MB). Peak memory consumption was 143.5 MB. Max. memory is 11.5 GB. [2018-11-28 18:49:50,008 INFO L168 Benchmark]: CDTParser took 0.15 ms. Allocated memory is still 1.0 GB. Free memory is still 978.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2018-11-28 18:49:50,009 INFO L168 Benchmark]: CACSL2BoogieTranslator took 266.64 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. [2018-11-28 18:49:50,009 INFO L168 Benchmark]: Boogie Procedure Inliner took 17.56 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. [2018-11-28 18:49:50,010 INFO L168 Benchmark]: Boogie Preprocessor took 30.01 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. [2018-11-28 18:49:50,010 INFO L168 Benchmark]: RCFGBuilder took 390.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2018-11-28 18:49:50,011 INFO L168 Benchmark]: TraceAbstraction took 3539.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.8 MB in the end (delta: 163.8 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. [2018-11-28 18:49:50,011 INFO L168 Benchmark]: Witness Printer took 75.84 ms. Allocated memory is still 1.2 GB. Free memory was 950.8 MB in the beginning and 944.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2018-11-28 18:49:50,015 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.15 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 266.64 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 17.56 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 30.01 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. * RCFGBuilder took 390.61 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 136.3 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -174.0 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * TraceAbstraction took 3539.17 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 950.8 MB in the end (delta: 163.8 MB). Peak memory consumption was 163.8 MB. Max. memory is 11.5 GB. * Witness Printer took 75.84 ms. Allocated memory is still 1.2 GB. Free memory was 950.8 MB in the beginning and 944.1 MB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 43]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 26 locations, 1 error locations. SAFE Result, 3.4s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.1s HoareAnnotationTime, HoareTripleCheckerStatistics: 85 SDtfs, 70 SDslu, 214 SDs, 0 SdLazy, 267 SolverSat, 42 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 76 GetRequests, 43 SyntacticMatches, 0 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=26occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 9 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 8 LocationsWithAnnotation, 14 PreInvPairs, 14 NumberOfFragments, 52 HoareAnnotationTreeSize, 14 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 FomulaSimplificationsInter, 16 FormulaSimplificationTreeSizeReductionInter, 0.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.5s InterpolantComputationTime, 122 NumberOfCodeBlocks, 122 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 116 ConstructedInterpolants, 0 QuantifiedInterpolants, 8955 SizeOfPredicates, 9 NumberOfNonLiveVariables, 129 ConjunctsInSsa, 31 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 8/16 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...