./Ultimate.py --spec /storage/repos/svcomp/c/properties/unreach-call.prp --file /storage/repos/svcomp/c/pthread-ext/18_read_write_lock_true-unreach-call.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/pthread-ext/18_read_write_lock_true-unreach-call.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 30255c5981d11991d2414e28c50bab33dbbcb910 .................................................................................................................................................................................................................................................................................................................................... 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 22:26:55,726 INFO L170 SettingsManager]: Resetting all preferences to default values... [2019-01-12 22:26:55,728 INFO L174 SettingsManager]: Resetting UltimateCore preferences to default values [2019-01-12 22:26:55,740 INFO L177 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-01-12 22:26:55,740 INFO L174 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-01-12 22:26:55,741 INFO L174 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-01-12 22:26:55,743 INFO L174 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-01-12 22:26:55,744 INFO L174 SettingsManager]: Resetting LassoRanker preferences to default values [2019-01-12 22:26:55,746 INFO L174 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-01-12 22:26:55,747 INFO L174 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-01-12 22:26:55,748 INFO L177 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-01-12 22:26:55,748 INFO L174 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-01-12 22:26:55,749 INFO L174 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-01-12 22:26:55,750 INFO L174 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-01-12 22:26:55,751 INFO L174 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-01-12 22:26:55,752 INFO L174 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-01-12 22:26:55,752 INFO L174 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-01-12 22:26:55,755 INFO L174 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-01-12 22:26:55,759 INFO L174 SettingsManager]: Resetting CodeCheck preferences to default values [2019-01-12 22:26:55,761 INFO L174 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-01-12 22:26:55,762 INFO L174 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-01-12 22:26:55,766 INFO L174 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-01-12 22:26:55,770 INFO L177 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-01-12 22:26:55,770 INFO L177 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-01-12 22:26:55,770 INFO L174 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-01-12 22:26:55,772 INFO L174 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-01-12 22:26:55,773 INFO L174 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-01-12 22:26:55,774 INFO L174 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-01-12 22:26:55,775 INFO L174 SettingsManager]: Resetting Witness Printer preferences to default values [2019-01-12 22:26:55,776 INFO L177 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-01-12 22:26:55,776 INFO L174 SettingsManager]: Resetting CDTParser preferences to default values [2019-01-12 22:26:55,776 INFO L177 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-01-12 22:26:55,777 INFO L177 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-01-12 22:26:55,777 INFO L174 SettingsManager]: Resetting SmtParser preferences to default values [2019-01-12 22:26:55,778 INFO L174 SettingsManager]: Resetting Witness Parser preferences to default values [2019-01-12 22:26:55,778 INFO L181 SettingsManager]: Finished resetting all preferences to default values... [2019-01-12 22:26:55,779 INFO L98 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2019-01-12 22:26:55,796 INFO L110 SettingsManager]: Loading preferences was successful [2019-01-12 22:26:55,796 INFO L112 SettingsManager]: Preferences different from defaults after loading the file: [2019-01-12 22:26:55,797 INFO L131 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-01-12 22:26:55,797 INFO L133 SettingsManager]: * Create parallel compositions if possible=false [2019-01-12 22:26:55,797 INFO L133 SettingsManager]: * Use SBE=true [2019-01-12 22:26:55,798 INFO L131 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-01-12 22:26:55,798 INFO L133 SettingsManager]: * sizeof long=4 [2019-01-12 22:26:55,798 INFO L133 SettingsManager]: * Overapproximate operations on floating types=true [2019-01-12 22:26:55,798 INFO L133 SettingsManager]: * sizeof POINTER=4 [2019-01-12 22:26:55,798 INFO L133 SettingsManager]: * Check division by zero=IGNORE [2019-01-12 22:26:55,798 INFO L133 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * sizeof long double=12 [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * Check if freed pointer was valid=false [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * Use constant arrays=true [2019-01-12 22:26:55,799 INFO L133 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-01-12 22:26:55,800 INFO L131 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-01-12 22:26:55,800 INFO L133 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-01-12 22:26:55,800 INFO L133 SettingsManager]: * To the following directory=./dump/ [2019-01-12 22:26:55,800 INFO L133 SettingsManager]: * SMT solver=External_DefaultMode [2019-01-12 22:26:55,800 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-01-12 22:26:55,801 INFO L131 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-01-12 22:26:55,801 INFO L133 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-01-12 22:26:55,801 INFO L133 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-01-12 22:26:55,801 INFO L133 SettingsManager]: * Trace refinement strategy=CAMEL [2019-01-12 22:26:55,801 INFO L133 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-01-12 22:26:55,801 INFO L133 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-01-12 22:26:55,802 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 -> 30255c5981d11991d2414e28c50bab33dbbcb910 [2019-01-12 22:26:55,856 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-01-12 22:26:55,869 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-01-12 22:26:55,873 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-01-12 22:26:55,875 INFO L271 PluginConnector]: Initializing CDTParser... [2019-01-12 22:26:55,875 INFO L276 PluginConnector]: CDTParser initialized [2019-01-12 22:26:55,876 INFO L418 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/svcomp/c/pthread-ext/18_read_write_lock_true-unreach-call.i [2019-01-12 22:26:55,934 INFO L221 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b9039f8/295f8df93c324d15bf8cd2c42ae83dfb/FLAG62090ccf1 [2019-01-12 22:26:56,429 INFO L307 CDTParser]: Found 1 translation units. [2019-01-12 22:26:56,431 INFO L161 CDTParser]: Scanning /storage/repos/svcomp/c/pthread-ext/18_read_write_lock_true-unreach-call.i [2019-01-12 22:26:56,449 INFO L355 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b9039f8/295f8df93c324d15bf8cd2c42ae83dfb/FLAG62090ccf1 [2019-01-12 22:26:56,719 INFO L363 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/74b9039f8/295f8df93c324d15bf8cd2c42ae83dfb [2019-01-12 22:26:56,724 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-01-12 22:26:56,726 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-01-12 22:26:56,727 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-01-12 22:26:56,727 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-01-12 22:26:56,731 INFO L276 PluginConnector]: CACSL2BoogieTranslator initialized [2019-01-12 22:26:56,732 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:26:56" (1/1) ... [2019-01-12 22:26:56,735 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2e38a7c1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:56, skipping insertion in model container [2019-01-12 22:26:56,735 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.01 10:26:56" (1/1) ... [2019-01-12 22:26:56,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-01-12 22:26:56,787 INFO L176 MainTranslator]: Built tables and reachable declarations [2019-01-12 22:26:57,161 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:26:57,173 INFO L191 MainTranslator]: Completed pre-run [2019-01-12 22:26:57,309 INFO L208 PostProcessor]: Analyzing one entry point: main [2019-01-12 22:26:57,390 INFO L195 MainTranslator]: Completed translation [2019-01-12 22:26:57,390 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57 WrapperNode [2019-01-12 22:26:57,390 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-01-12 22:26:57,391 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-01-12 22:26:57,391 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-01-12 22:26:57,391 INFO L276 PluginConnector]: Boogie Procedure Inliner initialized [2019-01-12 22:26:57,401 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,416 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-01-12 22:26:57,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-01-12 22:26:57,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-01-12 22:26:57,435 INFO L276 PluginConnector]: Boogie Preprocessor initialized [2019-01-12 22:26:57,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,454 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (1/1) ... [2019-01-12 22:26:57,456 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-01-12 22:26:57,457 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-01-12 22:26:57,457 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-01-12 22:26:57,457 INFO L276 PluginConnector]: RCFGBuilder initialized [2019-01-12 22:26:57,458 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (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 22:26:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-01-12 22:26:57,523 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-01-12 22:26:57,523 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-01-12 22:26:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-01-12 22:26:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-01-12 22:26:57,524 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-01-12 22:26:57,524 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-01-12 22:26:57,529 WARN L204 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-01-12 22:26:57,678 INFO L1501 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_w_returnLabel [2019-01-12 22:26:57,722 INFO L1501 $ProcedureCfgBuilder]: dropping label inside atomic statement: __VERIFIER_atomic_r_returnLabel [2019-01-12 22:26:57,954 INFO L281 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-01-12 22:26:57,955 INFO L286 CfgBuilder]: Removed 6 assue(true) statements. [2019-01-12 22:26:57,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:26:57 BoogieIcfgContainer [2019-01-12 22:26:57,956 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-01-12 22:26:57,957 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-01-12 22:26:57,957 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-01-12 22:26:57,962 INFO L276 PluginConnector]: TraceAbstraction initialized [2019-01-12 22:26:57,963 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.01 10:26:56" (1/3) ... [2019-01-12 22:26:57,963 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb5f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:26:57, skipping insertion in model container [2019-01-12 22:26:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.01 10:26:57" (2/3) ... [2019-01-12 22:26:57,964 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@25fb5f8e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.01 10:26:57, skipping insertion in model container [2019-01-12 22:26:57,964 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:26:57" (3/3) ... [2019-01-12 22:26:57,966 INFO L112 eAbstractionObserver]: Analyzing ICFG 18_read_write_lock_true-unreach-call.i [2019-01-12 22:26:57,996 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:57,996 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:57,996 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:57,996 WARN L317 ript$VariableManager]: TermVariabe Thread0_thr1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:57,997 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:57,997 WARN L317 ript$VariableManager]: TermVariabe |Thread0_thr1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-01-12 22:26:58,015 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-01-12 22:26:58,015 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-01-12 22:26:58,022 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-01-12 22:26:58,039 INFO L257 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-01-12 22:26:58,064 INFO L133 ementStrategyFactory]: Using default assertion order modulation [2019-01-12 22:26:58,065 INFO L382 AbstractCegarLoop]: Interprodecural is true [2019-01-12 22:26:58,065 INFO L383 AbstractCegarLoop]: Hoare is true [2019-01-12 22:26:58,065 INFO L384 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-01-12 22:26:58,065 INFO L385 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-01-12 22:26:58,065 INFO L386 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-01-12 22:26:58,066 INFO L387 AbstractCegarLoop]: Difference is false [2019-01-12 22:26:58,066 INFO L388 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-01-12 22:26:58,066 INFO L393 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-01-12 22:26:58,074 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 36places, 35 transitions [2019-01-12 22:26:58,091 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 125 states. [2019-01-12 22:26:58,093 INFO L276 IsEmpty]: Start isEmpty. Operand 125 states. [2019-01-12 22:26:58,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 20 [2019-01-12 22:26:58,102 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:26:58,103 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:26:58,105 INFO L423 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:26:58,111 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:26:58,112 INFO L82 PathProgramCache]: Analyzing trace with hash -1956366165, now seen corresponding path program 1 times [2019-01-12 22:26:58,114 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:26:58,114 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:26:58,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,166 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:26:58,166 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:26:58,295 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 22:26:58,297 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:26:58,298 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-01-12 22:26:58,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-01-12 22:26:58,312 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-01-12 22:26:58,312 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-01-12 22:26:58,315 INFO L87 Difference]: Start difference. First operand 125 states. Second operand 3 states. [2019-01-12 22:26:58,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:26:58,378 INFO L93 Difference]: Finished difference Result 165 states and 279 transitions. [2019-01-12 22:26:58,379 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-01-12 22:26:58,380 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 19 [2019-01-12 22:26:58,381 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:26:58,389 INFO L225 Difference]: With dead ends: 165 [2019-01-12 22:26:58,389 INFO L226 Difference]: Without dead ends: 37 [2019-01-12 22:26:58,391 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 22:26:58,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2019-01-12 22:26:58,418 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2019-01-12 22:26:58,420 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 37 states. [2019-01-12 22:26:58,421 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 48 transitions. [2019-01-12 22:26:58,422 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 48 transitions. Word has length 19 [2019-01-12 22:26:58,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:26:58,423 INFO L480 AbstractCegarLoop]: Abstraction has 37 states and 48 transitions. [2019-01-12 22:26:58,423 INFO L481 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-01-12 22:26:58,423 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 48 transitions. [2019-01-12 22:26:58,424 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-12 22:26:58,424 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:26:58,425 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:26:58,425 INFO L423 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:26:58,425 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:26:58,426 INFO L82 PathProgramCache]: Analyzing trace with hash 1943260432, now seen corresponding path program 1 times [2019-01-12 22:26:58,426 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:26:58,426 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:26:58,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,432 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:26:58,432 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:26:58,587 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 22:26:58,588 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:26:58,588 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 22:26:58,589 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 22:26:58,590 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 22:26:58,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:26:58,590 INFO L87 Difference]: Start difference. First operand 37 states and 48 transitions. Second operand 4 states. [2019-01-12 22:26:58,632 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:26:58,633 INFO L93 Difference]: Finished difference Result 37 states and 47 transitions. [2019-01-12 22:26:58,634 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 22:26:58,635 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-01-12 22:26:58,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:26:58,636 INFO L225 Difference]: With dead ends: 37 [2019-01-12 22:26:58,636 INFO L226 Difference]: Without dead ends: 32 [2019-01-12 22:26:58,637 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:26:58,638 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32 states. [2019-01-12 22:26:58,641 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32 to 32. [2019-01-12 22:26:58,641 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32 states. [2019-01-12 22:26:58,642 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 38 transitions. [2019-01-12 22:26:58,642 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 38 transitions. Word has length 21 [2019-01-12 22:26:58,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:26:58,643 INFO L480 AbstractCegarLoop]: Abstraction has 32 states and 38 transitions. [2019-01-12 22:26:58,643 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 22:26:58,643 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 38 transitions. [2019-01-12 22:26:58,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2019-01-12 22:26:58,644 INFO L394 BasicCegarLoop]: Found error trace [2019-01-12 22:26:58,644 INFO L402 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-01-12 22:26:58,644 INFO L423 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-01-12 22:26:58,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-01-12 22:26:58,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1127946220, now seen corresponding path program 2 times [2019-01-12 22:26:58,645 INFO L223 ckRefinementStrategy]: Switched to mode SMTINTERPOL_TREE_INTERPOLANTS [2019-01-12 22:26:58,645 INFO L69 tionRefinementEngine]: Using refinement strategy CamelRefinementStrategy [2019-01-12 22:26:58,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,650 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-01-12 22:26:58,650 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-01-12 22:26:58,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-01-12 22:26:58,782 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 22:26:58,782 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-01-12 22:26:58,782 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-01-12 22:26:58,783 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-01-12 22:26:58,783 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-01-12 22:26:58,783 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:26:58,783 INFO L87 Difference]: Start difference. First operand 32 states and 38 transitions. Second operand 4 states. [2019-01-12 22:26:58,810 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-01-12 22:26:58,810 INFO L93 Difference]: Finished difference Result 18 states and 17 transitions. [2019-01-12 22:26:58,811 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-01-12 22:26:58,811 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 21 [2019-01-12 22:26:58,812 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-01-12 22:26:58,812 INFO L225 Difference]: With dead ends: 18 [2019-01-12 22:26:58,812 INFO L226 Difference]: Without dead ends: 0 [2019-01-12 22:26:58,813 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-01-12 22:26:58,813 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-01-12 22:26:58,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-01-12 22:26:58,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-01-12 22:26:58,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-01-12 22:26:58,814 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 21 [2019-01-12 22:26:58,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-01-12 22:26:58,814 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-01-12 22:26:58,814 INFO L481 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-01-12 22:26:58,814 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-01-12 22:26:58,815 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-01-12 22:26:58,817 INFO L305 ceAbstractionStarter]: Did not count any witness invariants because Icfg is not BoogieIcfg [2019-01-12 22:26:58,819 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.01 10:26:58 BasicIcfg [2019-01-12 22:26:58,819 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-01-12 22:26:58,819 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-01-12 22:26:58,819 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-01-12 22:26:58,819 INFO L276 PluginConnector]: Witness Printer initialized [2019-01-12 22:26:58,820 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.01 10:26:57" (3/4) ... [2019-01-12 22:26:58,824 INFO L144 WitnessPrinter]: Generating witness for correct program [2019-01-12 22:26:58,831 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure thr1 [2019-01-12 22:26:58,835 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 7 nodes and edges [2019-01-12 22:26:58,835 INFO L905 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2019-01-12 22:26:58,877 INFO L145 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-01-12 22:26:58,877 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-01-12 22:26:58,878 INFO L168 Benchmark]: Toolchain (without parser) took 2153.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 946.0 MB in the beginning and 1.0 GB in the end (delta: -93.8 MB). Peak memory consumption was 39.9 MB. Max. memory is 11.5 GB. [2019-01-12 22:26:58,880 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:26:58,881 INFO L168 Benchmark]: CACSL2BoogieTranslator took 663.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. [2019-01-12 22:26:58,882 INFO L168 Benchmark]: Boogie Procedure Inliner took 43.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:26:58,882 INFO L168 Benchmark]: Boogie Preprocessor took 21.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-01-12 22:26:58,883 INFO L168 Benchmark]: RCFGBuilder took 499.92 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. [2019-01-12 22:26:58,883 INFO L168 Benchmark]: TraceAbstraction took 861.62 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. [2019-01-12 22:26:58,884 INFO L168 Benchmark]: Witness Printer took 58.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2019-01-12 22:26:58,888 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 972.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 663.85 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 133.7 MB). Free memory was 940.6 MB in the beginning and 1.1 GB in the end (delta: -165.4 MB). Peak memory consumption was 24.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 43.75 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 21.14 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 499.92 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: 18.3 MB). Peak memory consumption was 18.3 MB. Max. memory is 11.5 GB. * TraceAbstraction took 861.62 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: 41.1 MB). Peak memory consumption was 41.1 MB. Max. memory is 11.5 GB. * Witness Printer took 58.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 1.0 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 657]: 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 3 procedures, 42 locations, 1 error locations. SAFE Result, 0.7s OverallTime, 3 OverallIterations, 1 TraceHistogramMax, 0.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 83 SDtfs, 28 SDslu, 75 SDs, 0 SdLazy, 15 SolverSat, 2 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=125occurred 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, 3 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 61 NumberOfCodeBlocks, 61 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 58 ConstructedInterpolants, 0 QuantifiedInterpolants, 2340 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...