./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_o3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 906a4fb5 Calling Ultimate with: /usr/bin/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 ../sv-benchmarks/c/recursive-simple/id_o3.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-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 ! overflow) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 02fc4bd1d36800792ed4ab31b3ee599492a65576 .................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-906a4fb [2020-10-19 18:36:16,493 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 18:36:16,496 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 18:36:16,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 18:36:16,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 18:36:16,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 18:36:16,532 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 18:36:16,535 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 18:36:16,537 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 18:36:16,538 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 18:36:16,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 18:36:16,541 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 18:36:16,542 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 18:36:16,543 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 18:36:16,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 18:36:16,546 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 18:36:16,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 18:36:16,549 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 18:36:16,551 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 18:36:16,553 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 18:36:16,555 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 18:36:16,557 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 18:36:16,558 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 18:36:16,559 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 18:36:16,562 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 18:36:16,563 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 18:36:16,563 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 18:36:16,564 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 18:36:16,565 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 18:36:16,566 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 18:36:16,567 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 18:36:16,568 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 18:36:16,569 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 18:36:16,570 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 18:36:16,571 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 18:36:16,571 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 18:36:16,572 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 18:36:16,573 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 18:36:16,573 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 18:36:16,574 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 18:36:16,575 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 18:36:16,576 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-19 18:36:16,602 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 18:36:16,603 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 18:36:16,604 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 18:36:16,605 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 18:36:16,605 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 18:36:16,605 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 18:36:16,605 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 18:36:16,606 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 18:36:16,606 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 18:36:16,606 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 18:36:16,607 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 18:36:16,607 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-19 18:36:16,607 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-19 18:36:16,607 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-19 18:36:16,608 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-19 18:36:16,608 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 18:36:16,608 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 18:36:16,609 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 18:36:16,609 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-19 18:36:16,609 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 18:36:16,610 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 18:36:16,610 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-19 18:36:16,610 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-19 18:36:16,610 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-19 18:36:16,611 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 18:36:16,611 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-19 18:36:16,611 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-19 18:36:16,612 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 18:36:16,612 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-19 18:36:16,612 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-19 18:36:16,612 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 18:36:16,613 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 ! overflow) ) 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 -> 02fc4bd1d36800792ed4ab31b3ee599492a65576 [2020-10-19 18:36:16,961 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 18:36:16,974 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 18:36:16,978 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 18:36:16,981 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 18:36:16,982 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 18:36:16,983 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_o3.c [2020-10-19 18:36:17,052 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff8f86fc/a85f8ed914d74f3faced42aadc84cd30/FLAGa2cd9019c [2020-10-19 18:36:17,546 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 18:36:17,547 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_o3.c [2020-10-19 18:36:17,555 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff8f86fc/a85f8ed914d74f3faced42aadc84cd30/FLAGa2cd9019c [2020-10-19 18:36:17,877 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/6ff8f86fc/a85f8ed914d74f3faced42aadc84cd30 [2020-10-19 18:36:17,881 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 18:36:17,889 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 18:36:17,890 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 18:36:17,890 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 18:36:17,894 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 18:36:17,895 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:36:17" (1/1) ... [2020-10-19 18:36:17,900 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3875792 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:17, skipping insertion in model container [2020-10-19 18:36:17,901 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 06:36:17" (1/1) ... [2020-10-19 18:36:17,911 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 18:36:17,932 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 18:36:18,165 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:36:18,183 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 18:36:18,203 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 18:36:18,223 INFO L208 MainTranslator]: Completed translation [2020-10-19 18:36:18,224 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18 WrapperNode [2020-10-19 18:36:18,224 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 18:36:18,225 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 18:36:18,226 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 18:36:18,226 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 18:36:18,236 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,243 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,260 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 18:36:18,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 18:36:18,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 18:36:18,261 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 18:36:18,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,331 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,336 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,337 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (1/1) ... [2020-10-19 18:36:18,339 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 18:36:18,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 18:36:18,341 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 18:36:18,342 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 18:36:18,343 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (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 [2020-10-19 18:36:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 18:36:18,409 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 18:36:18,409 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 18:36:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-19 18:36:18,410 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-19 18:36:18,410 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 18:36:18,603 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 18:36:18,604 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-19 18:36:18,606 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:18 BoogieIcfgContainer [2020-10-19 18:36:18,606 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 18:36:18,608 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-19 18:36:18,608 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-19 18:36:18,612 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-19 18:36:18,612 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.10 06:36:17" (1/3) ... [2020-10-19 18:36:18,613 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@231409b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:36:18, skipping insertion in model container [2020-10-19 18:36:18,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 06:36:18" (2/3) ... [2020-10-19 18:36:18,614 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@231409b0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.10 06:36:18, skipping insertion in model container [2020-10-19 18:36:18,614 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:18" (3/3) ... [2020-10-19 18:36:18,616 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o3.c [2020-10-19 18:36:18,629 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-19 18:36:18,637 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-19 18:36:18,653 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-19 18:36:18,691 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-19 18:36:18,691 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-19 18:36:18,691 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-19 18:36:18,692 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 18:36:18,692 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 18:36:18,692 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-19 18:36:18,692 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 18:36:18,692 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-19 18:36:18,713 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-19 18:36:18,723 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-19 18:36:18,733 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-19 18:36:18,814 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-19 18:36:18,814 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-19 18:36:18,814 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-19 18:36:18,814 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-19 18:36:18,814 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-19 18:36:18,815 INFO L274 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-10-19 18:36:18,815 INFO L277 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-10-19 18:36:18,816 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-19 18:36:18,816 INFO L274 CegarLoopResult]: For program point L11(lines 11 17) no Hoare annotation was computed. [2020-10-19 18:36:18,816 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-19 18:36:18,817 INFO L274 CegarLoopResult]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2020-10-19 18:36:18,817 INFO L274 CegarLoopResult]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2020-10-19 18:36:18,817 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-19 18:36:18,817 INFO L277 CegarLoopResult]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2020-10-19 18:36:18,818 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-19 18:36:18,818 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-19 18:36:18,824 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.10 06:36:18 BoogieIcfgContainer [2020-10-19 18:36:18,824 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-19 18:36:18,825 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 18:36:18,825 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 18:36:18,825 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 18:36:18,826 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 06:36:18" (3/4) ... [2020-10-19 18:36:18,831 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-19 18:36:18,842 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-10-19 18:36:18,847 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-19 18:36:18,848 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-19 18:36:18,848 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:36:18,849 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-19 18:36:18,902 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 18:36:18,902 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 18:36:18,906 INFO L168 Benchmark]: Toolchain (without parser) took 1021.65 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 954.6 MB in the beginning and 1.1 GB in the end (delta: -134.3 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:18,907 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:18,908 INFO L168 Benchmark]: CACSL2BoogieTranslator took 334.87 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:18,908 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.83 ms. Allocated memory is still 1.0 GB. Free memory is still 943.9 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 18:36:18,910 INFO L168 Benchmark]: Boogie Preprocessor took 78.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:18,911 INFO L168 Benchmark]: RCFGBuilder took 267.26 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:18,912 INFO L168 Benchmark]: TraceAbstraction took 216.59 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. [2020-10-19 18:36:18,912 INFO L168 Benchmark]: Witness Printer took 77.91 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. [2020-10-19 18:36:18,917 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 334.87 ms. Allocated memory is still 1.0 GB. Free memory was 954.6 MB in the beginning and 943.9 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 34.83 ms. Allocated memory is still 1.0 GB. Free memory is still 943.9 MB. There was no memory consumed. Max. memory is 11.5 GB. * Boogie Preprocessor took 78.41 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 130.0 MB). Free memory was 943.9 MB in the beginning and 1.1 GB in the end (delta: -182.3 MB). Peak memory consumption was 15.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 267.26 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: 24.1 MB). Peak memory consumption was 24.1 MB. Max. memory is 11.5 GB. * TraceAbstraction took 216.59 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: 13.2 MB). Peak memory consumption was 13.2 MB. Max. memory is 11.5 GB. * Witness Printer took 77.91 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. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 locations, 0 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=16occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 3 LocationsWithAnnotation, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 3 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 0.0s HoareSimplificationTimeInter, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...