./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/WhileFalse.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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/termination-crafted/WhileFalse.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-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 64bit --witnessprinter.graph.data.programhash 9f15d52494f2bb20316f0c01d603c20e3274fba8 ....................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.2.0-5485861 [2020-10-26 04:03:10,343 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:03:10,345 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:03:10,381 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:03:10,382 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:03:10,384 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:03:10,386 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:03:10,388 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:03:10,390 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:03:10,392 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:03:10,393 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:03:10,395 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:03:10,395 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:03:10,397 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:03:10,398 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:03:10,399 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:03:10,401 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:03:10,402 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:03:10,404 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:03:10,406 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:03:10,408 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:03:10,413 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:03:10,414 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:03:10,415 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:03:10,421 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:03:10,421 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:03:10,422 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:03:10,424 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:03:10,425 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:03:10,429 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:03:10,429 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:03:10,431 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:03:10,433 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:03:10,437 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:03:10,440 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:03:10,447 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:03:10,448 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:03:10,448 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:03:10,449 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:03:10,450 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:03:10,452 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:03:10,455 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:03:10,503 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:03:10,503 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:03:10,507 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:03:10,507 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:03:10,507 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:03:10,508 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:03:10,508 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:03:10,508 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:03:10,509 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:03:10,509 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:03:10,510 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:03:10,510 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:03:10,511 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:03:10,511 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:03:10,511 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:03:10,511 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:03:10,512 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:03:10,512 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:03:10,512 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:03:10,513 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:03:10,513 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:03:10,513 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:03:10,513 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:03:10,514 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:03:10,514 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:03:10,514 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:03:10,514 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:03:10,515 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:03:10,515 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 9f15d52494f2bb20316f0c01d603c20e3274fba8 [2020-10-26 04:03:10,907 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:03:10,951 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:03:10,954 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:03:10,955 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:03:10,956 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:03:10,961 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-10-26 04:03:11,046 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ece33a7/bcb8b8dbf51746b88f2372a23955139d/FLAGa48f1ae05 [2020-10-26 04:03:11,748 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:03:11,749 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/WhileFalse.c [2020-10-26 04:03:11,756 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ece33a7/bcb8b8dbf51746b88f2372a23955139d/FLAGa48f1ae05 [2020-10-26 04:03:12,132 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/79ece33a7/bcb8b8dbf51746b88f2372a23955139d [2020-10-26 04:03:12,135 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:03:12,142 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:03:12,144 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:03:12,145 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:03:12,149 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:03:12,150 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,158 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3d7f64a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12, skipping insertion in model container [2020-10-26 04:03:12,158 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,168 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:03:12,183 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:03:12,364 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:03:12,369 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:03:12,382 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:03:12,397 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:03:12,397 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12 WrapperNode [2020-10-26 04:03:12,398 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:03:12,399 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:03:12,399 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:03:12,399 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:03:12,408 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,414 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,432 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:03:12,433 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:03:12,433 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:03:12,433 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:03:12,443 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,444 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,451 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (1/1) ... [2020-10-26 04:03:12,453 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:03:12,454 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:03:12,454 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:03:12,454 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:03:12,455 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (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 [2020-10-26 04:03:12,537 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:03:12,538 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:03:12,664 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:03:12,665 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:03:12,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:12 BoogieIcfgContainer [2020-10-26 04:03:12,666 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:03:12,668 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:03:12,669 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:03:12,672 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:03:12,672 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:03:12" (1/3) ... [2020-10-26 04:03:12,673 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfa8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:03:12, skipping insertion in model container [2020-10-26 04:03:12,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:03:12" (2/3) ... [2020-10-26 04:03:12,674 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75dfa8d0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:03:12, skipping insertion in model container [2020-10-26 04:03:12,674 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:12" (3/3) ... [2020-10-26 04:03:12,676 INFO L111 eAbstractionObserver]: Analyzing ICFG WhileFalse.c [2020-10-26 04:03:12,689 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:03:12,694 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 04:03:12,708 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 04:03:12,735 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:03:12,735 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:03:12,735 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:03:12,735 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:03:12,735 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:03:12,736 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:03:12,736 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:03:12,736 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:03:12,749 INFO L276 IsEmpty]: Start isEmpty. Operand 6 states. [2020-10-26 04:03:12,754 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:03:12,757 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 6 states. [2020-10-26 04:03:12,828 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:03:12,828 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:03:12,828 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:03:12,829 INFO L277 CegarLoopResult]: At program point L16(lines 12 17) the Hoare annotation is: true [2020-10-26 04:03:12,829 INFO L277 CegarLoopResult]: At program point L14-2(lines 14 15) the Hoare annotation is: true [2020-10-26 04:03:12,829 INFO L274 CegarLoopResult]: For program point L14-3(lines 14 15) no Hoare annotation was computed. [2020-10-26 04:03:12,838 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:03:12 BoogieIcfgContainer [2020-10-26 04:03:12,838 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:03:12,839 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:03:12,839 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:03:12,839 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:03:12,840 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:03:12" (3/4) ... [2020-10-26 04:03:12,844 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:03:12,855 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:03:12,856 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:03:12,897 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:03:12,897 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:03:12,900 INFO L168 Benchmark]: Toolchain (without parser) took 761.83 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 24.4 MB in the beginning and 40.7 MB in the end (delta: -16.3 MB). Peak memory consumption was 6.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,901 INFO L168 Benchmark]: CDTParser took 0.62 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.3 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:03:12,902 INFO L168 Benchmark]: CACSL2BoogieTranslator took 253.91 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 26.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,903 INFO L168 Benchmark]: Boogie Procedure Inliner took 33.26 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 25.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,904 INFO L168 Benchmark]: Boogie Preprocessor took 20.29 ms. Allocated memory is still 46.1 MB. Free memory was 25.6 MB in the beginning and 24.7 MB in the end (delta: 902.3 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:03:12,905 INFO L168 Benchmark]: RCFGBuilder took 212.70 ms. Allocated memory is still 46.1 MB. Free memory was 24.7 MB in the beginning and 29.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,906 INFO L168 Benchmark]: TraceAbstraction took 169.85 ms. Allocated memory is still 46.1 MB. Free memory was 29.4 MB in the beginning and 22.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,907 INFO L168 Benchmark]: Witness Printer took 58.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 41.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:03:12,912 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 ms. Allocated memory is still 37.7 MB. Free memory was 20.3 MB in the beginning and 20.3 MB in the end (delta: 56.1 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 253.91 ms. Allocated memory is still 46.1 MB. Free memory was 23.8 MB in the beginning and 26.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 5.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 33.26 ms. Allocated memory is still 46.1 MB. Free memory was 26.8 MB in the beginning and 25.6 MB in the end (delta: 1.2 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 20.29 ms. Allocated memory is still 46.1 MB. Free memory was 25.6 MB in the beginning and 24.7 MB in the end (delta: 902.3 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 212.70 ms. Allocated memory is still 46.1 MB. Free memory was 24.7 MB in the beginning and 29.9 MB in the end (delta: -5.2 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. * TraceAbstraction took 169.85 ms. Allocated memory is still 46.1 MB. Free memory was 29.4 MB in the beginning and 22.2 MB in the end (delta: 7.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Witness Printer took 58.48 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 22.2 MB in the beginning and 41.0 MB in the end (delta: -18.8 MB). Peak memory consumption was 2.3 MB. Max. memory is 16.1 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. - InvariantResult [Line: 12]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 14]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 6 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=6occurred 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, 2 LocationsWithAnnotation, 2 PreInvPairs, 2 NumberOfFragments, 2 HoareAnnotationTreeSize, 2 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 2 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...