./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d 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_1.3.100.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/termination-crafted/Cairo_step2-3.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 a03b979f45aa8ba48949293cad74f586aed4b0e9 ................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:21:55,916 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:21:55,919 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:21:55,942 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:21:55,943 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:21:55,944 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:21:55,945 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:21:55,947 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:21:55,949 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:21:55,950 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:21:55,951 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:21:55,952 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:21:55,953 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:21:55,954 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:21:55,955 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:21:55,956 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:21:55,957 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:21:55,958 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:21:55,960 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:21:55,962 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:21:55,964 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:21:55,965 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:21:55,966 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:21:55,967 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:21:55,970 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:21:55,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:21:55,971 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:21:55,972 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:21:55,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:21:55,973 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:21:55,974 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:21:55,974 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:21:55,975 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:21:55,976 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:21:55,977 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:21:55,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:21:55,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:21:55,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:21:55,979 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:21:55,980 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:21:55,980 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:21:55,981 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:21:56,032 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:21:56,034 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:21:56,035 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:21:56,037 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:21:56,039 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:21:56,039 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:21:56,040 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:21:56,040 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:21:56,040 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:21:56,040 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:21:56,041 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:21:56,042 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:21:56,042 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:21:56,043 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:21:56,043 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:21:56,043 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:21:56,044 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:21:56,044 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:21:56,044 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:21:56,044 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:21:56,045 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:21:56,045 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:21:56,045 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:21:56,046 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:21:56,046 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:21:56,046 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:21:56,047 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:21:56,047 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:21:56,048 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 -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a03b979f45aa8ba48949293cad74f586aed4b0e9 [2020-10-20 06:21:56,280 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:21:56,293 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:21:56,297 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:21:56,299 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:21:56,299 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:21:56,300 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2020-10-20 06:21:56,381 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19125d774/6500e17f67524267aa3c0ae7db96bb5e/FLAG5d49d7bed [2020-10-20 06:21:56,920 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:21:56,921 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2020-10-20 06:21:56,928 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19125d774/6500e17f67524267aa3c0ae7db96bb5e/FLAG5d49d7bed [2020-10-20 06:21:57,211 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/19125d774/6500e17f67524267aa3c0ae7db96bb5e [2020-10-20 06:21:57,215 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:21:57,221 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:21:57,223 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:21:57,223 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:21:57,227 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:21:57,228 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,231 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@302401ec and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57, skipping insertion in model container [2020-10-20 06:21:57,231 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,239 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:21:57,259 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:21:57,429 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:21:57,434 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:21:57,449 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:21:57,464 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:21:57,464 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57 WrapperNode [2020-10-20 06:21:57,465 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:21:57,466 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:21:57,466 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:21:57,466 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:21:57,485 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,491 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,508 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:21:57,509 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:21:57,509 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:21:57,509 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:21:57,518 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,519 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,519 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,519 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,521 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (1/1) ... [2020-10-20 06:21:57,528 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:21:57,529 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:21:57,529 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:21:57,529 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:21:57,530 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (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 [2020-10-20 06:21:57,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:21:57,590 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:21:57,735 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:21:57,735 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:21:57,739 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:57 BoogieIcfgContainer [2020-10-20 06:21:57,739 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:21:57,740 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:21:57,740 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:21:57,744 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:21:57,744 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:21:57" (1/3) ... [2020-10-20 06:21:57,745 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302c51b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:21:57, skipping insertion in model container [2020-10-20 06:21:57,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:21:57" (2/3) ... [2020-10-20 06:21:57,746 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@302c51b1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:21:57, skipping insertion in model container [2020-10-20 06:21:57,746 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:57" (3/3) ... [2020-10-20 06:21:57,748 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo_step2-3.c [2020-10-20 06:21:57,760 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:21:57,767 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 06:21:57,781 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 06:21:57,808 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:21:57,808 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:21:57,809 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:21:57,809 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:21:57,810 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:21:57,810 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:21:57,810 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:21:57,811 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:21:57,822 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-10-20 06:21:57,827 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:21:57,838 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-20 06:21:57,886 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:21:57,886 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:21:57,886 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:21:57,886 INFO L277 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: true [2020-10-20 06:21:57,886 INFO L274 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-10-20 06:21:57,886 INFO L277 CegarLoopResult]: At program point L16-2(lines 16 18) the Hoare annotation is: true [2020-10-20 06:21:57,887 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2020-10-20 06:21:57,894 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:21:57 BoogieIcfgContainer [2020-10-20 06:21:57,894 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:21:57,895 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:21:57,895 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:21:57,895 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:21:57,896 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:21:57" (3/4) ... [2020-10-20 06:21:57,900 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:21:57,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:21:57,911 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:21:57,952 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:21:57,952 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:21:57,955 INFO L168 Benchmark]: Toolchain (without parser) took 737.57 ms. Allocated memory was 42.5 MB in the beginning and 45.1 MB in the end (delta: 2.6 MB). Free memory was 23.6 MB in the beginning and 20.7 MB in the end (delta: 2.9 MB). Peak memory consumption was 5.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,956 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 11.2 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,957 INFO L168 Benchmark]: CACSL2BoogieTranslator took 242.48 ms. Allocated memory is still 42.5 MB. Free memory was 22.7 MB in the beginning and 13.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,958 INFO L168 Benchmark]: Boogie Procedure Inliner took 42.76 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 13.3 MB in the beginning and 24.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,959 INFO L168 Benchmark]: Boogie Preprocessor took 19.58 ms. Allocated memory is still 43.0 MB. Free memory was 24.2 MB in the beginning and 23.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,960 INFO L168 Benchmark]: RCFGBuilder took 210.50 ms. Allocated memory is still 43.0 MB. Free memory was 23.0 MB in the beginning and 14.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,961 INFO L168 Benchmark]: TraceAbstraction took 154.45 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 14.3 MB in the beginning and 23.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,961 INFO L168 Benchmark]: Witness Printer took 57.35 ms. Allocated memory is still 45.1 MB. Free memory was 23.4 MB in the beginning and 20.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:21:57,967 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 32.0 MB. Free memory was 11.2 MB in the beginning and 11.2 MB in the end (delta: 47.4 kB). Peak memory consumption was 47.4 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 242.48 ms. Allocated memory is still 42.5 MB. Free memory was 22.7 MB in the beginning and 13.4 MB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 42.76 ms. Allocated memory was 42.5 MB in the beginning and 43.0 MB in the end (delta: 524.3 kB). Free memory was 13.3 MB in the beginning and 24.2 MB in the end (delta: -10.9 MB). Peak memory consumption was 4.8 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.58 ms. Allocated memory is still 43.0 MB. Free memory was 24.2 MB in the beginning and 23.1 MB in the end (delta: 1.1 MB). Peak memory consumption was 1.1 MB. Max. memory is 14.3 GB. * RCFGBuilder took 210.50 ms. Allocated memory is still 43.0 MB. Free memory was 23.0 MB in the beginning and 14.6 MB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 14.3 GB. * TraceAbstraction took 154.45 ms. Allocated memory was 43.0 MB in the beginning and 45.1 MB in the end (delta: 2.1 MB). Free memory was 14.3 MB in the beginning and 23.4 MB in the end (delta: -9.1 MB). Peak memory consumption was 6.0 MB. Max. memory is 14.3 GB. * Witness Printer took 57.35 ms. Allocated memory is still 45.1 MB. Free memory was 23.4 MB in the beginning and 20.7 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 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: 16]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 11]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 7 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=7occurred 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...