./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 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/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 0.2.0-5485861 [2020-10-26 04:02:15,576 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:02:15,579 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:02:15,614 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:02:15,615 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:02:15,617 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:02:15,619 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:02:15,621 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:02:15,623 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:02:15,625 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:02:15,626 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:02:15,628 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:02:15,628 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:02:15,630 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:02:15,631 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:02:15,633 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:02:15,634 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:02:15,636 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:02:15,638 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:02:15,640 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:02:15,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:02:15,644 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:02:15,646 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:02:15,648 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:02:15,654 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:02:15,657 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:02:15,657 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:02:15,668 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:02:15,668 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:02:15,670 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:02:15,670 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:02:15,671 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:02:15,672 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:02:15,673 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:02:15,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:02:15,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:02:15,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:02:15,677 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:02:15,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:02:15,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:02:15,679 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:02:15,680 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-26 04:02:15,709 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:02:15,709 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:02:15,711 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:02:15,715 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:02:15,715 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:02:15,716 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:02:15,716 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:02:15,716 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:02:15,717 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:02:15,717 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:02:15,717 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:02:15,718 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:02:15,718 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:02:15,719 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:02:15,720 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:02:15,720 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:02:15,721 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:02:15,721 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:02:15,721 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:02:15,721 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:02:15,722 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:02:15,722 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:02:15,722 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:02:15,723 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:02:15,723 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:02:15,723 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:02:15,724 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:02:15,724 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:02:15,725 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a03b979f45aa8ba48949293cad74f586aed4b0e9 [2020-10-26 04:02:16,224 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:02:16,292 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:02:16,296 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:02:16,298 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:02:16,298 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:02:16,301 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2020-10-26 04:02:16,402 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d79d0bbb/6370f6e574574fb19f55d54315c523ff/FLAGb7690507f [2020-10-26 04:02:16,996 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:02:16,996 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted/Cairo_step2-3.c [2020-10-26 04:02:17,003 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d79d0bbb/6370f6e574574fb19f55d54315c523ff/FLAGb7690507f [2020-10-26 04:02:17,374 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1d79d0bbb/6370f6e574574fb19f55d54315c523ff [2020-10-26 04:02:17,377 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:02:17,384 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:02:17,391 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:17,391 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:02:17,395 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:02:17,396 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,405 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4aa4eb28 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17, skipping insertion in model container [2020-10-26 04:02:17,406 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,415 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:02:17,431 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:02:17,586 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:17,591 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:02:17,608 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:02:17,621 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:02:17,621 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17 WrapperNode [2020-10-26 04:02:17,622 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:02:17,623 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:17,623 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:02:17,623 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:02:17,631 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,637 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:02:17,665 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:02:17,666 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:02:17,666 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:02:17,676 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,678 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,678 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,680 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,686 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,687 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (1/1) ... [2020-10-26 04:02:17,689 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:02:17,692 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:02:17,692 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:02:17,692 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:02:17,694 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (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 04:02:17,789 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:02:17,790 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:02:17,960 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:02:17,960 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-26 04:02:17,962 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:17 BoogieIcfgContainer [2020-10-26 04:02:17,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:02:17,964 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:02:17,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:02:17,968 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:02:17,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:02:17" (1/3) ... [2020-10-26 04:02:17,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:17, skipping insertion in model container [2020-10-26 04:02:17,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:02:17" (2/3) ... [2020-10-26 04:02:17,970 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7477534 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:02:17, skipping insertion in model container [2020-10-26 04:02:17,970 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:17" (3/3) ... [2020-10-26 04:02:17,972 INFO L111 eAbstractionObserver]: Analyzing ICFG Cairo_step2-3.c [2020-10-26 04:02:17,986 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:02:17,992 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 04:02:18,008 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 04:02:18,049 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:02:18,049 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:02:18,049 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:02:18,049 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:02:18,050 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:02:18,050 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:02:18,050 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:02:18,050 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:02:18,071 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-10-26 04:02:18,077 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:02:18,081 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-26 04:02:18,156 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:02:18,156 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:02:18,156 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:02:18,157 INFO L277 CegarLoopResult]: At program point L20(lines 11 21) the Hoare annotation is: true [2020-10-26 04:02:18,157 INFO L274 CegarLoopResult]: For program point L15(lines 15 19) no Hoare annotation was computed. [2020-10-26 04:02:18,157 INFO L277 CegarLoopResult]: At program point L16-2(lines 16 18) the Hoare annotation is: true [2020-10-26 04:02:18,157 INFO L274 CegarLoopResult]: For program point L15-1(lines 15 19) no Hoare annotation was computed. [2020-10-26 04:02:18,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:02:18 BoogieIcfgContainer [2020-10-26 04:02:18,169 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:02:18,170 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:02:18,170 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:02:18,170 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:02:18,171 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:02:17" (3/4) ... [2020-10-26 04:02:18,175 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:02:18,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-26 04:02:18,188 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-26 04:02:18,232 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:02:18,232 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:02:18,235 INFO L168 Benchmark]: Toolchain (without parser) took 854.78 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 28.4 MB in the beginning and 34.2 MB in the end (delta: -5.9 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:18,236 INFO L168 Benchmark]: CDTParser took 0.53 ms. Allocated memory is still 44.0 MB. Free memory is still 30.9 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:18,237 INFO L168 Benchmark]: CACSL2BoogieTranslator took 231.29 ms. Allocated memory is still 44.0 MB. Free memory was 27.8 MB in the beginning and 19.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:18,238 INFO L168 Benchmark]: Boogie Procedure Inliner took 40.90 ms. Allocated memory is still 44.0 MB. Free memory was 19.4 MB in the beginning and 29.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:18,239 INFO L168 Benchmark]: Boogie Preprocessor took 24.63 ms. Allocated memory is still 44.0 MB. Free memory was 29.9 MB in the beginning and 29.1 MB in the end (delta: 831.7 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:18,240 INFO L168 Benchmark]: RCFGBuilder took 270.54 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 21.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:18,242 INFO L168 Benchmark]: TraceAbstraction took 205.35 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.3 MB in the beginning and 36.6 MB in the end (delta: -15.3 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:02:18,243 INFO L168 Benchmark]: Witness Printer took 62.02 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 34.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:02:18,249 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.53 ms. Allocated memory is still 44.0 MB. Free memory is still 30.9 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 231.29 ms. Allocated memory is still 44.0 MB. Free memory was 27.8 MB in the beginning and 19.4 MB in the end (delta: 8.4 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 40.90 ms. Allocated memory is still 44.0 MB. Free memory was 19.4 MB in the beginning and 29.9 MB in the end (delta: -10.6 MB). Peak memory consumption was 2.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 24.63 ms. Allocated memory is still 44.0 MB. Free memory was 29.9 MB in the beginning and 29.1 MB in the end (delta: 831.7 kB). There was no memory consumed. Max. memory is 16.1 GB. * RCFGBuilder took 270.54 ms. Allocated memory is still 44.0 MB. Free memory was 29.1 MB in the beginning and 21.7 MB in the end (delta: 7.4 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * TraceAbstraction took 205.35 ms. Allocated memory was 44.0 MB in the beginning and 54.5 MB in the end (delta: 10.5 MB). Free memory was 21.3 MB in the beginning and 36.6 MB in the end (delta: -15.3 MB). There was no memory consumed. Max. memory is 16.1 GB. * Witness Printer took 62.02 ms. Allocated memory is still 54.5 MB. Free memory was 36.3 MB in the beginning and 34.2 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 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: 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...