./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/bitvector/parity.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 30f4e4ab 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/bitvector/parity.i -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 1de4b71c160b63eb5d44a8d7bb23d6faff671aec ............................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 02:54:26,043 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 02:54:26,046 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 02:54:26,058 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 02:54:26,059 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 02:54:26,060 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 02:54:26,062 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 02:54:26,064 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 02:54:26,066 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 02:54:26,067 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 02:54:26,068 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 02:54:26,069 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 02:54:26,070 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 02:54:26,071 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 02:54:26,072 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 02:54:26,073 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 02:54:26,074 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 02:54:26,075 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 02:54:26,077 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 02:54:26,079 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 02:54:26,081 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 02:54:26,082 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 02:54:26,084 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 02:54:26,084 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 02:54:26,087 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 02:54:26,087 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 02:54:26,087 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 02:54:26,088 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 02:54:26,089 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 02:54:26,090 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 02:54:26,091 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 02:54:26,091 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 02:54:26,093 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 02:54:26,094 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 02:54:26,095 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 02:54:26,095 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 02:54:26,096 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 02:54:26,096 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 02:54:26,097 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 02:54:26,098 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 02:54:26,099 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 02:54:26,101 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2019-11-28 02:54:26,122 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 02:54:26,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 02:54:26,123 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 02:54:26,123 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 02:54:26,123 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 02:54:26,124 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 02:54:26,124 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 02:54:26,124 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 02:54:26,124 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 02:54:26,125 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 02:54:26,125 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 02:54:26,125 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-11-28 02:54:26,125 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-11-28 02:54:26,125 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-11-28 02:54:26,126 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2019-11-28 02:54:26,126 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 02:54:26,126 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 02:54:26,126 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 02:54:26,126 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-11-28 02:54:26,127 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 02:54:26,127 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 02:54:26,127 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-11-28 02:54:26,127 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-11-28 02:54:26,128 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:54:26,128 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 02:54:26,128 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-11-28 02:54:26,128 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-11-28 02:54:26,128 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 02:54:26,129 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-11-28 02:54:26,129 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-11-28 02:54:26,129 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 -> 1de4b71c160b63eb5d44a8d7bb23d6faff671aec [2019-11-28 02:54:26,427 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 02:54:26,440 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 02:54:26,444 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 02:54:26,445 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 02:54:26,446 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 02:54:26,447 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/bitvector/parity.i [2019-11-28 02:54:26,510 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2de893b/291a82fae6ea40eea11343a4837efb7b/FLAGf11d8f591 [2019-11-28 02:54:26,940 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 02:54:26,941 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/bitvector/parity.i [2019-11-28 02:54:26,948 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2de893b/291a82fae6ea40eea11343a4837efb7b/FLAGf11d8f591 [2019-11-28 02:54:27,355 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/bd2de893b/291a82fae6ea40eea11343a4837efb7b [2019-11-28 02:54:27,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 02:54:27,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 02:54:27,362 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 02:54:27,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 02:54:27,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 02:54:27,367 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,369 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3463e911 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27, skipping insertion in model container [2019-11-28 02:54:27,370 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,379 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 02:54:27,400 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 02:54:27,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:54:27,663 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 02:54:27,695 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 02:54:27,714 INFO L208 MainTranslator]: Completed translation [2019-11-28 02:54:27,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27 WrapperNode [2019-11-28 02:54:27,716 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 02:54:27,717 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 02:54:27,717 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 02:54:27,717 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 02:54:27,728 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,798 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,822 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 02:54:27,822 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 02:54:27,823 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 02:54:27,823 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 02:54:27,833 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,834 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,835 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,835 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,840 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,848 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,854 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... [2019-11-28 02:54:27,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 02:54:27,861 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 02:54:27,861 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 02:54:27,861 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 02:54:27,862 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-11-28 02:54:27,937 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 02:54:27,938 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 02:54:28,163 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 02:54:28,163 INFO L297 CfgBuilder]: Removed 7 assume(true) statements. [2019-11-28 02:54:28,165 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:28 BoogieIcfgContainer [2019-11-28 02:54:28,165 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 02:54:28,166 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-11-28 02:54:28,166 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-11-28 02:54:28,169 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-11-28 02:54:28,169 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.11 02:54:27" (1/3) ... [2019-11-28 02:54:28,170 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b322ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:28, skipping insertion in model container [2019-11-28 02:54:28,170 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 02:54:27" (2/3) ... [2019-11-28 02:54:28,171 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@17b322ef and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.11 02:54:28, skipping insertion in model container [2019-11-28 02:54:28,171 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:28" (3/3) ... [2019-11-28 02:54:28,172 INFO L109 eAbstractionObserver]: Analyzing ICFG parity.i [2019-11-28 02:54:28,182 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-11-28 02:54:28,189 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2019-11-28 02:54:28,201 INFO L249 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2019-11-28 02:54:28,227 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-11-28 02:54:28,228 INFO L374 AbstractCegarLoop]: Hoare is true [2019-11-28 02:54:28,228 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-11-28 02:54:28,228 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 02:54:28,228 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 02:54:28,228 INFO L378 AbstractCegarLoop]: Difference is false [2019-11-28 02:54:28,228 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 02:54:28,229 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-11-28 02:54:28,243 INFO L276 IsEmpty]: Start isEmpty. Operand 13 states. [2019-11-28 02:54:28,249 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-11-28 02:54:28,253 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 13 states. [2019-11-28 02:54:28,301 INFO L246 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2019-11-28 02:54:28,301 INFO L246 CegarLoopResult]: For program point L31(lines 31 35) no Hoare annotation was computed. [2019-11-28 02:54:28,302 INFO L246 CegarLoopResult]: For program point L31-2(lines 31 35) no Hoare annotation was computed. [2019-11-28 02:54:28,302 INFO L246 CegarLoopResult]: For program point L5(lines 5 7) no Hoare annotation was computed. [2019-11-28 02:54:28,302 INFO L249 CegarLoopResult]: At program point L5-2(lines 4 9) the Hoare annotation is: true [2019-11-28 02:54:28,302 INFO L246 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2019-11-28 02:54:28,302 INFO L246 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2019-11-28 02:54:28,303 INFO L249 CegarLoopResult]: At program point L30-2(lines 30 37) the Hoare annotation is: true [2019-11-28 02:54:28,303 INFO L246 CegarLoopResult]: For program point L30-3(lines 30 37) no Hoare annotation was computed. [2019-11-28 02:54:28,311 INFO L249 CegarLoopResult]: At program point L49(lines 21 50) the Hoare annotation is: true [2019-11-28 02:54:28,311 INFO L246 CegarLoopResult]: For program point L43(lines 43 47) no Hoare annotation was computed. [2019-11-28 02:54:28,311 INFO L246 CegarLoopResult]: For program point L43-2(lines 43 47) no Hoare annotation was computed. [2019-11-28 02:54:28,311 INFO L246 CegarLoopResult]: For program point L6(line 6) no Hoare annotation was computed. [2019-11-28 02:54:28,322 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.11 02:54:28 BoogieIcfgContainer [2019-11-28 02:54:28,323 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-11-28 02:54:28,323 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 02:54:28,323 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 02:54:28,323 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 02:54:28,324 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 02:54:28" (3/4) ... [2019-11-28 02:54:28,327 INFO L137 WitnessPrinter]: Generating witness for correct program [2019-11-28 02:54:28,338 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2019-11-28 02:54:28,339 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2019-11-28 02:54:28,386 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 02:54:28,386 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 02:54:28,389 INFO L168 Benchmark]: Toolchain (without parser) took 1028.03 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -146.7 MB). There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:54:28,390 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:54:28,391 INFO L168 Benchmark]: CACSL2BoogieTranslator took 354.52 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 MB in the end (delta: 10.7 MB). Peak memory consumption was 10.7 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:28,392 INFO L168 Benchmark]: Boogie Procedure Inliner took 105.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:28,393 INFO L168 Benchmark]: Boogie Preprocessor took 37.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:28,393 INFO L168 Benchmark]: RCFGBuilder took 304.27 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. [2019-11-28 02:54:28,394 INFO L168 Benchmark]: TraceAbstraction took 156.88 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. [2019-11-28 02:54:28,395 INFO L168 Benchmark]: Witness Printer took 63.56 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 02:54:28,399 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 354.52 ms. Allocated memory is still 1.0 GB. Free memory was 961.7 MB in the beginning and 951.0 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 105.31 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 951.0 MB in the beginning and 1.1 GB in the end (delta: -190.8 MB). Peak memory consumption was 9.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 37.79 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 304.27 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: 13.5 MB). Peak memory consumption was 13.5 MB. Max. memory is 11.5 GB. * TraceAbstraction took 156.88 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 63.56 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. - InvariantResult [Line: 21]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 30]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 4]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 13 locations, 0 error locations. Result: SAFE, OverallTime: 0.0s, OverallIterations: 0, TraceHistogramMax: 0, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=13occurred 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, 3 PreInvPairs, 3 NumberOfFragments, 3 HoareAnnotationTreeSize, 3 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...