./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability 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/nla-digbench-scaling/freire2_unwindbound100.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-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 ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash fb85afa890281cc6e7ce9c4cd2a8c0e570eb32dd ............................................................................................................................................................................................................................................. 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 01:15:31,989 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 01:15:31,991 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 01:15:32,014 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 01:15:32,014 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 01:15:32,015 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 01:15:32,017 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 01:15:32,018 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 01:15:32,020 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 01:15:32,021 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 01:15:32,022 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 01:15:32,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 01:15:32,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 01:15:32,024 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 01:15:32,025 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 01:15:32,026 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 01:15:32,027 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 01:15:32,028 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 01:15:32,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 01:15:32,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 01:15:32,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 01:15:32,035 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 01:15:32,036 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 01:15:32,037 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 01:15:32,039 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 01:15:32,040 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 01:15:32,040 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 01:15:32,048 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 01:15:32,049 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 01:15:32,049 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 01:15:32,050 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 01:15:32,050 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 01:15:32,051 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 01:15:32,052 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 01:15:32,053 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 01:15:32,053 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 01:15:32,054 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 01:15:32,054 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 01:15:32,054 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 01:15:32,055 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 01:15:32,056 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 01:15:32,056 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-20 01:15:32,078 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 01:15:32,078 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 01:15:32,079 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 01:15:32,080 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 01:15:32,080 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 01:15:32,080 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 01:15:32,080 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-20 01:15:32,080 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 01:15:32,081 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-20 01:15:32,082 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 01:15:32,082 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 01:15:32,082 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 01:15:32,082 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 01:15:32,082 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 01:15:32,083 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 01:15:32,084 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 01:15:32,084 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 01:15:32,084 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 01:15:32,085 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 01:15:32,085 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 01:15:32,085 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 01:15:32,085 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 01:15:32,085 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 01:15:32,086 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 01:15:32,086 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 ! call(reach_error())) ) 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 -> fb85afa890281cc6e7ce9c4cd2a8c0e570eb32dd [2020-10-20 01:15:32,305 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 01:15:32,326 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 01:15:32,330 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 01:15:32,332 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 01:15:32,336 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 01:15:32,337 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2020-10-20 01:15:32,418 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fcc01448/3dc66aacbd6c4eafb9df0c49d551fc27/FLAG8f7152104 [2020-10-20 01:15:33,016 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 01:15:33,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/nla-digbench-scaling/freire2_unwindbound100.c [2020-10-20 01:15:33,028 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fcc01448/3dc66aacbd6c4eafb9df0c49d551fc27/FLAG8f7152104 [2020-10-20 01:15:33,375 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0fcc01448/3dc66aacbd6c4eafb9df0c49d551fc27 [2020-10-20 01:15:33,379 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 01:15:33,389 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 01:15:33,392 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 01:15:33,392 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 01:15:33,396 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 01:15:33,397 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,401 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7089de6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33, skipping insertion in model container [2020-10-20 01:15:33,401 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,411 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 01:15:33,435 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 01:15:33,655 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:15:33,661 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 01:15:33,687 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 01:15:33,709 INFO L208 MainTranslator]: Completed translation [2020-10-20 01:15:33,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33 WrapperNode [2020-10-20 01:15:33,709 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 01:15:33,711 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 01:15:33,711 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 01:15:33,711 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 01:15:33,721 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,730 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,763 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 01:15:33,763 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 01:15:33,763 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 01:15:33,764 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 01:15:33,773 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,774 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,775 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,775 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,780 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,786 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,787 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (1/1) ... [2020-10-20 01:15:33,789 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 01:15:33,790 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 01:15:33,790 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 01:15:33,790 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 01:15:33,791 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (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 01:15:33,859 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 01:15:33,859 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 01:15:34,095 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 01:15:34,095 INFO L298 CfgBuilder]: Removed 29 assume(true) statements. [2020-10-20 01:15:34,097 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:34 BoogieIcfgContainer [2020-10-20 01:15:34,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 01:15:34,099 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 01:15:34,099 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 01:15:34,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 01:15:34,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 01:15:33" (1/3) ... [2020-10-20 01:15:34,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c800e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:15:34, skipping insertion in model container [2020-10-20 01:15:34,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 01:15:33" (2/3) ... [2020-10-20 01:15:34,104 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6c800e7d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 01:15:34, skipping insertion in model container [2020-10-20 01:15:34,104 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:34" (3/3) ... [2020-10-20 01:15:34,106 INFO L111 eAbstractionObserver]: Analyzing ICFG freire2_unwindbound100.c [2020-10-20 01:15:34,116 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 01:15:34,123 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 01:15:34,133 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 01:15:34,153 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 01:15:34,154 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 01:15:34,154 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 01:15:34,154 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 01:15:34,154 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 01:15:34,154 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 01:15:34,155 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 01:15:34,155 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 01:15:34,169 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states. [2020-10-20 01:15:34,176 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 01:15:34,178 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 20 states. [2020-10-20 01:15:34,252 INFO L277 CegarLoopResult]: At program point L48(lines 24 49) the Hoare annotation is: true [2020-10-20 01:15:34,252 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-20 01:15:34,252 INFO L274 CegarLoopResult]: For program point L32-1(lines 32 42) no Hoare annotation was computed. [2020-10-20 01:15:34,252 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 01:15:34,253 INFO L277 CegarLoopResult]: At program point L32-3(lines 32 42) the Hoare annotation is: true [2020-10-20 01:15:34,253 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 01:15:34,253 INFO L274 CegarLoopResult]: For program point L32-4(lines 32 42) no Hoare annotation was computed. [2020-10-20 01:15:34,253 INFO L274 CegarLoopResult]: For program point L16(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,259 INFO L277 CegarLoopResult]: At program point L16-1(lines 15 21) the Hoare annotation is: true [2020-10-20 01:15:34,264 INFO L274 CegarLoopResult]: For program point L16-2(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,265 INFO L277 CegarLoopResult]: At program point L16-3(lines 15 21) the Hoare annotation is: true [2020-10-20 01:15:34,265 INFO L274 CegarLoopResult]: For program point L16-4(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,265 INFO L277 CegarLoopResult]: At program point L16-5(lines 36 37) the Hoare annotation is: true [2020-10-20 01:15:34,265 INFO L274 CegarLoopResult]: For program point L16-6(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,266 INFO L277 CegarLoopResult]: At program point L16-7(lines 15 21) the Hoare annotation is: true [2020-10-20 01:15:34,266 INFO L274 CegarLoopResult]: For program point L16-8(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,266 INFO L277 CegarLoopResult]: At program point L16-9(lines 15 21) the Hoare annotation is: true [2020-10-20 01:15:34,266 INFO L274 CegarLoopResult]: For program point L16-10(lines 16 19) no Hoare annotation was computed. [2020-10-20 01:15:34,266 INFO L277 CegarLoopResult]: At program point L16-11(lines 15 21) the Hoare annotation is: true [2020-10-20 01:15:34,267 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 01:15:34,278 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 01:15:34 BoogieIcfgContainer [2020-10-20 01:15:34,278 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 01:15:34,279 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 01:15:34,280 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 01:15:34,281 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 01:15:34,281 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 01:15:34" (3/4) ... [2020-10-20 01:15:34,286 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 01:15:34,305 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-20 01:15:34,306 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 01:15:34,393 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 01:15:34,393 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 01:15:34,397 INFO L168 Benchmark]: Toolchain (without parser) took 1013.59 ms. Allocated memory was 41.9 MB in the beginning and 44.6 MB in the end (delta: 2.6 MB). Free memory was 20.3 MB in the beginning and 22.0 MB in the end (delta: -1.7 MB). Peak memory consumption was 930.8 kB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,398 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 9.3 MB in the beginning and 9.2 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,399 INFO L168 Benchmark]: CACSL2BoogieTranslator took 317.64 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.4 MB in the beginning and 19.1 MB in the end (delta: 388.2 kB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,400 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.14 ms. Allocated memory is still 42.5 MB. Free memory was 18.9 MB in the beginning and 17.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,401 INFO L168 Benchmark]: Boogie Preprocessor took 26.13 ms. Allocated memory is still 42.5 MB. Free memory was 17.2 MB in the beginning and 15.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,403 INFO L168 Benchmark]: RCFGBuilder took 307.76 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 19.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,404 INFO L168 Benchmark]: TraceAbstraction took 179.87 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 18.9 MB in the beginning and 25.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,405 INFO L168 Benchmark]: Witness Printer took 114.56 ms. Allocated memory is still 44.6 MB. Free memory was 25.4 MB in the beginning and 22.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 14.3 GB. [2020-10-20 01:15:34,413 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 31.5 MB. Free memory was 9.3 MB in the beginning and 9.2 MB in the end (delta: 44.0 kB). Peak memory consumption was 44.0 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 317.64 ms. Allocated memory was 41.9 MB in the beginning and 42.5 MB in the end (delta: 524.3 kB). Free memory was 19.4 MB in the beginning and 19.1 MB in the end (delta: 388.2 kB). Peak memory consumption was 9.7 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 52.14 ms. Allocated memory is still 42.5 MB. Free memory was 18.9 MB in the beginning and 17.2 MB in the end (delta: 1.7 MB). Peak memory consumption was 1.7 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 26.13 ms. Allocated memory is still 42.5 MB. Free memory was 17.2 MB in the beginning and 15.9 MB in the end (delta: 1.3 MB). Peak memory consumption was 1.3 MB. Max. memory is 14.3 GB. * RCFGBuilder took 307.76 ms. Allocated memory was 42.5 MB in the beginning and 44.0 MB in the end (delta: 1.6 MB). Free memory was 15.7 MB in the beginning and 19.5 MB in the end (delta: -3.8 MB). Peak memory consumption was 5.8 MB. Max. memory is 14.3 GB. * TraceAbstraction took 179.87 ms. Allocated memory was 44.0 MB in the beginning and 44.6 MB in the end (delta: 524.3 kB). Free memory was 18.9 MB in the beginning and 25.4 MB in the end (delta: -6.5 MB). Peak memory consumption was 9.1 MB. Max. memory is 14.3 GB. * Witness Printer took 114.56 ms. Allocated memory is still 44.6 MB. Free memory was 25.4 MB in the beginning and 22.0 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 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: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 36]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 32]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 15]: Loop Invariant Derived loop invariant: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 20 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=20occurred 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, 8 LocationsWithAnnotation, 8 PreInvPairs, 8 NumberOfFragments, 8 HoareAnnotationTreeSize, 8 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 8 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...