./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c --full-output --architecture 64bit -------------------------------------------------------------------------------- Checking for overflows Using default analysis Version 9a8b2e8d Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.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 75dd2ce3f6219a56f38a72471186bda1e7610d5c ................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-9a8b2e8 [2020-10-20 06:24:15,213 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-20 06:24:15,216 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-20 06:24:15,239 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-20 06:24:15,240 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-20 06:24:15,241 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-20 06:24:15,242 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-20 06:24:15,244 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-20 06:24:15,246 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-20 06:24:15,247 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-20 06:24:15,248 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-20 06:24:15,249 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-20 06:24:15,250 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-20 06:24:15,251 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-20 06:24:15,252 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-20 06:24:15,253 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-20 06:24:15,254 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-20 06:24:15,256 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-20 06:24:15,257 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-20 06:24:15,260 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-20 06:24:15,261 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-20 06:24:15,263 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-20 06:24:15,274 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-20 06:24:15,276 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-20 06:24:15,278 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-20 06:24:15,282 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-20 06:24:15,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-20 06:24:15,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-20 06:24:15,285 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-20 06:24:15,286 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-20 06:24:15,287 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-20 06:24:15,287 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-20 06:24:15,289 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-20 06:24:15,291 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-20 06:24:15,292 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-20 06:24:15,293 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-20 06:24:15,294 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-20 06:24:15,295 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-20 06:24:15,295 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-20 06:24:15,296 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-20 06:24:15,297 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-20 06:24:15,298 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-64bit-Automizer_Default.epf [2020-10-20 06:24:15,346 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-20 06:24:15,347 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-20 06:24:15,348 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-20 06:24:15,349 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-20 06:24:15,349 INFO L138 SettingsManager]: * Use SBE=true [2020-10-20 06:24:15,349 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-20 06:24:15,349 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-20 06:24:15,350 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-20 06:24:15,350 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-20 06:24:15,350 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-20 06:24:15,351 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-20 06:24:15,351 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-20 06:24:15,352 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-20 06:24:15,352 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-20 06:24:15,352 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-20 06:24:15,353 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-20 06:24:15,353 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-20 06:24:15,353 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-20 06:24:15,353 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-20 06:24:15,354 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-20 06:24:15,354 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:24:15,354 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-20 06:24:15,354 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-20 06:24:15,355 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-20 06:24:15,355 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-20 06:24:15,355 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-20 06:24:15,355 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-20 06:24:15,356 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-20 06:24:15,356 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 75dd2ce3f6219a56f38a72471186bda1e7610d5c [2020-10-20 06:24:15,612 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-20 06:24:15,630 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-20 06:24:15,636 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-20 06:24:15,637 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-20 06:24:15,639 INFO L275 PluginConnector]: CDTParser initialized [2020-10-20 06:24:15,640 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-20 06:24:15,720 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647febb15/26708d18e612494eb964a29b29517dff/FLAG47e4ff363 [2020-10-20 06:24:16,195 INFO L306 CDTParser]: Found 1 translation units. [2020-10-20 06:24:16,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-crafted-lit/ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-20 06:24:16,201 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647febb15/26708d18e612494eb964a29b29517dff/FLAG47e4ff363 [2020-10-20 06:24:16,619 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/647febb15/26708d18e612494eb964a29b29517dff [2020-10-20 06:24:16,623 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-20 06:24:16,633 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-20 06:24:16,636 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-20 06:24:16,637 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-20 06:24:16,640 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-20 06:24:16,641 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,645 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@577cf467 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16, skipping insertion in model container [2020-10-20 06:24:16,646 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,654 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-20 06:24:16,674 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-20 06:24:16,885 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:24:16,890 INFO L203 MainTranslator]: Completed pre-run [2020-10-20 06:24:16,905 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-20 06:24:16,919 INFO L208 MainTranslator]: Completed translation [2020-10-20 06:24:16,923 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16 WrapperNode [2020-10-20 06:24:16,923 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-20 06:24:16,926 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-20 06:24:16,927 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-20 06:24:16,927 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-20 06:24:16,935 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,940 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,958 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-20 06:24:16,958 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-20 06:24:16,959 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-20 06:24:16,959 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-20 06:24:16,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,969 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,969 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,971 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,976 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,977 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... [2020-10-20 06:24:16,978 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-20 06:24:16,978 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-20 06:24:16,979 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-20 06:24:16,979 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-20 06:24:16,980 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-20 06:24:17,040 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-20 06:24:17,040 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-20 06:24:17,182 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-20 06:24:17,183 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-20 06:24:17,184 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:17 BoogieIcfgContainer [2020-10-20 06:24:17,185 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-20 06:24:17,192 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-20 06:24:17,192 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-20 06:24:17,196 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-20 06:24:17,196 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.10 06:24:16" (1/3) ... [2020-10-20 06:24:17,197 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375d121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:24:17, skipping insertion in model container [2020-10-20 06:24:17,198 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.10 06:24:16" (2/3) ... [2020-10-20 06:24:17,198 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@375d121a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.10 06:24:17, skipping insertion in model container [2020-10-20 06:24:17,199 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:17" (3/3) ... [2020-10-20 06:24:17,200 INFO L111 eAbstractionObserver]: Analyzing ICFG ChenCookFuhsNimkarOHearn-TACAS2014-Introduction.c [2020-10-20 06:24:17,212 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-20 06:24:17,219 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-20 06:24:17,232 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-20 06:24:17,255 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-20 06:24:17,255 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-20 06:24:17,255 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-20 06:24:17,255 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-20 06:24:17,256 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-20 06:24:17,256 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-20 06:24:17,256 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-20 06:24:17,256 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-20 06:24:17,269 INFO L276 IsEmpty]: Start isEmpty. Operand 7 states. [2020-10-20 06:24:17,274 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-20 06:24:17,277 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 7 states. [2020-10-20 06:24:17,317 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-20 06:24:17,317 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-20 06:24:17,317 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-20 06:24:17,317 INFO L277 CegarLoopResult]: At program point L27(lines 14 28) the Hoare annotation is: true [2020-10-20 06:24:17,318 INFO L274 CegarLoopResult]: For program point L23-1(lines 14 28) no Hoare annotation was computed. [2020-10-20 06:24:17,318 INFO L274 CegarLoopResult]: For program point L23-2(lines 23 25) no Hoare annotation was computed. [2020-10-20 06:24:17,318 INFO L274 CegarLoopResult]: For program point L18(lines 18 22) no Hoare annotation was computed. [2020-10-20 06:24:17,325 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.10 06:24:17 BoogieIcfgContainer [2020-10-20 06:24:17,326 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-20 06:24:17,326 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-20 06:24:17,327 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-20 06:24:17,327 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-20 06:24:17,327 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.10 06:24:17" (3/4) ... [2020-10-20 06:24:17,331 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-20 06:24:17,343 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-10-20 06:24:17,344 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 2 nodes and edges [2020-10-20 06:24:17,385 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-20 06:24:17,385 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-20 06:24:17,388 INFO L168 Benchmark]: Toolchain (without parser) took 761.75 ms. Allocated memory was 40.4 MB in the beginning and 43.5 MB in the end (delta: 3.1 MB). Free memory was 19.3 MB in the beginning and 14.9 MB in the end (delta: 4.4 MB). Peak memory consumption was 7.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,389 INFO L168 Benchmark]: CDTParser took 0.31 ms. Allocated memory is still 30.9 MB. Free memory was 7.3 MB in the beginning and 7.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,390 INFO L168 Benchmark]: CACSL2BoogieTranslator took 289.63 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 18.5 MB in the beginning and 20.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,391 INFO L168 Benchmark]: Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 40.9 MB. Free memory was 20.9 MB in the beginning and 19.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,392 INFO L168 Benchmark]: Boogie Preprocessor took 19.59 ms. Allocated memory is still 40.9 MB. Free memory was 19.3 MB in the beginning and 18.3 MB in the end (delta: 967.5 kB). Peak memory consumption was 967.5 kB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,393 INFO L168 Benchmark]: RCFGBuilder took 206.51 ms. Allocated memory is still 40.9 MB. Free memory was 18.2 MB in the beginning and 9.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,394 INFO L168 Benchmark]: TraceAbstraction took 134.15 ms. Allocated memory is still 43.5 MB. Free memory was 25.6 MB in the beginning and 17.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,394 INFO L168 Benchmark]: Witness Printer took 59.17 ms. Allocated memory is still 43.5 MB. Free memory was 17.6 MB in the beginning and 14.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. [2020-10-20 06:24:17,399 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.31 ms. Allocated memory is still 30.9 MB. Free memory was 7.3 MB in the beginning and 7.3 MB in the end (delta: 43.6 kB). Peak memory consumption was 43.6 kB. Max. memory is 14.3 GB. * CACSL2BoogieTranslator took 289.63 ms. Allocated memory was 40.4 MB in the beginning and 40.9 MB in the end (delta: 524.3 kB). Free memory was 18.5 MB in the beginning and 20.9 MB in the end (delta: -2.4 MB). Peak memory consumption was 9.8 MB. Max. memory is 14.3 GB. * Boogie Procedure Inliner took 31.82 ms. Allocated memory is still 40.9 MB. Free memory was 20.9 MB in the beginning and 19.5 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.4 MB. Max. memory is 14.3 GB. * Boogie Preprocessor took 19.59 ms. Allocated memory is still 40.9 MB. Free memory was 19.3 MB in the beginning and 18.3 MB in the end (delta: 967.5 kB). Peak memory consumption was 967.5 kB. Max. memory is 14.3 GB. * RCFGBuilder took 206.51 ms. Allocated memory is still 40.9 MB. Free memory was 18.2 MB in the beginning and 9.6 MB in the end (delta: 8.5 MB). Peak memory consumption was 8.5 MB. Max. memory is 14.3 GB. * TraceAbstraction took 134.15 ms. Allocated memory is still 43.5 MB. Free memory was 25.6 MB in the beginning and 17.6 MB in the end (delta: 8.0 MB). Peak memory consumption was 8.0 MB. Max. memory is 14.3 GB. * Witness Printer took 59.17 ms. Allocated memory is still 43.5 MB. Free memory was 17.6 MB in the beginning and 14.9 MB in the end (delta: 2.7 MB). Peak memory consumption was 2.7 MB. Max. memory is 14.3 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - AllSpecificationsHoldResult: All specifications hold We were not able to verify any specifiation because the program does not contain any specification. - InvariantResult [Line: 14]: 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, 1 LocationsWithAnnotation, 1 PreInvPairs, 1 NumberOfFragments, 1 HoareAnnotationTreeSize, 1 FomulaSimplifications, 0 FormulaSimplificationTreeSizeReduction, 0.0s HoareSimplificationTime, 1 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...