./Ultimate.py --spec ../sv-benchmarks/c/properties/no-overflow.prp --file ../sv-benchmarks/c/recursive-simple/id_o100.c --full-output --architecture 32bit -------------------------------------------------------------------------------- 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/recursive-simple/id_o100.c -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 27ee5823c4f9461fe660077edf879109ec85120b ....................................................................................................................................................................................................................................... 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 04:09:47,073 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:09:47,077 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:09:47,136 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:09:47,137 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:09:47,144 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:09:47,147 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:09:47,154 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:09:47,156 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:09:47,157 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:09:47,159 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:09:47,160 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:09:47,160 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:09:47,162 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:09:47,163 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:09:47,164 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:09:47,166 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:09:47,167 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:09:47,169 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:09:47,176 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:09:47,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:09:47,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:09:47,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:09:47,182 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:09:47,185 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:09:47,186 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:09:47,186 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:09:47,188 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:09:47,188 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:09:47,190 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:09:47,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:09:47,191 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:09:47,192 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:09:47,193 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:09:47,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:09:47,195 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:09:47,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:09:47,196 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:09:47,196 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:09:47,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:09:47,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:09:47,200 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Overflow-32bit-Automizer_Default.epf [2020-10-26 04:09:47,233 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:09:47,236 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:09:47,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:09:47,238 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:09:47,238 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:09:47,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:09:47,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:09:47,239 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:09:47,239 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:09:47,239 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:09:47,239 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:09:47,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-26 04:09:47,240 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-26 04:09:47,240 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-26 04:09:47,240 INFO L138 SettingsManager]: * Check absence of signed integer overflows=true [2020-10-26 04:09:47,240 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:09:47,240 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:09:47,241 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:09:47,241 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-26 04:09:47,241 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:09:47,241 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:09:47,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-26 04:09:47,242 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-26 04:09:47,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-26 04:09:47,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:09:47,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-26 04:09:47,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-26 04:09:47,243 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:09:47,243 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-26 04:09:47,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-26 04:09:47,243 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:09:47,243 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! overflow) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 27ee5823c4f9461fe660077edf879109ec85120b [2020-10-26 04:09:47,657 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:09:47,708 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:09:47,714 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:09:47,716 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:09:47,717 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:09:47,718 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/recursive-simple/id_o100.c [2020-10-26 04:09:47,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0f148b/97e7a48c64c242fc9b5dd1f5a0e44c4d/FLAGbbe9d8197 [2020-10-26 04:09:48,392 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:09:48,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/recursive-simple/id_o100.c [2020-10-26 04:09:48,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0f148b/97e7a48c64c242fc9b5dd1f5a0e44c4d/FLAGbbe9d8197 [2020-10-26 04:09:48,764 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d3b0f148b/97e7a48c64c242fc9b5dd1f5a0e44c4d [2020-10-26 04:09:48,768 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:09:48,777 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:09:48,782 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:48,783 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:09:48,787 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:09:48,788 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:48" (1/1) ... [2020-10-26 04:09:48,796 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4641581f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:48, skipping insertion in model container [2020-10-26 04:09:48,796 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:09:48" (1/1) ... [2020-10-26 04:09:48,807 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:09:48,824 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:09:49,026 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:49,038 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:09:49,054 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:09:49,072 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:09:49,073 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49 WrapperNode [2020-10-26 04:09:49,073 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:09:49,075 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:49,075 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:09:49,075 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:09:49,084 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,092 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,111 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:09:49,113 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:09:49,113 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:09:49,113 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:09:49,123 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,123 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,125 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,125 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,129 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,131 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,132 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (1/1) ... [2020-10-26 04:09:49,134 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:09:49,135 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:09:49,135 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:09:49,135 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:09:49,136 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (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 04:09:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:09:49,219 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:09:49,219 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure id [2020-10-26 04:09:49,220 INFO L138 BoogieDeclarations]: Found implementation of procedure id [2020-10-26 04:09:49,220 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:09:49,460 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:09:49,460 INFO L298 CfgBuilder]: Removed 6 assume(true) statements. [2020-10-26 04:09:49,462 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:49 BoogieIcfgContainer [2020-10-26 04:09:49,462 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:09:49,464 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-26 04:09:49,465 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-26 04:09:49,468 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-26 04:09:49,469 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 26.10 04:09:48" (1/3) ... [2020-10-26 04:09:49,470 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3a5d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:09:49, skipping insertion in model container [2020-10-26 04:09:49,470 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:09:49" (2/3) ... [2020-10-26 04:09:49,471 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b3a5d63 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 26.10 04:09:49, skipping insertion in model container [2020-10-26 04:09:49,471 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:49" (3/3) ... [2020-10-26 04:09:49,473 INFO L111 eAbstractionObserver]: Analyzing ICFG id_o100.c [2020-10-26 04:09:49,489 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-10-26 04:09:49,499 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 0 error locations. [2020-10-26 04:09:49,532 INFO L253 AbstractCegarLoop]: Starting to check reachability of 0 error locations. [2020-10-26 04:09:49,590 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-26 04:09:49,590 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-26 04:09:49,591 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-10-26 04:09:49,591 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:09:49,591 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:09:49,592 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-26 04:09:49,592 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:09:49,592 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-26 04:09:49,609 INFO L276 IsEmpty]: Start isEmpty. Operand 16 states. [2020-10-26 04:09:49,615 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-26 04:09:49,622 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 16 states. [2020-10-26 04:09:49,683 INFO L274 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-26 04:09:49,684 INFO L274 CegarLoopResult]: For program point L-1(line -1) no Hoare annotation was computed. [2020-10-26 04:09:49,684 INFO L274 CegarLoopResult]: For program point ULTIMATE.startENTRY(line -1) no Hoare annotation was computed. [2020-10-26 04:09:49,684 INFO L274 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-26 04:09:49,684 INFO L274 CegarLoopResult]: For program point L15(line 15) no Hoare annotation was computed. [2020-10-26 04:09:49,685 INFO L274 CegarLoopResult]: For program point L14(lines 14 16) no Hoare annotation was computed. [2020-10-26 04:09:49,685 INFO L277 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-10-26 04:09:49,685 INFO L274 CegarLoopResult]: For program point L13-1(line 13) no Hoare annotation was computed. [2020-10-26 04:09:49,685 INFO L274 CegarLoopResult]: For program point L11(lines 11 17) no Hoare annotation was computed. [2020-10-26 04:09:49,685 INFO L274 CegarLoopResult]: For program point L4(line 4) no Hoare annotation was computed. [2020-10-26 04:09:49,686 INFO L274 CegarLoopResult]: For program point idFINAL(lines 6 9) no Hoare annotation was computed. [2020-10-26 04:09:49,686 INFO L274 CegarLoopResult]: For program point idEXIT(lines 6 9) no Hoare annotation was computed. [2020-10-26 04:09:49,687 INFO L277 CegarLoopResult]: At program point L8(line 8) the Hoare annotation is: true [2020-10-26 04:09:49,687 INFO L277 CegarLoopResult]: At program point idENTRY(lines 6 9) the Hoare annotation is: true [2020-10-26 04:09:49,687 INFO L274 CegarLoopResult]: For program point L7(line 7) no Hoare annotation was computed. [2020-10-26 04:09:49,687 INFO L274 CegarLoopResult]: For program point L8-1(line 8) no Hoare annotation was computed. [2020-10-26 04:09:49,692 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 26.10 04:09:49 BoogieIcfgContainer [2020-10-26 04:09:49,692 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-26 04:09:49,693 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:09:49,694 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:09:49,694 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:09:49,695 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:09:49" (3/4) ... [2020-10-26 04:09:49,699 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-10-26 04:09:49,707 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure id [2020-10-26 04:09:49,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 9 nodes and edges [2020-10-26 04:09:49,712 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2020-10-26 04:09:49,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:09:49,713 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-10-26 04:09:49,763 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:09:49,763 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:09:49,767 INFO L168 Benchmark]: Toolchain (without parser) took 993.69 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 26.4 MB in the beginning and 42.8 MB in the end (delta: -16.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,768 INFO L168 Benchmark]: CDTParser took 0.33 ms. Allocated memory is still 48.2 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:09:49,769 INFO L168 Benchmark]: CACSL2BoogieTranslator took 291.33 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 30.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,769 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 48.2 MB. Free memory was 30.2 MB in the beginning and 28.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:09:49,770 INFO L168 Benchmark]: Boogie Preprocessor took 21.52 ms. Allocated memory is still 48.2 MB. Free memory was 28.9 MB in the beginning and 28.0 MB in the end (delta: 869.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,771 INFO L168 Benchmark]: RCFGBuilder took 327.71 ms. Allocated memory is still 48.2 MB. Free memory was 27.8 MB in the beginning and 30.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,772 INFO L168 Benchmark]: TraceAbstraction took 227.87 ms. Allocated memory is still 48.2 MB. Free memory was 30.5 MB in the beginning and 22.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,773 INFO L168 Benchmark]: Witness Printer took 70.20 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 42.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:09:49,778 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.33 ms. Allocated memory is still 48.2 MB. Free memory was 35.5 MB in the beginning and 35.5 MB in the end (delta: 30.8 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 291.33 ms. Allocated memory is still 48.2 MB. Free memory was 25.7 MB in the beginning and 30.2 MB in the end (delta: -4.5 MB). Peak memory consumption was 11.8 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 37.24 ms. Allocated memory is still 48.2 MB. Free memory was 30.2 MB in the beginning and 28.9 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.1 GB. * Boogie Preprocessor took 21.52 ms. Allocated memory is still 48.2 MB. Free memory was 28.9 MB in the beginning and 28.0 MB in the end (delta: 869.9 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 327.71 ms. Allocated memory is still 48.2 MB. Free memory was 27.8 MB in the beginning and 30.8 MB in the end (delta: -3.0 MB). Peak memory consumption was 9.7 MB. Max. memory is 16.1 GB. * TraceAbstraction took 227.87 ms. Allocated memory is still 48.2 MB. Free memory was 30.5 MB in the beginning and 22.8 MB in the end (delta: 7.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Witness Printer took 70.20 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 22.8 MB in the beginning and 42.8 MB in the end (delta: -20.0 MB). Peak memory consumption was 2.6 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. - StatisticsResult: Ultimate Automizer benchmark data CFG has 2 procedures, 16 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=16occurred 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, 5 PreInvPairs, 5 NumberOfFragments, 3 HoareAnnotationTreeSize, 5 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...