./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 30f4e4ab Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/psyco/psyco_abp_1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-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(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 747981090a474d9d2269aea1ffd03eef2ddc8848 .............................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.24-30f4e4a [2019-11-28 03:14:52,118 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 03:14:52,121 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 03:14:52,138 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 03:14:52,139 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 03:14:52,140 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 03:14:52,142 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 03:14:52,144 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 03:14:52,146 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 03:14:52,147 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 03:14:52,148 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 03:14:52,150 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 03:14:52,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 03:14:52,151 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 03:14:52,152 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 03:14:52,154 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 03:14:52,155 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 03:14:52,156 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 03:14:52,158 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 03:14:52,160 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 03:14:52,162 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 03:14:52,163 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 03:14:52,165 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 03:14:52,166 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 03:14:52,168 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 03:14:52,169 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 03:14:52,169 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 03:14:52,172 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 03:14:52,174 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 03:14:52,175 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 03:14:52,176 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 03:14:52,177 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 03:14:52,178 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 03:14:52,179 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 03:14:52,180 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 03:14:52,183 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 03:14:52,184 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 03:14:52,185 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 03:14:52,185 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 03:14:52,186 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 03:14:52,190 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 03:14:52,192 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 03:14:52,215 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 03:14:52,216 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 03:14:52,217 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 03:14:52,218 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 03:14:52,218 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 03:14:52,218 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 03:14:52,219 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 03:14:52,219 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 03:14:52,219 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 03:14:52,219 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 03:14:52,220 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 03:14:52,220 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 03:14:52,220 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 03:14:52,221 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 03:14:52,221 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 03:14:52,221 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 03:14:52,222 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 03:14:52,222 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 03:14:52,222 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 03:14:52,223 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 03:14:52,223 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 03:14:52,223 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 03:14:52,223 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 03:14:52,224 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 03:14:52,224 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 03:14:52,224 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 03:14:52,225 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 03:14:52,225 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 03:14:52,225 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 03:14:52,225 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 03:14:52,226 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 03:14:52,227 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 03:14:52,227 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR 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(F end) ) 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 -> 747981090a474d9d2269aea1ffd03eef2ddc8848 [2019-11-28 03:14:52,557 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 03:14:52,571 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 03:14:52,575 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 03:14:52,576 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 03:14:52,577 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 03:14:52,578 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2019-11-28 03:14:52,652 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b47b1da/4d69817d1a154e0281aaf1fe777c30e6/FLAG3b0f328b7 [2019-11-28 03:14:53,182 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 03:14:53,183 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2019-11-28 03:14:53,196 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b47b1da/4d69817d1a154e0281aaf1fe777c30e6/FLAG3b0f328b7 [2019-11-28 03:14:53,510 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/94b47b1da/4d69817d1a154e0281aaf1fe777c30e6 [2019-11-28 03:14:53,513 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 03:14:53,515 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 03:14:53,516 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 03:14:53,516 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 03:14:53,520 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 03:14:53,521 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:53" (1/1) ... [2019-11-28 03:14:53,524 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@712b286a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:53, skipping insertion in model container [2019-11-28 03:14:53,525 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 03:14:53" (1/1) ... [2019-11-28 03:14:53,532 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 03:14:53,577 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 03:14:53,895 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:14:53,901 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 03:14:54,063 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 03:14:54,080 INFO L208 MainTranslator]: Completed translation [2019-11-28 03:14:54,081 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54 WrapperNode [2019-11-28 03:14:54,081 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 03:14:54,082 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 03:14:54,082 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 03:14:54,083 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 03:14:54,092 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,105 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,161 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 03:14:54,161 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 03:14:54,161 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 03:14:54,161 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 03:14:54,171 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,171 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,175 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,176 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,190 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,199 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,205 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (1/1) ... [2019-11-28 03:14:54,220 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 03:14:54,220 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 03:14:54,221 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 03:14:54,221 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 03:14:54,225 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (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:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-11-28 03:14:54,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 03:14:54,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 03:14:55,349 INFO L292 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 03:14:55,350 INFO L297 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 03:14:55,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:55 BoogieIcfgContainer [2019-11-28 03:14:55,352 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 03:14:55,352 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 03:14:55,353 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 03:14:55,357 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 03:14:55,358 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:14:55,359 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 03:14:53" (1/3) ... [2019-11-28 03:14:55,360 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22ab50f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:14:55, skipping insertion in model container [2019-11-28 03:14:55,360 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:14:55,360 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 03:14:54" (2/3) ... [2019-11-28 03:14:55,361 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22ab50f5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 03:14:55, skipping insertion in model container [2019-11-28 03:14:55,361 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 03:14:55,361 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:55" (3/3) ... [2019-11-28 03:14:55,363 INFO L371 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2019-11-28 03:14:55,411 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 03:14:55,411 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 03:14:55,411 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 03:14:55,412 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 03:14:55,412 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 03:14:55,412 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 03:14:55,413 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 03:14:55,413 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 03:14:55,440 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2019-11-28 03:14:55,471 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2019-11-28 03:14:55,472 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:14:55,472 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:14:55,483 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:14:55,484 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:14:55,484 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 03:14:55,484 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2019-11-28 03:14:55,493 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2019-11-28 03:14:55,493 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:14:55,493 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:14:55,494 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 03:14:55,494 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 03:14:55,502 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 9#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 104#L24-2true [2019-11-28 03:14:55,502 INFO L796 eck$LassoCheckResult]: Loop: 104#L24-2true goto; 92#L561true assume !false;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~P5~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~P6~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~P7~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~P8~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P9~0 := main_#t~nondet8;havoc main_#t~nondet8; 82#L38true assume !(main_~this_expect~0 > 16); 95#L38-2true assume !(0 == main_~q~0); 88#L63true assume !(1 == main_~q~0); 51#L163true assume !(2 == main_~q~0); 6#L263true assume !(3 == main_~q~0); 86#L363true assume !(4 == main_~q~0); 54#L463true assume !(5 == main_~q~0); 104#L24-2true [2019-11-28 03:14:55,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:55,510 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 03:14:55,518 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:55,519 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2046547772] [2019-11-28 03:14:55,519 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:55,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:55,620 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:14:55,622 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:55,622 INFO L82 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2019-11-28 03:14:55,623 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:55,623 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1473825635] [2019-11-28 03:14:55,623 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:55,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:55,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:55,645 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:14:55,647 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:55,648 INFO L82 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2019-11-28 03:14:55,648 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:55,649 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1353774375] [2019-11-28 03:14:55,649 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:55,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 03:14:55,714 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-28 03:14:55,715 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1353774375] [2019-11-28 03:14:55,716 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 03:14:55,716 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 03:14:55,717 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825115532] [2019-11-28 03:14:55,851 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 03:14:55,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 03:14:55,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 03:14:55,872 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2019-11-28 03:14:56,035 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 03:14:56,036 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2019-11-28 03:14:56,037 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 03:14:56,040 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2019-11-28 03:14:56,051 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2019-11-28 03:14:56,061 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2019-11-28 03:14:56,063 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2019-11-28 03:14:56,066 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2019-11-28 03:14:56,067 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2019-11-28 03:14:56,069 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 03:14:56,070 INFO L688 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 03:14:56,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2019-11-28 03:14:56,115 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-11-28 03:14:56,116 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-28 03:14:56,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2019-11-28 03:14:56,123 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 03:14:56,123 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 03:14:56,123 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 03:14:56,124 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2019-11-28 03:14:56,132 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2019-11-28 03:14:56,132 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 03:14:56,132 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 03:14:56,133 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 03:14:56,133 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 03:14:56,134 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 252#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 253#L24-2 goto; 293#L561 [2019-11-28 03:14:56,134 INFO L796 eck$LassoCheckResult]: Loop: 293#L561 assume !false;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3;main_~P5~0 := main_#t~nondet4;havoc main_#t~nondet4;main_~P6~0 := main_#t~nondet5;havoc main_#t~nondet5;main_~P7~0 := main_#t~nondet6;havoc main_#t~nondet6;main_~P8~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P9~0 := main_#t~nondet8;havoc main_#t~nondet8; 297#L38 assume !(main_~this_expect~0 > 16); 298#L38-2 assume 0 == main_~q~0; 292#L44 assume !(0 != main_#t~nondet9);havoc main_#t~nondet9; 293#L561 [2019-11-28 03:14:56,134 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:56,135 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-11-28 03:14:56,135 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:56,136 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1192190973] [2019-11-28 03:14:56,136 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:56,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,163 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:14:56,164 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:56,164 INFO L82 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2019-11-28 03:14:56,164 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:56,165 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [410911794] [2019-11-28 03:14:56,165 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:56,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,179 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:14:56,179 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 03:14:56,180 INFO L82 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2019-11-28 03:14:56,180 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 03:14:56,181 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [982655829] [2019-11-28 03:14:56,181 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 03:14:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 03:14:56,200 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 03:14:56,374 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 03:14:56 BoogieIcfgContainer [2019-11-28 03:14:56,374 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 03:14:56,375 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 03:14:56,375 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 03:14:56,375 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 03:14:56,376 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 03:14:55" (3/4) ... [2019-11-28 03:14:56,380 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 03:14:56,436 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 03:14:56,437 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 03:14:56,440 INFO L168 Benchmark]: Toolchain (without parser) took 2924.11 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 995.7 MB in the end (delta: -42.0 MB). Peak memory consumption was 101.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,440 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 03:14:56,441 INFO L168 Benchmark]: CACSL2BoogieTranslator took 565.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,442 INFO L168 Benchmark]: Boogie Procedure Inliner took 78.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,443 INFO L168 Benchmark]: Boogie Preprocessor took 58.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,444 INFO L168 Benchmark]: RCFGBuilder took 1131.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,444 INFO L168 Benchmark]: BuchiAutomizer took 1021.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.7 MB). Peak memory consumption was 65.7 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,445 INFO L168 Benchmark]: Witness Printer took 62.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 03:14:56,449 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 1.0 GB. Free memory is still 981.8 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 565.81 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 143.7 MB). Free memory was 953.7 MB in the beginning and 1.1 GB in the end (delta: -179.5 MB). Peak memory consumption was 26.4 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 78.79 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.2 MB). Peak memory consumption was 8.2 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 58.85 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1131.45 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 50.4 MB). Peak memory consumption was 50.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1021.87 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 65.7 MB). Peak memory consumption was 65.7 MB. Max. memory is 11.5 GB. * Witness Printer took 62.28 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 995.7 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 204 SDtfs, 5 SDslu, 158 SDs, 0 SdLazy, 43 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 24]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {m_Protocol=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f609bd7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31db2320=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72f337bd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7274c0dc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65216a37=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d7daf68=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3af6922a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2fb5e651=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14306e53=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c1a9dd6=0, P8=11, P6=13, P4=15, P2=10, this_buffer_empty=0, this_expect=0, m_recv_ack_1_2=7, m_msg_1_1=4, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22a58211=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ab91a0=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40faa580=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@36d1b974=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47fa4e6b=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c5f2489=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b515fd2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1f0a7ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@fc310ad=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37b90b9b=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@165746d2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f4e8411=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f8b9295=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b826816=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5bce958f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@76ed12a2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2df65775=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c9832d6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@68519588=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@441c3f86=0, P9=14, P7=9, P5=16, P3=8, P1=12, m_msg_2=2, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@265837a5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@727e6192=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ce0cd38=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d561561=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30bf5a98=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5078f917=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3c463723=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b44ca11=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ab7521a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40a4dd79=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 24]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L5] int m_Protocol = 1; [L6] int m_msg_2 = 2; [L7] int m_recv_ack_2 = 3; [L8] int m_msg_1_1 = 4; [L9] int m_msg_1_2 = 5; [L10] int m_recv_ack_1_1 = 6; [L11] int m_recv_ack_1_2 = 7; [L16] int q = 0; [L17] int method_id; [L20] int this_expect = 0; [L21] int this_buffer_empty = 0; Loop: [L24] COND TRUE 1 [L27] int P1=__VERIFIER_nondet_int(); [L28] int P2=__VERIFIER_nondet_int(); [L29] int P3=__VERIFIER_nondet_int(); [L30] int P4=__VERIFIER_nondet_int(); [L31] int P5=__VERIFIER_nondet_int(); [L32] int P6=__VERIFIER_nondet_int(); [L33] int P7=__VERIFIER_nondet_int(); [L34] int P8=__VERIFIER_nondet_int(); [L35] int P9=__VERIFIER_nondet_int(); [L38] COND FALSE !(this_expect > 16) [L43] COND TRUE q == 0 [L44] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...