./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 f470102c 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 0.1.25-f470102 [2019-11-28 20:47:21,627 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:47:21,630 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:47:21,649 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:47:21,649 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:47:21,651 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:47:21,653 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:47:21,663 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:47:21,668 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:47:21,671 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:47:21,673 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:47:21,675 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:47:21,675 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:47:21,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:47:21,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:47:21,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:47:21,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:47:21,684 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:47:21,687 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:47:21,691 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:47:21,693 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:47:21,694 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:47:21,696 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:47:21,697 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:47:21,700 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:47:21,700 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:47:21,701 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:47:21,702 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:47:21,703 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:47:21,704 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:47:21,704 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:47:21,705 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:47:21,706 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:47:21,706 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:47:21,708 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:47:21,708 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:47:21,709 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:47:21,710 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:47:21,710 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:47:21,712 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:47:21,713 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:47:21,714 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:47:21,743 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:47:21,743 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:47:21,744 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:47:21,745 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:47:21,745 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:47:21,745 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:47:21,745 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:47:21,746 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:47:21,746 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:47:21,746 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:47:21,746 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:47:21,747 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:47:21,747 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:47:21,747 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:47:21,748 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:47:21,748 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:47:21,748 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:47:21,748 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:47:21,749 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:47:21,749 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:47:21,749 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:47:21,749 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:47:21,750 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:47:21,750 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:47:21,750 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:47:21,750 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:47:21,751 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:47:21,751 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:47:21,751 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:47:21,752 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:47:21,752 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:47:21,752 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:47:21,753 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:47:21,753 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 20:47:22,083 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:47:22,101 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:47:22,104 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:47:22,106 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:47:22,106 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:47:22,107 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2019-11-28 20:47:22,160 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c407f9a28/a0cd374365114c048e9c70fb59781dbf/FLAGa6dd8c369 [2019-11-28 20:47:22,612 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:47:22,613 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2019-11-28 20:47:22,629 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c407f9a28/a0cd374365114c048e9c70fb59781dbf/FLAGa6dd8c369 [2019-11-28 20:47:22,995 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/c407f9a28/a0cd374365114c048e9c70fb59781dbf [2019-11-28 20:47:22,998 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:47:23,000 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:47:23,001 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:47:23,001 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:47:23,005 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:47:23,006 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:47:22" (1/1) ... [2019-11-28 20:47:23,009 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3e137d3e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23, skipping insertion in model container [2019-11-28 20:47:23,009 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:47:22" (1/1) ... [2019-11-28 20:47:23,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:47:23,058 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:47:23,489 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:47:23,498 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:47:23,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:47:23,610 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:47:23,611 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23 WrapperNode [2019-11-28 20:47:23,611 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:47:23,612 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:47:23,612 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:47:23,612 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:47:23,618 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,628 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,684 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:47:23,684 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:47:23,684 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:47:23,685 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:47:23,692 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,692 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,700 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,700 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,726 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,744 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,754 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (1/1) ... [2019-11-28 20:47:23,768 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:47:23,768 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:47:23,769 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:47:23,771 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:47:23,772 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (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 20:47:23,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:47:23,846 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:47:24,783 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:47:24,783 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 20:47:24,785 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:24 BoogieIcfgContainer [2019-11-28 20:47:24,785 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:47:24,786 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:47:24,786 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:47:24,790 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:47:24,790 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:24,791 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:47:22" (1/3) ... [2019-11-28 20:47:24,791 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7629d175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:47:24, skipping insertion in model container [2019-11-28 20:47:24,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:24,792 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:23" (2/3) ... [2019-11-28 20:47:24,792 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@7629d175 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:47:24, skipping insertion in model container [2019-11-28 20:47:24,792 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:24,793 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:24" (3/3) ... [2019-11-28 20:47:24,794 INFO L371 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2019-11-28 20:47:24,838 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:47:24,838 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:47:24,838 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:47:24,838 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:47:24,840 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:47:24,840 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:47:24,840 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:47:24,840 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:47:24,862 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2019-11-28 20:47:24,889 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2019-11-28 20:47:24,890 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:24,890 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:24,897 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:47:24,897 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:47:24,897 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:47:24,898 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2019-11-28 20:47:24,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2019-11-28 20:47:24,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:24,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:24,906 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:47:24,906 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:47:24,912 INFO L794 eck$LassoCheckResult]: Stem: 77#ULTIMATE.startENTRYtrue ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 9#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 104#L24-2true [2019-11-28 20:47:24,913 INFO L796 eck$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 20:47:24,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:24,918 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 20:47:24,927 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:24,927 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1607278528] [2019-11-28 20:47:24,928 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,037 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:25,039 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:25,039 INFO L82 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2019-11-28 20:47:25,039 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:25,040 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [489948833] [2019-11-28 20:47:25,040 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,061 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:25,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:25,063 INFO L82 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2019-11-28 20:47:25,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:25,064 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1825361556] [2019-11-28 20:47:25,064 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:47:25,124 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 20:47:25,125 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1825361556] [2019-11-28 20:47:25,126 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:47:25,126 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:47:25,127 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1491943837] [2019-11-28 20:47:25,260 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:47:25,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:47:25,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:47:25,281 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2019-11-28 20:47:25,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:47:25,452 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2019-11-28 20:47:25,452 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:47:25,455 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2019-11-28 20:47:25,464 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2019-11-28 20:47:25,474 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2019-11-28 20:47:25,479 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2019-11-28 20:47:25,480 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2019-11-28 20:47:25,482 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2019-11-28 20:47:25,483 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:47:25,483 INFO L688 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 20:47:25,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2019-11-28 20:47:25,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2019-11-28 20:47:25,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2019-11-28 20:47:25,515 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2019-11-28 20:47:25,516 INFO L711 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 20:47:25,516 INFO L591 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2019-11-28 20:47:25,517 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:47:25,517 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2019-11-28 20:47:25,518 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2019-11-28 20:47:25,519 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:25,519 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:25,519 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:47:25,519 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2019-11-28 20:47:25,520 INFO L794 eck$LassoCheckResult]: Stem: 290#ULTIMATE.startENTRY ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 252#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 253#L24-2 goto; 293#L561 [2019-11-28 20:47:25,520 INFO L796 eck$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 20:47:25,521 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:25,521 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-11-28 20:47:25,521 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:25,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1106701591] [2019-11-28 20:47:25,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,535 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:25,536 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:25,536 INFO L82 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2019-11-28 20:47:25,536 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:25,537 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1897577803] [2019-11-28 20:47:25,537 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,553 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:25,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:25,556 INFO L82 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2019-11-28 20:47:25,557 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:25,557 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1388303567] [2019-11-28 20:47:25,557 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:25,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:25,596 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:25,759 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:47:25 BoogieIcfgContainer [2019-11-28 20:47:25,759 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:47:25,761 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:47:25,762 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:47:25,762 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:47:25,763 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:24" (3/4) ... [2019-11-28 20:47:25,766 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:47:25,839 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:47:25,840 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:47:25,842 INFO L168 Benchmark]: Toolchain (without parser) took 2841.44 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 960.3 MB in the beginning and 972.1 MB in the end (delta: -11.7 MB). Peak memory consumption was 105.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,843 INFO L168 Benchmark]: CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:47:25,843 INFO L168 Benchmark]: CACSL2BoogieTranslator took 610.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,844 INFO L168 Benchmark]: Boogie Procedure Inliner took 72.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,845 INFO L168 Benchmark]: Boogie Preprocessor took 83.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,845 INFO L168 Benchmark]: RCFGBuilder took 1016.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,846 INFO L168 Benchmark]: BuchiAutomizer took 973.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 972.1 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:25,846 INFO L168 Benchmark]: Witness Printer took 78.91 ms. Allocated memory is still 1.1 GB. Free memory is still 972.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-28 20:47:25,850 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.13 ms. Allocated memory is still 1.0 GB. Free memory is still 987.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 610.08 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 117.4 MB). Free memory was 960.3 MB in the beginning and 1.1 GB in the end (delta: -144.7 MB). Peak memory consumption was 26.2 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 72.45 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 83.79 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.7 MB). Peak memory consumption was 6.7 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1016.86 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 52.4 MB). Peak memory consumption was 52.4 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 973.50 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 972.1 MB in the end (delta: 67.1 MB). Peak memory consumption was 67.1 MB. Max. memory is 11.5 GB. * Witness Printer took 78.91 ms. Allocated memory is still 1.1 GB. Free memory is still 972.1 MB. There was no memory consumed. 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 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.1s. 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, 0.1s 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@3dfc6b72=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4aa278c2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@170d38be=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a844e75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35a2f83=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bedeb85=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@196ae7b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ed0609a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2927c9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@59143b66=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@5244bda2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@40727d2e=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@567221fb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60bdfaf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a0c59c0=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b552e3a=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@456bef75=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3838d23d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22469a09=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ace3562=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5fe60b22=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5458b201=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@304529f0=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72e94b28=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13474f87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@13a552f6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50831046=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a895d64=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34ded732=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b8e7590=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@5dbe48e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dc4e5a6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f30f9aa=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4242aea=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7271ebfe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57c61fff=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b959c0a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7130e262=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b93c037=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3568346=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...