./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 6b5699aa Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer --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 45f0d0ab6d17adbe7cd7f36bcd9ec097795f4c36 ............................................................................................................................................................................................................................................................................................................................................ 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 0.1.24-6b5699a [2019-11-25 08:46:15,293 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-25 08:46:15,294 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-25 08:46:15,309 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-25 08:46:15,309 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-25 08:46:15,310 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-25 08:46:15,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-25 08:46:15,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-25 08:46:15,325 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-25 08:46:15,329 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-25 08:46:15,330 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-25 08:46:15,331 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-25 08:46:15,331 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-25 08:46:15,334 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-25 08:46:15,335 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-25 08:46:15,336 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-25 08:46:15,337 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-25 08:46:15,337 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-25 08:46:15,340 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-25 08:46:15,344 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-25 08:46:15,348 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-25 08:46:15,352 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-25 08:46:15,355 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-25 08:46:15,355 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-25 08:46:15,360 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-25 08:46:15,361 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-25 08:46:15,361 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-25 08:46:15,362 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-25 08:46:15,363 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-25 08:46:15,364 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-25 08:46:15,364 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-25 08:46:15,365 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-25 08:46:15,365 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-25 08:46:15,366 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-25 08:46:15,367 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-25 08:46:15,367 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-25 08:46:15,368 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-25 08:46:15,368 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-25 08:46:15,368 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-25 08:46:15,369 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-25 08:46:15,370 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-25 08:46:15,371 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-25 08:46:15,397 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-25 08:46:15,397 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-25 08:46:15,398 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-25 08:46:15,398 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-25 08:46:15,399 INFO L138 SettingsManager]: * Use SBE=true [2019-11-25 08:46:15,399 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-25 08:46:15,399 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-25 08:46:15,399 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-25 08:46:15,399 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-25 08:46:15,399 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-25 08:46:15,400 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-25 08:46:15,400 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-25 08:46:15,400 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-25 08:46:15,400 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-25 08:46:15,400 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-25 08:46:15,401 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-25 08:46:15,402 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-25 08:46:15,402 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-25 08:46:15,402 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-25 08:46:15,402 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-25 08:46:15,402 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-25 08:46:15,403 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-25 08:46:15,403 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-25 08:46:15,403 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-25 08:46:15,403 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-25 08:46:15,403 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-25 08:46:15,404 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-25 08:46:15,404 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 -> /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer 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 -> 45f0d0ab6d17adbe7cd7f36bcd9ec097795f4c36 [2019-11-25 08:46:15,559 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-25 08:46:15,575 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-25 08:46:15,579 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-25 08:46:15,582 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-25 08:46:15,582 INFO L275 PluginConnector]: CDTParser initialized [2019-11-25 08:46:15,583 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/../../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2019-11-25 08:46:15,645 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/data/2e986f44c/8c766e9f12f749dba41c770e41beb789/FLAGa38798119 [2019-11-25 08:46:16,089 INFO L306 CDTParser]: Found 1 translation units. [2019-11-25 08:46:16,089 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2019-11-25 08:46:16,101 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/data/2e986f44c/8c766e9f12f749dba41c770e41beb789/FLAGa38798119 [2019-11-25 08:46:16,357 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/data/2e986f44c/8c766e9f12f749dba41c770e41beb789 [2019-11-25 08:46:16,359 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-25 08:46:16,361 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-25 08:46:16,361 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:16,362 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-25 08:46:16,366 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-25 08:46:16,366 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,368 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@26cab6c9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16, skipping insertion in model container [2019-11-25 08:46:16,369 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,374 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-25 08:46:16,408 INFO L179 MainTranslator]: Built tables and reachable declarations [2019-11-25 08:46:16,729 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:16,734 INFO L201 MainTranslator]: Completed pre-run [2019-11-25 08:46:16,815 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-25 08:46:16,834 INFO L205 MainTranslator]: Completed translation [2019-11-25 08:46:16,835 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16 WrapperNode [2019-11-25 08:46:16,835 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-25 08:46:16,836 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:16,836 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-25 08:46:16,836 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-25 08:46:16,842 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,852 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,897 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-25 08:46:16,898 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-25 08:46:16,898 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-25 08:46:16,898 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-25 08:46:16,906 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,907 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,910 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,911 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,950 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,963 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... [2019-11-25 08:46:16,970 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-25 08:46:16,972 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-25 08:46:16,973 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-25 08:46:16,973 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-25 08:46:16,974 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/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 [2019-11-25 08:46:17,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-25 08:46:17,052 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-25 08:46:17,950 INFO L279 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-25 08:46:17,950 INFO L284 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-25 08:46:17,952 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:17 BoogieIcfgContainer [2019-11-25 08:46:17,952 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-25 08:46:17,952 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-25 08:46:17,952 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-25 08:46:17,955 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-25 08:46:17,956 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:17,956 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 25.11 08:46:16" (1/3) ... [2019-11-25 08:46:17,957 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b513ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:46:17, skipping insertion in model container [2019-11-25 08:46:17,957 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:17,958 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.11 08:46:16" (2/3) ... [2019-11-25 08:46:17,958 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2b513ad9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 25.11 08:46:17, skipping insertion in model container [2019-11-25 08:46:17,959 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-25 08:46:17,959 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:17" (3/3) ... [2019-11-25 08:46:17,960 INFO L371 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2019-11-25 08:46:17,998 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-25 08:46:17,999 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-25 08:46:17,999 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-25 08:46:17,999 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-25 08:46:17,999 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-25 08:46:17,999 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-25 08:46:18,000 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-25 08:46:18,000 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-25 08:46:18,017 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-25 08:46:18,057 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2019-11-25 08:46:18,058 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:18,058 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:18,066 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:46:18,066 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:18,066 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-25 08:46:18,066 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-25 08:46:18,072 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2019-11-25 08:46:18,072 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:18,072 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:18,073 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-25 08:46:18,073 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-25 08:46:18,079 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 10#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 107#L24-2true [2019-11-25 08:46:18,079 INFO L796 eck$LassoCheckResult]: Loop: 107#L24-2true goto; 31#L557true 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; 47#L39true assume !(0 == main_~q~0); 21#L59true assume !(1 == main_~q~0); 103#L159true assume !(2 == main_~q~0); 68#L259true assume !(3 == main_~q~0); 27#L359true assume !(4 == main_~q~0); 101#L459true assume !(5 == main_~q~0); 107#L24-2true [2019-11-25 08:46:18,084 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,084 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-25 08:46:18,091 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,091 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1851729521] [2019-11-25 08:46:18,091 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,182 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:18,183 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,183 INFO L82 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2019-11-25 08:46:18,183 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,183 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446475820] [2019-11-25 08:46:18,183 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,199 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:18,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,201 INFO L82 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2019-11-25 08:46:18,201 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,201 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [438198886] [2019-11-25 08:46:18,201 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-25 08:46:18,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-11-25 08:46:18,254 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [438198886] [2019-11-25 08:46:18,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-25 08:46:18,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-25 08:46:18,256 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1587495867] [2019-11-25 08:46:18,423 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-25 08:46:18,437 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-25 08:46:18,438 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-25 08:46:18,451 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2019-11-25 08:46:18,639 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-25 08:46:18,639 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2019-11-25 08:46:18,640 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-25 08:46:18,642 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2019-11-25 08:46:18,646 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:46:18,660 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2019-11-25 08:46:18,661 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2019-11-25 08:46:18,663 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2019-11-25 08:46:18,663 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2019-11-25 08:46:18,664 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-25 08:46:18,665 INFO L688 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-25 08:46:18,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2019-11-25 08:46:18,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-11-25 08:46:18,700 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-25 08:46:18,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2019-11-25 08:46:18,705 INFO L711 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-25 08:46:18,706 INFO L591 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-25 08:46:18,706 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-25 08:46:18,706 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2019-11-25 08:46:18,713 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-25 08:46:18,713 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-25 08:46:18,713 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-25 08:46:18,714 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-25 08:46:18,714 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-25 08:46:18,715 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 253#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 254#L24-2 goto; 247#L557 [2019-11-25 08:46:18,715 INFO L796 eck$LassoCheckResult]: Loop: 247#L557 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; 304#L39 assume 0 == main_~q~0; 245#L40 assume !(0 != main_#t~nondet9);havoc main_#t~nondet9; 247#L557 [2019-11-25 08:46:18,715 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,715 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-11-25 08:46:18,716 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,716 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [953263375] [2019-11-25 08:46:18,716 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,744 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:18,744 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,744 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2019-11-25 08:46:18,745 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,745 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378045922] [2019-11-25 08:46:18,745 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,755 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:18,756 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-25 08:46:18,756 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2019-11-25 08:46:18,756 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-25 08:46:18,756 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [425058155] [2019-11-25 08:46:18,756 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-25 08:46:18,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-25 08:46:18,782 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-25 08:46:18,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 25.11 08:46:18 BoogieIcfgContainer [2019-11-25 08:46:18,950 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-25 08:46:18,951 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-25 08:46:18,951 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-25 08:46:18,951 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-25 08:46:18,952 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.11 08:46:17" (3/4) ... [2019-11-25 08:46:18,955 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-25 08:46:19,021 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_e0df67bf-5f05-4692-a32d-0d040937bc16/bin/uautomizer/witness.graphml [2019-11-25 08:46:19,021 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-25 08:46:19,023 INFO L168 Benchmark]: Toolchain (without parser) took 2662.20 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 944.7 MB in the beginning and 981.4 MB in the end (delta: -36.6 MB). Peak memory consumption was 92.9 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,025 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:19,025 INFO L168 Benchmark]: CACSL2BoogieTranslator took 474.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,025 INFO L168 Benchmark]: Boogie Procedure Inliner took 61.38 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,026 INFO L168 Benchmark]: Boogie Preprocessor took 73.89 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,026 INFO L168 Benchmark]: RCFGBuilder took 980.15 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,027 INFO L168 Benchmark]: BuchiAutomizer took 997.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. [2019-11-25 08:46:19,027 INFO L168 Benchmark]: Witness Printer took 70.61 ms. Allocated memory is still 1.2 GB. Free memory is still 981.4 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-11-25 08:46:19,029 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 1.0 GB. Free memory is still 962.2 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 474.18 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 129.5 MB). Free memory was 939.3 MB in the beginning and 1.1 GB in the end (delta: -178.1 MB). Peak memory consumption was 18.0 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 61.38 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.89 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: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * RCFGBuilder took 980.15 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: 54.6 MB). Peak memory consumption was 54.6 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 997.52 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 981.4 MB in the end (delta: 70.8 MB). Peak memory consumption was 70.8 MB. Max. memory is 11.5 GB. * Witness Printer took 70.61 ms. Allocated memory is still 1.2 GB. Free memory is still 981.4 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 80 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.9s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.5s. Construction of modules took 0.1s. 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 80 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 197 SDtfs, 4 SDslu, 151 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@5d001219=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a81f8dd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c09410=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2dc63348=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1eed5c31=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a71c915=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1ca992d0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@100b050=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5c4deab3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@792fb6f7=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@3b899fe3=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a1391ac=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5d980590=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a4a1d85=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b55e6bc=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@429a722c=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a77e404=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41c7a72=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74d07593=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fbde4ae=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a144d27=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f5ec507=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32208b9f=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b3819ce=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c174bcf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bda7ce3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1048c3d5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50a521c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62227725=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2a176333=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@37bcbe5f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2bfc8793=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f844a09=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28f51919=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1936fe76=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19aee907=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b29098d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@193508f1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56bad45b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2b930887=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] unsigned int this_expect = 0; [L21] unsigned 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(); [L39] COND TRUE q == 0 [L40] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...