./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 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_1-3.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 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 0.1.25-f470102 [2019-11-28 20:47:25,278 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-11-28 20:47:25,281 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-11-28 20:47:25,300 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-11-28 20:47:25,300 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-11-28 20:47:25,302 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-11-28 20:47:25,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-11-28 20:47:25,317 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-11-28 20:47:25,319 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-11-28 20:47:25,322 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-11-28 20:47:25,323 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-11-28 20:47:25,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-11-28 20:47:25,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-11-28 20:47:25,330 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-11-28 20:47:25,332 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-11-28 20:47:25,334 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-11-28 20:47:25,336 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-11-28 20:47:25,339 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-11-28 20:47:25,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-11-28 20:47:25,348 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-11-28 20:47:25,352 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-11-28 20:47:25,356 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-11-28 20:47:25,358 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-11-28 20:47:25,361 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-11-28 20:47:25,365 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-11-28 20:47:25,366 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-11-28 20:47:25,366 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-11-28 20:47:25,368 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-11-28 20:47:25,369 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-11-28 20:47:25,370 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-11-28 20:47:25,370 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-11-28 20:47:25,371 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-11-28 20:47:25,372 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-11-28 20:47:25,373 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-11-28 20:47:25,375 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-11-28 20:47:25,375 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-11-28 20:47:25,376 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-11-28 20:47:25,377 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-11-28 20:47:25,377 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-11-28 20:47:25,379 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-11-28 20:47:25,381 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-11-28 20:47:25,382 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-11-28 20:47:25,407 INFO L113 SettingsManager]: Loading preferences was successful [2019-11-28 20:47:25,407 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-11-28 20:47:25,409 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-11-28 20:47:25,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-11-28 20:47:25,410 INFO L138 SettingsManager]: * Use SBE=true [2019-11-28 20:47:25,410 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-11-28 20:47:25,411 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-11-28 20:47:25,411 INFO L138 SettingsManager]: * Use old map elimination=false [2019-11-28 20:47:25,411 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-11-28 20:47:25,411 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-11-28 20:47:25,413 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-11-28 20:47:25,413 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-11-28 20:47:25,413 INFO L138 SettingsManager]: * sizeof long=4 [2019-11-28 20:47:25,414 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-11-28 20:47:25,414 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-11-28 20:47:25,414 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-11-28 20:47:25,415 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-11-28 20:47:25,415 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-11-28 20:47:25,415 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-11-28 20:47:25,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-11-28 20:47:25,416 INFO L138 SettingsManager]: * sizeof long double=12 [2019-11-28 20:47:25,416 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-11-28 20:47:25,416 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-11-28 20:47:25,417 INFO L138 SettingsManager]: * Use constant arrays=true [2019-11-28 20:47:25,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-11-28 20:47:25,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-11-28 20:47:25,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-11-28 20:47:25,418 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-11-28 20:47:25,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-11-28 20:47:25,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-11-28 20:47:25,419 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-11-28 20:47:25,420 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-11-28 20:47:25,422 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-11-28 20:47:25,422 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 -> 45f0d0ab6d17adbe7cd7f36bcd9ec097795f4c36 [2019-11-28 20:47:25,739 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-11-28 20:47:25,757 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-11-28 20:47:25,760 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-11-28 20:47:25,762 INFO L271 PluginConnector]: Initializing CDTParser... [2019-11-28 20:47:25,762 INFO L275 PluginConnector]: CDTParser initialized [2019-11-28 20:47:25,763 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2019-11-28 20:47:25,838 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca07aafd/ff4b278966844a5f9eac14b3ca212838/FLAG38f91a183 [2019-11-28 20:47:26,396 INFO L306 CDTParser]: Found 1 translation units. [2019-11-28 20:47:26,397 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2019-11-28 20:47:26,409 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca07aafd/ff4b278966844a5f9eac14b3ca212838/FLAG38f91a183 [2019-11-28 20:47:26,638 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/dca07aafd/ff4b278966844a5f9eac14b3ca212838 [2019-11-28 20:47:26,642 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-11-28 20:47:26,643 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-11-28 20:47:26,645 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-11-28 20:47:26,645 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-11-28 20:47:26,649 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-11-28 20:47:26,650 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:47:26" (1/1) ... [2019-11-28 20:47:26,653 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@36e4844a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:26, skipping insertion in model container [2019-11-28 20:47:26,654 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.11 08:47:26" (1/1) ... [2019-11-28 20:47:26,662 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-11-28 20:47:26,707 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-11-28 20:47:27,033 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:47:27,038 INFO L203 MainTranslator]: Completed pre-run [2019-11-28 20:47:27,178 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-11-28 20:47:27,198 INFO L208 MainTranslator]: Completed translation [2019-11-28 20:47:27,199 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27 WrapperNode [2019-11-28 20:47:27,201 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-11-28 20:47:27,202 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-11-28 20:47:27,202 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-11-28 20:47:27,202 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-11-28 20:47:27,212 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,237 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,291 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-11-28 20:47:27,292 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-11-28 20:47:27,292 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-11-28 20:47:27,292 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-11-28 20:47:27,300 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,301 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,305 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,305 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,321 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,338 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,352 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (1/1) ... [2019-11-28 20:47:27,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-11-28 20:47:27,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-11-28 20:47:27,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-11-28 20:47:27,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-11-28 20:47:27,366 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (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 20:47:27,436 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-11-28 20:47:27,436 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-11-28 20:47:28,503 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-11-28 20:47:28,504 INFO L287 CfgBuilder]: Removed 6 assume(true) statements. [2019-11-28 20:47:28,505 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:28 BoogieIcfgContainer [2019-11-28 20:47:28,505 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-11-28 20:47:28,507 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-11-28 20:47:28,507 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-11-28 20:47:28,511 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-11-28 20:47:28,512 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:28,513 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 28.11 08:47:26" (1/3) ... [2019-11-28 20:47:28,515 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22b8da8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:47:28, skipping insertion in model container [2019-11-28 20:47:28,515 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:28,515 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.11 08:47:27" (2/3) ... [2019-11-28 20:47:28,516 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@22b8da8f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 28.11 08:47:28, skipping insertion in model container [2019-11-28 20:47:28,516 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-11-28 20:47:28,517 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:28" (3/3) ... [2019-11-28 20:47:28,519 INFO L371 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2019-11-28 20:47:28,573 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-11-28 20:47:28,574 INFO L357 BuchiCegarLoop]: Hoare is false [2019-11-28 20:47:28,574 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-11-28 20:47:28,574 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-11-28 20:47:28,575 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-11-28 20:47:28,575 INFO L361 BuchiCegarLoop]: Difference is false [2019-11-28 20:47:28,575 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-11-28 20:47:28,575 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-11-28 20:47:28,597 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 20:47:28,626 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2019-11-28 20:47:28,627 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:28,627 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:28,635 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:47:28,635 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:47:28,636 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-11-28 20:47:28,636 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 108 states. [2019-11-28 20:47:28,644 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2019-11-28 20:47:28,645 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:28,645 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:28,645 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-11-28 20:47:28,646 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2019-11-28 20:47:28,652 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 10#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 107#L24-2true [2019-11-28 20:47:28,652 INFO L796 eck$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 [2019-11-28 20:47:28,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:28,659 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-11-28 20:47:28,667 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:28,667 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1955377204] [2019-11-28 20:47:28,668 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:28,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:28,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:28,781 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:28,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:28,783 INFO L82 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2019-11-28 20:47:28,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:28,784 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [927884045] [2019-11-28 20:47:28,784 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:28,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:28,804 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:28,806 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:28,807 INFO L82 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2019-11-28 20:47:28,807 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:28,808 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [770156577] [2019-11-28 20:47:28,808 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:28,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-11-28 20:47:28,880 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 20:47:28,881 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [770156577] [2019-11-28 20:47:28,882 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-11-28 20:47:28,882 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-11-28 20:47:28,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1157366983] [2019-11-28 20:47:29,038 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-11-28 20:47:29,059 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-11-28 20:47:29,060 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-11-28 20:47:29,062 INFO L87 Difference]: Start difference. First operand 108 states. Second operand 3 states. [2019-11-28 20:47:29,270 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-11-28 20:47:29,271 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2019-11-28 20:47:29,271 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-11-28 20:47:29,274 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2019-11-28 20:47:29,288 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-28 20:47:29,299 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2019-11-28 20:47:29,300 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2019-11-28 20:47:29,303 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2019-11-28 20:47:29,304 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2019-11-28 20:47:29,305 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-11-28 20:47:29,305 INFO L688 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-28 20:47:29,326 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2019-11-28 20:47:29,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2019-11-28 20:47:29,350 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2019-11-28 20:47:29,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2019-11-28 20:47:29,356 INFO L711 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-28 20:47:29,357 INFO L591 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2019-11-28 20:47:29,357 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-11-28 20:47:29,357 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2019-11-28 20:47:29,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2019-11-28 20:47:29,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-11-28 20:47:29,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-11-28 20:47:29,365 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-11-28 20:47:29,366 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-11-28 20:47:29,366 INFO L794 eck$LassoCheckResult]: Stem: 291#ULTIMATE.startENTRY ~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 253#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_#t~nondet29, main_#t~nondet30, main_#t~nondet31, main_#t~nondet32, main_#t~nondet33, main_#t~nondet34, main_#t~nondet35, main_#t~nondet36, main_#t~nondet37, main_#t~nondet38, main_#t~nondet39, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~P5~0, main_~P6~0, main_~P7~0, main_~P8~0, main_~P9~0, main_~q~0, main_~method_id~0, main_~this_expect~0, main_~this_buffer_empty~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_expect~0 := 0;main_~this_buffer_empty~0 := 0; 254#L24-2 goto; 247#L557 [2019-11-28 20:47:29,366 INFO L796 eck$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 [2019-11-28 20:47:29,367 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:29,367 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-11-28 20:47:29,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:29,368 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1370745291] [2019-11-28 20:47:29,368 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,395 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:29,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:29,397 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2019-11-28 20:47:29,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:29,398 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [36175975] [2019-11-28 20:47:29,398 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:29,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,430 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:29,430 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-11-28 20:47:29,431 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2019-11-28 20:47:29,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-11-28 20:47:29,432 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2051662628] [2019-11-28 20:47:29,432 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-11-28 20:47:29,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-11-28 20:47:29,466 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-11-28 20:47:29,615 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 28.11 08:47:29 BoogieIcfgContainer [2019-11-28 20:47:29,615 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-11-28 20:47:29,616 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-11-28 20:47:29,616 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-11-28 20:47:29,617 INFO L275 PluginConnector]: Witness Printer initialized [2019-11-28 20:47:29,617 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.11 08:47:28" (3/4) ... [2019-11-28 20:47:29,621 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-11-28 20:47:29,692 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2019-11-28 20:47:29,693 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-11-28 20:47:29,695 INFO L168 Benchmark]: Toolchain (without parser) took 3051.17 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 961.7 MB in the beginning and 998.2 MB in the end (delta: -36.5 MB). Peak memory consumption was 111.9 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,696 INFO L168 Benchmark]: CDTParser took 0.26 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 20:47:29,696 INFO L168 Benchmark]: CACSL2BoogieTranslator took 556.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,697 INFO L168 Benchmark]: Boogie Procedure Inliner took 89.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,698 INFO L168 Benchmark]: Boogie Preprocessor took 73.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,699 INFO L168 Benchmark]: RCFGBuilder took 1140.46 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: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,699 INFO L168 Benchmark]: BuchiAutomizer took 1108.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,700 INFO L168 Benchmark]: Witness Printer took 76.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 998.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2019-11-28 20:47:29,704 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 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 556.80 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 148.4 MB). Free memory was 961.7 MB in the beginning and 1.1 GB in the end (delta: -176.1 MB). Peak memory consumption was 26.3 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 89.27 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 73.10 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 8.3 MB). Peak memory consumption was 8.3 MB. Max. memory is 11.5 GB. * RCFGBuilder took 1140.46 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: 51.7 MB). Peak memory consumption was 51.7 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1108.95 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 66.3 MB). Peak memory consumption was 66.3 MB. Max. memory is 11.5 GB. * Witness Printer took 76.68 ms. Allocated memory is still 1.2 GB. Free memory was 1.0 GB in the beginning and 998.2 MB in the end (delta: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 80 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.0s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. Construction of modules took 0.1s. Büchi inclusion checks took 0.1s. 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@205e02f5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a731c21=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29bf5bc1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@515f51ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@366cea8c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57672657=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28838cf6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4fe6efcf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1fff056c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1d6f80a6=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@72790dc2=11, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72480158=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@67600c4d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22096f88=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72bc660f=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74ae93f6=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@65fc1551=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4dc79319=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@444a3ef2=13, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@63e483af=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ee31fce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@512af7d1=12, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e6fc766=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50eeecf8=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@287e7bb8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e78fd82=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57ff52b5=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@522c8386=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@23828d81=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@539eb50=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@4d50e29=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2facfd3c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e455acf=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44d06c54=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4bdc69ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6602aaad=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10fe9ece=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3cf66ebe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@747b3101=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20bc9e63=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...