./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/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 0db572bf30caf92f48b0dba5a9cc25cec23b8ac8 ................................................................................................................................................................................................................................................................................................................................................................. 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 0.2.0-5485861 [2020-10-26 04:44:17,275 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:44:17,278 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:44:17,314 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:44:17,315 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:44:17,316 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:44:17,318 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:44:17,320 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:44:17,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:44:17,324 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:44:17,325 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:44:17,327 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:44:17,328 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:44:17,329 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:44:17,331 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:44:17,332 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:44:17,334 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:44:17,335 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:44:17,337 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:44:17,340 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:44:17,342 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:44:17,343 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:44:17,345 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:44:17,346 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:44:17,349 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:44:17,349 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:44:17,350 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:44:17,351 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:44:17,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:44:17,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:44:17,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:44:17,355 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:44:17,356 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:44:17,357 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:44:17,358 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:44:17,370 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:44:17,372 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:44:17,372 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:44:17,373 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:44:17,374 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:44:17,375 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:44:17,377 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:44:17,408 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:44:17,408 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:44:17,410 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:44:17,410 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:44:17,411 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:44:17,411 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:44:17,411 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:44:17,411 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:44:17,412 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:44:17,412 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:44:17,412 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:44:17,412 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:44:17,413 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:44:17,413 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:44:17,413 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:44:17,413 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:44:17,414 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:44:17,414 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:44:17,414 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:44:17,414 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:44:17,415 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:44:17,415 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:44:17,415 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:44:17,415 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:44:17,416 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:44:17,416 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:44:17,416 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:44:17,416 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:44:17,417 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:44:17,417 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:44:17,417 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:44:17,418 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:44:17,419 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:44:17,419 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db572bf30caf92f48b0dba5a9cc25cec23b8ac8 [2020-10-26 04:44:17,804 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:44:17,833 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:44:17,837 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:44:17,838 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:44:17,839 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:44:17,840 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2020-10-26 04:44:17,916 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab8439d3/b1fe2eaba7f946019d34715ea0495cb8/FLAGe9e0aac57 [2020-10-26 04:44:18,607 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:44:18,608 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2020-10-26 04:44:18,627 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab8439d3/b1fe2eaba7f946019d34715ea0495cb8/FLAGe9e0aac57 [2020-10-26 04:44:18,935 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7ab8439d3/b1fe2eaba7f946019d34715ea0495cb8 [2020-10-26 04:44:18,941 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:44:18,951 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:44:18,954 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:44:18,954 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:44:18,959 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:44:18,961 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:44:18" (1/1) ... [2020-10-26 04:44:18,969 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4b741097 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:18, skipping insertion in model container [2020-10-26 04:44:18,970 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:44:18" (1/1) ... [2020-10-26 04:44:18,979 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:44:19,080 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:44:19,447 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:44:19,460 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:44:19,551 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:44:19,569 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:44:19,570 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19 WrapperNode [2020-10-26 04:44:19,570 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:44:19,572 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:44:19,573 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:44:19,573 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:44:19,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,598 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,654 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:44:19,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:44:19,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:44:19,656 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:44:19,667 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,668 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,673 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,673 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,701 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,710 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,716 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (1/1) ... [2020-10-26 04:44:19,723 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:44:19,725 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:44:19,725 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:44:19,725 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:44:19,727 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (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 [2020-10-26 04:44:19,823 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:44:19,823 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:44:19,824 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:44:19,825 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:44:20,909 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:44:20,909 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-10-26 04:44:20,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:20 BoogieIcfgContainer [2020-10-26 04:44:20,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:44:20,913 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:44:20,913 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:44:20,917 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:44:20,918 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:20,918 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:44:18" (1/3) ... [2020-10-26 04:44:20,919 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a7aee38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:44:20, skipping insertion in model container [2020-10-26 04:44:20,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:20,920 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:19" (2/3) ... [2020-10-26 04:44:20,920 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2a7aee38 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:44:20, skipping insertion in model container [2020-10-26 04:44:20,920 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:20,921 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:20" (3/3) ... [2020-10-26 04:44:20,922 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2020-10-26 04:44:20,973 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:44:20,973 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:44:20,974 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:44:20,974 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:44:20,974 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:44:20,974 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:44:20,974 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:44:20,975 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:44:20,994 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-10-26 04:44:21,032 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2020-10-26 04:44:21,033 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:21,033 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:21,043 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:44:21,043 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:44:21,043 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:44:21,044 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-10-26 04:44:21,052 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2020-10-26 04:44:21,052 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:21,052 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:21,053 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:44:21,053 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-10-26 04:44:21,061 INFO L794 eck$LassoCheckResult]: Stem: 78#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_Protocol~0 := 1;~m_msg_2~0 := 2;~m_recv_ack_2~0 := 3;~m_msg_1_1~0 := 4;~m_msg_1_2~0 := 5;~m_recv_ack_1_1~0 := 6;~m_recv_ack_1_2~0 := 7; 9#L-1true havoc main_#res;havoc main_#t~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_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, 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; 28#L26-2true [2020-10-26 04:44:21,062 INFO L796 eck$LassoCheckResult]: Loop: 28#L26-2true goto; 71#L559true assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 76#L41true assume !(0 == main_~q~0); 48#L61true assume !(1 == main_~q~0); 23#L161true assume !(2 == main_~q~0); 87#L261true assume !(3 == main_~q~0); 53#L361true assume !(4 == main_~q~0); 17#L461true assume !(5 == main_~q~0); 28#L26-2true [2020-10-26 04:44:21,069 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,069 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:44:21,079 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,080 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1927722979] [2020-10-26 04:44:21,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,189 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,209 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,234 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:21,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,236 INFO L82 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2020-10-26 04:44:21,237 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,237 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1867973782] [2020-10-26 04:44:21,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,246 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,253 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,257 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:21,260 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,260 INFO L82 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2020-10-26 04:44:21,260 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,261 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1449378556] [2020-10-26 04:44:21,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:44:21,338 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:44:21,338 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1449378556] [2020-10-26 04:44:21,341 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:44:21,341 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:44:21,342 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133457148] [2020-10-26 04:44:21,531 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:44:21,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:44:21,548 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:44:21,550 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-10-26 04:44:21,690 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:44:21,690 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2020-10-26 04:44:21,691 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:44:21,693 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2020-10-26 04:44:21,698 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-10-26 04:44:21,705 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2020-10-26 04:44:21,706 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2020-10-26 04:44:21,707 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2020-10-26 04:44:21,708 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2020-10-26 04:44:21,709 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:44:21,709 INFO L691 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-10-26 04:44:21,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2020-10-26 04:44:21,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-10-26 04:44:21,745 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-10-26 04:44:21,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2020-10-26 04:44:21,748 INFO L714 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-10-26 04:44:21,748 INFO L594 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-10-26 04:44:21,748 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:44:21,749 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2020-10-26 04:44:21,751 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-10-26 04:44:21,751 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:21,751 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:21,752 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:44:21,752 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:44:21,752 INFO L794 eck$LassoCheckResult]: Stem: 282#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(16);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~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; 250#L-1 havoc main_#res;havoc 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_#t~nondet40, main_#t~nondet41, main_#t~nondet42, main_#t~nondet43, main_#t~nondet44, main_#t~nondet45, main_#t~nondet46, 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; 251#L26-2 goto; 261#L559 [2020-10-26 04:44:21,753 INFO L796 eck$LassoCheckResult]: Loop: 261#L559 assume !false;main_~P1~0 := main_#t~nondet7;havoc main_#t~nondet7;main_~P2~0 := main_#t~nondet8;havoc main_#t~nondet8;main_~P3~0 := main_#t~nondet9;havoc main_#t~nondet9;main_~P4~0 := main_#t~nondet10;havoc main_#t~nondet10;main_~P5~0 := main_#t~nondet11;havoc main_#t~nondet11;main_~P6~0 := main_#t~nondet12;havoc main_#t~nondet12;main_~P7~0 := main_#t~nondet13;havoc main_#t~nondet13;main_~P8~0 := main_#t~nondet14;havoc main_#t~nondet14;main_~P9~0 := main_#t~nondet15;havoc main_#t~nondet15; 262#L41 assume 0 == main_~q~0; 276#L42 assume !(0 != main_#t~nondet16);havoc main_#t~nondet16; 261#L559 [2020-10-26 04:44:21,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,754 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-26 04:44:21,754 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [224556953] [2020-10-26 04:44:21,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,771 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,786 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,792 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:21,792 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,793 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-10-26 04:44:21,793 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,793 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [91441455] [2020-10-26 04:44:21,794 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,800 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,804 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,808 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:21,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:21,809 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-10-26 04:44:21,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:21,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785412354] [2020-10-26 04:44:21,810 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:21,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,825 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:21,840 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:21,847 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:22,177 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-10-26 04:44:22,316 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-10-26 04:44:22,373 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:44:22 BoogieIcfgContainer [2020-10-26 04:44:22,373 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:44:22,377 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:44:22,377 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:44:22,378 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:44:22,378 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:20" (3/4) ... [2020-10-26 04:44:22,381 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-26 04:44:22,455 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:44:22,455 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:44:22,458 INFO L168 Benchmark]: Toolchain (without parser) took 3512.77 ms. Allocated memory was 48.2 MB in the beginning and 71.3 MB in the end (delta: 23.1 MB). Free memory was 24.5 MB in the beginning and 46.0 MB in the end (delta: -21.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,459 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 39.8 MB. Free memory is still 23.2 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:44:22,460 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.42 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 27.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 82.67 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 22.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,462 INFO L168 Benchmark]: Boogie Preprocessor took 68.07 ms. Allocated memory is still 48.2 MB. Free memory was 22.8 MB in the beginning and 28.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,464 INFO L168 Benchmark]: RCFGBuilder took 1187.26 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 29.0 MB in the end (delta: -391.2 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,465 INFO L168 Benchmark]: BuchiAutomizer took 1460.54 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 48.1 MB in the end (delta: -19.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,466 INFO L168 Benchmark]: Witness Printer took 79.42 ms. Allocated memory is still 71.3 MB. Free memory was 48.1 MB in the beginning and 46.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:22,475 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 39.8 MB. Free memory is still 23.2 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 617.42 ms. Allocated memory is still 48.2 MB. Free memory was 23.9 MB in the beginning and 27.4 MB in the end (delta: -3.4 MB). Peak memory consumption was 7.2 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 82.67 ms. Allocated memory is still 48.2 MB. Free memory was 27.4 MB in the beginning and 22.8 MB in the end (delta: 4.6 MB). Peak memory consumption was 6.3 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 68.07 ms. Allocated memory is still 48.2 MB. Free memory was 22.8 MB in the beginning and 28.6 MB in the end (delta: -5.8 MB). Peak memory consumption was 3.6 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1187.26 ms. Allocated memory was 48.2 MB in the beginning and 58.7 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 29.0 MB in the end (delta: -391.2 kB). Peak memory consumption was 16.8 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1460.54 ms. Allocated memory was 58.7 MB in the beginning and 71.3 MB in the end (delta: 12.6 MB). Free memory was 29.0 MB in the beginning and 48.1 MB in the end (delta: -19.2 MB). Peak memory consumption was 18.7 MB. Max. memory is 16.1 GB. * Witness Printer took 79.42 ms. Allocated memory is still 71.3 MB. Free memory was 48.1 MB in the beginning and 46.0 MB in the end (delta: 2.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 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 1.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.0s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 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, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 26]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {NULL=1} State at position 1 is {NULL=0, m_Protocol=1, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f76b454=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@300e8062=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bbdb37f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5f329dac=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@73a287d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@57f1bd03=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2546f8dd=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@27f86276=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6de6b6c9=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29af2687=25, NULL=0, NULL=0, P8=19, P6=20, P4=18, P2=26, this_buffer_empty=0, this_expect=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@269e1a4c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75b052ae=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22dca781=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bb1e827=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@680e3f52=0, m_recv_ack_1_2=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6dabd967=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1af9d35e=0, m_msg_1_1=4, NULL=2, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4251acd4=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f854b1d=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f6dba31=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@51fae57b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@704e952d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3172711=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7f27f914=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7e75a110=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1bf99849=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@79f01ab6=0, NULL=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d930f58=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@47069054=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7a92ef9=0, NULL=0, P9=25, P7=22, NULL=4, P5=23, P3=21, P1=24, m_msg_2=2, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@181cac9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a15f8a8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c3a5857=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6be94f96=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f5b9e33=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@259b3af5=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4679f776=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4921baf2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c94dbc6=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6222c6e3=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 26]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_Protocol = 1; [L8] int m_msg_2 = 2; [L9] int m_recv_ack_2 = 3; [L10] int m_msg_1_1 = 4; [L11] int m_msg_1_2 = 5; [L12] int m_recv_ack_1_1 = 6; [L13] int m_recv_ack_1_2 = 7; [L18] int q = 0; [L19] int method_id; [L22] unsigned int this_expect = 0; [L23] unsigned int this_buffer_empty = 0; Loop: [L26] COND TRUE 1 [L29] int P1=__VERIFIER_nondet_int(); [L30] int P2=__VERIFIER_nondet_int(); [L31] int P3=__VERIFIER_nondet_int(); [L32] int P4=__VERIFIER_nondet_int(); [L33] int P5=__VERIFIER_nondet_int(); [L34] int P6=__VERIFIER_nondet_int(); [L35] int P7=__VERIFIER_nondet_int(); [L36] int P8=__VERIFIER_nondet_int(); [L37] int P9=__VERIFIER_nondet_int(); [L41] COND TRUE q == 0 [L42] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...