./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/psyco/psyco_abp_1-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 20ed64ec 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_1-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8e1064ca8851049d7703c5646c80faf613ee8a93 ......................................................................................................................................................................................................................................................................................................................................................................... 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 0.2.1-dev-20ed64e [2021-08-27 15:14:12,282 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 15:14:12,284 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 15:14:12,310 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 15:14:12,310 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 15:14:12,311 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 15:14:12,312 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 15:14:12,314 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 15:14:12,315 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 15:14:12,315 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 15:14:12,316 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 15:14:12,317 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 15:14:12,317 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 15:14:12,318 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 15:14:12,319 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 15:14:12,320 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 15:14:12,320 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 15:14:12,321 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 15:14:12,322 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 15:14:12,324 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 15:14:12,325 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 15:14:12,325 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 15:14:12,326 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 15:14:12,327 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 15:14:12,329 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 15:14:12,329 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 15:14:12,329 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 15:14:12,330 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 15:14:12,330 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 15:14:12,341 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 15:14:12,341 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 15:14:12,341 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 15:14:12,342 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 15:14:12,342 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 15:14:12,343 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 15:14:12,343 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 15:14:12,344 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 15:14:12,344 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 15:14:12,344 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 15:14:12,345 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 15:14:12,345 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 15:14:12,347 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-08-27 15:14:12,370 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 15:14:12,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 15:14:12,370 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 15:14:12,370 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 15:14:12,371 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 15:14:12,371 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Use old map elimination=false [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-08-27 15:14:12,371 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-08-27 15:14:12,372 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 15:14:12,372 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 15:14:12,372 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 15:14:12,372 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 15:14:12,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 15:14:12,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-08-27 15:14:12,377 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-08-27 15:14:12,378 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 15:14:12,378 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-08-27 15:14:12,378 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 15:14:12,378 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 15:14:12,378 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 15:14:12,378 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 15:14:12,379 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 15:14:12,380 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-08-27 15:14:12,380 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8e1064ca8851049d7703c5646c80faf613ee8a93 [2021-08-27 15:14:12,598 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 15:14:12,619 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 15:14:12,623 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 15:14:12,623 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 15:14:12,624 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 15:14:12,625 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-08-27 15:14:12,672 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eccad2dd/5d9cf73ebc3c4cd7b2bf53b5616d170e/FLAGc1d7b1fe5 [2021-08-27 15:14:13,060 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 15:14:13,061 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c [2021-08-27 15:14:13,073 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eccad2dd/5d9cf73ebc3c4cd7b2bf53b5616d170e/FLAGc1d7b1fe5 [2021-08-27 15:14:13,082 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/4eccad2dd/5d9cf73ebc3c4cd7b2bf53b5616d170e [2021-08-27 15:14:13,086 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 15:14:13,088 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-08-27 15:14:13,093 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:13,093 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 15:14:13,095 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 15:14:13,095 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,096 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@630eda05 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13, skipping insertion in model container [2021-08-27 15:14:13,096 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,100 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 15:14:13,131 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 15:14:13,290 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-08-27 15:14:13,293 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:13,300 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 15:14:13,347 WARN L228 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_abp_1-1.c[24818,24831] [2021-08-27 15:14:13,349 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 15:14:13,362 INFO L208 MainTranslator]: Completed translation [2021-08-27 15:14:13,362 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13 WrapperNode [2021-08-27 15:14:13,362 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 15:14:13,363 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:13,363 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-08-27 15:14:13,363 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-08-27 15:14:13,367 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,378 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,435 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-08-27 15:14:13,438 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 15:14:13,438 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 15:14:13,438 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 15:14:13,444 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,444 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,456 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,456 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,467 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,487 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,493 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 15:14:13,495 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 15:14:13,496 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 15:14:13,496 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 15:14:13,497 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (1/1) ... [2021-08-27 15:14:13,502 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-08-27 15:14:13,506 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 15:14:13,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2021-08-27 15:14:13,544 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2021-08-27 15:14:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 15:14:13,558 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 15:14:13,558 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-08-27 15:14:13,559 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 15:14:14,238 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 15:14:14,238 INFO L299 CfgBuilder]: Removed 6 assume(true) statements. [2021-08-27 15:14:14,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:14 BoogieIcfgContainer [2021-08-27 15:14:14,240 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 15:14:14,240 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-08-27 15:14:14,241 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-08-27 15:14:14,243 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-08-27 15:14:14,243 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:14,243 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 27.08 03:14:13" (1/3) ... [2021-08-27 15:14:14,244 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ba0e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:14, skipping insertion in model container [2021-08-27 15:14:14,244 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:14,244 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 03:14:13" (2/3) ... [2021-08-27 15:14:14,245 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@8ba0e79 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 27.08 03:14:14, skipping insertion in model container [2021-08-27 15:14:14,245 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-08-27 15:14:14,245 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:14" (3/3) ... [2021-08-27 15:14:14,246 INFO L389 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-1.c [2021-08-27 15:14:14,273 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-08-27 15:14:14,273 INFO L360 BuchiCegarLoop]: Hoare is false [2021-08-27 15:14:14,273 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-08-27 15:14:14,274 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-08-27 15:14:14,274 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-08-27 15:14:14,274 INFO L364 BuchiCegarLoop]: Difference is false [2021-08-27 15:14:14,274 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-08-27 15:14:14,274 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-08-27 15:14:14,285 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:14,303 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-08-27 15:14:14,303 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:14,303 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:14,308 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:14,308 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:14:14,308 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-08-27 15:14:14,309 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:14,313 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 76 [2021-08-27 15:14:14,313 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:14,313 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:14,314 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-08-27 15:14:14,314 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 15:14:14,318 INFO L791 eck$LassoCheckResult]: Stem: 97#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; 28#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; 46#L26-2true [2021-08-27 15:14:14,318 INFO L793 eck$LassoCheckResult]: Loop: 46#L26-2true goto; 48#L563true 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#L40true assume !(main_~this_expect~0 > 16); 33#L40-2true assume !(0 == main_~q~0); 111#L65true assume !(1 == main_~q~0); 6#L165true assume !(2 == main_~q~0); 56#L265true assume !(3 == main_~q~0); 38#L365true assume !(4 == main_~q~0); 105#L465true assume !(5 == main_~q~0); 46#L26-2true [2021-08-27 15:14:14,322 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,322 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-08-27 15:14:14,327 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,328 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537014539] [2021-08-27 15:14:14,328 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,328 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,397 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,398 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:14,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,430 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:14,441 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,442 INFO L82 PathProgramCache]: Analyzing trace with hash 2073703402, now seen corresponding path program 1 times [2021-08-27 15:14:14,442 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,443 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1485903819] [2021-08-27 15:14:14,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,444 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,459 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:14,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,479 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:14,480 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,480 INFO L82 PathProgramCache]: Analyzing trace with hash 2006272616, now seen corresponding path program 1 times [2021-08-27 15:14:14,481 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,481 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1729531120] [2021-08-27 15:14:14,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,481 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 15:14:14,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 15:14:14,546 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-08-27 15:14:14,546 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1729531120] [2021-08-27 15:14:14,546 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1729531120] provided 1 perfect and 0 imperfect interpolant sequences [2021-08-27 15:14:14,546 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-08-27 15:14:14,546 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-08-27 15:14:14,547 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [185665424] [2021-08-27 15:14:14,721 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-08-27 15:14:14,729 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 15:14:14,731 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 15:14:14,734 INFO L87 Difference]: Start difference. First operand has 109 states, 108 states have (on average 1.9444444444444444) internal successors, (210), 108 states have internal predecessors, (210), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:14,828 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 15:14:14,836 INFO L93 Difference]: Finished difference Result 113 states and 210 transitions. [2021-08-27 15:14:14,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 15:14:14,838 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 113 states and 210 transitions. [2021-08-27 15:14:14,841 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-08-27 15:14:14,844 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 113 states to 82 states and 125 transitions. [2021-08-27 15:14:14,845 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 82 [2021-08-27 15:14:14,845 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 82 [2021-08-27 15:14:14,845 INFO L73 IsDeterministic]: Start isDeterministic. Operand 82 states and 125 transitions. [2021-08-27 15:14:14,846 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-08-27 15:14:14,846 INFO L681 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-08-27 15:14:14,877 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states and 125 transitions. [2021-08-27 15:14:14,895 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2021-08-27 15:14:14,895 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 82 states, 82 states have (on average 1.524390243902439) internal successors, (125), 81 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-08-27 15:14:14,896 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 125 transitions. [2021-08-27 15:14:14,897 INFO L704 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-08-27 15:14:14,897 INFO L587 BuchiCegarLoop]: Abstraction has 82 states and 125 transitions. [2021-08-27 15:14:14,897 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-08-27 15:14:14,897 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 82 states and 125 transitions. [2021-08-27 15:14:14,898 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 79 [2021-08-27 15:14:14,899 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-08-27 15:14:14,899 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-08-27 15:14:14,899 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-08-27 15:14:14,899 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-08-27 15:14:14,899 INFO L791 eck$LassoCheckResult]: Stem: 301#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; 288#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; 289#L26-2 goto; 255#L563 [2021-08-27 15:14:14,899 INFO L793 eck$LassoCheckResult]: Loop: 255#L563 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; 277#L40 assume !(main_~this_expect~0 > 16); 278#L40-2 assume 0 == main_~q~0; 254#L46 assume !(0 != main_#t~nondet16);havoc main_#t~nondet16; 255#L563 [2021-08-27 15:14:14,900 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,900 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2021-08-27 15:14:14,900 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,900 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1076190775] [2021-08-27 15:14:14,900 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,900 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,908 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:14,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,917 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:14,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1267254, now seen corresponding path program 1 times [2021-08-27 15:14:14,918 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,918 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1271257603] [2021-08-27 15:14:14,918 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,918 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,921 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:14,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,925 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:14,925 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 15:14:14,925 INFO L82 PathProgramCache]: Analyzing trace with hash 1805953496, now seen corresponding path program 1 times [2021-08-27 15:14:14,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-08-27 15:14:14,926 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889550612] [2021-08-27 15:14:14,926 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 15:14:14,926 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-08-27 15:14:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,933 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 15:14:14,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 15:14:14,942 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-08-27 15:14:15,404 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 27.08 03:14:15 BoogieIcfgContainer [2021-08-27 15:14:15,404 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2021-08-27 15:14:15,405 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 15:14:15,405 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 15:14:15,405 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 15:14:15,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 03:14:14" (3/4) ... [2021-08-27 15:14:15,407 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2021-08-27 15:14:15,445 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2021-08-27 15:14:15,445 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 15:14:15,446 INFO L168 Benchmark]: Toolchain (without parser) took 2357.26 ms. Allocated memory was 50.3 MB in the beginning and 100.7 MB in the end (delta: 50.3 MB). Free memory was 26.8 MB in the beginning and 55.5 MB in the end (delta: -28.7 MB). Peak memory consumption was 21.4 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,446 INFO L168 Benchmark]: CDTParser took 0.10 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 15:14:15,447 INFO L168 Benchmark]: CACSL2BoogieTranslator took 269.95 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 49.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,447 INFO L168 Benchmark]: Boogie Procedure Inliner took 74.01 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 44.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,448 INFO L168 Benchmark]: Boogie Preprocessor took 56.26 ms. Allocated memory is still 67.1 MB. Free memory was 44.7 MB in the beginning and 41.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,452 INFO L168 Benchmark]: RCFGBuilder took 745.02 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.8 MB in the beginning and 51.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,452 INFO L168 Benchmark]: BuchiAutomizer took 1163.85 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 51.4 MB in the beginning and 57.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,452 INFO L168 Benchmark]: Witness Printer took 39.99 ms. Allocated memory is still 100.7 MB. Free memory was 56.6 MB in the beginning and 55.5 MB in the end (delta: 1.1 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2021-08-27 15:14:15,454 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10 ms. Allocated memory is still 50.3 MB. Free memory was 32.8 MB in the beginning and 32.7 MB in the end (delta: 38.2 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 269.95 ms. Allocated memory was 50.3 MB in the beginning and 67.1 MB in the end (delta: 16.8 MB). Free memory was 26.7 MB in the beginning and 49.2 MB in the end (delta: -22.5 MB). Peak memory consumption was 8.9 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 74.01 ms. Allocated memory is still 67.1 MB. Free memory was 49.0 MB in the beginning and 44.7 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 56.26 ms. Allocated memory is still 67.1 MB. Free memory was 44.7 MB in the beginning and 41.8 MB in the end (delta: 2.9 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 745.02 ms. Allocated memory was 67.1 MB in the beginning and 83.9 MB in the end (delta: 16.8 MB). Free memory was 41.8 MB in the beginning and 51.8 MB in the end (delta: -10.0 MB). Peak memory consumption was 18.2 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1163.85 ms. Allocated memory was 83.9 MB in the beginning and 100.7 MB in the end (delta: 16.8 MB). Free memory was 51.4 MB in the beginning and 57.6 MB in the end (delta: -6.2 MB). Peak memory consumption was 38.0 MB. Max. memory is 16.1 GB. * Witness Printer took 39.99 ms. Allocated memory is still 100.7 MB. Free memory was 56.6 MB in the beginning and 55.5 MB in the end (delta: 1.1 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 82 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.1s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.8s. 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 21.3ms AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 82 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 204 SDtfs, 5 SDslu, 158 SDs, 0 SdLazy, 43 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 42.3ms 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=17979} State at position 1 is {NULL=0, m_Protocol=1, NULL=17979, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@54c9916a=14, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@56dcb68f=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31a0adfe=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e8de820=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d1a8156=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@20a34550=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c40ea75=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3119d96b=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@29c35ce3=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a98ef9a=19, NULL=0, NULL=0, P8=22, P6=21, P4=14, P2=17, this_buffer_empty=0, this_expect=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@60d48b90=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3bb2961=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3fc587=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43c978a2=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44af8c3e=0, m_recv_ack_1_2=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@705f340=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5daf22e0=0, m_msg_1_1=4, NULL=17981, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2ec59a56=15, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4b262801=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d352e4=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e9738aa=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a6b9294=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2cfb8ff1=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7fe435d7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@10de7a59=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@183c0811=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78b100e9=0, NULL=17980, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4e78c259=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3e8c4860=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@609888eb=0, NULL=0, P9=19, P7=18, NULL=17982, P5=23, P3=20, P1=15, m_msg_2=2, m_msg_1_2=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14d8c3e7=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3535e5b4=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1c0cc275=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4ec35d79=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6fe5366e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4652b3da=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@263f8d61=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@742aa5ba=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ea8f6ce=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@14cd9e04=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] int this_expect = 0; [L23] 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(); [L40] COND FALSE !(this_expect > 16) [L45] COND TRUE q == 0 [L46] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! [2021-08-27 15:14:15,504 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...