./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 a4ecdabc Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/data/config -Xmx15G -Xms4m -jar /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_abp_1-3.c -s /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 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-a4ecdab [2020-11-30 00:55:18,103 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-30 00:55:18,106 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-30 00:55:18,205 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-30 00:55:18,207 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-30 00:55:18,215 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-30 00:55:18,220 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-30 00:55:18,229 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-30 00:55:18,233 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-30 00:55:18,243 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-30 00:55:18,245 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-30 00:55:18,247 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-30 00:55:18,249 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-30 00:55:18,252 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-30 00:55:18,255 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-30 00:55:18,257 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-30 00:55:18,258 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-30 00:55:18,262 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-30 00:55:18,264 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-30 00:55:18,271 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-30 00:55:18,273 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-30 00:55:18,278 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-30 00:55:18,281 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-30 00:55:18,282 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-30 00:55:18,289 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-30 00:55:18,290 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-30 00:55:18,290 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-30 00:55:18,293 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-30 00:55:18,293 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-30 00:55:18,295 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-30 00:55:18,295 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-30 00:55:18,297 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-30 00:55:18,299 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-30 00:55:18,300 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-30 00:55:18,301 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-30 00:55:18,302 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-30 00:55:18,303 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-30 00:55:18,303 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-30 00:55:18,303 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-30 00:55:18,305 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-30 00:55:18,306 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-30 00:55:18,309 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-11-30 00:55:18,362 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-30 00:55:18,362 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-30 00:55:18,365 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-11-30 00:55:18,365 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-11-30 00:55:18,366 INFO L138 SettingsManager]: * Use SBE=true [2020-11-30 00:55:18,366 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-11-30 00:55:18,366 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-11-30 00:55:18,366 INFO L138 SettingsManager]: * Use old map elimination=false [2020-11-30 00:55:18,367 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-11-30 00:55:18,367 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-11-30 00:55:18,368 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-11-30 00:55:18,369 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-30 00:55:18,369 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-30 00:55:18,369 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-11-30 00:55:18,369 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-30 00:55:18,370 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-30 00:55:18,370 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-30 00:55:18,370 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-11-30 00:55:18,371 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-11-30 00:55:18,371 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-11-30 00:55:18,371 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-30 00:55:18,371 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-30 00:55:18,372 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-11-30 00:55:18,372 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-30 00:55:18,372 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-11-30 00:55:18,372 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-30 00:55:18,373 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-11-30 00:55:18,373 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-11-30 00:55:18,373 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-30 00:55:18,376 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-11-30 00:55:18,376 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-11-30 00:55:18,377 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-11-30 00:55:18,378 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-11-30 00:55:18,379 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:/tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0db572bf30caf92f48b0dba5a9cc25cec23b8ac8 [2020-11-30 00:55:18,680 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-30 00:55:18,736 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-30 00:55:18,739 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-30 00:55:18,742 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-30 00:55:18,743 INFO L275 PluginConnector]: CDTParser initialized [2020-11-30 00:55:18,744 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/../../sv-benchmarks/c/psyco/psyco_abp_1-3.c [2020-11-30 00:55:18,864 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/data/c04edac18/d61815baa8b64282b353573e5d27ed10/FLAG1d4d22328 [2020-11-30 00:55:19,514 INFO L306 CDTParser]: Found 1 translation units. [2020-11-30 00:55:19,515 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/sv-benchmarks/c/psyco/psyco_abp_1-3.c [2020-11-30 00:55:19,533 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/data/c04edac18/d61815baa8b64282b353573e5d27ed10/FLAG1d4d22328 [2020-11-30 00:55:19,748 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/data/c04edac18/d61815baa8b64282b353573e5d27ed10 [2020-11-30 00:55:19,753 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-30 00:55:19,758 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-11-30 00:55:19,765 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:19,765 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-30 00:55:19,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-30 00:55:19,777 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:19" (1/1) ... [2020-11-30 00:55:19,779 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5b10a6d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:19, skipping insertion in model container [2020-11-30 00:55:19,781 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 30.11 12:55:19" (1/1) ... [2020-11-30 00:55:19,791 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-30 00:55:19,854 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-30 00:55:20,206 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:20,219 INFO L203 MainTranslator]: Completed pre-run [2020-11-30 00:55:20,365 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-30 00:55:20,384 INFO L208 MainTranslator]: Completed translation [2020-11-30 00:55:20,385 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20 WrapperNode [2020-11-30 00:55:20,385 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-30 00:55:20,389 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:20,389 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-11-30 00:55:20,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-11-30 00:55:20,400 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,422 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,492 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-11-30 00:55:20,493 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-30 00:55:20,493 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-30 00:55:20,494 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-30 00:55:20,502 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,502 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,529 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,540 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,553 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... [2020-11-30 00:55:20,563 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-30 00:55:20,564 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-30 00:55:20,564 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-30 00:55:20,565 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-30 00:55:20,566 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-11-30 00:55:20,717 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-30 00:55:20,717 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-30 00:55:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-30 00:55:20,718 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-30 00:55:22,025 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-30 00:55:22,028 INFO L298 CfgBuilder]: Removed 8 assume(true) statements. [2020-11-30 00:55:22,031 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:22 BoogieIcfgContainer [2020-11-30 00:55:22,032 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-30 00:55:22,034 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-11-30 00:55:22,034 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-11-30 00:55:22,038 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-11-30 00:55:22,040 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:22,040 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 30.11 12:55:19" (1/3) ... [2020-11-30 00:55:22,042 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17611d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:22, skipping insertion in model container [2020-11-30 00:55:22,042 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:22,043 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 30.11 12:55:20" (2/3) ... [2020-11-30 00:55:22,044 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@17611d3c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 30.11 12:55:22, skipping insertion in model container [2020-11-30 00:55:22,044 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-11-30 00:55:22,044 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:22" (3/3) ... [2020-11-30 00:55:22,046 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_abp_1-3.c [2020-11-30 00:55:22,125 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-11-30 00:55:22,125 INFO L360 BuchiCegarLoop]: Hoare is false [2020-11-30 00:55:22,125 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-11-30 00:55:22,125 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-30 00:55:22,126 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-30 00:55:22,126 INFO L364 BuchiCegarLoop]: Difference is false [2020-11-30 00:55:22,126 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-30 00:55:22,126 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-11-30 00:55:22,153 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-30 00:55:22,219 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2020-11-30 00:55:22,219 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:22,220 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:22,231 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:55:22,231 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:22,232 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-11-30 00:55:22,232 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 109 states. [2020-11-30 00:55:22,250 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 75 [2020-11-30 00:55:22,250 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:22,251 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:22,251 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-11-30 00:55:22,252 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-11-30 00:55:22,265 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 [2020-11-30 00:55:22,267 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 [2020-11-30 00:55:22,278 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:22,278 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-11-30 00:55:22,290 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:22,291 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925275280] [2020-11-30 00:55:22,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:22,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:22,440 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:22,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:22,490 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:22,528 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:22,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:22,533 INFO L82 PathProgramCache]: Analyzing trace with hash -2021581594, now seen corresponding path program 1 times [2020-11-30 00:55:22,534 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:22,535 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799930841] [2020-11-30 00:55:22,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:22,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:22,559 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:22,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:22,573 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:22,577 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:22,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:22,579 INFO L82 PathProgramCache]: Analyzing trace with hash -1331020120, now seen corresponding path program 1 times [2020-11-30 00:55:22,579 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:22,580 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [798903949] [2020-11-30 00:55:22,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:22,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-30 00:55:22,731 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-30 00:55:22,732 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [798903949] [2020-11-30 00:55:22,733 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-30 00:55:22,733 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-30 00:55:22,734 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1013832975] [2020-11-30 00:55:22,918 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-11-30 00:55:22,935 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-30 00:55:22,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-30 00:55:22,939 INFO L87 Difference]: Start difference. First operand 109 states. Second operand 3 states. [2020-11-30 00:55:23,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-30 00:55:23,105 INFO L93 Difference]: Finished difference Result 111 states and 201 transitions. [2020-11-30 00:55:23,106 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-30 00:55:23,108 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 111 states and 201 transitions. [2020-11-30 00:55:23,120 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-30 00:55:23,126 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 111 states to 80 states and 121 transitions. [2020-11-30 00:55:23,127 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 80 [2020-11-30 00:55:23,128 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 80 [2020-11-30 00:55:23,129 INFO L73 IsDeterministic]: Start isDeterministic. Operand 80 states and 121 transitions. [2020-11-30 00:55:23,130 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-11-30 00:55:23,130 INFO L691 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-11-30 00:55:23,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80 states and 121 transitions. [2020-11-30 00:55:23,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80 to 80. [2020-11-30 00:55:23,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 80 states. [2020-11-30 00:55:23,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 121 transitions. [2020-11-30 00:55:23,171 INFO L714 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-11-30 00:55:23,172 INFO L594 BuchiCegarLoop]: Abstraction has 80 states and 121 transitions. [2020-11-30 00:55:23,172 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-11-30 00:55:23,172 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 80 states and 121 transitions. [2020-11-30 00:55:23,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 77 [2020-11-30 00:55:23,180 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-11-30 00:55:23,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-11-30 00:55:23,182 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-11-30 00:55:23,182 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-11-30 00:55:23,182 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 [2020-11-30 00:55:23,184 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 [2020-11-30 00:55:23,184 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:23,185 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-11-30 00:55:23,185 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:23,186 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [412127208] [2020-11-30 00:55:23,186 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:23,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,202 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,220 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:23,221 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:23,221 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-11-30 00:55:23,221 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:23,222 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1358317920] [2020-11-30 00:55:23,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:23,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,227 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,231 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,235 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:23,235 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-30 00:55:23,236 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-11-30 00:55:23,236 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-11-30 00:55:23,236 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1403723876] [2020-11-30 00:55:23,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-30 00:55:23,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,264 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-30 00:55:23,284 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-30 00:55:23,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-11-30 00:55:23,674 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 82 DAG size of output: 76 [2020-11-30 00:55:23,849 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification that was a NOOP. DAG size: 76 [2020-11-30 00:55:23,892 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 30.11 12:55:23 BoogieIcfgContainer [2020-11-30 00:55:23,893 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-11-30 00:55:23,894 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-11-30 00:55:23,894 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-11-30 00:55:23,894 INFO L275 PluginConnector]: Witness Printer initialized [2020-11-30 00:55:23,895 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 30.11 12:55:22" (3/4) ... [2020-11-30 00:55:23,901 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-11-30 00:55:23,966 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_21715153-781c-47fc-b244-4b739369ce51/bin/uautomizer/witness.graphml [2020-11-30 00:55:23,966 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-11-30 00:55:23,968 INFO L168 Benchmark]: Toolchain (without parser) took 4209.52 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 54.0 MB in the beginning and 78.0 MB in the end (delta: -24.0 MB). Peak memory consumption was 1.8 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,969 INFO L168 Benchmark]: CDTParser took 0.99 ms. Allocated memory is still 86.0 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. [2020-11-30 00:55:23,970 INFO L168 Benchmark]: CACSL2BoogieTranslator took 621.15 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 54.0 MB in the end (delta: -118.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,971 INFO L168 Benchmark]: Boogie Procedure Inliner took 103.59 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 49.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,971 INFO L168 Benchmark]: Boogie Preprocessor took 70.19 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 46.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,972 INFO L168 Benchmark]: RCFGBuilder took 1468.35 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.3 MB in the beginning and 54.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,973 INFO L168 Benchmark]: BuchiAutomizer took 1859.58 ms. Allocated memory is still 113.2 MB. Free memory was 54.4 MB in the beginning and 80.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,974 INFO L168 Benchmark]: Witness Printer took 72.43 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 78.0 MB in the end (delta: 2.0 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-11-30 00:55:23,978 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.99 ms. Allocated memory is still 86.0 MB. Free memory is still 44.5 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 621.15 ms. Allocated memory is still 86.0 MB. Free memory was 53.8 MB in the beginning and 54.0 MB in the end (delta: -118.7 kB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 103.59 ms. Allocated memory is still 86.0 MB. Free memory was 54.0 MB in the beginning and 49.4 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 70.19 ms. Allocated memory is still 86.0 MB. Free memory was 49.4 MB in the beginning and 46.3 MB in the end (delta: 3.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1468.35 ms. Allocated memory was 86.0 MB in the beginning and 113.2 MB in the end (delta: 27.3 MB). Free memory was 46.3 MB in the beginning and 54.4 MB in the end (delta: -8.1 MB). Peak memory consumption was 25.9 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1859.58 ms. Allocated memory is still 113.2 MB. Free memory was 54.4 MB in the beginning and 80.0 MB in the end (delta: -25.6 MB). Peak memory consumption was 18.5 MB. Max. memory is 16.1 GB. * Witness Printer took 72.43 ms. Allocated memory is still 113.2 MB. Free memory was 80.0 MB in the beginning and 78.0 MB in the end (delta: 2.0 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 1.7s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.3s. Construction of modules took 0.1s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 80 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 197 SDtfs, 4 SDslu, 151 SDs, 0 SdLazy, 43 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 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@4d757255=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@110425b3=23, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41fc9db9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39ba8e80=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2e9f179d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45f89634=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44d652e0=20, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61d32db3=22, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7521c06=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@374b88e2=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@d4fe48a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@34340095=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@504f3154=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f277942=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e1835fa=0, m_recv_ack_1_2=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7dbea798=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@691a2012=0, m_msg_1_1=4, NULL=2, \result=0, m_recv_ack_2=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5970bbab=24, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4a53fa81=26, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@401ca79e=21, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@17737405=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@d905ff=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f271d5e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7b3b3703=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@483e3f81=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2218d0ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@77e4b73d=0, NULL=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3fdab2c3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3810858b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1a313ea5=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@60ccca67=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@def9670=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5b9a4baf=0, q=0, m_recv_ack_1_1=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f4f0e4a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@69cac163=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@74f615cc=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ad23fde=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ccb5911=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2de608ee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@24a8e9ce=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...