./Ultimate.py --spec ../../sv-benchmarks/c/properties/termination.prp --file ../../sv-benchmarks/c/psyco/psyco_io_1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version f470102c Calling Ultimate with: /usr/lib/jvm/java-8-openjdk-amd64/bin/java -Dosgi.configuration.area=/tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/data/config -Xmx12G -Xms1G -jar /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/data -tc /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/config/AutomizerTermination.xml -i ../../sv-benchmarks/c/psyco/psyco_io_1.c -s /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/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 69c831b1eda23dac6e2f4454b4feebfba511ade3 ........................................................................................................................................................................................................................................................................................................................................ Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM) --- Real Ultimate output --- This is Ultimate 0.1.25-f470102 [2019-12-07 18:32:49,011 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-07 18:32:49,012 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-07 18:32:49,019 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-07 18:32:49,020 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-07 18:32:49,020 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-07 18:32:49,021 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-07 18:32:49,022 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-07 18:32:49,024 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-07 18:32:49,024 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-07 18:32:49,025 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-07 18:32:49,026 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-07 18:32:49,026 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-07 18:32:49,027 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-07 18:32:49,027 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-07 18:32:49,028 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-07 18:32:49,029 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-07 18:32:49,029 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-07 18:32:49,030 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-07 18:32:49,032 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-07 18:32:49,033 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-07 18:32:49,033 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-07 18:32:49,034 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-07 18:32:49,035 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-07 18:32:49,036 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-07 18:32:49,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-07 18:32:49,037 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-07 18:32:49,037 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-07 18:32:49,037 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-07 18:32:49,038 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-07 18:32:49,038 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-07 18:32:49,038 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-07 18:32:49,039 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-07 18:32:49,039 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-07 18:32:49,040 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-07 18:32:49,040 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-07 18:32:49,040 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-07 18:32:49,040 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-07 18:32:49,041 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-07 18:32:49,041 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-07 18:32:49,042 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-07 18:32:49,042 INFO L101 SettingsManager]: Beginning loading settings from /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/config/svcomp-Termination-32bit-Automizer_Default.epf [2019-12-07 18:32:49,053 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-07 18:32:49,053 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-07 18:32:49,054 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-07 18:32:49,054 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-07 18:32:49,054 INFO L138 SettingsManager]: * Use SBE=true [2019-12-07 18:32:49,054 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2019-12-07 18:32:49,054 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2019-12-07 18:32:49,054 INFO L138 SettingsManager]: * Use old map elimination=false [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2019-12-07 18:32:49,055 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-07 18:32:49,055 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-07 18:32:49,056 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2019-12-07 18:32:49,056 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-07 18:32:49,057 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-07 18:32:49,057 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2019-12-07 18:32:49,057 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-07 18:32:49,057 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-07 18:32:49,057 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2019-12-07 18:32:49,057 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2019-12-07 18:32:49,058 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2019-12-07 18:32:49,058 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/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 -> 69c831b1eda23dac6e2f4454b4feebfba511ade3 [2019-12-07 18:32:49,155 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-07 18:32:49,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-07 18:32:49,168 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-07 18:32:49,170 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-07 18:32:49,170 INFO L275 PluginConnector]: CDTParser initialized [2019-12-07 18:32:49,171 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/../../sv-benchmarks/c/psyco/psyco_io_1.c [2019-12-07 18:32:49,212 INFO L220 CDTParser]: Created temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/data/6dba6fbf1/7ade85fb982043679f69b05178201efe/FLAGd44ee595d [2019-12-07 18:32:49,644 INFO L306 CDTParser]: Found 1 translation units. [2019-12-07 18:32:49,645 INFO L160 CDTParser]: Scanning /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/sv-benchmarks/c/psyco/psyco_io_1.c [2019-12-07 18:32:49,651 INFO L349 CDTParser]: About to delete temporary CDT project at /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/data/6dba6fbf1/7ade85fb982043679f69b05178201efe/FLAGd44ee595d [2019-12-07 18:32:49,660 INFO L357 CDTParser]: Successfully deleted /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/data/6dba6fbf1/7ade85fb982043679f69b05178201efe [2019-12-07 18:32:49,662 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-07 18:32:49,663 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2019-12-07 18:32:49,664 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:49,664 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-07 18:32:49,666 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-07 18:32:49,667 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,668 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@8a8f29 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49, skipping insertion in model container [2019-12-07 18:32:49,668 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,673 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-07 18:32:49,691 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-07 18:32:49,835 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:49,838 INFO L203 MainTranslator]: Completed pre-run [2019-12-07 18:32:49,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-07 18:32:49,867 INFO L208 MainTranslator]: Completed translation [2019-12-07 18:32:49,867 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49 WrapperNode [2019-12-07 18:32:49,867 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-07 18:32:49,868 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:49,868 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-07 18:32:49,868 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-07 18:32:49,873 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,877 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,893 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-07 18:32:49,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-07 18:32:49,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-07 18:32:49,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-07 18:32:49,900 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,900 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,901 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,901 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,904 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,908 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,909 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... [2019-12-07 18:32:49,911 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-07 18:32:49,912 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-07 18:32:49,912 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-07 18:32:49,912 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-07 18:32:49,912 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (1/1) ... No working directory specified, using /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2019-12-07 18:32:49,952 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-07 18:32:49,952 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-07 18:32:50,171 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-07 18:32:50,172 INFO L287 CfgBuilder]: Removed 9 assume(true) statements. [2019-12-07 18:32:50,172 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:50 BoogieIcfgContainer [2019-12-07 18:32:50,173 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-07 18:32:50,173 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2019-12-07 18:32:50,173 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2019-12-07 18:32:50,175 INFO L275 PluginConnector]: BuchiAutomizer initialized [2019-12-07 18:32:50,176 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:50,176 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 07.12 06:32:49" (1/3) ... [2019-12-07 18:32:50,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@defa59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:32:50, skipping insertion in model container [2019-12-07 18:32:50,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:50,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.12 06:32:49" (2/3) ... [2019-12-07 18:32:50,177 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@defa59 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 07.12 06:32:50, skipping insertion in model container [2019-12-07 18:32:50,177 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2019-12-07 18:32:50,177 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:50" (3/3) ... [2019-12-07 18:32:50,178 INFO L371 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2019-12-07 18:32:50,205 INFO L356 BuchiCegarLoop]: Interprodecural is true [2019-12-07 18:32:50,205 INFO L357 BuchiCegarLoop]: Hoare is false [2019-12-07 18:32:50,205 INFO L358 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2019-12-07 18:32:50,205 INFO L359 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-07 18:32:50,205 INFO L360 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-07 18:32:50,205 INFO L361 BuchiCegarLoop]: Difference is false [2019-12-07 18:32:50,206 INFO L362 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-07 18:32:50,206 INFO L365 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2019-12-07 18:32:50,216 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states. [2019-12-07 18:32:50,232 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2019-12-07 18:32:50,232 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:50,232 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:50,237 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:32:50,237 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:32:50,237 INFO L424 BuchiCegarLoop]: ======== Iteration 1============ [2019-12-07 18:32:50,237 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 67 states. [2019-12-07 18:32:50,241 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2019-12-07 18:32:50,241 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:50,241 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:50,241 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2019-12-07 18:32:50,241 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2019-12-07 18:32:50,246 INFO L794 eck$LassoCheckResult]: Stem: 29#ULTIMATE.startENTRYtrue ~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 7#L-1true havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 47#L23-2true [2019-12-07 18:32:50,246 INFO L796 eck$LassoCheckResult]: Loop: 47#L23-2true goto; 69#L335true assume !false;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3; 32#L33true assume !(0 == main_~q~0); 63#L53true assume !(1 == main_~q~0); 60#L105true assume !(2 == main_~q~0); 43#L221true assume !(3 == main_~q~0); 47#L23-2true [2019-12-07 18:32:50,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,250 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2019-12-07 18:32:50,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,256 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1988765228] [2019-12-07 18:32:50,256 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,327 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:50,328 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,328 INFO L82 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2019-12-07 18:32:50,328 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,328 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1904912204] [2019-12-07 18:32:50,329 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,339 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:50,340 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,340 INFO L82 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2019-12-07 18:32:50,340 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,341 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [451942206] [2019-12-07 18:32:50,341 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-07 18:32:50,384 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-07 18:32:50,384 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [451942206] [2019-12-07 18:32:50,384 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-07 18:32:50,384 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-12-07 18:32:50,385 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [989908441] [2019-12-07 18:32:50,425 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-07 18:32:50,435 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-12-07 18:32:50,435 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-12-07 18:32:50,436 INFO L87 Difference]: Start difference. First operand 67 states. Second operand 3 states. [2019-12-07 18:32:50,476 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-07 18:32:50,476 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2019-12-07 18:32:50,476 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-12-07 18:32:50,478 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2019-12-07 18:32:50,481 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2019-12-07 18:32:50,484 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2019-12-07 18:32:50,485 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2019-12-07 18:32:50,485 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2019-12-07 18:32:50,486 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2019-12-07 18:32:50,486 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2019-12-07 18:32:50,486 INFO L688 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-12-07 18:32:50,497 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2019-12-07 18:32:50,505 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2019-12-07 18:32:50,505 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2019-12-07 18:32:50,506 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2019-12-07 18:32:50,507 INFO L711 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-12-07 18:32:50,507 INFO L591 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2019-12-07 18:32:50,507 INFO L424 BuchiCegarLoop]: ======== Iteration 2============ [2019-12-07 18:32:50,507 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2019-12-07 18:32:50,508 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2019-12-07 18:32:50,508 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2019-12-07 18:32:50,508 INFO L119 BuchiIsEmpty]: Starting construction of run [2019-12-07 18:32:50,508 INFO L849 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2019-12-07 18:32:50,508 INFO L850 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2019-12-07 18:32:50,508 INFO L794 eck$LassoCheckResult]: Stem: 174#ULTIMATE.startENTRY ~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 150#L-1 havoc main_#res;havoc main_#t~nondet0, main_#t~nondet1, main_#t~nondet2, main_#t~nondet3, main_#t~nondet4, main_#t~nondet5, main_#t~nondet6, main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 151#L23-2 goto; 189#L335 [2019-12-07 18:32:50,509 INFO L796 eck$LassoCheckResult]: Loop: 189#L335 assume !false;main_~P1~0 := main_#t~nondet0;havoc main_#t~nondet0;main_~P2~0 := main_#t~nondet1;havoc main_#t~nondet1;main_~P3~0 := main_#t~nondet2;havoc main_#t~nondet2;main_~P4~0 := main_#t~nondet3;havoc main_#t~nondet3; 177#L33 assume 0 == main_~q~0; 178#L34 assume !(0 != main_#t~nondet4);havoc main_#t~nondet4; 189#L335 [2019-12-07 18:32:50,509 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,509 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2019-12-07 18:32:50,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,509 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2121318675] [2019-12-07 18:32:50,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,516 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,517 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2019-12-07 18:32:50,517 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,517 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1306600880] [2019-12-07 18:32:50,517 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,522 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:50,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-07 18:32:50,522 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2019-12-07 18:32:50,522 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-07 18:32:50,522 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1891977020] [2019-12-07 18:32:50,522 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-07 18:32:50,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-07 18:32:50,532 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-07 18:32:50,594 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 07.12 06:32:50 BoogieIcfgContainer [2019-12-07 18:32:50,594 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2019-12-07 18:32:50,594 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2019-12-07 18:32:50,595 INFO L271 PluginConnector]: Initializing Witness Printer... [2019-12-07 18:32:50,595 INFO L275 PluginConnector]: Witness Printer initialized [2019-12-07 18:32:50,595 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.12 06:32:50" (3/4) ... [2019-12-07 18:32:50,597 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2019-12-07 18:32:50,624 INFO L141 WitnessManager]: Wrote witness to /tmp/vcloud-vcloud-master/worker/run_dir_0914a2d6-2863-4f92-a8a7-167fa550aefd/bin/uautomizer/witness.graphml [2019-12-07 18:32:50,624 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2019-12-07 18:32:50,626 INFO L168 Benchmark]: Toolchain (without parser) took 962.53 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.8 MB in the beginning and 997.4 MB in the end (delta: -56.7 MB). Peak memory consumption was 40.3 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,626 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:50,627 INFO L168 Benchmark]: CACSL2BoogieTranslator took 203.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,627 INFO L168 Benchmark]: Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,627 INFO L168 Benchmark]: Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2019-12-07 18:32:50,627 INFO L168 Benchmark]: RCFGBuilder took 261.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,628 INFO L168 Benchmark]: BuchiAutomizer took 421.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,628 INFO L168 Benchmark]: Witness Printer took 30.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 997.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. [2019-12-07 18:32:50,630 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 1.0 GB. Free memory is still 955.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 203.72 ms. Allocated memory was 1.0 GB in the beginning and 1.1 GB in the end (delta: 97.0 MB). Free memory was 940.8 MB in the beginning and 1.1 GB in the end (delta: -151.0 MB). Peak memory consumption was 24.6 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 25.76 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 17.84 ms. Allocated memory is still 1.1 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 261.11 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 27.2 MB). Peak memory consumption was 27.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 421.31 ms. Allocated memory is still 1.1 GB. Free memory was 1.1 GB in the beginning and 1.0 GB in the end (delta: 56.4 MB). Peak memory consumption was 56.4 MB. Max. memory is 11.5 GB. * Witness Printer took 30.05 ms. Allocated memory is still 1.1 GB. Free memory was 1.0 GB in the beginning and 997.4 MB in the end (delta: 5.4 MB). Peak memory consumption was 5.4 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.3s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.2s. Construction of modules took 0.0s. Büchi inclusion checks took 0.0s. Highest rank in rank-based complementation 0. Minimization of det autom 1. Minimization of nondet autom 0. Automata minimization 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations. Non-live state removal took 0.0s Buchi closure took 0.0s. Biggest automaton had 52 states and ocurred in iteration 1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 98 SDtfs, 4 SDslu, 73 SDs, 0 SdLazy, 22 SolverSat, 1 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time LassoAnalysisResults: nont1 unkn0 SFLI0 SFLT0 conc1 concLT0 SILN0 SILU0 SILI0 SILT0 lasso0 LassoPreprocessingBenchmarks: LassoTerminationAnalysisBenchmarks: not availableLassoTerminationAnalysisBenchmarks: LassoNonterminationAnalysisSatFixpoint: 0 LassoNonterminationAnalysisSatUnbounded: 0 LassoNonterminationAnalysisUnsat: 0 LassoNonterminationAnalysisUnknown: 0 LassoNonterminationAnalysisTime: 0.0s - TerminationAnalysisResult: Nontermination possible Buchi Automizer proved that your program is nonterminating for some inputs - FixpointNonTerminationResult [Line: 23]: Nontermination argument in form of an infinite program execution. Nontermination argument in form of an infinite execution State at position 0 is {} State at position 1 is {m_PipedOutputStream=2, \result=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7c1bde87=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61ab2da9=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6a4f6cda=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52daa1f6=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@ca221ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@591d4d47=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6ffc9274=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bd05f05=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7bc90519=0, m_connect_2=6, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7005d47d=10, m_connect_1=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6f819783=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@773c73a9=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2c04ee50=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4d86f60e=0, this_sinkConnected=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3f10fd08=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3ebe3007=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@43aee3b3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@52967ea0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@61d276c0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18832588=0, P4=9, P3=7, P2=8, P1=10, m_close=3, m_write=4, m_flush=1, this_sink=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@35c32fee=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4f0f99de=0, q=0, method_id=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 23]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L5] int m_flush = 1; [L6] int m_PipedOutputStream = 2; [L7] int m_close = 3; [L8] int m_write = 4; [L9] int m_connect_1 = 5; [L10] int m_connect_2 = 6; [L15] int q = 0; [L16] int method_id; [L19] int this_sink = 0; [L20] int this_sinkConnected = 0; Loop: [L23] COND TRUE 1 [L26] int P1=__VERIFIER_nondet_int(); [L27] int P2=__VERIFIER_nondet_int(); [L28] int P3=__VERIFIER_nondet_int(); [L29] int P4=__VERIFIER_nondet_int(); [L33] COND TRUE q == 0 [L34] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...