./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 906a4fb5 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/psyco/psyco_io_1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(F end) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 0e42a14d02446d341c51d21bb42c9bd175f1ebef ...................................................................................................................................................................................................................................................................................................................................................... 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 0.1.25-906a4fb [2020-10-19 19:08:02,473 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-19 19:08:02,476 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-19 19:08:02,520 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-19 19:08:02,521 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-19 19:08:02,534 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-19 19:08:02,537 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-19 19:08:02,540 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-19 19:08:02,543 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-19 19:08:02,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-19 19:08:02,546 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-19 19:08:02,548 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-19 19:08:02,549 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-19 19:08:02,553 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-19 19:08:02,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-19 19:08:02,558 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-19 19:08:02,559 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-19 19:08:02,562 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-19 19:08:02,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-19 19:08:02,570 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-19 19:08:02,573 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-19 19:08:02,574 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-19 19:08:02,575 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-19 19:08:02,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-19 19:08:02,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-19 19:08:02,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-19 19:08:02,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-19 19:08:02,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-19 19:08:02,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-19 19:08:02,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-19 19:08:02,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-19 19:08:02,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-19 19:08:02,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-19 19:08:02,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-19 19:08:02,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-19 19:08:02,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-19 19:08:02,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-19 19:08:02,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-19 19:08:02,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-19 19:08:02,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-19 19:08:02,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-19 19:08:02,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-19 19:08:02,615 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-19 19:08:02,615 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-19 19:08:02,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-19 19:08:02,617 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-19 19:08:02,617 INFO L138 SettingsManager]: * Use SBE=true [2020-10-19 19:08:02,617 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-19 19:08:02,618 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-19 19:08:02,618 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-19 19:08:02,618 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-19 19:08:02,618 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-19 19:08:02,619 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-19 19:08:02,619 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-19 19:08:02,619 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-19 19:08:02,619 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-19 19:08:02,620 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-19 19:08:02,620 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-19 19:08:02,620 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-19 19:08:02,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-19 19:08:02,621 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-19 19:08:02,621 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-19 19:08:02,621 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-19 19:08:02,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-19 19:08:02,622 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-19 19:08:02,622 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-19 19:08:02,623 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-19 19:08:02,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-19 19:08:02,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-19 19:08:02,624 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-19 19:08:02,624 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-19 19:08:02,624 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-19 19:08:02,624 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-19 19:08:02,625 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-19 19:08:02,626 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-19 19:08:02,626 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e42a14d02446d341c51d21bb42c9bd175f1ebef [2020-10-19 19:08:02,954 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-19 19:08:02,969 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-19 19:08:02,974 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-19 19:08:02,976 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-19 19:08:02,977 INFO L275 PluginConnector]: CDTParser initialized [2020-10-19 19:08:02,978 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_io_1.c [2020-10-19 19:08:03,058 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530cda1a9/3f2f21789c1e4ca4ba4c591aea76264a/FLAG2d0a7d0ca [2020-10-19 19:08:03,570 INFO L306 CDTParser]: Found 1 translation units. [2020-10-19 19:08:03,571 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_io_1.c [2020-10-19 19:08:03,591 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530cda1a9/3f2f21789c1e4ca4ba4c591aea76264a/FLAG2d0a7d0ca [2020-10-19 19:08:03,894 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/530cda1a9/3f2f21789c1e4ca4ba4c591aea76264a [2020-10-19 19:08:03,898 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-19 19:08:03,905 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-19 19:08:03,906 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-19 19:08:03,907 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-19 19:08:03,910 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-19 19:08:03,911 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:08:03" (1/1) ... [2020-10-19 19:08:03,914 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@730783a6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:03, skipping insertion in model container [2020-10-19 19:08:03,915 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.10 07:08:03" (1/1) ... [2020-10-19 19:08:03,923 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-19 19:08:03,953 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-19 19:08:04,187 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:08:04,204 INFO L203 MainTranslator]: Completed pre-run [2020-10-19 19:08:04,239 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-19 19:08:04,319 INFO L208 MainTranslator]: Completed translation [2020-10-19 19:08:04,320 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04 WrapperNode [2020-10-19 19:08:04,320 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-19 19:08:04,321 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-19 19:08:04,321 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-19 19:08:04,321 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-19 19:08:04,330 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,339 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,370 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-19 19:08:04,370 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-19 19:08:04,371 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-19 19:08:04,371 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-19 19:08:04,380 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,380 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,382 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,383 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,388 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,395 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,397 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... [2020-10-19 19:08:04,401 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-19 19:08:04,401 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-19 19:08:04,402 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-19 19:08:04,402 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-19 19:08:04,403 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-19 19:08:04,473 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-19 19:08:04,473 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-19 19:08:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-19 19:08:04,474 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-19 19:08:04,885 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-19 19:08:04,886 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-19 19:08:04,888 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:04 BoogieIcfgContainer [2020-10-19 19:08:04,888 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-19 19:08:04,889 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-19 19:08:04,889 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-19 19:08:04,893 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-19 19:08:04,895 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:04,895 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 19.10 07:08:03" (1/3) ... [2020-10-19 19:08:04,896 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@612e055a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:08:04, skipping insertion in model container [2020-10-19 19:08:04,896 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:04,897 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.10 07:08:04" (2/3) ... [2020-10-19 19:08:04,897 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@612e055a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 19.10 07:08:04, skipping insertion in model container [2020-10-19 19:08:04,897 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-19 19:08:04,898 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:04" (3/3) ... [2020-10-19 19:08:04,899 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2020-10-19 19:08:04,959 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-19 19:08:04,959 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-19 19:08:04,960 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-19 19:08:04,960 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-19 19:08:04,963 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-19 19:08:04,963 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-19 19:08:04,964 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-19 19:08:04,964 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-19 19:08:04,995 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-10-19 19:08:05,034 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2020-10-19 19:08:05,034 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,035 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,045 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:08:05,045 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:08:05,045 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-19 19:08:05,046 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-10-19 19:08:05,066 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2020-10-19 19:08:05,066 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,066 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,067 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-19 19:08:05,068 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-19 19:08:05,081 INFO L794 eck$LassoCheckResult]: Stem: 27#ULTIMATE.startENTRYtrue #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 11#L-1true havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 15#L25-2true [2020-10-19 19:08:05,083 INFO L796 eck$LassoCheckResult]: Loop: 15#L25-2true goto; 32#L337true 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; 69#L35true assume !(0 == main_~q~0); 31#L55true assume !(1 == main_~q~0); 47#L107true assume !(2 == main_~q~0); 26#L223true assume !(3 == main_~q~0); 15#L25-2true [2020-10-19 19:08:05,090 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,090 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-19 19:08:05,103 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,104 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [522597305] [2020-10-19 19:08:05,104 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,251 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,268 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,292 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,294 INFO L82 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2020-10-19 19:08:05,294 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,295 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299510999] [2020-10-19 19:08:05,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,301 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,305 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,309 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,311 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,313 INFO L82 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2020-10-19 19:08:05,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2050708212] [2020-10-19 19:08:05,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-19 19:08:05,382 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-19 19:08:05,383 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2050708212] [2020-10-19 19:08:05,384 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-19 19:08:05,384 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-19 19:08:05,385 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543918185] [2020-10-19 19:08:05,455 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-19 19:08:05,473 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-19 19:08:05,474 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-19 19:08:05,476 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-10-19 19:08:05,594 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-19 19:08:05,594 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2020-10-19 19:08:05,595 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-19 19:08:05,597 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2020-10-19 19:08:05,602 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-19 19:08:05,611 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2020-10-19 19:08:05,613 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-10-19 19:08:05,614 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2020-10-19 19:08:05,615 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2020-10-19 19:08:05,617 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-19 19:08:05,618 INFO L691 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-19 19:08:05,637 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2020-10-19 19:08:05,657 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-19 19:08:05,658 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-19 19:08:05,660 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-19 19:08:05,662 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-19 19:08:05,662 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-19 19:08:05,662 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-19 19:08:05,663 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2020-10-19 19:08:05,668 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-19 19:08:05,668 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-19 19:08:05,668 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-19 19:08:05,669 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-19 19:08:05,669 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-19 19:08:05,669 INFO L794 eck$LassoCheckResult]: Stem: 173#ULTIMATE.startENTRY #NULL.base, #NULL.offset := 0, 0;#valid := #valid[0 := 0];assume 0 < #StackHeapBarrier;call #t~string4.base, #t~string4.offset := #Ultimate.allocOnStack(2);call write~init~int(48, #t~string4.base, #t~string4.offset, 1);call write~init~int(0, #t~string4.base, 1 + #t~string4.offset, 1);call #t~string5.base, #t~string5.offset := #Ultimate.allocOnStack(13);call #t~string6.base, #t~string6.offset := #Ultimate.allocOnStack(12);~m_flush~0 := 1;~m_PipedOutputStream~0 := 2;~m_close~0 := 3;~m_write~0 := 4;~m_connect_1~0 := 5;~m_connect_2~0 := 6; 154#L-1 havoc main_#res;havoc main_#t~nondet7, main_#t~nondet8, main_#t~nondet9, main_#t~nondet10, main_#t~nondet11, main_#t~nondet12, main_#t~nondet13, main_#t~nondet14, main_#t~nondet15, main_#t~nondet16, main_#t~nondet17, main_#t~nondet18, main_#t~nondet19, main_#t~nondet20, main_#t~nondet21, main_#t~nondet22, main_#t~nondet23, main_#t~nondet24, main_#t~nondet25, main_#t~nondet26, main_#t~nondet27, main_#t~nondet28, main_~P1~0, main_~P2~0, main_~P3~0, main_~P4~0, main_~q~0, main_~method_id~0, main_~this_sink~0, main_~this_sinkConnected~0;main_~q~0 := 0;havoc main_~method_id~0;main_~this_sink~0 := 0;main_~this_sinkConnected~0 := 0; 155#L25-2 goto; 161#L337 [2020-10-19 19:08:05,669 INFO L796 eck$LassoCheckResult]: Loop: 161#L337 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; 182#L35 assume 0 == main_~q~0; 164#L36 assume !(0 != main_#t~nondet11);havoc main_#t~nondet11; 161#L337 [2020-10-19 19:08:05,670 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,670 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-19 19:08:05,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,672 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367428293] [2020-10-19 19:08:05,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,686 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,701 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,707 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,708 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,708 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-10-19 19:08:05,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,709 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002269893] [2020-10-19 19:08:05,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,714 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,717 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,720 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:05,721 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-19 19:08:05,721 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-10-19 19:08:05,722 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-19 19:08:05,722 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [656663291] [2020-10-19 19:08:05,722 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-19 19:08:05,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,736 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-19 19:08:05,749 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-19 19:08:05,757 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-19 19:08:06,060 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-19 19:08:06,181 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-19 19:08:06,217 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 19.10 07:08:06 BoogieIcfgContainer [2020-10-19 19:08:06,217 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-19 19:08:06,218 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-19 19:08:06,218 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-19 19:08:06,219 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-19 19:08:06,220 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.10 07:08:04" (3/4) ... [2020-10-19 19:08:06,224 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-19 19:08:06,287 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-19 19:08:06,288 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-19 19:08:06,290 INFO L168 Benchmark]: Toolchain (without parser) took 2390.62 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.3 MB in the beginning and 993.1 MB in the end (delta: -35.8 MB). Peak memory consumption was 89.5 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,291 INFO L168 Benchmark]: CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,292 INFO L168 Benchmark]: CACSL2BoogieTranslator took 414.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.3 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,293 INFO L168 Benchmark]: Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,293 INFO L168 Benchmark]: Boogie Preprocessor took 30.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,294 INFO L168 Benchmark]: RCFGBuilder took 487.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,295 INFO L168 Benchmark]: BuchiAutomizer took 1328.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.1 MB in the end (delta: 87.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 11.5 GB. [2020-10-19 19:08:06,295 INFO L168 Benchmark]: Witness Printer took 70.01 ms. Allocated memory is still 1.2 GB. Free memory is still 993.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-10-19 19:08:06,299 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.36 ms. Allocated memory is still 1.0 GB. Free memory is still 985.5 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 414.15 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 125.3 MB). Free memory was 957.3 MB in the beginning and 1.1 GB in the end (delta: -163.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 49.19 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 6.8 MB). Peak memory consumption was 6.8 MB. Max. memory is 11.5 GB. * Boogie Preprocessor took 30.70 ms. Allocated memory is still 1.2 GB. Free memory is still 1.1 GB. There was no memory consumed. Max. memory is 11.5 GB. * RCFGBuilder took 487.24 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 1.1 GB in the end (delta: 33.2 MB). Peak memory consumption was 33.2 MB. Max. memory is 11.5 GB. * BuchiAutomizer took 1328.58 ms. Allocated memory is still 1.2 GB. Free memory was 1.1 GB in the beginning and 993.1 MB in the end (delta: 87.9 MB). Peak memory consumption was 87.9 MB. Max. memory is 11.5 GB. * Witness Printer took 70.01 ms. Allocated memory is still 1.2 GB. Free memory is still 993.1 MB. There was no memory consumed. 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 1.2s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.9s. 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: 25]: 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 {m_PipedOutputStream=2, NULL=2, NULL=0, \result=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4972740a=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@854ba4f=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@37924ee=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@78a1c1af=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22292895=0, m_connect_2=6, m_connect_1=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@44165e0b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32ee9345=0, this_sinkConnected=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@62874add=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6e6fcf2f=0, NULL=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@f82785d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45166317=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@334c7ea3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@58ca85df=0, NULL=0, NULL=0, NULL=0, NULL=4, P4=18, P3=17, P2=16, P1=19, m_close=3, m_write=4, m_flush=1, this_sink=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@18ff32ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ecdee0e=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6c486a8=0, NULL=0, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@636e0347=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4c36d790=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@164227e8=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@774b1785=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@46472afc=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@6494155a=0} - StatisticsResult: NonterminationArgumentStatistics Fixpoint - NonterminatingLassoResult [Line: 25]: Nonterminating execution Found a nonterminating execution for the following lasso shaped sequence of statements. Stem: [L7] int m_flush = 1; [L8] int m_PipedOutputStream = 2; [L9] int m_close = 3; [L10] int m_write = 4; [L11] int m_connect_1 = 5; [L12] int m_connect_2 = 6; [L17] int q = 0; [L18] int method_id; [L21] int this_sink = 0; [L22] int this_sinkConnected = 0; Loop: [L25] COND TRUE 1 [L28] int P1=__VERIFIER_nondet_int(); [L29] int P2=__VERIFIER_nondet_int(); [L30] int P3=__VERIFIER_nondet_int(); [L31] int P4=__VERIFIER_nondet_int(); [L35] COND TRUE q == 0 [L36] COND FALSE !(__VERIFIER_nondet_int()) End of lasso representation. RESULT: Ultimate proved your program to be incorrect! Received shutdown request...