./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 54858612 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerTermination.xml -i ../sv-benchmarks/c/psyco/psyco_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 0.2.0-5485861 [2020-10-26 04:44:25,427 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-26 04:44:25,432 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-26 04:44:25,470 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-26 04:44:25,470 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-26 04:44:25,472 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-26 04:44:25,474 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-26 04:44:25,476 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-26 04:44:25,479 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-26 04:44:25,480 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-26 04:44:25,481 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-26 04:44:25,483 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-26 04:44:25,484 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-26 04:44:25,485 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-26 04:44:25,487 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-26 04:44:25,488 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-26 04:44:25,490 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-26 04:44:25,491 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-26 04:44:25,494 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-26 04:44:25,497 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-26 04:44:25,499 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-26 04:44:25,501 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-26 04:44:25,503 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-26 04:44:25,504 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-26 04:44:25,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-26 04:44:25,508 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-26 04:44:25,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-26 04:44:25,510 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-26 04:44:25,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-26 04:44:25,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-26 04:44:25,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-26 04:44:25,514 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-26 04:44:25,515 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-26 04:44:25,516 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-26 04:44:25,517 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-26 04:44:25,518 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-26 04:44:25,519 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-26 04:44:25,520 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-26 04:44:25,520 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-26 04:44:25,521 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-26 04:44:25,522 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-26 04:44:25,528 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2020-10-26 04:44:25,568 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-26 04:44:25,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-26 04:44:25,570 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-26 04:44:25,571 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-26 04:44:25,571 INFO L138 SettingsManager]: * Use SBE=true [2020-10-26 04:44:25,572 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2020-10-26 04:44:25,572 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2020-10-26 04:44:25,572 INFO L138 SettingsManager]: * Use old map elimination=false [2020-10-26 04:44:25,573 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2020-10-26 04:44:25,573 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2020-10-26 04:44:25,573 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2020-10-26 04:44:25,574 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-26 04:44:25,574 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-26 04:44:25,574 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2020-10-26 04:44:25,574 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-26 04:44:25,575 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-26 04:44:25,575 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-26 04:44:25,575 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2020-10-26 04:44:25,576 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2020-10-26 04:44:25,576 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2020-10-26 04:44:25,576 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-26 04:44:25,576 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-26 04:44:25,576 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2020-10-26 04:44:25,577 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-26 04:44:25,577 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2020-10-26 04:44:25,577 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-26 04:44:25,578 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-26 04:44:25,578 INFO L138 SettingsManager]: * To the following directory=/home/matthias/ultimate/dump [2020-10-26 04:44:25,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-26 04:44:25,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-26 04:44:25,579 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-26 04:44:25,579 INFO L138 SettingsManager]: * Dump automata to the following directory=/home/matthias/ultimate/dump/auto [2020-10-26 04:44:25,580 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2020-10-26 04:44:25,581 INFO L138 SettingsManager]: * TransformationType=MODULO_NEIGHBOR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 0e42a14d02446d341c51d21bb42c9bd175f1ebef [2020-10-26 04:44:25,999 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-26 04:44:26,048 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-26 04:44:26,053 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-26 04:44:26,055 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-26 04:44:26,058 INFO L275 PluginConnector]: CDTParser initialized [2020-10-26 04:44:26,059 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_io_1.c [2020-10-26 04:44:26,142 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a39b783/ba70d3f758f347a486e412456e559697/FLAG3aba6e34f [2020-10-26 04:44:26,763 INFO L306 CDTParser]: Found 1 translation units. [2020-10-26 04:44:26,764 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_io_1.c [2020-10-26 04:44:26,779 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a39b783/ba70d3f758f347a486e412456e559697/FLAG3aba6e34f [2020-10-26 04:44:27,060 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/54a39b783/ba70d3f758f347a486e412456e559697 [2020-10-26 04:44:27,064 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-26 04:44:27,074 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-10-26 04:44:27,079 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-26 04:44:27,079 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-26 04:44:27,088 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-26 04:44:27,089 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,093 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@69ae8b8c and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27, skipping insertion in model container [2020-10-26 04:44:27,093 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,102 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-26 04:44:27,161 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-26 04:44:27,346 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:44:27,371 INFO L203 MainTranslator]: Completed pre-run [2020-10-26 04:44:27,454 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-26 04:44:27,485 INFO L208 MainTranslator]: Completed translation [2020-10-26 04:44:27,486 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27 WrapperNode [2020-10-26 04:44:27,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-26 04:44:27,491 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-10-26 04:44:27,491 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-10-26 04:44:27,492 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-10-26 04:44:27,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,527 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,589 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-10-26 04:44:27,591 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-26 04:44:27,591 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-26 04:44:27,592 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-26 04:44:27,602 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,603 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,620 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,621 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,631 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,646 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,648 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... [2020-10-26 04:44:27,652 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-26 04:44:27,653 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-26 04:44:27,654 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-26 04:44:27,654 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-26 04:44:27,655 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2020-10-26 04:44:27,745 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-26 04:44:27,746 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-26 04:44:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-26 04:44:27,746 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-26 04:44:28,598 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-26 04:44:28,598 INFO L298 CfgBuilder]: Removed 11 assume(true) statements. [2020-10-26 04:44:28,600 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:28 BoogieIcfgContainer [2020-10-26 04:44:28,601 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-26 04:44:28,602 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2020-10-26 04:44:28,602 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2020-10-26 04:44:28,606 INFO L275 PluginConnector]: BuchiAutomizer initialized [2020-10-26 04:44:28,607 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:28,607 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 26.10 04:44:27" (1/3) ... [2020-10-26 04:44:28,608 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25b2e656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:44:28, skipping insertion in model container [2020-10-26 04:44:28,608 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:28,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 26.10 04:44:27" (2/3) ... [2020-10-26 04:44:28,609 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25b2e656 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 26.10 04:44:28, skipping insertion in model container [2020-10-26 04:44:28,609 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2020-10-26 04:44:28,609 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:28" (3/3) ... [2020-10-26 04:44:28,611 INFO L373 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2020-10-26 04:44:28,674 INFO L359 BuchiCegarLoop]: Interprodecural is true [2020-10-26 04:44:28,674 INFO L360 BuchiCegarLoop]: Hoare is false [2020-10-26 04:44:28,675 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2020-10-26 04:44:28,675 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-26 04:44:28,675 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-26 04:44:28,675 INFO L364 BuchiCegarLoop]: Difference is false [2020-10-26 04:44:28,675 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-26 04:44:28,675 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2020-10-26 04:44:28,692 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-10-26 04:44:28,719 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2020-10-26 04:44:28,719 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:28,719 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:28,728 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:44:28,729 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:44:28,729 INFO L427 BuchiCegarLoop]: ======== Iteration 1============ [2020-10-26 04:44:28,729 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 68 states. [2020-10-26 04:44:28,735 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2020-10-26 04:44:28,735 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:28,735 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:28,736 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2020-10-26 04:44:28,736 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2020-10-26 04:44:28,744 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 [2020-10-26 04:44:28,745 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 [2020-10-26 04:44:28,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:28,752 INFO L82 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2020-10-26 04:44:28,763 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:28,763 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1742009055] [2020-10-26 04:44:28,763 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:28,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:28,873 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:28,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:28,892 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:28,916 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:28,918 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:28,918 INFO L82 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2020-10-26 04:44:28,918 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:28,919 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1476531550] [2020-10-26 04:44:28,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:28,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:28,933 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:28,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:28,945 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:28,952 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:28,956 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:28,956 INFO L82 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2020-10-26 04:44:28,956 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:28,957 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [646350868] [2020-10-26 04:44:28,960 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:28,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-26 04:44:29,088 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-26 04:44:29,089 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [646350868] [2020-10-26 04:44:29,091 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-26 04:44:29,091 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-26 04:44:29,092 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [568545766] [2020-10-26 04:44:29,214 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-10-26 04:44:29,231 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-26 04:44:29,232 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-26 04:44:29,234 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-10-26 04:44:29,330 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-26 04:44:29,330 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2020-10-26 04:44:29,331 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-26 04:44:29,333 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2020-10-26 04:44:29,338 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-26 04:44:29,343 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2020-10-26 04:44:29,345 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2020-10-26 04:44:29,345 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2020-10-26 04:44:29,346 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2020-10-26 04:44:29,347 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2020-10-26 04:44:29,347 INFO L691 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-26 04:44:29,367 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2020-10-26 04:44:29,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2020-10-26 04:44:29,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 52 states. [2020-10-26 04:44:29,383 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2020-10-26 04:44:29,384 INFO L714 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-26 04:44:29,384 INFO L594 BuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2020-10-26 04:44:29,384 INFO L427 BuchiCegarLoop]: ======== Iteration 2============ [2020-10-26 04:44:29,384 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2020-10-26 04:44:29,386 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2020-10-26 04:44:29,386 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2020-10-26 04:44:29,387 INFO L119 BuchiIsEmpty]: Starting construction of run [2020-10-26 04:44:29,387 INFO L852 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2020-10-26 04:44:29,387 INFO L853 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2020-10-26 04:44:29,387 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 [2020-10-26 04:44:29,387 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 [2020-10-26 04:44:29,388 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:29,388 INFO L82 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2020-10-26 04:44:29,388 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:29,389 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1214623414] [2020-10-26 04:44:29,389 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:29,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,403 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,416 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,428 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:29,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:29,429 INFO L82 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2020-10-26 04:44:29,430 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:29,430 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028332154] [2020-10-26 04:44:29,430 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:29,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,435 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,439 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,442 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:29,443 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-26 04:44:29,443 INFO L82 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2020-10-26 04:44:29,443 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-10-26 04:44:29,443 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [82425662] [2020-10-26 04:44:29,443 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-26 04:44:29,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,457 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-26 04:44:29,485 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-26 04:44:29,496 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2020-10-26 04:44:29,951 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 73 [2020-10-26 04:44:30,146 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 73 [2020-10-26 04:44:30,179 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 26.10 04:44:30 BoogieIcfgContainer [2020-10-26 04:44:30,179 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2020-10-26 04:44:30,180 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-10-26 04:44:30,180 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-10-26 04:44:30,180 INFO L275 PluginConnector]: Witness Printer initialized [2020-10-26 04:44:30,181 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 26.10 04:44:28" (3/4) ... [2020-10-26 04:44:30,184 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2020-10-26 04:44:30,235 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-10-26 04:44:30,236 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-10-26 04:44:30,238 INFO L168 Benchmark]: Toolchain (without parser) took 3168.73 ms. Allocated memory was 46.1 MB in the beginning and 69.2 MB in the end (delta: 23.1 MB). Free memory was 23.0 MB in the beginning and 39.7 MB in the end (delta: -16.7 MB). Peak memory consumption was 9.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,238 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 35.7 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. [2020-10-26 04:44:30,239 INFO L168 Benchmark]: CACSL2BoogieTranslator took 410.03 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 20.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,240 INFO L168 Benchmark]: Boogie Procedure Inliner took 99.23 ms. Allocated memory is still 46.1 MB. Free memory was 20.0 MB in the beginning and 30.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,241 INFO L168 Benchmark]: Boogie Preprocessor took 61.47 ms. Allocated memory is still 46.1 MB. Free memory was 30.2 MB in the beginning and 28.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,241 INFO L168 Benchmark]: RCFGBuilder took 947.38 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 24.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,242 INFO L168 Benchmark]: BuchiAutomizer took 1577.21 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 24.4 MB in the beginning and 41.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,243 INFO L168 Benchmark]: Witness Printer took 56.19 ms. Allocated memory is still 69.2 MB. Free memory was 41.4 MB in the beginning and 39.7 MB in the end (delta: 1.7 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. [2020-10-26 04:44:30,247 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 35.7 MB. Free memory was 20.0 MB in the beginning and 19.9 MB in the end (delta: 26.5 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 410.03 ms. Allocated memory is still 46.1 MB. Free memory was 22.3 MB in the beginning and 20.0 MB in the end (delta: 2.3 MB). Peak memory consumption was 3.4 MB. Max. memory is 16.1 GB. * Boogie Procedure Inliner took 99.23 ms. Allocated memory is still 46.1 MB. Free memory was 20.0 MB in the beginning and 30.2 MB in the end (delta: -10.2 MB). Peak memory consumption was 4.8 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 61.47 ms. Allocated memory is still 46.1 MB. Free memory was 30.2 MB in the beginning and 28.6 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.1 GB. * RCFGBuilder took 947.38 ms. Allocated memory was 46.1 MB in the beginning and 56.6 MB in the end (delta: 10.5 MB). Free memory was 28.6 MB in the beginning and 24.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 14.0 MB. Max. memory is 16.1 GB. * BuchiAutomizer took 1577.21 ms. Allocated memory was 56.6 MB in the beginning and 69.2 MB in the end (delta: 12.6 MB). Free memory was 24.4 MB in the beginning and 41.4 MB in the end (delta: -16.9 MB). Peak memory consumption was 8.2 MB. Max. memory is 16.1 GB. * Witness Printer took 56.19 ms. Allocated memory is still 69.2 MB. Free memory was 41.4 MB in the beginning and 39.7 MB in the end (delta: 1.7 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 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 1.4s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 1.2s. 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: 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@6551cfca=19, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b517f6d=16, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50c06517=17, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@7d04191e=18, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1640b6eb=0, m_connect_2=6, m_connect_1=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4df2d9e2=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@31ad8b6c=0, this_sinkConnected=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@19edee51=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@21a5eab=0, NULL=3, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@26da1959=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@75e13848=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@28f01303=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3b941f18=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@59fcbac3=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@457ac7b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@72be55c6=0, NULL=0, q=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@835ca1f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2f756ad2=0, method_id=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2201b23c=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e973e1d=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@271a6dc0=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@278a1c80=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...