./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 f4b24e32 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 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 --- Real Ultimate output --- This is Ultimate 0.2.2-?-f4b24e3 [2022-07-14 15:35:38,179 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-07-14 15:35:38,181 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-07-14 15:35:38,226 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-07-14 15:35:38,226 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-07-14 15:35:38,228 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-07-14 15:35:38,230 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-07-14 15:35:38,232 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-07-14 15:35:38,234 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-07-14 15:35:38,238 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-07-14 15:35:38,239 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-07-14 15:35:38,241 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-07-14 15:35:38,241 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-07-14 15:35:38,243 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-07-14 15:35:38,244 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-07-14 15:35:38,246 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-07-14 15:35:38,247 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-07-14 15:35:38,249 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-07-14 15:35:38,250 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-07-14 15:35:38,256 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-07-14 15:35:38,258 INFO L181 SettingsManager]: Resetting HornVerifier preferences to default values [2022-07-14 15:35:38,260 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-07-14 15:35:38,261 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-07-14 15:35:38,262 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-07-14 15:35:38,263 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-07-14 15:35:38,270 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-07-14 15:35:38,270 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-07-14 15:35:38,270 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-07-14 15:35:38,272 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-07-14 15:35:38,272 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-07-14 15:35:38,273 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-07-14 15:35:38,273 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-07-14 15:35:38,275 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-07-14 15:35:38,275 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-07-14 15:35:38,276 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-07-14 15:35:38,277 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-07-14 15:35:38,277 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-07-14 15:35:38,278 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-07-14 15:35:38,278 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-07-14 15:35:38,278 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-07-14 15:35:38,279 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-07-14 15:35:38,280 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-07-14 15:35:38,282 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2022-07-14 15:35:38,312 INFO L113 SettingsManager]: Loading preferences was successful [2022-07-14 15:35:38,313 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-07-14 15:35:38,313 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-07-14 15:35:38,313 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-07-14 15:35:38,315 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-07-14 15:35:38,315 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-07-14 15:35:38,315 INFO L138 SettingsManager]: * Use SBE=true [2022-07-14 15:35:38,316 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2022-07-14 15:35:38,316 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2022-07-14 15:35:38,316 INFO L138 SettingsManager]: * Use old map elimination=false [2022-07-14 15:35:38,317 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2022-07-14 15:35:38,317 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2022-07-14 15:35:38,317 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2022-07-14 15:35:38,317 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-07-14 15:35:38,317 INFO L138 SettingsManager]: * sizeof long=4 [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2022-07-14 15:35:38,318 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2022-07-14 15:35:38,319 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2022-07-14 15:35:38,319 INFO L138 SettingsManager]: * sizeof long double=12 [2022-07-14 15:35:38,319 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-07-14 15:35:38,319 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2022-07-14 15:35:38,319 INFO L138 SettingsManager]: * Use constant arrays=true [2022-07-14 15:35:38,320 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2022-07-14 15:35:38,320 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-07-14 15:35:38,320 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-07-14 15:35:38,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-07-14 15:35:38,321 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-07-14 15:35:38,322 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2022-07-14 15:35:38,322 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 4f9f01bde8fda2c75630f127009f2a9b60883250862a9d96b52c34a46b69c1e5 [2022-07-14 15:35:38,556 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-07-14 15:35:38,579 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-07-14 15:35:38,582 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-07-14 15:35:38,583 INFO L271 PluginConnector]: Initializing CDTParser... [2022-07-14 15:35:38,584 INFO L275 PluginConnector]: CDTParser initialized [2022-07-14 15:35:38,585 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/psyco/psyco_io_1.c [2022-07-14 15:35:38,649 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a46f6883/71e84cbdfc2448c9bbc9ad87d638efe4/FLAG7943941d8 [2022-07-14 15:35:39,026 INFO L306 CDTParser]: Found 1 translation units. [2022-07-14 15:35:39,028 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_io_1.c [2022-07-14 15:35:39,034 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a46f6883/71e84cbdfc2448c9bbc9ad87d638efe4/FLAG7943941d8 [2022-07-14 15:35:39,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/1a46f6883/71e84cbdfc2448c9bbc9ad87d638efe4 [2022-07-14 15:35:39,050 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-07-14 15:35:39,052 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2022-07-14 15:35:39,054 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-07-14 15:35:39,055 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-07-14 15:35:39,058 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-07-14 15:35:39,058 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,059 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6da11208 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39, skipping insertion in model container [2022-07-14 15:35:39,059 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,065 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-07-14 15:35:39,104 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-07-14 15:35:39,272 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-07-14 15:35:39,273 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:35:39,281 INFO L203 MainTranslator]: Completed pre-run [2022-07-14 15:35:39,307 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/psyco/psyco_io_1.c[11478,11491] [2022-07-14 15:35:39,308 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-07-14 15:35:39,320 INFO L208 MainTranslator]: Completed translation [2022-07-14 15:35:39,321 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39 WrapperNode [2022-07-14 15:35:39,321 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-07-14 15:35:39,322 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-07-14 15:35:39,322 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-07-14 15:35:39,322 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-07-14 15:35:39,328 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,334 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,354 INFO L137 Inliner]: procedures = 12, calls = 7, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 236 [2022-07-14 15:35:39,354 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-07-14 15:35:39,355 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-07-14 15:35:39,356 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-07-14 15:35:39,356 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-07-14 15:35:39,362 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,362 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,364 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,364 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,369 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,375 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,377 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,379 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-07-14 15:35:39,380 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-07-14 15:35:39,380 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-07-14 15:35:39,394 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-07-14 15:35:39,396 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (1/1) ... [2022-07-14 15:35:39,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2022-07-14 15:35:39,414 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-07-14 15:35:39,431 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (exit command is (exit), workingDir is null) [2022-07-14 15:35:39,458 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Waiting until timeout for monitored process [2022-07-14 15:35:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-07-14 15:35:39,486 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-07-14 15:35:39,486 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-07-14 15:35:39,487 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-07-14 15:35:39,537 INFO L234 CfgBuilder]: Building ICFG [2022-07-14 15:35:39,538 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-07-14 15:35:39,781 INFO L275 CfgBuilder]: Performing block encoding [2022-07-14 15:35:39,787 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-07-14 15:35:39,787 INFO L299 CfgBuilder]: Removed 5 assume(true) statements. [2022-07-14 15:35:39,789 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:39 BoogieIcfgContainer [2022-07-14 15:35:39,790 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-07-14 15:35:39,791 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2022-07-14 15:35:39,799 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2022-07-14 15:35:39,802 INFO L275 PluginConnector]: BuchiAutomizer initialized [2022-07-14 15:35:39,802 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:39,802 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 14.07 03:35:39" (1/3) ... [2022-07-14 15:35:39,803 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767f5f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:35:39, skipping insertion in model container [2022-07-14 15:35:39,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:39,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.07 03:35:39" (2/3) ... [2022-07-14 15:35:39,804 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@767f5f94 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 14.07 03:35:39, skipping insertion in model container [2022-07-14 15:35:39,804 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2022-07-14 15:35:39,804 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:39" (3/3) ... [2022-07-14 15:35:39,806 INFO L354 chiAutomizerObserver]: Analyzing ICFG psyco_io_1.c [2022-07-14 15:35:39,869 INFO L255 stractBuchiCegarLoop]: Interprodecural is true [2022-07-14 15:35:39,869 INFO L256 stractBuchiCegarLoop]: Hoare is false [2022-07-14 15:35:39,870 INFO L257 stractBuchiCegarLoop]: Compute interpolants for ForwardPredicates [2022-07-14 15:35:39,870 INFO L258 stractBuchiCegarLoop]: Backedges is STRAIGHT_LINE [2022-07-14 15:35:39,870 INFO L259 stractBuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2022-07-14 15:35:39,870 INFO L260 stractBuchiCegarLoop]: Difference is false [2022-07-14 15:35:39,870 INFO L261 stractBuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2022-07-14 15:35:39,871 INFO L265 stractBuchiCegarLoop]: ======== Iteration 0 == of CEGAR loop == BuchiAutomatonCegarLoop ======== [2022-07-14 15:35:39,875 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:39,905 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-07-14 15:35:39,905 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:39,905 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:39,911 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:35:39,912 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-14 15:35:39,912 INFO L287 stractBuchiCegarLoop]: ======== Iteration 1 ============ [2022-07-14 15:35:39,914 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:39,928 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 53 [2022-07-14 15:35:39,929 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:39,929 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:39,930 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1] [2022-07-14 15:35:39,930 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1] [2022-07-14 15:35:39,936 INFO L752 eck$LassoCheckResult]: Stem: 44#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);~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; 36#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 11#L25-2true [2022-07-14 15:35:39,937 INFO L754 eck$LassoCheckResult]: Loop: 11#L25-2true goto; 9#L337true assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 41#L35true assume !(0 == main_~q~0#1); 55#L55true assume !(1 == main_~q~0#1); 52#L107true assume !(2 == main_~q~0#1); 66#L223true assume !(3 == main_~q~0#1); 11#L25-2true [2022-07-14 15:35:39,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:39,959 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2022-07-14 15:35:39,971 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:39,972 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [79505464] [2022-07-14 15:35:39,972 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:39,973 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,071 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,115 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:40,117 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:40,118 INFO L85 PathProgramCache]: Analyzing trace with hash 1070475851, now seen corresponding path program 1 times [2022-07-14 15:35:40,118 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:40,119 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1003776663] [2022-07-14 15:35:40,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:40,120 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,135 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:40,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,148 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:40,150 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:40,150 INFO L85 PathProgramCache]: Analyzing trace with hash 150525069, now seen corresponding path program 1 times [2022-07-14 15:35:40,150 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:40,150 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109124897] [2022-07-14 15:35:40,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:40,151 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-07-14 15:35:40,235 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-07-14 15:35:40,235 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-07-14 15:35:40,236 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109124897] [2022-07-14 15:35:40,236 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109124897] provided 1 perfect and 0 imperfect interpolant sequences [2022-07-14 15:35:40,236 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-07-14 15:35:40,237 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-07-14 15:35:40,237 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408483665] [2022-07-14 15:35:40,238 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-07-14 15:35:40,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-07-14 15:35:40,355 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-07-14 15:35:40,355 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-07-14 15:35:40,357 INFO L87 Difference]: Start difference. First operand has 67 states, 66 states have (on average 1.9090909090909092) internal successors, (126), 66 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:40,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-07-14 15:35:40,412 INFO L93 Difference]: Finished difference Result 66 states and 102 transitions. [2022-07-14 15:35:40,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-07-14 15:35:40,418 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 66 states and 102 transitions. [2022-07-14 15:35:40,420 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-07-14 15:35:40,423 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 66 states to 52 states and 77 transitions. [2022-07-14 15:35:40,424 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 52 [2022-07-14 15:35:40,425 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 52 [2022-07-14 15:35:40,425 INFO L73 IsDeterministic]: Start isDeterministic. Operand 52 states and 77 transitions. [2022-07-14 15:35:40,426 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2022-07-14 15:35:40,426 INFO L369 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-07-14 15:35:40,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52 states and 77 transitions. [2022-07-14 15:35:40,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52 to 52. [2022-07-14 15:35:40,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52 states, 52 states have (on average 1.4807692307692308) internal successors, (77), 51 states have internal predecessors, (77), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-07-14 15:35:40,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52 states to 52 states and 77 transitions. [2022-07-14 15:35:40,448 INFO L392 hiAutomatonCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-07-14 15:35:40,448 INFO L374 stractBuchiCegarLoop]: Abstraction has 52 states and 77 transitions. [2022-07-14 15:35:40,449 INFO L287 stractBuchiCegarLoop]: ======== Iteration 2 ============ [2022-07-14 15:35:40,449 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 52 states and 77 transitions. [2022-07-14 15:35:40,450 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 49 [2022-07-14 15:35:40,450 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2022-07-14 15:35:40,450 INFO L119 BuchiIsEmpty]: Starting construction of run [2022-07-14 15:35:40,450 INFO L179 hiAutomatonCegarLoop]: Counterexample stem histogram [1, 1, 1] [2022-07-14 15:35:40,450 INFO L180 hiAutomatonCegarLoop]: Counterexample loop histogram [1, 1, 1] [2022-07-14 15:35:40,451 INFO L752 eck$LassoCheckResult]: Stem: 187#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true;#NULL.base, #NULL.offset := 0, 0;assume 0 == #valid[0];assume 0 < #StackHeapBarrier;call #Ultimate.allocInit(2, 1);call write~init~int(48, 1, 0, 1);call write~init~int(0, 1, 1, 1);call #Ultimate.allocInit(13, 2);call #Ultimate.allocInit(12, 3);~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; 182#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~nondet5#1, main_#t~nondet6#1, main_#t~nondet7#1, main_#t~nondet8#1, main_#t~nondet9#1, main_#t~nondet10#1, main_#t~nondet11#1, main_#t~nondet12#1, main_#t~nondet13#1, main_#t~nondet14#1, main_#t~nondet15#1, main_#t~nondet16#1, main_#t~nondet17#1, main_#t~nondet18#1, main_#t~nondet19#1, main_#t~nondet20#1, main_#t~nondet21#1, main_#t~nondet22#1, main_#t~nondet23#1, main_#t~nondet24#1, main_#t~nondet25#1, main_~P1~0#1, main_~P2~0#1, main_~P3~0#1, main_~P4~0#1, main_~q~0#1, main_~method_id~0#1, main_~this_sink~0#1, main_~this_sinkConnected~0#1;main_~q~0#1 := 0;havoc main_~method_id~0#1;main_~this_sink~0#1 := 0;main_~this_sinkConnected~0#1 := 0; 154#L25-2 goto; 152#L337 [2022-07-14 15:35:40,451 INFO L754 eck$LassoCheckResult]: Loop: 152#L337 assume !false;main_~P1~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1;main_~P2~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~P3~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1;main_~P4~0#1 := main_#t~nondet7#1;havoc main_#t~nondet7#1; 153#L35 assume 0 == main_~q~0#1; 186#L36 assume !(0 != main_#t~nondet8#1);havoc main_#t~nondet8#1; 152#L337 [2022-07-14 15:35:40,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:40,452 INFO L85 PathProgramCache]: Analyzing trace with hash 29859, now seen corresponding path program 1 times [2022-07-14 15:35:40,452 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:40,452 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1170198401] [2022-07-14 15:35:40,452 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:40,453 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,460 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,476 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:40,477 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:40,477 INFO L85 PathProgramCache]: Analyzing trace with hash 40826, now seen corresponding path program 1 times [2022-07-14 15:35:40,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:40,478 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1187589536] [2022-07-14 15:35:40,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:40,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,482 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:40,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,486 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:40,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-07-14 15:35:40,486 INFO L85 PathProgramCache]: Analyzing trace with hash 889540504, now seen corresponding path program 1 times [2022-07-14 15:35:40,487 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-07-14 15:35:40,487 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2092748197] [2022-07-14 15:35:40,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-07-14 15:35:40,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-07-14 15:35:40,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,494 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-07-14 15:35:40,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-07-14 15:35:40,502 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-07-14 15:35:40,707 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer CFG 14.07 03:35:40 BoogieIcfgContainer [2022-07-14 15:35:40,708 INFO L132 PluginConnector]: ------------------------ END BuchiAutomizer---------------------------- [2022-07-14 15:35:40,708 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2022-07-14 15:35:40,708 INFO L271 PluginConnector]: Initializing Witness Printer... [2022-07-14 15:35:40,709 INFO L275 PluginConnector]: Witness Printer initialized [2022-07-14 15:35:40,709 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.07 03:35:39" (3/4) ... [2022-07-14 15:35:40,711 INFO L134 WitnessPrinter]: Generating witness for non-termination counterexample [2022-07-14 15:35:40,750 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2022-07-14 15:35:40,750 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2022-07-14 15:35:40,751 INFO L158 Benchmark]: Toolchain (without parser) took 1698.77ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.8MB in the beginning and 56.4MB in the end (delta: -7.5MB). Peak memory consumption was 7.6MB. Max. memory is 16.1GB. [2022-07-14 15:35:40,751 INFO L158 Benchmark]: CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:35:40,752 INFO L158 Benchmark]: CACSL2BoogieTranslator took 267.17ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.6MB in the beginning and 73.5MB in the end (delta: -24.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. [2022-07-14 15:35:40,752 INFO L158 Benchmark]: Boogie Procedure Inliner took 32.34ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 71.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:35:40,752 INFO L158 Benchmark]: Boogie Preprocessor took 24.05ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2022-07-14 15:35:40,753 INFO L158 Benchmark]: RCFGBuilder took 410.09ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 56.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. [2022-07-14 15:35:40,755 INFO L158 Benchmark]: BuchiAutomizer took 917.00ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 58.2MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:35:40,755 INFO L158 Benchmark]: Witness Printer took 41.80ms. Allocated memory is still 98.6MB. Free memory was 57.7MB in the beginning and 56.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. [2022-07-14 15:35:40,757 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18ms. Allocated memory is still 81.8MB. Free memory was 62.0MB in the beginning and 62.0MB in the end (delta: 26.2kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 267.17ms. Allocated memory was 81.8MB in the beginning and 98.6MB in the end (delta: 16.8MB). Free memory was 48.6MB in the beginning and 73.5MB in the end (delta: -24.9MB). Peak memory consumption was 7.8MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 32.34ms. Allocated memory is still 98.6MB. Free memory was 73.5MB in the beginning and 71.6MB in the end (delta: 1.9MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.05ms. Allocated memory is still 98.6MB. Free memory was 71.6MB in the beginning and 70.3MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 410.09ms. Allocated memory is still 98.6MB. Free memory was 70.3MB in the beginning and 56.4MB in the end (delta: 13.8MB). Peak memory consumption was 12.6MB. Max. memory is 16.1GB. * BuchiAutomizer took 917.00ms. Allocated memory is still 98.6MB. Free memory was 56.4MB in the beginning and 58.2MB in the end (delta: -1.8MB). There was no memory consumed. Max. memory is 16.1GB. * Witness Printer took 41.80ms. Allocated memory is still 98.6MB. Free memory was 57.7MB in the beginning and 56.4MB in the end (delta: 1.4MB). There was no memory consumed. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Constructed decomposition of program Your program was decomposed into 1 terminating modules (1 trivial, 0 deterministic, 0 nondeterministic) and one nonterminating remainder module.1 modules have a trivial ranking function, the largest among these consists of 3 locations. The remainder module has 52 locations. - StatisticsResult: Timing statistics BüchiAutomizer plugin needed 0.8s and 2 iterations. TraceHistogramMax:1. Analysis of lassos took 0.6s. 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 -1 states and ocurred in iteration -1. Nontrivial modules had stage [0, 0, 0, 0, 0]. InterpolantCoveringCapabilityFinite: 0/0 InterpolantCoveringCapabilityBuchi: 0/0 HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 4 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 4 mSDsluCounter, 171 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 73 mSDsCounter, 1 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 22 IncrementalHoareTripleChecker+Invalid, 23 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1 mSolverCounterUnsat, 98 mSDtfsCounter, 22 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown 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 InitialAbstractionConstructionTime: 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=0, this_sinkConnected=0, this_sink=0, NULL=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@30c52c78=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@498527ef=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@32fea24f=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@45710cf2=0, m_connect_2=6, m_connect_1=5, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1e5cecbb=0, P4=7, method_id=0, P3=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@4cea7cdf=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@e2e184a=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@1cfb92f2=9, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@213cbf3a=10, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@86bd787=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@50397bcd=7, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@352da4e1=8, q=0, P2=10, \result=0, m_close=3, m_write=4, m_flush=1, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@41bbc46b=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@5ea84407=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@c461bb2=0, NULL=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@173afee4=0, P1=8, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@39f9d022=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@9cf81cd=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@3d855027=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@2111b3ec=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@628f5feb=0, org.eclipse.cdt.internal.core.dom.parser.c.CASTFunctionCallExpression@22825080=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! [2022-07-14 15:35:40,789 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Writing human readable error path to file UltimateCounterExample.errorpath Result: FALSE(TERM)