./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for termination Using default analysis Version 3a877d22 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/product-lines/minepump_spec2_product43.cil.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 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:18:17,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:18:17,262 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:18:17,298 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:18:17,299 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:18:17,303 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:18:17,304 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:18:17,310 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:18:17,312 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:18:17,317 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:18:17,318 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:18:17,319 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:18:17,319 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:18:17,321 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:18:17,323 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:18:17,324 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:18:17,328 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:18:17,329 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:18:17,330 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:18:17,333 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:18:17,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:18:17,339 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:18:17,340 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:18:17,341 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:18:17,345 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:18:17,345 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:18:17,346 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:18:17,347 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:18:17,348 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:18:17,348 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:18:17,349 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:18:17,350 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:18:17,351 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:18:17,352 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:18:17,353 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:18:17,353 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:18:17,354 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:18:17,354 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:18:17,355 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:18:17,355 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:18:17,356 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:18:17,357 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:18:17,395 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:18:17,411 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:18:17,412 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:18:17,412 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:18:17,414 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:18:17,414 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:18:17,414 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:18:17,414 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:18:17,414 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:18:17,414 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:18:17,414 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:18:17,415 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:18:17,415 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:18:17,415 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:18:17,415 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:18:17,415 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:18:17,416 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:18:17,417 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:18:17,417 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:18:17,417 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:18:17,417 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:18:17,417 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:18:17,417 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:18:17,418 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:18:17,418 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:18:17,418 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:18:17,418 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:18:17,419 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:18:17,419 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 80c186986e830d4bb291929eac4e7624996dc1953e9c0441022d003e4def396a [2021-12-15 17:18:17,681 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:18:17,706 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:18:17,708 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:18:17,709 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:18:17,710 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:18:17,711 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-12-15 17:18:17,768 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745e3ce1a/c567a0cb10214599aced0923e94cef17/FLAG159bf3194 [2021-12-15 17:18:18,304 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:18:18,305 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec2_product43.cil.c [2021-12-15 17:18:18,316 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745e3ce1a/c567a0cb10214599aced0923e94cef17/FLAG159bf3194 [2021-12-15 17:18:18,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/745e3ce1a/c567a0cb10214599aced0923e94cef17 [2021-12-15 17:18:18,822 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:18:18,825 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:18:18,826 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:18:18,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:18:18,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:18:18,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:18:18" (1/1) ... [2021-12-15 17:18:18,830 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@67600c8b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:18, skipping insertion in model container [2021-12-15 17:18:18,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:18:18" (1/1) ... [2021-12-15 17:18:18,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:18:18,918 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:18:19,357 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/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2021-12-15 17:18:19,359 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:18:19,380 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:18:19,479 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/product-lines/minepump_spec2_product43.cil.c[18403,18416] [2021-12-15 17:18:19,480 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:18:19,524 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:18:19,524 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19 WrapperNode [2021-12-15 17:18:19,525 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:18:19,526 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:18:19,526 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:18:19,526 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:18:19,532 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,562 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,652 INFO L137 Inliner]: procedures = 55, calls = 154, calls flagged for inlining = 51, calls inlined = 59, statements flattened = 475 [2021-12-15 17:18:19,655 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:18:19,656 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:18:19,656 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:18:19,657 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:18:19,664 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,664 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,674 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,680 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,686 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,757 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,760 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,766 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:18:19,774 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:18:19,774 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:18:19,775 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:18:19,776 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (1/1) ... [2021-12-15 17:18:19,793 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:18:19,804 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:18:19,820 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) [2021-12-15 17:18:19,829 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 [2021-12-15 17:18:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:18:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:18:19,857 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:18:19,857 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:18:19,970 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:18:19,971 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:18:20,421 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:18:20,427 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:18:20,428 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 17:18:20,430 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:18:20 BoogieIcfgContainer [2021-12-15 17:18:20,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:18:20,432 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:18:20,433 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:18:20,436 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:18:20,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:18:20,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:18:18" (1/3) ... [2021-12-15 17:18:20,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@605d8d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:18:20, skipping insertion in model container [2021-12-15 17:18:20,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:18:20,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:18:19" (2/3) ... [2021-12-15 17:18:20,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@605d8d07 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:18:20, skipping insertion in model container [2021-12-15 17:18:20,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:18:20,439 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:18:20" (3/3) ... [2021-12-15 17:18:20,440 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec2_product43.cil.c [2021-12-15 17:18:20,484 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:18:20,484 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:18:20,485 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:18:20,485 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:18:20,485 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:18:20,485 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:18:20,485 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:18:20,485 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:18:20,505 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 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) [2021-12-15 17:18:20,538 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-12-15 17:18:20,539 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:18:20,539 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:18:20,548 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:18:20,549 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:18:20,549 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:18:20,550 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 125 states, 124 states have (on average 1.3790322580645162) internal successors, (171), 124 states have internal predecessors, (171), 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) [2021-12-15 17:18:20,567 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 80 [2021-12-15 17:18:20,568 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:18:20,568 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:18:20,569 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:18:20,569 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:18:20,578 INFO L791 eck$LassoCheckResult]: Stem: 114#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(31, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(13, 4);call #Ultimate.allocInit(7, 5);call write~init~int(44, 5, 0, 1);call write~init~int(77, 5, 1, 1);call write~init~int(101, 5, 2, 1);call write~init~int(116, 5, 3, 1);call write~init~int(104, 5, 4, 1);call write~init~int(58, 5, 5, 1);call write~init~int(0, 5, 6, 1);call #Ultimate.allocInit(5, 6);call write~init~int(67, 6, 0, 1);call write~init~int(82, 6, 1, 1);call write~init~int(73, 6, 2, 1);call write~init~int(84, 6, 3, 1);call write~init~int(0, 6, 4, 1);call #Ultimate.allocInit(3, 7);call write~init~int(79, 7, 0, 1);call write~init~int(75, 7, 1, 1);call write~init~int(0, 7, 2, 1);call #Ultimate.allocInit(2, 8);call write~init~int(41, 8, 0, 1);call write~init~int(0, 8, 1, 1);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(13, 21);call #Ultimate.allocInit(3, 22);call write~init~int(79, 22, 0, 1);call write~init~int(110, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(4, 23);call write~init~int(79, 23, 0, 1);call write~init~int(102, 23, 1, 1);call write~init~int(102, 23, 2, 1);call write~init~int(0, 23, 3, 1);call #Ultimate.allocInit(7, 24);call write~init~int(44, 24, 0, 1);call write~init~int(80, 24, 1, 1);call write~init~int(117, 24, 2, 1);call write~init~int(109, 24, 3, 1);call write~init~int(112, 24, 4, 1);call write~init~int(58, 24, 5, 1);call write~init~int(0, 24, 6, 1);call #Ultimate.allocInit(3, 25);call write~init~int(79, 25, 0, 1);call write~init~int(110, 25, 1, 1);call write~init~int(0, 25, 2, 1);call #Ultimate.allocInit(4, 26);call write~init~int(79, 26, 0, 1);call write~init~int(102, 26, 1, 1);call write~init~int(102, 26, 2, 1);call write~init~int(0, 26, 3, 1);call #Ultimate.allocInit(3, 27);call write~init~int(41, 27, 0, 1);call write~init~int(32, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(10, 28, 0, 1);call write~init~int(0, 28, 1, 1);~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~cleanupTimeShifts~0 := 4;~methAndRunningLastTime~0 := 0;~pumpRunning~0 := 0;~systemActive~0 := 1; 34#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret32#1, main_~retValue_acc~6#1, main_~tmp~3#1;havoc main_~retValue_acc~6#1;havoc main_~tmp~3#1;assume { :begin_inline_select_helpers } true; 28#L643true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 90#L636true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~8#1;havoc valid_product_~retValue_acc~8#1;valid_product_~retValue_acc~8#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~8#1; 112#L651true main_#t~ret32#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~3#1 := main_#t~ret32#1;havoc main_#t~ret32#1; 25#L607true assume 0 != main_~tmp~3#1;assume { :begin_inline_setup } true; 40#L578true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline___utac_acc__Specification2_spec__1 } true;~methAndRunningLastTime~0 := 0; 30#L664true assume { :end_inline___utac_acc__Specification2_spec__1 } true;assume { :begin_inline_test } true;havoc test_#t~nondet36#1, test_#t~nondet37#1, test_#t~nondet38#1, test_#t~nondet39#1, test_~splverifierCounter~0#1, test_~tmp~5#1, test_~tmp___0~1#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~5#1;havoc test_~tmp___0~1#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 116#L708-2true [2021-12-15 17:18:20,579 INFO L793 eck$LassoCheckResult]: Loop: 116#L708-2true assume !false; 111#L709true assume test_~splverifierCounter~0#1 < 4; 65#L710true test_~tmp~5#1 := test_#t~nondet36#1;havoc test_#t~nondet36#1; 87#L718true assume !(0 != test_~tmp~5#1); 120#L718-2true test_~tmp___0~1#1 := test_#t~nondet37#1;havoc test_#t~nondet37#1; 58#L728true assume !(0 != test_~tmp___0~1#1); 17#L728-2true test_~tmp___2~0#1 := test_#t~nondet38#1;havoc test_#t~nondet38#1; 50#L738true assume 0 != test_~tmp___2~0#1; 80#L744-2true assume { :begin_inline_timeShift } true; 81#L774true assume !(0 != ~pumpRunning~0); 51#L774-2true assume !(0 != ~systemActive~0); 14#L781-1true assume { :begin_inline___utac_acc__Specification2_spec__2 } true;havoc __utac_acc__Specification2_spec__2_#t~ret34#1, __utac_acc__Specification2_spec__2_#t~ret35#1, __utac_acc__Specification2_spec__2_~tmp~4#1, __utac_acc__Specification2_spec__2_~tmp___0~0#1;havoc __utac_acc__Specification2_spec__2_~tmp~4#1;havoc __utac_acc__Specification2_spec__2_~tmp___0~0#1;assume { :begin_inline_isMethaneLevelCritical } true;havoc isMethaneLevelCritical_#res#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;havoc isMethaneLevelCritical_~retValue_acc~0#1;isMethaneLevelCritical_~retValue_acc~0#1 := ~methaneLevelCritical~0;isMethaneLevelCritical_#res#1 := isMethaneLevelCritical_~retValue_acc~0#1; 68#L100-1true __utac_acc__Specification2_spec__2_#t~ret34#1 := isMethaneLevelCritical_#res#1;assume { :end_inline_isMethaneLevelCritical } true;__utac_acc__Specification2_spec__2_~tmp~4#1 := __utac_acc__Specification2_spec__2_#t~ret34#1;havoc __utac_acc__Specification2_spec__2_#t~ret34#1; 62#L675true assume !(0 != __utac_acc__Specification2_spec__2_~tmp~4#1);~methAndRunningLastTime~0 := 0; 83#L675-1true assume { :end_inline___utac_acc__Specification2_spec__2 } true; 24#L791true assume { :end_inline_timeShift } true; 116#L708-2true [2021-12-15 17:18:20,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:18:20,588 INFO L85 PathProgramCache]: Analyzing trace with hash 87859946, now seen corresponding path program 1 times [2021-12-15 17:18:20,595 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:18:20,596 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [402628078] [2021-12-15 17:18:20,597 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:18:20,598 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:18:20,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:18:20,732 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:18:20,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:18:20,795 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:18:20,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:18:20,798 INFO L85 PathProgramCache]: Analyzing trace with hash 1535340682, now seen corresponding path program 1 times [2021-12-15 17:18:20,798 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:18:20,799 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1887224001] [2021-12-15 17:18:20,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:18:20,799 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:18:20,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:18:20,816 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:18:20,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:18:20,826 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:18:20,834 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:18:20,834 INFO L85 PathProgramCache]: Analyzing trace with hash 1373053299, now seen corresponding path program 1 times [2021-12-15 17:18:20,835 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:18:20,835 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1380908663] [2021-12-15 17:18:20,835 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:18:20,836 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:18:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:18:20,989 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-12-15 17:18:20,989 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:18:20,990 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1380908663] [2021-12-15 17:18:20,990 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1380908663] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:18:20,991 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:18:20,991 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:18:20,991 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3944701] [2021-12-15 17:18:20,992 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:18:21,155 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:834) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:18:21,159 INFO L158 Benchmark]: Toolchain (without parser) took 2333.35ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 62.5MB in the beginning and 93.2MB in the end (delta: -30.7MB). Peak memory consumption was 31.3MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,159 INFO L158 Benchmark]: CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory was 51.7MB in the beginning and 51.6MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:18:21,160 INFO L158 Benchmark]: CACSL2BoogieTranslator took 698.68ms. Allocated memory is still 94.4MB. Free memory was 62.3MB in the beginning and 60.9MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,160 INFO L158 Benchmark]: Boogie Procedure Inliner took 129.70ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,161 INFO L158 Benchmark]: Boogie Preprocessor took 116.97ms. Allocated memory is still 94.4MB. Free memory was 57.9MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,162 INFO L158 Benchmark]: RCFGBuilder took 657.60ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 55.7MB in the beginning and 90.7MB in the end (delta: -34.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,162 INFO L158 Benchmark]: BuchiAutomizer took 725.24ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 93.2MB in the end (delta: -3.1MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. [2021-12-15 17:18:21,165 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26ms. Allocated memory is still 94.4MB. Free memory was 51.7MB in the beginning and 51.6MB in the end (delta: 43.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 698.68ms. Allocated memory is still 94.4MB. Free memory was 62.3MB in the beginning and 60.9MB in the end (delta: 1.4MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 129.70ms. Allocated memory is still 94.4MB. Free memory was 60.9MB in the beginning and 57.9MB in the end (delta: 3.0MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 116.97ms. Allocated memory is still 94.4MB. Free memory was 57.9MB in the beginning and 55.7MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 657.60ms. Allocated memory was 94.4MB in the beginning and 121.6MB in the end (delta: 27.3MB). Free memory was 55.7MB in the beginning and 90.7MB in the end (delta: -34.9MB). Peak memory consumption was 18.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 725.24ms. Allocated memory is still 121.6MB. Free memory was 90.1MB in the beginning and 93.2MB in the end (delta: -3.1MB). Peak memory consumption was 30.7MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: - ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer: UnsupportedOperationException: Set is immutable: de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) RESULT: Ultimate could not prove your program: Toolchain returned no result. [2021-12-15 17:18:21,229 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 Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable