./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/minepump_spec4_product53.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_spec4_product53.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 e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:19:12,489 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:19:12,491 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:19:12,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:19:12,534 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:19:12,535 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:19:12,536 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:19:12,537 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:19:12,538 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:19:12,539 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:19:12,540 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:19:12,540 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:19:12,541 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:19:12,541 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:19:12,542 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:19:12,543 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:19:12,544 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:19:12,545 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:19:12,546 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:19:12,547 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:19:12,548 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:19:12,552 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:19:12,552 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:19:12,553 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:19:12,555 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:19:12,562 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:19:12,562 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:19:12,563 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:19:12,563 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:19:12,564 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:19:12,564 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:19:12,565 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:19:12,565 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:19:12,566 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:19:12,566 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:19:12,567 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:19:12,567 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:19:12,567 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:19:12,568 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:19:12,568 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:19:12,571 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:19:12,572 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:19:12,590 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:19:12,594 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:19:12,595 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:19:12,595 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:19:12,596 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:19:12,597 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:19:12,597 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:19:12,597 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:19:12,597 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:19:12,597 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:19:12,598 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:19:12,598 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:19:12,598 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:19:12,598 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:19:12,598 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:19:12,599 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:19:12,600 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:19:12,600 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:19:12,601 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:19:12,601 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:19:12,601 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:19:12,601 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:19:12,602 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:19:12,602 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> e91d5c860cfea17112af53939b2fffb1e4c536355098377ab18c754994d1bc2b [2021-12-15 17:19:12,830 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:19:12,845 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:19:12,847 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:19:12,848 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:19:12,848 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:19:12,849 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-12-15 17:19:12,888 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5905615/d3d1c08c3f5544bfaaeb1a368347aa8e/FLAG52059f7b7 [2021-12-15 17:19:13,247 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:19:13,248 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/minepump_spec4_product53.cil.c [2021-12-15 17:19:13,255 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5905615/d3d1c08c3f5544bfaaeb1a368347aa8e/FLAG52059f7b7 [2021-12-15 17:19:13,625 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ae5905615/d3d1c08c3f5544bfaaeb1a368347aa8e [2021-12-15 17:19:13,627 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:19:13,628 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:19:13,635 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:19:13,635 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:19:13,637 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:19:13,638 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:13,640 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1fb86c47 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13, skipping insertion in model container [2021-12-15 17:19:13,640 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:13,644 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:19:13,679 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:19:13,891 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_spec4_product53.cil.c[15987,16000] [2021-12-15 17:19:13,924 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:19:13,933 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:19:13,975 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_spec4_product53.cil.c[15987,16000] [2021-12-15 17:19:13,980 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:19:13,992 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:19:13,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13 WrapperNode [2021-12-15 17:19:13,993 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:19:13,994 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:19:13,994 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:19:13,994 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:19:13,999 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,015 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,058 INFO L137 Inliner]: procedures = 56, calls = 158, calls flagged for inlining = 55, calls inlined = 137, statements flattened = 1001 [2021-12-15 17:19:14,061 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:19:14,062 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:19:14,062 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:19:14,062 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:19:14,069 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,069 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,087 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,088 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,096 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,113 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,124 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,127 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:19:14,129 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:19:14,130 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:19:14,130 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:19:14,131 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (1/1) ... [2021-12-15 17:19:14,135 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:19:14,144 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:19:14,193 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 17:19:14,214 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 17:19:14,221 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:19:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:19:14,222 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:19:14,222 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:19:14,287 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:19:14,288 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:19:14,736 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:19:14,742 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:19:14,743 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 17:19:14,744 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:19:14 BoogieIcfgContainer [2021-12-15 17:19:14,744 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:19:14,745 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:19:14,745 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:19:14,748 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:19:14,748 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:19:14,748 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:19:13" (1/3) ... [2021-12-15 17:19:14,749 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c94961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:19:14, skipping insertion in model container [2021-12-15 17:19:14,749 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:19:14,749 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:19:13" (2/3) ... [2021-12-15 17:19:14,750 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@25c94961 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:19:14, skipping insertion in model container [2021-12-15 17:19:14,750 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:19:14,750 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:19:14" (3/3) ... [2021-12-15 17:19:14,751 INFO L388 chiAutomizerObserver]: Analyzing ICFG minepump_spec4_product53.cil.c [2021-12-15 17:19:14,792 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:19:14,792 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:19:14,792 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:19:14,793 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:19:14,793 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:19:14,793 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:19:14,793 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:19:14,793 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:19:14,820 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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 17:19:14,857 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-12-15 17:19:14,860 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:19:14,860 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:19:14,865 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:19:14,865 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 17:19:14,865 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:19:14,866 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 270 states, 269 states have (on average 1.3717472118959109) internal successors, (369), 269 states have internal predecessors, (369), 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 17:19:14,876 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 176 [2021-12-15 17:19:14,876 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:19:14,876 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:19:14,878 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:19:14,878 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 17:19:14,882 INFO L791 eck$LassoCheckResult]: Stem: 255#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(30, 4);call #Ultimate.allocInit(9, 5);call #Ultimate.allocInit(21, 6);call #Ultimate.allocInit(30, 7);call #Ultimate.allocInit(9, 8);call #Ultimate.allocInit(21, 9);call #Ultimate.allocInit(30, 10);call #Ultimate.allocInit(9, 11);call #Ultimate.allocInit(25, 12);call #Ultimate.allocInit(30, 13);call #Ultimate.allocInit(9, 14);call #Ultimate.allocInit(25, 15);call #Ultimate.allocInit(13, 16);call #Ultimate.allocInit(3, 17);call write~init~int(79, 17, 0, 1);call write~init~int(110, 17, 1, 1);call write~init~int(0, 17, 2, 1);call #Ultimate.allocInit(4, 18);call write~init~int(79, 18, 0, 1);call write~init~int(102, 18, 1, 1);call write~init~int(102, 18, 2, 1);call write~init~int(0, 18, 3, 1);call #Ultimate.allocInit(7, 19);call write~init~int(44, 19, 0, 1);call write~init~int(80, 19, 1, 1);call write~init~int(117, 19, 2, 1);call write~init~int(109, 19, 3, 1);call write~init~int(112, 19, 4, 1);call write~init~int(58, 19, 5, 1);call write~init~int(0, 19, 6, 1);call #Ultimate.allocInit(3, 20);call write~init~int(79, 20, 0, 1);call write~init~int(110, 20, 1, 1);call write~init~int(0, 20, 2, 1);call #Ultimate.allocInit(4, 21);call write~init~int(79, 21, 0, 1);call write~init~int(102, 21, 1, 1);call write~init~int(102, 21, 2, 1);call write~init~int(0, 21, 3, 1);call #Ultimate.allocInit(3, 22);call write~init~int(41, 22, 0, 1);call write~init~int(32, 22, 1, 1);call write~init~int(0, 22, 2, 1);call #Ultimate.allocInit(2, 23);call write~init~int(10, 23, 0, 1);call write~init~int(0, 23, 1, 1);call #Ultimate.allocInit(13, 24);call #Ultimate.allocInit(7, 25);call write~init~int(44, 25, 0, 1);call write~init~int(77, 25, 1, 1);call write~init~int(101, 25, 2, 1);call write~init~int(116, 25, 3, 1);call write~init~int(104, 25, 4, 1);call write~init~int(58, 25, 5, 1);call write~init~int(0, 25, 6, 1);call #Ultimate.allocInit(5, 26);call write~init~int(67, 26, 0, 1);call write~init~int(82, 26, 1, 1);call write~init~int(73, 26, 2, 1);call write~init~int(84, 26, 3, 1);call write~init~int(0, 26, 4, 1);call #Ultimate.allocInit(3, 27);call write~init~int(79, 27, 0, 1);call write~init~int(75, 27, 1, 1);call write~init~int(0, 27, 2, 1);call #Ultimate.allocInit(2, 28);call write~init~int(41, 28, 0, 1);call write~init~int(0, 28, 1, 1);~head~0.base, ~head~0.offset := 0, 0;~pumpRunning~0 := 0;~systemActive~0 := 1;~waterLevel~0 := 1;~methaneLevelCritical~0 := 0;~cleanupTimeShifts~0 := 4; 172#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~ret53#1, main_~retValue_acc~13#1, main_~tmp~10#1;havoc main_~retValue_acc~13#1;havoc main_~tmp~10#1;assume { :begin_inline_select_helpers } true; 191#L743true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 168#L736true 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; 27#L751true main_#t~ret53#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~10#1 := main_#t~ret53#1;havoc main_#t~ret53#1; 237#L977true assume 0 != main_~tmp~10#1;assume { :begin_inline_setup } true; 268#L954true assume { :end_inline_setup } true;assume { :begin_inline_runTest } true;assume { :begin_inline_test } true;havoc test_#t~nondet27#1, test_#t~nondet28#1, test_#t~nondet29#1, test_#t~nondet30#1, test_~splverifierCounter~0#1, test_~tmp~3#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~3#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;test_~splverifierCounter~0#1 := 0; 182#L430-2true [2021-12-15 17:19:14,883 INFO L793 eck$LassoCheckResult]: Loop: 182#L430-2true assume !false; 267#L431true assume test_~splverifierCounter~0#1 < 4; 222#L432true test_~tmp~3#1 := test_#t~nondet27#1;havoc test_#t~nondet27#1; 233#L440true assume !(0 != test_~tmp~3#1); 232#L440-2true test_~tmp___0~0#1 := test_#t~nondet28#1;havoc test_#t~nondet28#1; 86#L450true assume !(0 != test_~tmp___0~0#1); 23#L450-2true test_~tmp___2~0#1 := test_#t~nondet29#1;havoc test_#t~nondet29#1; 53#L460true assume 0 != test_~tmp___2~0#1; 76#L466-2true assume { :begin_inline_timeShift } true; 36#L502true assume !(0 != ~pumpRunning~0); 126#L502-2true assume !(0 != ~systemActive~0); 216#L509-1true assume { :begin_inline___utac_acc__Specification4_spec__1 } true;havoc __utac_acc__Specification4_spec__1_#t~ret51#1, __utac_acc__Specification4_spec__1_#t~ret52#1, __utac_acc__Specification4_spec__1_~tmp~9#1, __utac_acc__Specification4_spec__1_~tmp___0~3#1;havoc __utac_acc__Specification4_spec__1_~tmp~9#1;havoc __utac_acc__Specification4_spec__1_~tmp___0~3#1;assume { :begin_inline_getWaterLevel } true;havoc getWaterLevel_#res#1;havoc getWaterLevel_~retValue_acc~10#1;havoc getWaterLevel_~retValue_acc~10#1;getWaterLevel_~retValue_acc~10#1 := ~waterLevel~0;getWaterLevel_#res#1 := getWaterLevel_~retValue_acc~10#1; 211#L841true __utac_acc__Specification4_spec__1_#t~ret51#1 := getWaterLevel_#res#1;assume { :end_inline_getWaterLevel } true;__utac_acc__Specification4_spec__1_~tmp~9#1 := __utac_acc__Specification4_spec__1_#t~ret51#1;havoc __utac_acc__Specification4_spec__1_#t~ret51#1; 22#L877true assume !(0 == __utac_acc__Specification4_spec__1_~tmp~9#1); 271#L877-1true assume { :end_inline___utac_acc__Specification4_spec__1 } true; 220#L519true assume { :end_inline_timeShift } true; 182#L430-2true [2021-12-15 17:19:14,886 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:19:14,886 INFO L85 PathProgramCache]: Analyzing trace with hash 1803949509, now seen corresponding path program 1 times [2021-12-15 17:19:14,892 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:19:14,892 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1778408755] [2021-12-15 17:19:14,893 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:19:14,893 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:19:15,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:19:15,002 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:19:15,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:19:15,030 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:19:15,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:19:15,031 INFO L85 PathProgramCache]: Analyzing trace with hash 408252804, now seen corresponding path program 1 times [2021-12-15 17:19:15,032 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:19:15,032 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [713004867] [2021-12-15 17:19:15,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:19:15,032 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:19:15,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:19:15,036 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:19:15,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:19:15,041 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:19:15,042 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:19:15,042 INFO L85 PathProgramCache]: Analyzing trace with hash 1763671880, now seen corresponding path program 1 times [2021-12-15 17:19:15,042 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:19:15,042 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1190338625] [2021-12-15 17:19:15,043 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:19:15,043 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:19:15,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:19:15,161 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 17:19:15,162 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:19:15,163 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1190338625] [2021-12-15 17:19:15,163 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1190338625] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:19:15,164 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:19:15,164 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-12-15 17:19:15,164 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2081117922] [2021-12-15 17:19:15,165 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:19:15,251 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 17:19:15,258 INFO L158 Benchmark]: Toolchain (without parser) took 1628.68ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 80.1MB in the beginning and 99.0MB in the end (delta: -18.9MB). Peak memory consumption was 39.5MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,259 INFO L158 Benchmark]: CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:19:15,259 INFO L158 Benchmark]: CACSL2BoogieTranslator took 358.15ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 75.7MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,260 INFO L158 Benchmark]: Boogie Procedure Inliner took 67.53ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 71.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,261 INFO L158 Benchmark]: Boogie Preprocessor took 66.72ms. Allocated memory is still 109.1MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,262 INFO L158 Benchmark]: RCFGBuilder took 615.14ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 68.2MB in the beginning and 92.6MB in the end (delta: -24.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,263 INFO L158 Benchmark]: BuchiAutomizer took 511.08ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 99.0MB in the end (delta: -6.4MB). Peak memory consumption was 29.4MB. Max. memory is 16.1GB. [2021-12-15 17:19:15,269 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.16ms. Allocated memory is still 109.1MB. Free memory was 66.6MB in the beginning and 66.5MB in the end (delta: 84.0kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 358.15ms. Allocated memory is still 109.1MB. Free memory was 79.8MB in the beginning and 75.7MB in the end (delta: 4.1MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 67.53ms. Allocated memory is still 109.1MB. Free memory was 75.7MB in the beginning and 71.3MB in the end (delta: 4.4MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 66.72ms. Allocated memory is still 109.1MB. Free memory was 71.3MB in the beginning and 68.2MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 615.14ms. Allocated memory was 109.1MB in the beginning and 132.1MB in the end (delta: 23.1MB). Free memory was 68.2MB in the beginning and 92.6MB in the end (delta: -24.3MB). Peak memory consumption was 21.9MB. Max. memory is 16.1GB. * BuchiAutomizer took 511.08ms. Allocated memory is still 132.1MB. Free memory was 92.6MB in the beginning and 99.0MB in the end (delta: -6.4MB). Peak memory consumption was 29.4MB. 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 17:19:15,310 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