./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-nla/egcd3-both-nt.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/termination-nla/egcd3-both-nt.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 441ed385de0111f9f6047a22d0563bf22c3f11c2944a4555fcac4ead6b7adc06 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:59:38,843 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:59:38,845 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:59:38,924 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:59:38,927 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:59:38,929 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:59:38,931 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:59:38,936 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:59:38,937 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:59:38,941 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:59:38,942 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:59:38,943 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:59:38,943 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:59:38,945 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:59:38,946 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:59:38,949 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:59:38,951 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:59:38,952 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:59:38,953 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:59:38,957 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:59:38,960 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:59:38,960 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:59:38,962 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:59:38,962 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:59:38,967 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:59:38,970 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:59:38,970 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:59:38,971 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:59:38,972 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:59:38,972 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:59:38,973 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:59:38,973 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:59:38,974 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:59:38,975 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:59:38,976 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:59:38,977 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:59:38,978 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:59:38,978 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:59:38,978 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:59:38,979 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:59:38,979 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:59:38,980 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 16:59:39,002 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:59:39,002 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:59:39,003 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:59:39,003 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:59:39,004 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:59:39,004 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:59:39,004 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:59:39,004 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 16:59:39,005 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 16:59:39,005 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 16:59:39,005 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 16:59:39,005 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 16:59:39,005 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 16:59:39,006 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:59:39,006 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 16:59:39,006 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:59:39,006 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:59:39,006 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 16:59:39,006 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 16:59:39,007 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 16:59:39,008 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:59:39,008 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 16:59:39,008 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:59:39,008 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:59:39,008 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:59:39,008 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:59:39,009 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:59:39,009 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 16:59:39,009 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 441ed385de0111f9f6047a22d0563bf22c3f11c2944a4555fcac4ead6b7adc06 [2021-12-15 16:59:39,204 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:59:39,226 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:59:39,230 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:59:39,232 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:59:39,232 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:59:39,234 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-nla/egcd3-both-nt.c [2021-12-15 16:59:39,300 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d6480ba/611b49872c4c41ad868b14e643592824/FLAGe51120116 [2021-12-15 16:59:39,641 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:59:39,641 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-nla/egcd3-both-nt.c [2021-12-15 16:59:39,646 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d6480ba/611b49872c4c41ad868b14e643592824/FLAGe51120116 [2021-12-15 16:59:40,077 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d1d6480ba/611b49872c4c41ad868b14e643592824 [2021-12-15 16:59:40,079 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:59:40,080 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:59:40,084 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:59:40,084 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:59:40,087 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:59:40,088 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,088 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@10cf2b91 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40, skipping insertion in model container [2021-12-15 16:59:40,089 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,093 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:59:40,108 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:59:40,217 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:59:40,220 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:59:40,233 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:59:40,242 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:59:40,242 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40 WrapperNode [2021-12-15 16:59:40,243 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:59:40,244 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:59:40,244 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:59:40,244 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:59:40,250 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,254 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,268 INFO L137 Inliner]: procedures = 4, calls = 2, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 61 [2021-12-15 16:59:40,268 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:59:40,269 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:59:40,269 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:59:40,269 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:59:40,275 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,275 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,276 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,276 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,278 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,281 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,282 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,283 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:59:40,284 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:59:40,284 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:59:40,284 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:59:40,285 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (1/1) ... [2021-12-15 16:59:40,291 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 16:59:40,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:59:40,320 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 16:59:40,331 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 16:59:40,369 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:59:40,369 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:59:40,415 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:59:40,417 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:59:40,536 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:59:40,547 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:59:40,547 INFO L301 CfgBuilder]: Removed 3 assume(true) statements. [2021-12-15 16:59:40,548 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:59:40 BoogieIcfgContainer [2021-12-15 16:59:40,548 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:59:40,549 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 16:59:40,549 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 16:59:40,553 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 16:59:40,553 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:59:40,553 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 04:59:40" (1/3) ... [2021-12-15 16:59:40,554 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1da11008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:59:40, skipping insertion in model container [2021-12-15 16:59:40,554 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:59:40,554 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:59:40" (2/3) ... [2021-12-15 16:59:40,555 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@1da11008 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:59:40, skipping insertion in model container [2021-12-15 16:59:40,555 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:59:40,555 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:59:40" (3/3) ... [2021-12-15 16:59:40,556 INFO L388 chiAutomizerObserver]: Analyzing ICFG egcd3-both-nt.c [2021-12-15 16:59:40,599 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 16:59:40,600 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 16:59:40,600 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 16:59:40,600 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 16:59:40,600 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 16:59:40,600 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 16:59:40,600 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 16:59:40,600 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 16:59:40,610 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 16:59:40,623 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 16:59:40,624 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:59:40,624 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:59:40,628 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 16:59:40,628 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 16:59:40,628 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 16:59:40,629 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 16:59:40,630 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 16:59:40,630 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:59:40,630 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:59:40,631 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 16:59:40,631 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 16:59:40,636 INFO L791 eck$LassoCheckResult]: Stem: 4#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 6#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~d~0#1, main_~v~0#1, main_~c~0#1, main_~k~0#1, main_~temp~0#1, main_~x~0#1, main_~y~0#1, main_~a~0#1, main_~b~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~s~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~s~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_~x~0#1;main_~b~0#1 := main_~y~0#1;main_~p~0#1 := 1;main_~q~0#1 := 0;main_~r~0#1 := 0;main_~s~0#1 := 1; 5#L33-2true [2021-12-15 16:59:40,636 INFO L793 eck$LassoCheckResult]: Loop: 5#L33-2true assume !false; 9#L34true assume !!(0 != main_~b~0#1);havoc main_~c~0#1;havoc main_~k~0#1;main_~c~0#1 := main_~a~0#1;main_~k~0#1 := 0; 10#L40-2true assume !true; 7#L40-3true main_~a~0#1 := main_~b~0#1;main_~b~0#1 := main_~c~0#1;havoc main_~temp~0#1;main_~temp~0#1 := main_~p~0#1;main_~p~0#1 := main_~q~0#1;main_~q~0#1 := main_~temp~0#1 - main_~q~0#1 * main_~k~0#1;main_~temp~0#1 := main_~r~0#1;main_~r~0#1 := main_~s~0#1;main_~s~0#1 := main_~temp~0#1 - main_~s~0#1 * main_~k~0#1; 5#L33-2true [2021-12-15 16:59:40,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:59:40,640 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 16:59:40,647 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:59:40,647 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [869274482] [2021-12-15 16:59:40,647 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:40,648 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:59:40,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:40,712 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:59:40,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:40,744 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:59:40,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:59:40,767 INFO L85 PathProgramCache]: Analyzing trace with hash 1268200, now seen corresponding path program 1 times [2021-12-15 16:59:40,767 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:59:40,768 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [788284888] [2021-12-15 16:59:40,768 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:40,768 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:59:40,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:59:40,824 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 16:59:40,824 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:59:40,825 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [788284888] [2021-12-15 16:59:40,825 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [788284888] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:59:40,825 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:59:40,826 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:59:40,826 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414071503] [2021-12-15 16:59:40,827 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:59:40,830 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 16:59:40,830 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:59:40,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 16:59:40,866 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 16:59:40,867 INFO L87 Difference]: Start difference. First operand has 14 states, 13 states have (on average 1.6923076923076923) internal successors, (22), 13 states have internal predecessors, (22), 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 2 states, 2 states have (on average 2.0) internal successors, (4), 2 states have internal predecessors, (4), 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 16:59:40,873 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:59:40,873 INFO L93 Difference]: Finished difference Result 14 states and 16 transitions. [2021-12-15 16:59:40,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 16:59:40,878 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 14 states and 16 transitions. [2021-12-15 16:59:40,881 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 16:59:40,884 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 14 states to 10 states and 12 transitions. [2021-12-15 16:59:40,885 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 10 [2021-12-15 16:59:40,885 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 10 [2021-12-15 16:59:40,886 INFO L73 IsDeterministic]: Start isDeterministic. Operand 10 states and 12 transitions. [2021-12-15 16:59:40,886 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 16:59:40,886 INFO L681 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-15 16:59:40,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10 states and 12 transitions. [2021-12-15 16:59:40,905 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10 to 10. [2021-12-15 16:59:40,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10 states, 10 states have (on average 1.2) internal successors, (12), 9 states have internal predecessors, (12), 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 16:59:40,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10 states to 10 states and 12 transitions. [2021-12-15 16:59:40,908 INFO L704 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-15 16:59:40,908 INFO L587 BuchiCegarLoop]: Abstraction has 10 states and 12 transitions. [2021-12-15 16:59:40,909 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 16:59:40,909 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 10 states and 12 transitions. [2021-12-15 16:59:40,910 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 8 [2021-12-15 16:59:40,910 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:59:40,910 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:59:40,911 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 16:59:40,911 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-15 16:59:40,911 INFO L791 eck$LassoCheckResult]: Stem: 40#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 41#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet0#1, main_#t~nondet1#1, main_~d~0#1, main_~v~0#1, main_~c~0#1, main_~k~0#1, main_~temp~0#1, main_~x~0#1, main_~y~0#1, main_~a~0#1, main_~b~0#1, main_~p~0#1, main_~q~0#1, main_~r~0#1, main_~s~0#1;havoc main_~x~0#1;havoc main_~y~0#1;havoc main_~a~0#1;havoc main_~b~0#1;havoc main_~p~0#1;havoc main_~q~0#1;havoc main_~r~0#1;havoc main_~s~0#1;main_~x~0#1 := main_#t~nondet0#1;havoc main_#t~nondet0#1;main_~y~0#1 := main_#t~nondet1#1;havoc main_#t~nondet1#1;main_~a~0#1 := main_~x~0#1;main_~b~0#1 := main_~y~0#1;main_~p~0#1 := 1;main_~q~0#1 := 0;main_~r~0#1 := 0;main_~s~0#1 := 1; 39#L33-2 [2021-12-15 16:59:40,911 INFO L793 eck$LassoCheckResult]: Loop: 39#L33-2 assume !false; 42#L34 assume !!(0 != main_~b~0#1);havoc main_~c~0#1;havoc main_~k~0#1;main_~c~0#1 := main_~a~0#1;main_~k~0#1 := 0; 43#L40-2 assume !false; 36#L41 assume !(main_~c~0#1 >= main_~b~0#1); 37#L40-3 main_~a~0#1 := main_~b~0#1;main_~b~0#1 := main_~c~0#1;havoc main_~temp~0#1;main_~temp~0#1 := main_~p~0#1;main_~p~0#1 := main_~q~0#1;main_~q~0#1 := main_~temp~0#1 - main_~q~0#1 * main_~k~0#1;main_~temp~0#1 := main_~r~0#1;main_~r~0#1 := main_~s~0#1;main_~s~0#1 := main_~temp~0#1 - main_~s~0#1 * main_~k~0#1; 39#L33-2 [2021-12-15 16:59:40,915 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:59:40,915 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 2 times [2021-12-15 16:59:40,916 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:59:40,916 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976524329] [2021-12-15 16:59:40,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:40,917 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:59:40,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:40,931 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:59:40,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:40,935 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:59:40,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:59:40,936 INFO L85 PathProgramCache]: Analyzing trace with hash 39289483, now seen corresponding path program 1 times [2021-12-15 16:59:40,936 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:59:40,936 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1043771953] [2021-12-15 16:59:40,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:40,937 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:59:40,949 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 16:59:40,950 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1839342285] [2021-12-15 16:59:40,950 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:40,953 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:59:40,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:59:40,959 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:59:40,979 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2021-12-15 16:59:41,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:41,005 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:59:41,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:41,021 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:59:41,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:59:41,024 INFO L85 PathProgramCache]: Analyzing trace with hash 1810728969, now seen corresponding path program 1 times [2021-12-15 16:59:41,024 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:59:41,024 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1002681597] [2021-12-15 16:59:41,024 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:41,025 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:59:41,030 ERROR L247 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2021-12-15 16:59:41,034 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [2116039277] [2021-12-15 16:59:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:59:41,034 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-12-15 16:59:41,035 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:59:41,039 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-12-15 16:59:41,052 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-12-15 16:59:41,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:41,081 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:59:41,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:59:41,101 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:59:41,192 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:855) 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 16:59:41,196 INFO L158 Benchmark]: Toolchain (without parser) took 1115.32ms. Allocated memory is still 109.1MB. Free memory was 78.1MB in the beginning and 43.3MB in the end (delta: 34.8MB). Peak memory consumption was 30.9MB. Max. memory is 16.1GB. [2021-12-15 16:59:41,196 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:59:41,197 INFO L158 Benchmark]: CACSL2BoogieTranslator took 158.92ms. Allocated memory is still 109.1MB. Free memory was 77.9MB in the beginning and 86.8MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:59:41,197 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.60ms. Allocated memory is still 109.1MB. Free memory was 86.2MB in the beginning and 85.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:59:41,198 INFO L158 Benchmark]: Boogie Preprocessor took 14.21ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:59:41,198 INFO L158 Benchmark]: RCFGBuilder took 264.92ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 74.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:59:41,199 INFO L158 Benchmark]: BuchiAutomizer took 645.55ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 43.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. Max. memory is 16.1GB. [2021-12-15 16:59:41,201 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory was 42.8MB in the beginning and 42.8MB in the end (delta: 39.4kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 158.92ms. Allocated memory is still 109.1MB. Free memory was 77.9MB in the beginning and 86.8MB in the end (delta: -8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 24.60ms. Allocated memory is still 109.1MB. Free memory was 86.2MB in the beginning and 85.2MB in the end (delta: 1.0MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 14.21ms. Allocated memory is still 109.1MB. Free memory was 85.2MB in the beginning and 84.1MB in the end (delta: 1.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 264.92ms. Allocated memory is still 109.1MB. Free memory was 84.1MB in the beginning and 74.7MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 645.55ms. Allocated memory is still 109.1MB. Free memory was 74.7MB in the beginning and 43.3MB in the end (delta: 31.5MB). Peak memory consumption was 31.5MB. 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 16:59:41,235 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-12-15 16:59:41,448 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2021-12-15 16:59:41,648 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with 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