./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/termination-numeric/Parts.c --full-output --architecture 64bit -------------------------------------------------------------------------------- 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-numeric/Parts.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-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 64bit --witnessprinter.graph.data.programhash 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 16:58:39,900 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 16:58:39,902 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 16:58:39,956 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 16:58:39,957 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 16:58:39,960 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 16:58:39,961 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 16:58:39,964 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 16:58:39,965 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 16:58:39,969 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 16:58:39,970 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 16:58:39,972 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 16:58:39,972 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 16:58:39,974 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 16:58:39,975 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 16:58:39,983 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 16:58:39,984 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 16:58:39,985 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 16:58:39,986 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 16:58:39,987 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 16:58:39,987 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 16:58:39,989 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 16:58:39,990 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 16:58:39,991 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 16:58:39,998 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 16:58:39,998 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 16:58:39,999 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 16:58:40,000 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 16:58:40,001 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 16:58:40,002 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 16:58:40,002 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 16:58:40,004 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 16:58:40,005 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 16:58:40,006 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 16:58:40,008 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 16:58:40,009 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 16:58:40,009 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 16:58:40,010 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 16:58:40,010 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 16:58:40,011 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 16:58:40,011 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 16:58:40,012 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-64bit-Automizer_Default.epf [2021-12-15 16:58:40,042 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 16:58:40,042 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 16:58:40,042 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 16:58:40,043 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 16:58:40,044 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 16:58:40,044 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 16:58:40,044 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 16:58:40,045 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 16:58:40,045 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 16:58:40,045 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 16:58:40,046 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 16:58:40,046 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 16:58:40,046 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 16:58:40,047 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 16:58:40,047 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 16:58:40,047 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 16:58:40,047 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 16:58:40,048 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 16:58:40,048 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 16:58:40,048 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 16:58:40,048 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 16:58:40,049 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 16:58:40,049 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 16:58:40,049 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 16:58:40,049 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 16:58:40,049 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 16:58:40,050 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 16:58:40,050 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 16:58:40,050 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 16:58:40,052 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 16:58:40,052 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 64bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 663a2474dc11f7b5d0aa9a3ae9bbf5de1ab8d2ea5a060185a0446a8356edf6f1 [2021-12-15 16:58:40,298 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 16:58:40,330 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 16:58:40,333 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 16:58:40,334 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 16:58:40,334 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 16:58:40,336 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/termination-numeric/Parts.c [2021-12-15 16:58:40,397 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc634a2/779c5d47f59b4514b4eb4fd9846f58e0/FLAG1ec5dc483 [2021-12-15 16:58:40,793 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 16:58:40,794 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/termination-numeric/Parts.c [2021-12-15 16:58:40,803 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc634a2/779c5d47f59b4514b4eb4fd9846f58e0/FLAG1ec5dc483 [2021-12-15 16:58:40,819 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2ebc634a2/779c5d47f59b4514b4eb4fd9846f58e0 [2021-12-15 16:58:40,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 16:58:40,824 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 16:58:40,825 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 16:58:40,826 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 16:58:40,829 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 16:58:40,830 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:58:40" (1/1) ... [2021-12-15 16:58:40,831 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@b36c33d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:40, skipping insertion in model container [2021-12-15 16:58:40,831 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 04:58:40" (1/1) ... [2021-12-15 16:58:40,836 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 16:58:40,847 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 16:58:41,036 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:58:41,039 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 16:58:41,050 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 16:58:41,061 INFO L208 MainTranslator]: Completed translation [2021-12-15 16:58:41,062 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41 WrapperNode [2021-12-15 16:58:41,062 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 16:58:41,064 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 16:58:41,064 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 16:58:41,064 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 16:58:41,072 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,076 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,093 INFO L137 Inliner]: procedures = 5, calls = 6, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 32 [2021-12-15 16:58:41,093 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 16:58:41,094 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 16:58:41,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 16:58:41,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 16:58:41,100 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,101 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,102 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,102 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,104 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,109 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,116 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,118 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 16:58:41,119 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 16:58:41,120 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 16:58:41,120 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 16:58:41,121 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (1/1) ... [2021-12-15 16:58:41,127 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 16:58:41,136 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 16:58:41,177 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 16:58:41,186 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 16:58:41,216 INFO L130 BoogieDeclarations]: Found specification of procedure parts [2021-12-15 16:58:41,216 INFO L138 BoogieDeclarations]: Found implementation of procedure parts [2021-12-15 16:58:41,216 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 16:58:41,217 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 16:58:41,262 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 16:58:41,263 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 16:58:41,401 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 16:58:41,406 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 16:58:41,406 INFO L301 CfgBuilder]: Removed 2 assume(true) statements. [2021-12-15 16:58:41,420 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:58:41 BoogieIcfgContainer [2021-12-15 16:58:41,420 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 16:58:41,421 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 16:58:41,421 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 16:58:41,436 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 16:58:41,436 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:41,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 04:58:40" (1/3) ... [2021-12-15 16:58:41,437 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a95c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:58:41, skipping insertion in model container [2021-12-15 16:58:41,437 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:41,437 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 04:58:41" (2/3) ... [2021-12-15 16:58:41,438 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@5a95c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 04:58:41, skipping insertion in model container [2021-12-15 16:58:41,438 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 16:58:41,438 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 04:58:41" (3/3) ... [2021-12-15 16:58:41,439 INFO L388 chiAutomizerObserver]: Analyzing ICFG Parts.c [2021-12-15 16:58:41,475 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 16:58:41,475 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 16:58:41,475 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 16:58:41,475 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 16:58:41,475 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 16:58:41,475 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 16:58:41,475 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 16:58:41,475 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 16:58:41,487 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 16:58:41,504 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-12-15 16:58:41,504 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:58:41,504 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:58:41,508 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 16:58:41,508 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 16:58:41,508 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 16:58:41,509 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 16:58:41,513 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-12-15 16:58:41,513 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:58:41,514 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:58:41,514 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 16:58:41,514 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 16:58:41,519 INFO L791 eck$LassoCheckResult]: Stem: 6#ULTIMATE.startENTRYtrue assume { :begin_inline_ULTIMATE.init } true; 10#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 19#L28true assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9#L31true assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 26#L34-3true [2021-12-15 16:58:41,519 INFO L793 eck$LassoCheckResult]: Loop: 26#L34-3true assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 14#L35-3true assume !true; 13#L34-2true main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 26#L34-3true [2021-12-15 16:58:41,524 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:41,525 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 1 times [2021-12-15 16:58:41,531 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:41,532 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [630626168] [2021-12-15 16:58:41,532 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:41,534 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:41,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,593 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:58:41,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,615 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:58:41,617 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:41,617 INFO L85 PathProgramCache]: Analyzing trace with hash 68968, now seen corresponding path program 1 times [2021-12-15 16:58:41,618 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:41,618 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1232763411] [2021-12-15 16:58:41,619 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:41,619 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:41,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:58:41,657 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 16:58:41,658 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:58:41,658 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1232763411] [2021-12-15 16:58:41,658 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1232763411] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:58:41,659 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:58:41,659 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 16:58:41,659 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301377689] [2021-12-15 16:58:41,660 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:58:41,662 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 16:58:41,663 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 16:58:41,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2021-12-15 16:58:41,686 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2021-12-15 16:58:41,687 INFO L87 Difference]: Start difference. First operand has 24 states, 18 states have (on average 1.5) internal successors, (27), 18 states have internal predecessors, (27), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 2 states, 2 states have (on average 1.5) internal successors, (3), 2 states have internal predecessors, (3), 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 16:58:41,695 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 16:58:41,695 INFO L93 Difference]: Finished difference Result 24 states and 33 transitions. [2021-12-15 16:58:41,696 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-12-15 16:58:41,699 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 24 states and 33 transitions. [2021-12-15 16:58:41,704 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-12-15 16:58:41,710 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 24 states to 21 states and 28 transitions. [2021-12-15 16:58:41,711 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 21 [2021-12-15 16:58:41,712 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 21 [2021-12-15 16:58:41,712 INFO L73 IsDeterministic]: Start isDeterministic. Operand 21 states and 28 transitions. [2021-12-15 16:58:41,720 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 16:58:41,720 INFO L681 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-12-15 16:58:41,731 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21 states and 28 transitions. [2021-12-15 16:58:41,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21 to 21. [2021-12-15 16:58:41,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21 states, 16 states have (on average 1.25) internal successors, (20), 15 states have internal predecessors, (20), 4 states have call successors, (4), 1 states have call predecessors, (4), 1 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-12-15 16:58:41,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21 states to 21 states and 28 transitions. [2021-12-15 16:58:41,747 INFO L704 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-12-15 16:58:41,748 INFO L587 BuchiCegarLoop]: Abstraction has 21 states and 28 transitions. [2021-12-15 16:58:41,748 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 16:58:41,748 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 21 states and 28 transitions. [2021-12-15 16:58:41,750 INFO L131 ngComponentsAnalysis]: Automaton has 2 accepting balls. 13 [2021-12-15 16:58:41,750 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 16:58:41,750 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 16:58:41,750 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1] [2021-12-15 16:58:41,750 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1] [2021-12-15 16:58:41,751 INFO L791 eck$LassoCheckResult]: Stem: 66#ULTIMATE.startENTRY assume { :begin_inline_ULTIMATE.init } true; 67#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet3#1, main_#t~nondet4#1, main_#t~nondet5#1, main_#t~ret8#1, main_#t~post7#1, main_~q~0#1, main_#t~post6#1, main_~p~0#1, main_~x~0#1, main_~y~0#1, main_~z~0#1;main_~x~0#1 := main_#t~nondet3#1;havoc main_#t~nondet3#1; 70#L28 assume !(main_~x~0#1 < 0);main_~y~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 68#L31 assume !(main_~y~0#1 < 0);main_~z~0#1 := main_#t~nondet5#1;havoc main_#t~nondet5#1;main_~p~0#1 := 0; 69#L34-3 [2021-12-15 16:58:41,751 INFO L793 eck$LassoCheckResult]: Loop: 69#L34-3 assume !!(main_~p~0#1 <= main_~x~0#1);main_~q~0#1 := 0; 72#L35-3 assume !(main_~q~0#1 <= main_~x~0#1); 71#L34-2 main_#t~post6#1 := main_~p~0#1;main_~p~0#1 := 1 + main_#t~post6#1;havoc main_#t~post6#1; 69#L34-3 [2021-12-15 16:58:41,751 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:41,751 INFO L85 PathProgramCache]: Analyzing trace with hash 1510568, now seen corresponding path program 2 times [2021-12-15 16:58:41,752 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:41,752 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1307346783] [2021-12-15 16:58:41,752 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:41,752 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,770 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:58:41,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,773 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:58:41,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:41,773 INFO L85 PathProgramCache]: Analyzing trace with hash 68720, now seen corresponding path program 1 times [2021-12-15 16:58:41,774 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:41,774 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [11321201] [2021-12-15 16:58:41,774 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:41,774 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:41,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,778 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 16:58:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 16:58:41,782 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 16:58:41,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 16:58:41,782 INFO L85 PathProgramCache]: Analyzing trace with hash 2051697257, now seen corresponding path program 1 times [2021-12-15 16:58:41,782 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 16:58:41,783 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2126563341] [2021-12-15 16:58:41,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 16:58:41,783 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 16:58:41,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 16:58:41,817 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 16:58:41,817 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 16:58:41,817 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2126563341] [2021-12-15 16:58:41,818 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2126563341] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 16:58:41,819 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 16:58:41,819 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-12-15 16:58:41,819 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [663743103] [2021-12-15 16:58:41,819 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 16:58:41,864 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 16:58:41,867 INFO L158 Benchmark]: Toolchain (without parser) took 1041.95ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 77.5MB in the beginning and 120.1MB in the end (delta: -42.6MB). Peak memory consumption was 3.1MB. Max. memory is 16.1GB. [2021-12-15 16:58:41,867 INFO L158 Benchmark]: CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:58:41,868 INFO L158 Benchmark]: CACSL2BoogieTranslator took 237.05ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 81.0MB in the end (delta: -3.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. [2021-12-15 16:58:41,868 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.75ms. Allocated memory is still 104.9MB. Free memory was 80.7MB in the beginning and 79.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:58:41,869 INFO L158 Benchmark]: Boogie Preprocessor took 24.29ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.6MB in the end (delta: 903.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 16:58:41,869 INFO L158 Benchmark]: RCFGBuilder took 300.95ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 69.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 16:58:41,870 INFO L158 Benchmark]: BuchiAutomizer took 444.75ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 69.4MB in the beginning and 120.1MB in the end (delta: -50.7MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 16:58:41,873 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22ms. Allocated memory is still 104.9MB. Free memory is still 62.7MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 237.05ms. Allocated memory is still 104.9MB. Free memory was 77.3MB in the beginning and 81.0MB in the end (delta: -3.7MB). Peak memory consumption was 9.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 29.75ms. Allocated memory is still 104.9MB. Free memory was 80.7MB in the beginning and 79.5MB in the end (delta: 1.2MB). There was no memory consumed. Max. memory is 16.1GB. * Boogie Preprocessor took 24.29ms. Allocated memory is still 104.9MB. Free memory was 79.5MB in the beginning and 78.6MB in the end (delta: 903.0kB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 300.95ms. Allocated memory is still 104.9MB. Free memory was 78.4MB in the beginning and 69.4MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 444.75ms. Allocated memory was 104.9MB in the beginning and 151.0MB in the end (delta: 46.1MB). Free memory was 69.4MB in the beginning and 120.1MB in the end (delta: -50.7MB). There was no memory consumed. 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 16:58:41,907 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*64bit*_Bitvector*.epf No suitable settings file found using Termination*64bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable