./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/product-lines/email_spec0_product09.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/email_spec0_product09.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 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:15:29,749 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:15:29,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:15:29,778 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:15:29,778 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:15:29,779 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:15:29,781 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:15:29,782 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:15:29,784 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:15:29,785 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:15:29,786 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:15:29,787 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:15:29,787 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:15:29,788 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:15:29,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:15:29,791 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:15:29,792 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:15:29,793 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:15:29,795 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:15:29,797 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:15:29,798 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:15:29,799 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:15:29,801 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:15:29,801 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:15:29,804 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:15:29,805 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:15:29,805 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:15:29,806 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:15:29,806 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:15:29,807 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:15:29,807 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:15:29,808 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:15:29,809 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:15:29,810 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:15:29,811 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:15:29,811 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:15:29,812 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:15:29,812 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:15:29,812 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:15:29,813 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:15:29,814 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:15:29,816 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:15:29,843 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:15:29,844 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:15:29,845 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:15:29,845 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:15:29,846 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:15:29,846 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:15:29,846 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:15:29,847 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:15:29,847 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:15:29,847 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:15:29,848 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:15:29,848 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:15:29,848 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:15:29,848 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:15:29,849 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:15:29,849 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:15:29,849 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:15:29,849 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:15:29,849 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:15:29,850 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:15:29,851 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:15:29,851 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:15:29,851 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:15:29,851 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:15:29,852 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:15:29,852 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:15:29,852 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:15:29,853 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:15:29,853 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 3b43506942a12950209750f07d771d1d388e9661c8c19f0364d898e10e246352 [2021-12-15 17:15:30,084 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:15:30,112 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:15:30,114 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:15:30,116 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:15:30,116 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:15:30,117 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2021-12-15 17:15:30,179 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca804f57/05afa710cc3045c6b04482c0225f7548/FLAGed64ad1cd [2021-12-15 17:15:30,746 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:15:30,746 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/product-lines/email_spec0_product09.cil.c [2021-12-15 17:15:30,767 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca804f57/05afa710cc3045c6b04482c0225f7548/FLAGed64ad1cd [2021-12-15 17:15:31,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/eca804f57/05afa710cc3045c6b04482c0225f7548 [2021-12-15 17:15:31,158 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:15:31,159 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:15:31,163 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:15:31,163 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:15:31,166 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:15:31,166 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,167 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5ff73ed3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31, skipping insertion in model container [2021-12-15 17:15:31,168 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,173 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:15:31,235 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:15:31,664 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/email_spec0_product09.cil.c[57372,57385] [2021-12-15 17:15:31,670 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:15:31,680 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:15:31,783 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/email_spec0_product09.cil.c[57372,57385] [2021-12-15 17:15:31,784 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:15:31,810 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:15:31,812 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31 WrapperNode [2021-12-15 17:15:31,812 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:15:31,814 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:15:31,814 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:15:31,814 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:15:31,821 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,855 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,966 INFO L137 Inliner]: procedures = 110, calls = 144, calls flagged for inlining = 69, calls inlined = 164, statements flattened = 2274 [2021-12-15 17:15:31,967 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:15:31,968 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:15:31,968 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:15:31,968 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:15:31,975 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,975 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,982 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:31,983 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:32,024 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:32,045 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:32,049 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:32,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:15:32,075 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:15:32,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:15:32,076 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:15:32,086 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (1/1) ... [2021-12-15 17:15:32,103 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:15:32,113 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:15:32,127 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 17:15:32,147 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 17:15:32,164 INFO L130 BoogieDeclarations]: Found specification of procedure puts [2021-12-15 17:15:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:15:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:15:32,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:15:32,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:15:32,374 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:15:32,375 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:15:33,170 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:15:33,180 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:15:33,180 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:15:33,182 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:15:33 BoogieIcfgContainer [2021-12-15 17:15:33,182 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:15:33,183 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:15:33,183 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:15:33,186 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:15:33,187 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:15:33,187 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:15:31" (1/3) ... [2021-12-15 17:15:33,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a495d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:15:33, skipping insertion in model container [2021-12-15 17:15:33,188 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:15:33,188 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:15:31" (2/3) ... [2021-12-15 17:15:33,188 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@71a495d3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:15:33, skipping insertion in model container [2021-12-15 17:15:33,189 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:15:33,189 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:15:33" (3/3) ... [2021-12-15 17:15:33,190 INFO L388 chiAutomizerObserver]: Analyzing ICFG email_spec0_product09.cil.c [2021-12-15 17:15:33,224 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:15:33,225 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:15:33,225 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:15:33,225 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:15:33,225 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:15:33,225 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:15:33,225 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:15:33,226 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:15:33,255 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 445 states, 444 states have (on average 1.6081081081081081) internal successors, (714), 444 states have internal predecessors, (714), 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 17:15:33,340 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2021-12-15 17:15:33,341 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:15:33,341 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:15:33,349 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:15:33,349 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-15 17:15:33,349 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:15:33,350 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 445 states, 444 states have (on average 1.6081081081081081) internal successors, (714), 444 states have internal predecessors, (714), 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 17:15:33,363 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 74 [2021-12-15 17:15:33,363 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:15:33,364 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:15:33,364 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:15:33,365 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1] [2021-12-15 17:15:33,370 INFO L791 eck$LassoCheckResult]: Stem: 423#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(28, 2);call #Ultimate.allocInit(12, 3);call #Ultimate.allocInit(44, 4);call #Ultimate.allocInit(44, 5);call #Ultimate.allocInit(9, 6);call #Ultimate.allocInit(9, 7);call #Ultimate.allocInit(11, 8);call #Ultimate.allocInit(30, 9);call #Ultimate.allocInit(9, 10);call #Ultimate.allocInit(21, 11);call #Ultimate.allocInit(30, 12);call #Ultimate.allocInit(9, 13);call #Ultimate.allocInit(21, 14);call #Ultimate.allocInit(30, 15);call #Ultimate.allocInit(9, 16);call #Ultimate.allocInit(25, 17);call #Ultimate.allocInit(30, 18);call #Ultimate.allocInit(9, 19);call #Ultimate.allocInit(25, 20);call #Ultimate.allocInit(10, 21);call #Ultimate.allocInit(34, 22);call #Ultimate.allocInit(30, 23);call #Ultimate.allocInit(16, 24);call #Ultimate.allocInit(21, 25);call #Ultimate.allocInit(10, 26);call #Ultimate.allocInit(12, 27);call #Ultimate.allocInit(10, 28);call #Ultimate.allocInit(18, 29);call #Ultimate.allocInit(4, 30);call write~init~int(37, 30, 0, 1);call write~init~int(115, 30, 1, 1);call write~init~int(10, 30, 2, 1);call write~init~int(0, 30, 3, 1);call #Ultimate.allocInit(16, 31);~__SELECTED_FEATURE_Base~0 := 0;~__SELECTED_FEATURE_Keys~0 := 0;~__SELECTED_FEATURE_Encrypt~0 := 0;~__SELECTED_FEATURE_AutoResponder~0 := 0;~__SELECTED_FEATURE_AddressBook~0 := 0;~__SELECTED_FEATURE_Sign~0 := 0;~__SELECTED_FEATURE_Forward~0 := 0;~__SELECTED_FEATURE_Verify~0 := 0;~__SELECTED_FEATURE_Decrypt~0 := 0;~__GUIDSL_ROOT_PRODUCTION~0 := 0;~__GUIDSL_NON_TERMINAL_main~0 := 0;~bob~0 := 0;~rjh~0 := 0;~chuck~0 := 0;~__ste_Email_counter~0 := 0;~__ste_email_id0~0 := 0;~__ste_email_id1~0 := 0;~__ste_email_from0~0 := 0;~__ste_email_from1~0 := 0;~__ste_email_to0~0 := 0;~__ste_email_to1~0 := 0;~__ste_email_subject0~0.base, ~__ste_email_subject0~0.offset := 0, 0;~__ste_email_subject1~0.base, ~__ste_email_subject1~0.offset := 0, 0;~__ste_email_body0~0.base, ~__ste_email_body0~0.offset := 0, 0;~__ste_email_body1~0.base, ~__ste_email_body1~0.offset := 0, 0;~__ste_email_isEncrypted0~0 := 0;~__ste_email_isEncrypted1~0 := 0;~__ste_email_encryptionKey0~0 := 0;~__ste_email_encryptionKey1~0 := 0;~__ste_email_isSigned0~0 := 0;~__ste_email_isSigned1~0 := 0;~__ste_email_signKey0~0 := 0;~__ste_email_signKey1~0 := 0;~__ste_email_isSignatureVerified0~0 := 0;~__ste_email_isSignatureVerified1~0 := 0;~head~0.base, ~head~0.offset := 0, 0;~__ste_Client_counter~0 := 0;~__ste_client_name0~0.base, ~__ste_client_name0~0.offset := 0, 0;~__ste_client_name1~0.base, ~__ste_client_name1~0.offset := 0, 0;~__ste_client_name2~0.base, ~__ste_client_name2~0.offset := 0, 0;~__ste_client_outbuffer0~0 := 0;~__ste_client_outbuffer1~0 := 0;~__ste_client_outbuffer2~0 := 0;~__ste_client_outbuffer3~0 := 0;~__ste_ClientAddressBook_size0~0 := 0;~__ste_ClientAddressBook_size1~0 := 0;~__ste_ClientAddressBook_size2~0 := 0;~__ste_Client_AddressBook0_Alias0~0 := 0;~__ste_Client_AddressBook0_Alias1~0 := 0;~__ste_Client_AddressBook0_Alias2~0 := 0;~__ste_Client_AddressBook1_Alias0~0 := 0;~__ste_Client_AddressBook1_Alias1~0 := 0;~__ste_Client_AddressBook1_Alias2~0 := 0;~__ste_Client_AddressBook2_Alias0~0 := 0;~__ste_Client_AddressBook2_Alias1~0 := 0;~__ste_Client_AddressBook2_Alias2~0 := 0;~__ste_Client_AddressBook0_Address0~0 := 0;~__ste_Client_AddressBook0_Address1~0 := 0;~__ste_Client_AddressBook0_Address2~0 := 0;~__ste_Client_AddressBook1_Address0~0 := 0;~__ste_Client_AddressBook1_Address1~0 := 0;~__ste_Client_AddressBook1_Address2~0 := 0;~__ste_Client_AddressBook2_Address0~0 := 0;~__ste_Client_AddressBook2_Address1~0 := 0;~__ste_Client_AddressBook2_Address2~0 := 0;~__ste_client_autoResponse0~0 := 0;~__ste_client_autoResponse1~0 := 0;~__ste_client_autoResponse2~0 := 0;~__ste_client_privateKey0~0 := 0;~__ste_client_privateKey1~0 := 0;~__ste_client_privateKey2~0 := 0;~__ste_ClientKeyring_size0~0 := 0;~__ste_ClientKeyring_size1~0 := 0;~__ste_ClientKeyring_size2~0 := 0;~__ste_Client_Keyring0_User0~0 := 0;~__ste_Client_Keyring0_User1~0 := 0;~__ste_Client_Keyring0_User2~0 := 0;~__ste_Client_Keyring1_User0~0 := 0;~__ste_Client_Keyring1_User1~0 := 0;~__ste_Client_Keyring1_User2~0 := 0;~__ste_Client_Keyring2_User0~0 := 0;~__ste_Client_Keyring2_User1~0 := 0;~__ste_Client_Keyring2_User2~0 := 0;~__ste_Client_Keyring0_PublicKey0~0 := 0;~__ste_Client_Keyring0_PublicKey1~0 := 0;~__ste_Client_Keyring0_PublicKey2~0 := 0;~__ste_Client_Keyring1_PublicKey0~0 := 0;~__ste_Client_Keyring1_PublicKey1~0 := 0;~__ste_Client_Keyring1_PublicKey2~0 := 0;~__ste_Client_Keyring2_PublicKey0~0 := 0;~__ste_Client_Keyring2_PublicKey1~0 := 0;~__ste_Client_Keyring2_PublicKey2~0 := 0;~__ste_client_forwardReceiver0~0 := 0;~__ste_client_forwardReceiver1~0 := 0;~__ste_client_forwardReceiver2~0 := 0;~__ste_client_forwardReceiver3~0 := 0;~__ste_client_idCounter0~0 := 0;~__ste_client_idCounter1~0 := 0;~__ste_client_idCounter2~0 := 0;~queue_empty~0 := 1;~queued_message~0 := 0;~queued_client~0 := 0; 353#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet24#1, main_#t~ret25#1, main_~retValue_acc~2#1, main_~tmp~2#1;main_~retValue_acc~2#1 := main_#t~nondet24#1;havoc main_#t~nondet24#1;havoc main_~tmp~2#1;assume { :begin_inline_select_helpers } true; 171#L283true assume { :end_inline_select_helpers } true;assume { :begin_inline_select_features } true; 205#L276true assume { :end_inline_select_features } true;assume { :begin_inline_valid_product } true;havoc valid_product_#res#1;havoc valid_product_~retValue_acc~1#1;havoc valid_product_~retValue_acc~1#1;valid_product_~retValue_acc~1#1 := 1;valid_product_#res#1 := valid_product_~retValue_acc~1#1; 162#L291true main_#t~ret25#1 := valid_product_#res#1;assume { :end_inline_valid_product } true;main_~tmp~2#1 := main_#t~ret25#1;havoc main_#t~ret25#1; 426#L414true assume 0 != main_~tmp~2#1;assume { :begin_inline_setup } true;havoc setup_#t~nondet21#1, setup_#t~nondet22#1, setup_#t~nondet23#1, setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset, setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset, setup_~__cil_tmp3~0#1.base, setup_~__cil_tmp3~0#1.offset;havoc setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset;havoc setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset;havoc setup_~__cil_tmp3~0#1.base, setup_~__cil_tmp3~0#1.offset;~bob~0 := 1;assume { :begin_inline_setup_bob } true;setup_bob_#in~bob___0#1 := ~bob~0;havoc setup_bob_~bob___0#1;setup_bob_~bob___0#1 := setup_bob_#in~bob___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_bob_~bob___0#1, setup_bob_~bob___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 190#L2285true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 279#L2291-2true assume { :end_inline_setClientId } true; 218#L324true assume { :end_inline_setup_bob } true;setup_~__cil_tmp1~0#1.base, setup_~__cil_tmp1~0#1.offset := 6, 0;havoc setup_#t~nondet21#1;~rjh~0 := 2;assume { :begin_inline_setup_rjh } true;setup_rjh_#in~rjh___0#1 := ~rjh~0;havoc setup_rjh_~rjh___0#1;setup_rjh_~rjh___0#1 := setup_rjh_#in~rjh___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_rjh_~rjh___0#1, setup_rjh_~rjh___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 78#L2285-2true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 216#L2291-5true assume { :end_inline_setClientId } true; 34#L334true assume { :end_inline_setup_rjh } true;setup_~__cil_tmp2~0#1.base, setup_~__cil_tmp2~0#1.offset := 7, 0;havoc setup_#t~nondet22#1;~chuck~0 := 3;assume { :begin_inline_setup_chuck } true;setup_chuck_#in~chuck___0#1 := ~chuck~0;havoc setup_chuck_~chuck___0#1;setup_chuck_~chuck___0#1 := setup_chuck_#in~chuck___0#1;assume { :begin_inline_setClientId } true;setClientId_#in~handle#1, setClientId_#in~value#1 := setup_chuck_~chuck___0#1, setup_chuck_~chuck___0#1;havoc setClientId_~handle#1, setClientId_~value#1;setClientId_~handle#1 := setClientId_#in~handle#1;setClientId_~value#1 := setClientId_#in~value#1; 421#L2285-4true assume 1 == setClientId_~handle#1;~__ste_client_idCounter0~0 := setClientId_~value#1; 270#L2291-8true assume { :end_inline_setClientId } true; 31#L344true assume { :end_inline_setup_chuck } true;setup_~__cil_tmp3~0#1.base, setup_~__cil_tmp3~0#1.offset := 8, 0;havoc setup_#t~nondet23#1; 207#L401true assume { :end_inline_setup } true;assume { :begin_inline_test } true;havoc test_#t~nondet4#1, test_#t~nondet5#1, test_#t~nondet6#1, test_#t~nondet7#1, test_#t~nondet8#1, test_#t~nondet9#1, test_#t~nondet10#1, test_#t~nondet11#1, test_#t~nondet12#1, test_#t~nondet13#1, test_#t~nondet14#1, test_~op1~0#1, test_~op2~0#1, test_~op3~0#1, test_~op4~0#1, test_~op5~0#1, test_~op6~0#1, test_~op7~0#1, test_~op8~0#1, test_~op9~0#1, test_~op10~0#1, test_~op11~0#1, test_~splverifierCounter~0#1, test_~tmp~0#1, test_~tmp___0~0#1, test_~tmp___1~0#1, test_~tmp___2~0#1, test_~tmp___3~0#1, test_~tmp___4~0#1, test_~tmp___5~0#1, test_~tmp___6~0#1, test_~tmp___7~0#1, test_~tmp___8~0#1, test_~tmp___9~0#1;havoc test_~op1~0#1;havoc test_~op2~0#1;havoc test_~op3~0#1;havoc test_~op4~0#1;havoc test_~op5~0#1;havoc test_~op6~0#1;havoc test_~op7~0#1;havoc test_~op8~0#1;havoc test_~op9~0#1;havoc test_~op10~0#1;havoc test_~op11~0#1;havoc test_~splverifierCounter~0#1;havoc test_~tmp~0#1;havoc test_~tmp___0~0#1;havoc test_~tmp___1~0#1;havoc test_~tmp___2~0#1;havoc test_~tmp___3~0#1;havoc test_~tmp___4~0#1;havoc test_~tmp___5~0#1;havoc test_~tmp___6~0#1;havoc test_~tmp___7~0#1;havoc test_~tmp___8~0#1;havoc test_~tmp___9~0#1;test_~op1~0#1 := 0;test_~op2~0#1 := 0;test_~op3~0#1 := 0;test_~op4~0#1 := 0;test_~op5~0#1 := 0;test_~op6~0#1 := 0;test_~op7~0#1 := 0;test_~op8~0#1 := 0;test_~op9~0#1 := 0;test_~op10~0#1 := 0;test_~op11~0#1 := 0;test_~splverifierCounter~0#1 := 0; 392#L219-1true [2021-12-15 17:15:33,370 INFO L793 eck$LassoCheckResult]: Loop: 392#L219-1true assume !false; 93#L92true assume test_~splverifierCounter~0#1 < 4; 236#L93true test_~splverifierCounter~0#1 := 1 + test_~splverifierCounter~0#1; 90#L99true assume 0 == test_~op1~0#1;test_~tmp___9~0#1 := test_#t~nondet4#1;havoc test_#t~nondet4#1; 422#L103true assume 0 != test_~tmp___9~0#1;test_~op1~0#1 := 1; 392#L219-1true [2021-12-15 17:15:33,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:15:33,376 INFO L85 PathProgramCache]: Analyzing trace with hash -546462003, now seen corresponding path program 1 times [2021-12-15 17:15:33,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:15:33,384 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1183882020] [2021-12-15 17:15:33,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:15:33,385 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:15:33,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:15:33,663 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 17:15:33,664 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:15:33,664 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1183882020] [2021-12-15 17:15:33,664 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1183882020] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:15:33,665 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:15:33,665 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:15:33,666 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [237928278] [2021-12-15 17:15:33,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:15:33,670 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:15:33,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:15:33,671 INFO L85 PathProgramCache]: Analyzing trace with hash 107009368, now seen corresponding path program 1 times [2021-12-15 17:15:33,671 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:15:33,672 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [515110383] [2021-12-15 17:15:33,672 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:15:33,672 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:15:33,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:15:33,691 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:15:33,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:15:33,721 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:15:33,766 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:818) 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 17:15:33,774 INFO L158 Benchmark]: Toolchain (without parser) took 2614.16ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 73.5MB in the beginning and 101.0MB in the end (delta: -27.4MB). Peak memory consumption was 28.7MB. Max. memory is 16.1GB. [2021-12-15 17:15:33,775 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:15:33,776 INFO L158 Benchmark]: CACSL2BoogieTranslator took 649.85ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 55.6MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 17:15:33,777 INFO L158 Benchmark]: Boogie Procedure Inliner took 153.52ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 55.6MB in the beginning and 130.4MB in the end (delta: -74.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. [2021-12-15 17:15:33,779 INFO L158 Benchmark]: Boogie Preprocessor took 107.01ms. Allocated memory is still 161.5MB. Free memory was 130.4MB in the beginning and 124.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:15:33,780 INFO L158 Benchmark]: RCFGBuilder took 1107.16ms. Allocated memory is still 161.5MB. Free memory was 124.1MB in the beginning and 58.0MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. [2021-12-15 17:15:33,781 INFO L158 Benchmark]: BuchiAutomizer took 589.25ms. Allocated memory is still 161.5MB. Free memory was 58.0MB in the beginning and 101.0MB in the end (delta: -43.0MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:15:33,787 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 104.9MB. Free memory is still 61.2MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 649.85ms. Allocated memory is still 104.9MB. Free memory was 73.3MB in the beginning and 55.6MB in the end (delta: 17.7MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 153.52ms. Allocated memory was 104.9MB in the beginning and 161.5MB in the end (delta: 56.6MB). Free memory was 55.6MB in the beginning and 130.4MB in the end (delta: -74.7MB). Peak memory consumption was 12.8MB. Max. memory is 16.1GB. * Boogie Preprocessor took 107.01ms. Allocated memory is still 161.5MB. Free memory was 130.4MB in the beginning and 124.1MB in the end (delta: 6.3MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * RCFGBuilder took 1107.16ms. Allocated memory is still 161.5MB. Free memory was 124.1MB in the beginning and 58.0MB in the end (delta: 66.1MB). Peak memory consumption was 67.1MB. Max. memory is 16.1GB. * BuchiAutomizer took 589.25ms. Allocated memory is still 161.5MB. Free memory was 58.0MB in the beginning and 101.0MB in the end (delta: -43.0MB). 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 17:15:33,852 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