./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/systemc/mem_slave_tlm.2.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/systemc/mem_slave_tlm.2.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 68ec02878969b041c7f7a32af94816f6626efeef23b5da7ea64f6e61f6ff6501 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:20:16,349 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:20:16,352 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:20:16,396 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:20:16,396 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:20:16,399 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:20:16,400 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:20:16,403 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:20:16,405 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:20:16,409 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:20:16,410 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:20:16,411 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:20:16,412 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:20:16,414 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:20:16,416 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:20:16,419 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:20:16,420 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:20:16,421 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:20:16,423 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:20:16,429 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:20:16,430 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:20:16,431 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:20:16,433 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:20:16,434 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:20:16,440 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:20:16,441 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:20:16,441 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:20:16,442 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:20:16,443 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:20:16,444 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:20:16,444 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:20:16,445 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:20:16,446 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:20:16,447 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:20:16,448 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:20:16,449 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:20:16,449 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:20:16,450 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:20:16,450 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:20:16,451 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:20:16,451 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:20:16,452 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:20:16,487 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:20:16,488 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:20:16,488 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:20:16,488 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:20:16,489 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:20:16,490 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:20:16,490 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:20:16,490 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:20:16,490 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:20:16,490 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:20:16,491 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:20:16,491 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:20:16,492 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:20:16,492 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:20:16,492 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:20:16,492 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:20:16,492 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:20:16,493 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:20:16,494 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:20:16,494 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:20:16,494 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:20:16,494 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:20:16,494 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:20:16,494 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:20:16,495 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:20:16,495 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:20:16,495 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:20:16,496 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:20:16,496 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 68ec02878969b041c7f7a32af94816f6626efeef23b5da7ea64f6e61f6ff6501 [2021-12-15 17:20:16,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:20:16,720 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:20:16,721 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:20:16,722 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:20:16,722 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:20:16,723 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/systemc/mem_slave_tlm.2.cil.c [2021-12-15 17:20:16,785 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299482f70/16b79dab9abd412da63a1d0d971f5a78/FLAGe9e0755ec [2021-12-15 17:20:17,173 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:20:17,174 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/systemc/mem_slave_tlm.2.cil.c [2021-12-15 17:20:17,182 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299482f70/16b79dab9abd412da63a1d0d971f5a78/FLAGe9e0755ec [2021-12-15 17:20:17,562 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/299482f70/16b79dab9abd412da63a1d0d971f5a78 [2021-12-15 17:20:17,563 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:20:17,565 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:20:17,567 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:20:17,567 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:20:17,569 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:20:17,569 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:20:17" (1/1) ... [2021-12-15 17:20:17,570 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1bc0aa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:17, skipping insertion in model container [2021-12-15 17:20:17,570 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:20:17" (1/1) ... [2021-12-15 17:20:17,575 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:20:17,618 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:20:17,801 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/systemc/mem_slave_tlm.2.cil.c[646,659] [2021-12-15 17:20:17,905 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:20:17,915 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:20:17,925 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/systemc/mem_slave_tlm.2.cil.c[646,659] [2021-12-15 17:20:17,991 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:20:18,001 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:20:18,003 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18 WrapperNode [2021-12-15 17:20:18,003 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:20:18,004 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:20:18,004 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:20:18,004 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:20:18,008 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,016 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,062 INFO L137 Inliner]: procedures = 19, calls = 18, calls flagged for inlining = 13, calls inlined = 13, statements flattened = 868 [2021-12-15 17:20:18,069 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:20:18,069 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:20:18,070 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:20:18,070 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:20:18,076 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,076 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,081 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,082 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,089 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,097 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,099 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,102 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:20:18,102 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:20:18,102 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:20:18,102 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:20:18,103 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (1/1) ... [2021-12-15 17:20:18,120 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:20:18,128 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:20:18,138 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 17:20:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:20:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:20:18,165 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:20:18,165 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:20:18,159 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 17:20:18,261 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:20:18,262 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:20:18,756 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:20:18,765 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:20:18,765 INFO L301 CfgBuilder]: Removed 13 assume(true) statements. [2021-12-15 17:20:18,772 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:20:18 BoogieIcfgContainer [2021-12-15 17:20:18,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:20:18,773 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:20:18,778 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:20:18,781 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:20:18,781 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:18,781 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:20:17" (1/3) ... [2021-12-15 17:20:18,782 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ab5955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:20:18, skipping insertion in model container [2021-12-15 17:20:18,782 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:18,782 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:20:18" (2/3) ... [2021-12-15 17:20:18,783 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@4ab5955 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:20:18, skipping insertion in model container [2021-12-15 17:20:18,783 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:20:18,783 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:20:18" (3/3) ... [2021-12-15 17:20:18,784 INFO L388 chiAutomizerObserver]: Analyzing ICFG mem_slave_tlm.2.cil.c [2021-12-15 17:20:18,812 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:20:18,812 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:20:18,813 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:20:18,813 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:20:18,813 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:20:18,813 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:20:18,813 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:20:18,813 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:20:18,827 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.8241758241758241) internal successors, (498), 273 states have internal predecessors, (498), 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 17:20:18,850 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 250 [2021-12-15 17:20:18,851 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:18,851 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:18,858 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:18,858 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:18,858 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:20:18,860 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 274 states, 273 states have (on average 1.8241758241758241) internal successors, (498), 273 states have internal predecessors, (498), 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 17:20:18,868 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 250 [2021-12-15 17:20:18,868 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:18,868 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:18,869 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:18,869 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:18,874 INFO L791 eck$LassoCheckResult]: Stem: 264#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(22, 2);call #Ultimate.allocInit(12, 3);~m_run_st~0 := 0;~m_run_i~0 := 0;~m_run_pc~0 := 0;~s_memory0~0 := 0;~s_memory1~0 := 0;~s_run_st~0 := 0;~s_run_i~0 := 0;~s_run_pc~0 := 0;~c_m_lock~0 := 0;~c_m_ev~0 := 0;~c_req_type~0 := 0;~c_req_a~0 := 0;~c_req_d~0 := 0;~c_rsp_type~0 := 0;~c_rsp_status~0 := 0;~c_rsp_d~0 := 0;~c_empty_req~0 := 0;~c_empty_rsp~0 := 0;~c_read_req_ev~0 := 0;~c_write_req_ev~0 := 0;~c_read_rsp_ev~0 := 0;~c_write_rsp_ev~0 := 0;~d_t~0 := 0;~a_t~0 := 0;~req_t_type~0 := 0;~req_t_a~0 := 0;~req_t_d~0 := 0;~rsp_t_type~0 := 0;~rsp_t_status~0 := 0;~rsp_t_d~0 := 0;~req_tt_type~0 := 0;~req_tt_a~0 := 0;~req_tt_d~0 := 0;~rsp_tt_type~0 := 0;~rsp_tt_status~0 := 0;~rsp_tt_d~0 := 0;~req_t_type___0~0 := 0;~req_t_a___0~0 := 0;~req_t_d___0~0 := 0;~rsp_t_type___0~0 := 0;~rsp_t_status___0~0 := 0;~rsp_t_d___0~0 := 0; 171#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~0#1;havoc main_~__retres1~0#1;~c_m_lock~0 := 0;~c_m_ev~0 := 2;~m_run_i~0 := 1;~m_run_pc~0 := 0;~s_run_i~0 := 1;~s_run_pc~0 := 0;~c_empty_req~0 := 1;~c_empty_rsp~0 := 1;~c_read_req_ev~0 := 2;~c_write_req_ev~0 := 2;~c_read_rsp_ev~0 := 2;~c_write_rsp_ev~0 := 2;~c_m_lock~0 := 0;~c_m_ev~0 := 2;assume { :begin_inline_start_simulation } true;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~kernel_st~0#1;start_simulation_~kernel_st~0#1 := 0; 127#L1177true assume !(1 == ~m_run_i~0);~m_run_st~0 := 2; 32#L1177-2true assume !(1 == ~s_run_i~0);~s_run_st~0 := 2; 217#L1182-1true assume 1 == ~m_run_pc~0; 220#L1188true assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 267#L1227true assume !(2 == ~s_run_pc~0); 73#L1248true assume !(1 == ~s_run_pc~0); 187#L1343-1true [2021-12-15 17:20:18,874 INFO L793 eck$LassoCheckResult]: Loop: 187#L1343-1true assume !false; 223#L1261true start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~nondet5#1, eval_#t~nondet6#1, eval_~tmp~0#1, eval_~tmp___0~0#1;havoc eval_~tmp~0#1;havoc eval_~tmp___0~0#1; 87#L1150true assume !true; 98#L1166true assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;start_simulation_~kernel_st~0#1 := 3; 216#L1268true assume 1 == ~m_run_pc~0; 233#L1269true assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 160#L1308true assume 2 == ~s_run_pc~0; 182#L1323true assume 1 == ~c_write_req_ev~0;~s_run_st~0 := 0; 167#L1330true assume 0 == ~m_run_st~0; 187#L1343-1true [2021-12-15 17:20:18,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:18,878 INFO L85 PathProgramCache]: Analyzing trace with hash 180491512, now seen corresponding path program 1 times [2021-12-15 17:20:18,884 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:18,886 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [676046767] [2021-12-15 17:20:18,886 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:18,887 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:18,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,033 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 17:20:19,033 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,033 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [676046767] [2021-12-15 17:20:19,034 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [676046767] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,034 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,034 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:20:19,035 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1293854437] [2021-12-15 17:20:19,036 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,038 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:20:19,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,043 INFO L85 PathProgramCache]: Analyzing trace with hash -1785470532, now seen corresponding path program 1 times [2021-12-15 17:20:19,043 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,043 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [926352517] [2021-12-15 17:20:19,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,044 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,072 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 17:20:19,072 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,072 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [926352517] [2021-12-15 17:20:19,072 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [926352517] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,073 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,073 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-12-15 17:20:19,073 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1364977374] [2021-12-15 17:20:19,073 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,074 INFO L808 eck$LassoCheckResult]: loop already infeasible [2021-12-15 17:20:19,075 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-12-15 17:20:19,096 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-12-15 17:20:19,097 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-12-15 17:20:19,098 INFO L87 Difference]: Start difference. First operand has 274 states, 273 states have (on average 1.8241758241758241) internal successors, (498), 273 states have internal predecessors, (498), 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 3 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 3 states have internal predecessors, (8), 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 17:20:19,128 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-12-15 17:20:19,128 INFO L93 Difference]: Finished difference Result 269 states and 461 transitions. [2021-12-15 17:20:19,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-12-15 17:20:19,132 INFO L82 GeneralOperation]: Start removeNonLiveStates. Operand 269 states and 461 transitions. [2021-12-15 17:20:19,136 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 240 [2021-12-15 17:20:19,140 INFO L88 GeneralOperation]: Finished removeNonLiveStates. Reduced from 269 states to 260 states and 452 transitions. [2021-12-15 17:20:19,141 INFO L87 BuchiClosureNwa]: Accepting states before buchiClosure: 260 [2021-12-15 17:20:19,142 INFO L106 BuchiClosureNwa]: Accepting states after buchiClosure: 260 [2021-12-15 17:20:19,142 INFO L73 IsDeterministic]: Start isDeterministic. Operand 260 states and 452 transitions. [2021-12-15 17:20:19,143 INFO L80 IsDeterministic]: Finished isDeterministic. Operand is deterministic. [2021-12-15 17:20:19,144 INFO L681 BuchiCegarLoop]: Abstraction has 260 states and 452 transitions. [2021-12-15 17:20:19,155 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 260 states and 452 transitions. [2021-12-15 17:20:19,176 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 260 to 260. [2021-12-15 17:20:19,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 260 states, 260 states have (on average 1.7384615384615385) internal successors, (452), 259 states have internal predecessors, (452), 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 17:20:19,178 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 260 states to 260 states and 452 transitions. [2021-12-15 17:20:19,179 INFO L704 BuchiCegarLoop]: Abstraction has 260 states and 452 transitions. [2021-12-15 17:20:19,179 INFO L587 BuchiCegarLoop]: Abstraction has 260 states and 452 transitions. [2021-12-15 17:20:19,179 INFO L425 BuchiCegarLoop]: ======== Iteration 2============ [2021-12-15 17:20:19,179 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand 260 states and 452 transitions. [2021-12-15 17:20:19,180 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 240 [2021-12-15 17:20:19,181 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:20:19,181 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:20:19,181 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,181 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-12-15 17:20:19,182 INFO L791 eck$LassoCheckResult]: Stem: 811#ULTIMATE.startENTRY 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(22, 2);call #Ultimate.allocInit(12, 3);~m_run_st~0 := 0;~m_run_i~0 := 0;~m_run_pc~0 := 0;~s_memory0~0 := 0;~s_memory1~0 := 0;~s_run_st~0 := 0;~s_run_i~0 := 0;~s_run_pc~0 := 0;~c_m_lock~0 := 0;~c_m_ev~0 := 0;~c_req_type~0 := 0;~c_req_a~0 := 0;~c_req_d~0 := 0;~c_rsp_type~0 := 0;~c_rsp_status~0 := 0;~c_rsp_d~0 := 0;~c_empty_req~0 := 0;~c_empty_rsp~0 := 0;~c_read_req_ev~0 := 0;~c_write_req_ev~0 := 0;~c_read_rsp_ev~0 := 0;~c_write_rsp_ev~0 := 0;~d_t~0 := 0;~a_t~0 := 0;~req_t_type~0 := 0;~req_t_a~0 := 0;~req_t_d~0 := 0;~rsp_t_type~0 := 0;~rsp_t_status~0 := 0;~rsp_t_d~0 := 0;~req_tt_type~0 := 0;~req_tt_a~0 := 0;~req_tt_d~0 := 0;~rsp_tt_type~0 := 0;~rsp_tt_status~0 := 0;~rsp_tt_d~0 := 0;~req_t_type___0~0 := 0;~req_t_a___0~0 := 0;~req_t_d___0~0 := 0;~rsp_t_type___0~0 := 0;~rsp_t_status___0~0 := 0;~rsp_t_d___0~0 := 0; 783#L-1 assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_~__retres1~0#1;havoc main_~__retres1~0#1;~c_m_lock~0 := 0;~c_m_ev~0 := 2;~m_run_i~0 := 1;~m_run_pc~0 := 0;~s_run_i~0 := 1;~s_run_pc~0 := 0;~c_empty_req~0 := 1;~c_empty_rsp~0 := 1;~c_read_req_ev~0 := 2;~c_write_req_ev~0 := 2;~c_read_rsp_ev~0 := 2;~c_write_rsp_ev~0 := 2;~c_m_lock~0 := 0;~c_m_ev~0 := 2;assume { :begin_inline_start_simulation } true;havoc start_simulation_~kernel_st~0#1;havoc start_simulation_~kernel_st~0#1;start_simulation_~kernel_st~0#1 := 0; 759#L1177 assume 1 == ~m_run_i~0;~m_run_st~0 := 0; 624#L1177-2 assume !(1 == ~s_run_i~0);~s_run_st~0 := 2; 625#L1182-1 assume 1 == ~m_run_pc~0; 808#L1188 assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 641#L1227 assume !(2 == ~s_run_pc~0); 554#L1248 assume !(1 == ~s_run_pc~0); 553#L1343-1 [2021-12-15 17:20:19,182 INFO L793 eck$LassoCheckResult]: Loop: 553#L1343-1 assume !false; 793#L1261 start_simulation_~kernel_st~0#1 := 1;assume { :begin_inline_eval } true;havoc eval_#t~nondet5#1, eval_#t~nondet6#1, eval_~tmp~0#1, eval_~tmp___0~0#1;havoc eval_~tmp~0#1;havoc eval_~tmp___0~0#1; 610#L1150 assume !false; 715#L1125 assume !(0 == ~m_run_st~0); 636#L1129 assume !(0 == ~s_run_st~0); 637#L1166 assume { :end_inline_eval } true;start_simulation_~kernel_st~0#1 := 2;start_simulation_~kernel_st~0#1 := 3; 730#L1268 assume 1 == ~m_run_pc~0; 807#L1269 assume 1 == ~c_m_ev~0;~m_run_st~0 := 0; 601#L1308 assume 2 == ~s_run_pc~0; 777#L1323 assume 1 == ~c_write_req_ev~0;~s_run_st~0 := 0; 707#L1330 assume 0 == ~m_run_st~0; 553#L1343-1 [2021-12-15 17:20:19,182 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,183 INFO L85 PathProgramCache]: Analyzing trace with hash 123233210, now seen corresponding path program 1 times [2021-12-15 17:20:19,183 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,183 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [380014751] [2021-12-15 17:20:19,183 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,183 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-12-15 17:20:19,212 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 17:20:19,212 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-12-15 17:20:19,212 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [380014751] [2021-12-15 17:20:19,212 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [380014751] provided 1 perfect and 0 imperfect interpolant sequences [2021-12-15 17:20:19,213 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2021-12-15 17:20:19,213 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-12-15 17:20:19,213 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [52186617] [2021-12-15 17:20:19,213 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2021-12-15 17:20:19,213 INFO L796 eck$LassoCheckResult]: stem already infeasible [2021-12-15 17:20:19,214 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:20:19,214 INFO L85 PathProgramCache]: Analyzing trace with hash -1440601216, now seen corresponding path program 1 times [2021-12-15 17:20:19,214 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:20:19,214 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1770668947] [2021-12-15 17:20:19,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:20:19,215 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:20:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:20:19,220 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:20:19,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:20:19,240 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:20:19,316 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 17:20:19,319 INFO L158 Benchmark]: Toolchain (without parser) took 1753.49ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 59.5MB in the beginning and 62.8MB in the end (delta: -3.3MB). Peak memory consumption was 16.4MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,320 INFO L158 Benchmark]: CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:20:19,320 INFO L158 Benchmark]: CACSL2BoogieTranslator took 436.80ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 60.7MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,321 INFO L158 Benchmark]: Boogie Procedure Inliner took 64.99ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 57.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,321 INFO L158 Benchmark]: Boogie Preprocessor took 32.36ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 54.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,322 INFO L158 Benchmark]: RCFGBuilder took 670.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 68.1MB in the end (delta: -14.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,322 INFO L158 Benchmark]: BuchiAutomizer took 545.39ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 62.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.1MB. Max. memory is 16.1GB. [2021-12-15 17:20:19,324 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.10ms. Allocated memory is still 92.3MB. Free memory was 47.5MB in the beginning and 47.4MB in the end (delta: 38.7kB). There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 436.80ms. Allocated memory is still 92.3MB. Free memory was 59.1MB in the beginning and 60.7MB in the end (delta: -1.5MB). Peak memory consumption was 10.5MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 64.99ms. Allocated memory is still 92.3MB. Free memory was 60.7MB in the beginning and 57.2MB in the end (delta: 3.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * Boogie Preprocessor took 32.36ms. Allocated memory is still 92.3MB. Free memory was 57.2MB in the beginning and 54.0MB in the end (delta: 3.1MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * RCFGBuilder took 670.10ms. Allocated memory was 92.3MB in the beginning and 111.1MB in the end (delta: 18.9MB). Free memory was 54.0MB in the beginning and 68.1MB in the end (delta: -14.1MB). Peak memory consumption was 23.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 545.39ms. Allocated memory is still 111.1MB. Free memory was 68.1MB in the beginning and 62.8MB in the end (delta: 5.4MB). Peak memory consumption was 6.1MB. 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 17:20:19,348 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