./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label32.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/eca-rers2012/Problem01_label32.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 2b0b2a9797b90f95684a46496de9717e82eef5c31235380fd2859f2748d0f286 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:07:27,569 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:07:27,571 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:07:27,603 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:07:27,603 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:07:27,604 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:07:27,605 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:07:27,607 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:07:27,608 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:07:27,609 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:07:27,610 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:07:27,611 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:07:27,611 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:07:27,612 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:07:27,613 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:07:27,614 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:07:27,615 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:07:27,616 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:07:27,618 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:07:27,620 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:07:27,621 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:07:27,622 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:07:27,623 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:07:27,624 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:07:27,627 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:07:27,627 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:07:27,628 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:07:27,628 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:07:27,629 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:07:27,630 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:07:27,630 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:07:27,631 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:07:27,631 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:07:27,632 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:07:27,633 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:07:27,633 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:07:27,634 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:07:27,634 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:07:27,634 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:07:27,635 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:07:27,636 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:07:27,637 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:07:27,677 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:07:27,679 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:07:27,680 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:07:27,680 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:07:27,682 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:07:27,683 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:07:27,683 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:07:27,683 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:07:27,683 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:07:27,683 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:07:27,684 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:07:27,684 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:07:27,685 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:07:27,685 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:07:27,685 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:07:27,685 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:07:27,685 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:07:27,686 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:07:27,686 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:07:27,686 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:07:27,686 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:07:27,686 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:07:27,687 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:07:27,687 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:07:27,687 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:07:27,687 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:07:27,687 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:07:27,688 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:07:27,688 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:07:27,688 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:07:27,688 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:07:27,688 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:07:27,689 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:07:27,689 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 2b0b2a9797b90f95684a46496de9717e82eef5c31235380fd2859f2748d0f286 [2021-12-15 17:07:27,909 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:07:27,937 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:07:27,940 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:07:27,941 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:07:27,941 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:07:27,942 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label32.c [2021-12-15 17:07:28,004 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe7798f0/3c2de7d9bd2e484fa431f3064752a19a/FLAG3c1fbfd14 [2021-12-15 17:07:28,498 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:07:28,498 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label32.c [2021-12-15 17:07:28,524 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe7798f0/3c2de7d9bd2e484fa431f3064752a19a/FLAG3c1fbfd14 [2021-12-15 17:07:28,840 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/cbe7798f0/3c2de7d9bd2e484fa431f3064752a19a [2021-12-15 17:07:28,842 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:07:28,843 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:07:28,844 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:28,844 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:07:28,847 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:07:28,848 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:28" (1/1) ... [2021-12-15 17:07:28,848 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@24193505 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:28, skipping insertion in model container [2021-12-15 17:07:28,849 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:07:28" (1/1) ... [2021-12-15 17:07:28,854 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:07:28,897 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:07:29,125 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/eca-rers2012/Problem01_label32.c[14752,14765] [2021-12-15 17:07:29,171 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:29,184 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:07:29,284 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/eca-rers2012/Problem01_label32.c[14752,14765] [2021-12-15 17:07:29,316 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:07:29,329 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:07:29,335 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29 WrapperNode [2021-12-15 17:07:29,336 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:07:29,337 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:29,337 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:07:29,337 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:07:29,343 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,360 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,415 INFO L137 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 655 [2021-12-15 17:07:29,415 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:07:29,416 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:07:29,416 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:07:29,416 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:07:29,423 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,423 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,427 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,427 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,446 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,465 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,470 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:07:29,475 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:07:29,475 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:07:29,476 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:07:29,492 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (1/1) ... [2021-12-15 17:07:29,498 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:07:29,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:07:29,536 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 17:07:29,547 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 17:07:29,573 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:07:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:07:29,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:07:29,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:07:29,651 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:07:29,653 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:07:30,388 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:07:30,398 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:07:30,398 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:07:30,400 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:30 BoogieIcfgContainer [2021-12-15 17:07:30,401 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:07:30,401 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:07:30,402 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:07:30,405 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:07:30,405 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:30,406 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:07:28" (1/3) ... [2021-12-15 17:07:30,406 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c828f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:30, skipping insertion in model container [2021-12-15 17:07:30,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:30,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:07:29" (2/3) ... [2021-12-15 17:07:30,407 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@2c828f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:07:30, skipping insertion in model container [2021-12-15 17:07:30,407 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:07:30,407 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:07:30" (3/3) ... [2021-12-15 17:07:30,408 INFO L388 chiAutomizerObserver]: Analyzing ICFG Problem01_label32.c [2021-12-15 17:07:30,484 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:07:30,484 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:07:30,484 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:07:30,484 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:07:30,484 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:07:30,484 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:07:30,484 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:07:30,485 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:07:30,538 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.663265306122449) internal successors, (326), 196 states have internal predecessors, (326), 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 17:07:30,562 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 192 [2021-12-15 17:07:30,562 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:30,562 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:30,568 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:30,568 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:07:30,568 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:07:30,570 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 197 states, 196 states have (on average 1.663265306122449) internal successors, (326), 196 states have internal predecessors, (326), 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 17:07:30,578 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 192 [2021-12-15 17:07:30,579 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:07:30,579 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:07:30,580 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1] [2021-12-15 17:07:30,580 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:07:30,585 INFO L791 eck$LassoCheckResult]: Stem: 193#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(20, 2);call #Ultimate.allocInit(12, 3);~a~0 := 1;~d~0 := 4;~e~0 := 5;~f~0 := 6;~c~0 := 3;~b~0 := 2;~u~0 := 21;~v~0 := 22;~w~0 := 23;~x~0 := 24;~y~0 := 25;~z~0 := 26;~a17~0 := 1;~a7~0 := 0;~a20~0 := 1;~a8~0 := 15;~a12~0 := 8;~a16~0 := 5;~a21~0 := 1; 126#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet6#1, main_#t~ret7#1, main_~input~0#1, main_~output~0#1;main_~output~0#1 := -1; 130#L593-2true [2021-12-15 17:07:30,586 INFO L793 eck$LassoCheckResult]: Loop: 130#L593-2true assume !false;havoc main_~input~0#1;main_~input~0#1 := main_#t~nondet6#1;havoc main_#t~nondet6#1; 188#L598true assume !(((((1 != main_~input~0#1 && 2 != main_~input~0#1) && 3 != main_~input~0#1) && 4 != main_~input~0#1) && 5 != main_~input~0#1) && 6 != main_~input~0#1);assume { :begin_inline_calculate_output } true;calculate_output_#in~input#1 := main_~input~0#1;havoc calculate_output_#res#1;havoc calculate_output_~input#1;calculate_output_~input#1 := calculate_output_#in~input#1; 17#L41true assume (15 == ~a8~0 && (((1 == ~a21~0 && (5 == ~a16~0 || 6 == ~a16~0) && 1 == calculate_output_~input#1) && 1 == ~a20~0) && 1 == ~a17~0) && !(1 == ~a7~0)) && 8 == ~a12~0;~a16~0 := 5;~a20~0 := 0;calculate_output_#res#1 := 24; 141#L584true main_#t~ret7#1 := calculate_output_#res#1;assume { :end_inline_calculate_output } true;main_~output~0#1 := main_#t~ret7#1;havoc main_#t~ret7#1; 130#L593-2true [2021-12-15 17:07:30,590 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:30,590 INFO L85 PathProgramCache]: Analyzing trace with hash 963, now seen corresponding path program 1 times [2021-12-15 17:07:30,597 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:30,598 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [228519151] [2021-12-15 17:07:30,598 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:30,599 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:30,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,683 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:30,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,726 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:30,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:30,728 INFO L85 PathProgramCache]: Analyzing trace with hash 1268024, now seen corresponding path program 1 times [2021-12-15 17:07:30,729 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:30,730 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [678663020] [2021-12-15 17:07:30,730 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:30,730 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:30,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,755 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:30,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,784 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:30,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:07:30,786 INFO L85 PathProgramCache]: Analyzing trace with hash 889695226, now seen corresponding path program 1 times [2021-12-15 17:07:30,786 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:07:30,787 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [134045661] [2021-12-15 17:07:30,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:07:30,787 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:07:30,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,815 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:07:30,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:07:30,833 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:07:31,015 FATAL L? ?]: The Plugin de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer has thrown an exception: java.lang.UnsupportedOperationException: Set is immutable at de.uni_freiburg.informatik.ultimate.util.datastructures.ImmutableSet.retainAll(ImmutableSet.java:338) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.UnmodifiableTransFormula.removeSuperfluousVars(UnmodifiableTransFormula.java:212) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.finishConstruction(TransFormulaBuilder.java:273) at de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.cfg.transitions.TransFormulaBuilder.getTrivialTransFormula(TransFormulaBuilder.java:285) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.synthesize(LassoCheck.java:548) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.checkLoopTermination(LassoCheck.java:944) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck$LassoCheckResult.(LassoCheck.java:855) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.LassoCheck.(LassoCheck.java:252) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiCegarLoop.iterate(BuchiCegarLoop.java:457) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.doTerminationAnalysis(BuchiAutomizerObserver.java:142) at de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver.finish(BuchiAutomizerObserver.java:397) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runObserver(PluginConnector.java:168) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.runTool(PluginConnector.java:151) at de.uni_freiburg.informatik.ultimate.core.coreplugin.PluginConnector.run(PluginConnector.java:128) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.executePluginConnector(ToolchainWalker.java:232) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.processPlugin(ToolchainWalker.java:226) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walkUnprotected(ToolchainWalker.java:142) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainWalker.walk(ToolchainWalker.java:104) at de.uni_freiburg.informatik.ultimate.core.coreplugin.ToolchainManager$Toolchain.processToolchain(ToolchainManager.java:320) at de.uni_freiburg.informatik.ultimate.core.coreplugin.toolchain.DefaultToolchainJob.run(DefaultToolchainJob.java:145) at org.eclipse.core.internal.jobs.Worker.run(Worker.java:63) [2021-12-15 17:07:31,023 INFO L158 Benchmark]: Toolchain (without parser) took 2178.35ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 73.1MB in the beginning and 71.7MB in the end (delta: 1.4MB). Peak memory consumption was 20.9MB. Max. memory is 16.1GB. [2021-12-15 17:07:31,024 INFO L158 Benchmark]: CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:07:31,025 INFO L158 Benchmark]: CACSL2BoogieTranslator took 491.75ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 54.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 17:07:31,026 INFO L158 Benchmark]: Boogie Procedure Inliner took 78.74ms. Allocated memory is still 94.4MB. Free memory was 54.9MB in the beginning and 49.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. [2021-12-15 17:07:31,027 INFO L158 Benchmark]: Boogie Preprocessor took 54.17ms. Allocated memory is still 94.4MB. Free memory was 49.3MB in the beginning and 44.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. [2021-12-15 17:07:31,028 INFO L158 Benchmark]: RCFGBuilder took 925.46ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 50.3MB in the end (delta: -5.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. [2021-12-15 17:07:31,029 INFO L158 Benchmark]: BuchiAutomizer took 619.71ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 71.7MB in the end (delta: -21.4MB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:07:31,035 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17ms. Allocated memory is still 77.6MB. Free memory is still 58.3MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 491.75ms. Allocated memory is still 94.4MB. Free memory was 72.8MB in the beginning and 54.9MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 78.74ms. Allocated memory is still 94.4MB. Free memory was 54.9MB in the beginning and 49.3MB in the end (delta: 5.6MB). Peak memory consumption was 6.3MB. Max. memory is 16.1GB. * Boogie Preprocessor took 54.17ms. Allocated memory is still 94.4MB. Free memory was 49.3MB in the beginning and 44.7MB in the end (delta: 4.5MB). Peak memory consumption was 4.2MB. Max. memory is 16.1GB. * RCFGBuilder took 925.46ms. Allocated memory is still 94.4MB. Free memory was 44.7MB in the beginning and 50.3MB in the end (delta: -5.6MB). Peak memory consumption was 16.2MB. Max. memory is 16.1GB. * BuchiAutomizer took 619.71ms. Allocated memory was 94.4MB in the beginning and 113.2MB in the end (delta: 18.9MB). Free memory was 50.3MB in the beginning and 71.7MB in the end (delta: -21.4MB). 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 17:07:31,078 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Using bit-precise analysis No suitable file found in config dir /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config using search string *Termination*32bit*_Bitvector*.epf No suitable settings file found using Termination*32bit*_Bitvector ERROR: UNSUPPORTED PROPERTY Writing output log to file Ultimate.log Result: ERROR: ExceptionOrErrorResult: UnsupportedOperationException: Set is immutable