./Ultimate.py --spec ../sv-benchmarks/c/properties/termination.prp --file ../sv-benchmarks/c/loops/for_infinite_loop_1.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/loops/for_infinite_loop_1.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 c17b441a3a41e59254a60cafcf3cc7598a3f304d78ae8f2384f656f9e2144d40 --- Real Ultimate output --- This is Ultimate 0.2.2-3a877d227dc491413fd706022d0c47cd97beb353-3a877d2 [2021-12-15 17:09:57,497 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-12-15 17:09:57,499 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-12-15 17:09:57,544 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-12-15 17:09:57,544 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-12-15 17:09:57,547 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-12-15 17:09:57,548 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-12-15 17:09:57,550 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-12-15 17:09:57,551 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-12-15 17:09:57,554 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-12-15 17:09:57,555 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-12-15 17:09:57,556 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-12-15 17:09:57,556 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-12-15 17:09:57,558 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-12-15 17:09:57,559 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-12-15 17:09:57,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-12-15 17:09:57,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-12-15 17:09:57,564 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-12-15 17:09:57,566 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-12-15 17:09:57,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-12-15 17:09:57,575 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-12-15 17:09:57,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-12-15 17:09:57,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-12-15 17:09:57,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-12-15 17:09:57,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-12-15 17:09:57,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-12-15 17:09:57,583 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-12-15 17:09:57,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-12-15 17:09:57,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-12-15 17:09:57,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-12-15 17:09:57,585 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-12-15 17:09:57,586 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-12-15 17:09:57,587 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-12-15 17:09:57,587 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-12-15 17:09:57,588 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-12-15 17:09:57,588 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-12-15 17:09:57,589 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-12-15 17:09:57,589 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-12-15 17:09:57,589 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-12-15 17:09:57,590 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-12-15 17:09:57,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-12-15 17:09:57,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Termination-32bit-Automizer_Default.epf [2021-12-15 17:09:57,617 INFO L113 SettingsManager]: Loading preferences was successful [2021-12-15 17:09:57,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-12-15 17:09:57,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-12-15 17:09:57,618 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-12-15 17:09:57,619 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-12-15 17:09:57,619 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-12-15 17:09:57,619 INFO L138 SettingsManager]: * Use SBE=true [2021-12-15 17:09:57,619 INFO L136 SettingsManager]: Preferences of BuchiAutomizer differ from their defaults: [2021-12-15 17:09:57,619 INFO L138 SettingsManager]: * NCSB implementation=INTSET_LAZY3 [2021-12-15 17:09:57,619 INFO L138 SettingsManager]: * Use old map elimination=false [2021-12-15 17:09:57,620 INFO L138 SettingsManager]: * Use external solver (rank synthesis)=false [2021-12-15 17:09:57,620 INFO L138 SettingsManager]: * Use only trivial implications for array writes=true [2021-12-15 17:09:57,620 INFO L138 SettingsManager]: * Rank analysis=LINEAR_WITH_GUESSES [2021-12-15 17:09:57,620 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * sizeof long=4 [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-12-15 17:09:57,621 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=ASSUME [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=ASSUME [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=ASSUME [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * sizeof long double=12 [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * Assume nondeterminstic values are in range=false [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * Use constant arrays=true [2021-12-15 17:09:57,622 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=ASSUME [2021-12-15 17:09:57,623 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-12-15 17:09:57,623 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-12-15 17:09:57,623 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-12-15 17:09:57,623 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-12-15 17:09:57,623 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-12-15 17:09:57,624 INFO L136 SettingsManager]: Preferences of IcfgTransformer differ from their defaults: [2021-12-15 17:09:57,625 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(F end) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> c17b441a3a41e59254a60cafcf3cc7598a3f304d78ae8f2384f656f9e2144d40 [2021-12-15 17:09:57,821 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-12-15 17:09:57,839 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-12-15 17:09:57,841 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-12-15 17:09:57,842 INFO L271 PluginConnector]: Initializing CDTParser... [2021-12-15 17:09:57,842 INFO L275 PluginConnector]: CDTParser initialized [2021-12-15 17:09:57,843 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-12-15 17:09:57,889 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0261a51/cdd14f4ee7b5498cac9c0c8be77685e4/FLAG3f29f5ee8 [2021-12-15 17:09:58,267 INFO L306 CDTParser]: Found 1 translation units. [2021-12-15 17:09:58,267 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/loops/for_infinite_loop_1.c [2021-12-15 17:09:58,275 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0261a51/cdd14f4ee7b5498cac9c0c8be77685e4/FLAG3f29f5ee8 [2021-12-15 17:09:58,287 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ba0261a51/cdd14f4ee7b5498cac9c0c8be77685e4 [2021-12-15 17:09:58,289 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-12-15 17:09:58,290 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2021-12-15 17:09:58,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-12-15 17:09:58,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-12-15 17:09:58,296 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-12-15 17:09:58,297 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,297 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4d7289d9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58, skipping insertion in model container [2021-12-15 17:09:58,298 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,302 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-12-15 17:09:58,311 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-12-15 17:09:58,449 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/loops/for_infinite_loop_1.c[418,431] [2021-12-15 17:09:58,458 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:09:58,465 INFO L203 MainTranslator]: Completed pre-run [2021-12-15 17:09:58,473 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/loops/for_infinite_loop_1.c[418,431] [2021-12-15 17:09:58,476 INFO L209 PostProcessor]: Analyzing one entry point: main [2021-12-15 17:09:58,487 INFO L208 MainTranslator]: Completed translation [2021-12-15 17:09:58,488 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58 WrapperNode [2021-12-15 17:09:58,488 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-12-15 17:09:58,489 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-12-15 17:09:58,489 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-12-15 17:09:58,489 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-12-15 17:09:58,494 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,498 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,510 INFO L137 Inliner]: procedures = 14, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 40 [2021-12-15 17:09:58,510 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-12-15 17:09:58,511 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-12-15 17:09:58,511 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-12-15 17:09:58,511 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-12-15 17:09:58,516 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,517 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,518 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,518 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,522 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,526 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,530 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,535 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-12-15 17:09:58,537 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-12-15 17:09:58,537 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-12-15 17:09:58,537 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-12-15 17:09:58,538 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (1/1) ... [2021-12-15 17:09:58,543 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:1024 -smt2 -in -t:12000 [2021-12-15 17:09:58,550 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-12-15 17:09:58,561 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 17:09:58,576 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 17:09:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2021-12-15 17:09:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-12-15 17:09:58,592 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-12-15 17:09:58,592 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-12-15 17:09:58,635 INFO L236 CfgBuilder]: Building ICFG [2021-12-15 17:09:58,636 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2021-12-15 17:09:58,710 INFO L277 CfgBuilder]: Performing block encoding [2021-12-15 17:09:58,713 INFO L296 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-12-15 17:09:58,714 INFO L301 CfgBuilder]: Removed 1 assume(true) statements. [2021-12-15 17:09:58,715 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:09:58 BoogieIcfgContainer [2021-12-15 17:09:58,715 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-12-15 17:09:58,716 INFO L113 PluginConnector]: ------------------------BuchiAutomizer---------------------------- [2021-12-15 17:09:58,716 INFO L271 PluginConnector]: Initializing BuchiAutomizer... [2021-12-15 17:09:58,718 INFO L275 PluginConnector]: BuchiAutomizer initialized [2021-12-15 17:09:58,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:58,719 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "CDTParser AST 15.12 05:09:58" (1/3) ... [2021-12-15 17:09:58,719 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3091e096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:09:58, skipping insertion in model container [2021-12-15 17:09:58,719 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:58,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 15.12 05:09:58" (2/3) ... [2021-12-15 17:09:58,720 INFO L205 PluginConnector]: Invalid model from BuchiAutomizer for observer de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer.BuchiAutomizerObserver@3091e096 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.buchiautomizer AST 15.12 05:09:58, skipping insertion in model container [2021-12-15 17:09:58,720 INFO L99 BuchiAutomizer]: Safety of program was proven or not checked, starting termination analysis [2021-12-15 17:09:58,720 INFO L185 PluginConnector]: Executing the observer BuchiAutomizerObserver from plugin BuchiAutomizer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.12 05:09:58" (3/3) ... [2021-12-15 17:09:58,721 INFO L388 chiAutomizerObserver]: Analyzing ICFG for_infinite_loop_1.c [2021-12-15 17:09:58,747 INFO L359 BuchiCegarLoop]: Interprodecural is true [2021-12-15 17:09:58,763 INFO L360 BuchiCegarLoop]: Hoare is false [2021-12-15 17:09:58,763 INFO L361 BuchiCegarLoop]: Compute interpolants for ForwardPredicates [2021-12-15 17:09:58,763 INFO L362 BuchiCegarLoop]: Backedges is STRAIGHT_LINE [2021-12-15 17:09:58,764 INFO L363 BuchiCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-12-15 17:09:58,764 INFO L364 BuchiCegarLoop]: Difference is false [2021-12-15 17:09:58,764 INFO L365 BuchiCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-12-15 17:09:58,764 INFO L368 BuchiCegarLoop]: ======== Iteration 0==of CEGAR loop == BuchiCegarLoop======== [2021-12-15 17:09:58,779 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 17:09:58,795 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-15 17:09:58,796 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:09:58,796 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:09:58,800 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-15 17:09:58,801 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:09:58,801 INFO L425 BuchiCegarLoop]: ======== Iteration 1============ [2021-12-15 17:09:58,801 INFO L72 BuchiIsEmpty]: Start buchiIsEmpty. Operand has 15 states, 14 states have (on average 1.3571428571428572) internal successors, (19), 14 states have internal predecessors, (19), 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 17:09:58,802 INFO L131 ngComponentsAnalysis]: Automaton has 1 accepting balls. 5 [2021-12-15 17:09:58,802 INFO L87 BuchiIsEmpty]: Finished buchiIsEmpty Result is false [2021-12-15 17:09:58,803 INFO L119 BuchiIsEmpty]: Starting construction of run [2021-12-15 17:09:58,803 INFO L842 BuchiCegarLoop]: Counterexample stem histogram [1, 1, 1] [2021-12-15 17:09:58,803 INFO L843 BuchiCegarLoop]: Counterexample loop histogram [1, 1, 1, 1] [2021-12-15 17:09:58,816 INFO L791 eck$LassoCheckResult]: Stem: 5#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); 7#L-1true assume { :end_inline_ULTIMATE.init } true;assume { :begin_inline_main } true;havoc main_#res#1;havoc main_#t~nondet4#1, main_#t~post5#1, main_~i~0#1, main_~x~0#1, main_~y~0#1, main_~n~0#1;main_~i~0#1 := 0;main_~x~0#1 := 0;main_~y~0#1 := 0;main_~n~0#1 := main_#t~nondet4#1;havoc main_#t~nondet4#1; 9#L22true assume !!(main_~n~0#1 > 0);main_~i~0#1 := 0; 15#L23-3true [2021-12-15 17:09:58,817 INFO L793 eck$LassoCheckResult]: Loop: 15#L23-3true assume !false;assume { :begin_inline___VERIFIER_assert } true;__VERIFIER_assert_#in~cond#1 := (if 0 == main_~x~0#1 then 1 else 0);havoc __VERIFIER_assert_~cond#1;__VERIFIER_assert_~cond#1 := __VERIFIER_assert_#in~cond#1; 13#L10true assume !(0 == __VERIFIER_assert_~cond#1); 4#L10-2true assume { :end_inline___VERIFIER_assert } true; 12#L23-2true main_#t~post5#1 := main_~i~0#1;main_~i~0#1 := 1 + main_#t~post5#1;havoc main_#t~post5#1; 15#L23-3true [2021-12-15 17:09:58,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:58,821 INFO L85 PathProgramCache]: Analyzing trace with hash 29860, now seen corresponding path program 1 times [2021-12-15 17:09:58,827 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:58,827 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [367813938] [2021-12-15 17:09:58,827 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:58,828 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:58,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,896 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,923 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:58,926 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:58,926 INFO L85 PathProgramCache]: Analyzing trace with hash 1392330, now seen corresponding path program 1 times [2021-12-15 17:09:58,926 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:58,927 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [918603105] [2021-12-15 17:09:58,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:58,928 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:58,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,947 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:58,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,960 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:58,961 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-12-15 17:09:58,962 INFO L85 PathProgramCache]: Analyzing trace with hash 1807002093, now seen corresponding path program 1 times [2021-12-15 17:09:58,962 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-12-15 17:09:58,962 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1967156887] [2021-12-15 17:09:58,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-12-15 17:09:58,963 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-12-15 17:09:58,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,982 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-12-15 17:09:58,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-12-15 17:09:58,996 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-12-15 17:09:59,080 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 17:09:59,087 INFO L158 Benchmark]: Toolchain (without parser) took 795.47ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 60.4MB in the beginning and 58.2MB in the end (delta: 2.2MB). Peak memory consumption was 20.3MB. Max. memory is 16.1GB. [2021-12-15 17:09:59,087 INFO L158 Benchmark]: CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:09:59,088 INFO L158 Benchmark]: CACSL2BoogieTranslator took 195.05ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 87.0MB in the end (delta: -26.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:09:59,089 INFO L158 Benchmark]: Boogie Procedure Inliner took 21.41ms. Allocated memory is still 109.1MB. Free memory was 87.0MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. [2021-12-15 17:09:59,089 INFO L158 Benchmark]: Boogie Preprocessor took 24.59ms. Allocated memory is still 109.1MB. Free memory was 85.5MB in the beginning and 84.9MB in the end (delta: 543.4kB). There was no memory consumed. Max. memory is 16.1GB. [2021-12-15 17:09:59,090 INFO L158 Benchmark]: RCFGBuilder took 178.58ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2021-12-15 17:09:59,091 INFO L158 Benchmark]: BuchiAutomizer took 369.51ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 58.2MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. Max. memory is 16.1GB. [2021-12-15 17:09:59,097 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.14ms. Allocated memory is still 88.1MB. Free memory is still 45.6MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 195.05ms. Allocated memory was 88.1MB in the beginning and 109.1MB in the end (delta: 21.0MB). Free memory was 60.1MB in the beginning and 87.0MB in the end (delta: -26.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 21.41ms. Allocated memory is still 109.1MB. Free memory was 87.0MB in the beginning and 85.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 24.59ms. Allocated memory is still 109.1MB. Free memory was 85.5MB in the beginning and 84.9MB in the end (delta: 543.4kB). There was no memory consumed. Max. memory is 16.1GB. * RCFGBuilder took 178.58ms. Allocated memory is still 109.1MB. Free memory was 84.9MB in the beginning and 76.1MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * BuchiAutomizer took 369.51ms. Allocated memory is still 109.1MB. Free memory was 76.1MB in the beginning and 58.2MB in the end (delta: 17.9MB). Peak memory consumption was 18.9MB. 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 17:09:59,129 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